Harvard Forest

Data Archive

HF206

Microclimate at Harvard Forest HEM, LPH and EMS Towers since 2005

Related Publications

Data

• hf206-01: Hemlock microclimate, 2005-2014 (preview)
• hf206-02: Hemlock microclimate, 2014-present (preview)
• hf206-03: Hemlock understory (preview)
• hf206-04: LPH understory, 2005-2010 (preview)
• hf206-05: EMS understory (preview)

Overview

• Lead: William Munger, Julian Hadley
• Investigators: Mark VanScoy, Liza Nicoll
• Contact: Information Manager
• Start date: 2005
• End date: 2025
• Status: ongoing
• Location: Prospect Hill Tract (Harvard Forest)
• Latitude: +42.538 to +42.542 degrees
• Longitude: -72.185 to -72.171 degrees
• Elevation: 340 to 380 meter
• Datum: WGS84
• Taxa: Acer rubrum (red maple), Betula alleghaniensis (yellow birch), Betula lenta (black birch), Betula papyrifera (paper birch), Pinus resinosa (red pine), Pinus strobus (white pine), Quercus alba (white oak), Quercus rubra (red oak), Quercus velutina (black oak), Tsuga canadensis (hemlock)
• Release date: 2025
• Language: English
• EML file: knb-lter-hfr.206.30
• DOI: digital object identifier
• EDI: data package
• DataONE: data package
• Related links:
• Canopy-Atmosphere Exchange of Carbon, Water and Energy at Harvard Forest EMS Tower since 1991
• Net Carbon Exchange of an Old-Growth Hemlock Forest at Harvard Forest HEM Tower since 2000
• Net Carbon Exchange of a Young Upper-Slope Deciduous Forest at Harvard Forest LPH Tower since 2002
• Study type: long-term measurement
• Research topic: large experiments and permanent plot studies
• LTER core area: primary production
• Keywords: air temperature, microclimate, net radiation, photosynthetically active radiation, relative humidity, soil temperature
• Abstract:

  Microclimatic data are collected continuously within footprint areas of the flux towers in order to (1) understand relationships between climatic and microclimatic conditions and carbon dioxide and water vapor exchange between forest and atmosphere, (2) to develop predictive models for the exchange rates of these gases, based on microclimate data, (3) detect long-term trends in climate and microclimate at the sites and (4) determine whether the response of carbon dioxide and water vapor exchange processes to climate or microclimate is changing over time. The primary climatic and microclimatic variables measured at these sites include: above-canopy photosynthetically active radiation (PAR), forest understory PAR at 1 m height, total net radiation exchange measured above the forest canopy, air temperature and relative humidity above the forest canopy, forest understory air temperature at 20 cm and 1 m above ground level (shielded but not ventilated thermocouple sensors, used only to estimate nighttime understory air temperature), soil temperature at 10 cm depth, and soil moisture.

• Methods:

  Microclimate Sensors

  Air and soil temperature thermocouple sensors: Copper-constantan, hand-made from wire supplied by Omega Engineering (Stamford, CT, USA). Photosynthetically active radiation (PAR): LI-190 SA quantum sensors--Licor. Co-located air temperature and relative humidity sensors: Campbell HMP 45C (replaced august 2014); Campbell CS215 (august 2014 – present). Aspirated Radiation shield: Model 43502 RM Young (2014-present). Radiation-shielded and ventilated precision air temperature sensors (2010-2014): Met-One, Inc., Grants Pass, OR, USA). Soil moisture sensors: Campbell CS-616. Net radiometer: Kippen Zonen, NR-Lite (2005-2014).

  Hemlock Tower

  On the flux tower, the PAR and HMP 45C temperature and relative humidity sensors are about 24 m above the ground, higher than all but a few branches of the surrounding trees. The aspirated precision air temperature is at about 23 m above ground. The net radiometer is about 28.5 m above ground, near the height of the sonic anemometer and intake ports for the eddy flux system (29 m). The HK2 datalogger is 100 m from the tower at a compass bearing of about 200 degrees, and the HK3 datalogger is 100 m from the tower at a 230-degree bearing. Around each of these datalogger, 3 understory PAR sensors are located at randomly chosen distances of 30 to 50 m at compass bearings of 0, 120 and 240 degrees from the datalogger. Four 10-cm deep soil temperature thermocouples are at randomly chosen distances of 10 to 20 m due N, E, S, and W of each datalogger. Two pairs of thermocouples that measure understory air temperature at 20 cm and 1 m above ground, shielded from radiant exchange with the sky, are at randomly chosen distances of 10 to 20 m N and S of each datalogger.

  In July 2014 all micro met sensors were moved to a new Rohn 45 GSR, 33 meter tower. This tower is 10 meters northeast of the old walkup tower. At that time some of the sensors were upgraded. Soil temperature thermocouple sensors: Copper-constantan, hand-made from wire supplied by Omega Engineering (Stamford, CT, USA). Photosynthetically active radiation (PAR): LI-190 SA quantum sensors--Licor. Co-located air temperature and relative humidity sensors: Campbell HMP CS215. Aspirated radiation shield and 05103 wind monitor: RM Young(Traverse City, Michigan). Soil moisture sensors: Campbell CS-616. NR01 Four component net radiometer: Hukseflux USA (Manorville, NY).

  On the south side of the flux tower, the four component net radiometer, PAR (up and down facing), aspirated temperature and RH are about 32 above the ground, higher than branches of the surrounding trees. These are at the same height as the sonic anemometer and intake ports for the eddy flux system (32 m). The mid canopy sensors are located at 20 meters and include PAR and aspirated temperate and RH. The lower canopy are located at 10 meters and include PAR and aspirated temperate and RH. The wind speed and direction anemometer is located at 34 meters at the top of the tower.

  The HK2 datalogger is 100 m from the tower at a compass bearing of about 200 degrees, and the HK3 datalogger is 100 m from the tower at a 230-degree bearing. Around each of these datalogger, 3 understory PAR sensors are located at randomly chosen distances of 30 to 50 m at compass bearings of 0, 120 and 240 degrees from the datalogger. Four 10-cm deep soil temperature thermocouples are at randomly chosen distances of 10 to 20 m due N, E, S, and W of each datalogger. Two pairs of thermocouples that measure understory air temperature at 20 cm and 1 m above ground, shielded from radiant exchange with the sky, are at randomly chosen distances of 10 to 20 m N and S of each datalogger. Two soil moisture sensors are set to measure the top 15 cm soil north and south of the datalogger.

  Little Prospect Hill Tower

  On the flux tower, the PAR sensor is at the level of the highest canopy branches (about 21 m above the ground), the HMP 45C temperature and relative humidity sensor is about 2 m higher than this, and the aspirated high precision temperature sensor is about 24 m above ground. The net radiometer is about 27 m above ground. The LP225B datalogger is 200 m from the tower at a compass bearing of 225 degrees, and the LP300B datalogger is 200 m from the tower at a 300-degree bearing. Around each of these, 3 understory PAR sensors are located at randomly chosen distances of 20 to 30 m at compass bearings of 0, 120 and 240 degrees from the datalogger. Four 10-cm deep soil temperature thermocouples are at randomly chosen distances of 10 to 20 m due N, E, S, and W of each datalogger. The thermocouples for soil temperature measurement are inserted at an angle of 45 degrees from horizontal, to increase the length of buried wire and reduce heat conduction from the surface to the buried thermocouple. Two pairs of thermocouples that measure understory air temperature at 20 cm and 1 m above ground, shielded from radiant exchange with the sky, are at randomly chosen distances of 10 to 20 m N and S of each datalogger.

  Microclimate and eddy covariance measurements were discontinued at this site at the end of December of 2010.

  EMS Tower

  Two sets of instrumentation were established in the footprint of the EMS Flux tower. EMS1 has 3 understory PAR sensors are located within the C3, C2, and B2 EMS biometry plots. EMS2 has 3 understory PAR sensors are located within the F3, F2, and E3 EMS biometry plots. Four 10-cm deep soil temperature thermocouples are at randomly chosen distances of 10 to 20 m due N, E, S, and W of each datalogger. Two pairs of thermocouples that measure understory air temperature at 20 cm and 1 m above ground, shielded from radiant exchange with the sky, are at randomly chosen distances of 10 to 20 m N and S of each datalogger. Two soil moisture sensors are set to measure the top 15 cm soil north and south of the datalogger.

• Organization: Harvard Forest. 324 North Main Street, Petersham, MA 01366, USA. Phone (978) 724-3302. Fax (978) 724-3595.

• Project: The Harvard Forest Long-Term Ecological Research (LTER) program examines ecological dynamics in the New England region resulting from natural disturbances, environmental change, and human impacts. (ROR).

• Funding: National Science Foundation LTER grants: DEB-8811764, DEB-9411975, DEB-0080592, DEB-0620443, DEB-1237491, DEB-1832210.

• Use: This dataset is released to the public under Creative Commons CC0 1.0 (No Rights Reserved). Please keep the dataset creators informed of any plans to use the dataset. Consultation with the original investigators is strongly encouraged. Publications and data products that make use of the dataset should include proper acknowledgement.

• License: Creative Commons Zero v1.0 Universal (CC0-1.0)

• Citation: Munger W, Hadley J. 2025. Microclimate at Harvard Forest HEM, LPH and EMS Towers since 2005. Harvard Forest Data Archive: HF206 (v.30). Environmental Data Initiative: https://doi.org/10.6073/pasta/43f37233c7c9ee1513d674ea2a0510c7.

Detailed Metadata

hf206-01: Hemlock microclimate, 2005-2014

1. year: year
2. datetime: date and time (EST)
3. dec_date: day of year, with hour of day converted to a fraction of a day (unit: nominalDay / missing value: NA)
4. month: month
5. par: photosynthetically active radiation measured above the canopy at 24 m height by a Licor 190S quantum sensor (unit: micromolePerMeterSquaredPerSecond / missing value: NA)
6. par_adj: photosynthetically active radiation measured above the canopy at 24 m height by a Licor 190S quantum sensor. Adjusted for sensor drift. (unit: micromolePerMeterSquaredPerSecond / missing value: NA)
7. par_fill: photosynthetically active radiation measured above the canopy at 24 m height by a Licor 190S quantum sensor. Adjusted for sensor drift and filled with estimated values. (unit: micromolePerMeterSquaredPerSecond / missing value: NA)
8. par_flag: flag indicating estimated PAR value
   • 0: measured value
   • 1: estimated value
9. net_rad: net radiation measured above the canopy at 28.5m (unit: wattPerMeterSquared / missing value: NA)
10. ac_tair_csi: air temperature measured above the canopy at 24 m height by a Campbell Scientific HMP35C sensor (unit: celsius / missing value: NA)
11. ac_tair_csi_fill: air temperature measured above the canopy at 24 m height by a Campbell Scientific HMP35C sensor. Filled with estimated values. (unit: celsius / missing value: NA)
12. ac_tair_csi_flag: flag indicating estimated AC_Tair_CSI value
    • 0: measured value
    • 1: estimated value
13. rh: relative humidity measured above the canopy at 23 m height by a Campbell Scientific HMP45C sensor (unit: dimensionless / missing value: NA)
14. ac_tair_toc: air temperature measured above the canopy at 24m by a shaded thermocouple (unit: celsius / missing value: NA)
15. ac_tair_toc_fill: air temperature measured above the canopy at 24m by a shaded thermocouple. Filled with estimated values. (unit: celsius / missing value: NA)
16. ac_tair_toc_flag: flag indicating estimated ac_tair_toc value
    • 0: measured value
    • 1: estimated value
17. wvp: water vapor pressure (unit: kilopascal / missing value: NA)
18. wvp_act: actual water vapor pressure (unit: kilopascal / missing value: NA)
19. vpd: vapor pressure deficit (unit: kilopascal / missing value: NA)
20. vpd_fill: vapor pressure defecit. Filled with estimated values. (unit: kilopascal / missing value: NA)
21. vpd_flag: flag indicating estimated VPD value
    • 0: measured value
    • 1: estimated value
22. tair_us_1m: air temperature measured below the canopy at 1m (unit: celsius / missing value: NA)
23. tsoil1: soil temperature 1 measured at 10 cm depth (unit: celsius / missing value: NA)
24. tsoil2: soil temperature 2 measured at 10 cm depth (unit: celsius / missing value: NA)
25. tsoil3: soil temperature 3 measured at 10 cm depth (unit: celsius / missing value: NA)
26. tsoil4: soil temperature 4 measured at 10 cm depth (unit: celsius / missing value: NA)
27. tsoil5: soil temperature 5 measured at 10 cm depth (unit: celsius / missing value: NA)
28. tsoil6: soil temperature 6 measured at 10 cm depth (unit: celsius / missing value: NA)
29. tsoil_ave: average of soil temperature 1-6 measured at 10 cm depth (unit: celsius / missing value: NA)
30. ac_tair_asp: air temperature measured above the canopy at 23m by an aspirated precision sensor (unit: celsius / missing value: NA)
31. par_max: maximum photosynthetically active radiation measured above the canopy at 24 m height by a Licor 190S quantum sensor (unit: micromolePerMeterSquaredPerSecond / missing value: NA)
32. net_rad_max: maximum net radiation measured above the canopy at 28.5m (unit: wattPerMeterSquared / missing value: NA)
33. ac_tair_csi_max: maximum air temperature measured above the canopy at 24 m height by a Campbell Scientific HMP35C sensor (unit: celsius / missing value: NA)
34. rh_max: maximum relative humidity measured above the canopy at 23 m height by a Campbell Scientific HMP45C sensor (unit: dimensionless / missing value: NA)
35. ac_tair_toc_max: maximum air temperature measured above the canopy at 24m by a shaded thermocouple (unit: celsius / missing value: NA)
36. tair_us_1m_max: maximum air temperature measured below the canopy at 1m (unit: celsius / missing value: NA)
37. tsoil1_max: maximum soil temperature 1 measured at 10 cm depth (unit: celsius / missing value: NA)
38. tsoil2_max: maximum soil temperature 2 measured at 10 cm depth (unit: celsius / missing value: NA)
39. tsoil3_max: maximum soil temperature 3 measured at 10 cm depth (unit: celsius / missing value: NA)
40. tsoil4_max: maximum soil temperature 4 measured at 10 cm depth (unit: celsius / missing value: NA)
41. tsoil5_max: maximum soil temperature 5 measured at 10 cm depth (unit: celsius / missing value: NA)
42. tsoil6_max: maximum soil temperature 6 measured at 10 cm depth (unit: celsius / missing value: NA)
43. ac_tair_asp_max: maximum air temperature measured above the canopy at 23m by an aspirated precision sensor (unit: celsius / missing value: NA)
44. par_min: minimum photosynthetically active radiation measured above the canopy at 24 m height by a Licor 190S quantum sensor (unit: micromolePerMeterSquaredPerSecond / missing value: NA)
45. net_rad_min: minimum net radiation measured above the canopy at 28.5m (unit: wattPerMeterSquared / missing value: NA)
46. ac_tair_csi_min: minimum air temperature measured above the canopy at 24 m height by a Campbell Scientific HMP35C sensor (unit: celsius / missing value: NA)
47. rh_min: minimum relative humidity measured above the canopy at 23 m height by a Campbell Scientific HMP45C sensor (unit: dimensionless / missing value: NA)
48. ac_tair_toc_min: minimum air temperature measured above the canopy at 24m by a shaded thermocouple (unit: celsius / missing value: NA)
49. tair_us_1m_min: minimum air temperature measured below the canopy at 1m (unit: celsius / missing value: NA)
50. tsoil1_min: minimum soil temperature 1 measured at 10 cm depth (unit: celsius / missing value: NA)
51. tsoil2_min: minimum soil temperature 2 measured at 10 cm depth (unit: celsius / missing value: NA)
52. tsoil3_min: minimum soil temperature 3 measured at 10 cm depth (unit: celsius / missing value: NA)
53. tsoil4_min: minimum soil temperature 4 measured at 10 cm depth (unit: celsius / missing value: NA)
54. tsoil5_min: minimum soil temperature 5 measured at 10 cm depth (unit: celsius / missing value: NA)
55. tsoil6_min: minimum soil temperature 6 measured at 10 cm depth (unit: celsius / missing value: NA)
56. ac_tair_asp_min: minimum air temperature measured above the canopy at 23m by an aspirated precision sensor (unit: celsius / missing value: NA)

hf206-02: Hemlock microclimate, 2014-present

1. datetime: date and time (EST)
2. year: year
3. dec_day: day of year with hour of day converted to fraction of day (unit: nominalDay / missing value: NA)
4. month: month
5. par: photosynthetically active radiation measured above the canopy at 24 m height by a Licor 190S quantum sensor (unit: micromolePerMeterSquaredPerSecond / missing value: NA)
6. net_rad: net radiation measured above the canopy at 30m (unit: wattPerMeterSquared / missing value: NA)
7. tair_ac: air temperature with aspirated radiation shield measured above the canopy at 33m height by a Campbell Scientific CS215 sensor (unit: celsius / missing value: NA)
8. rh: relative humidity with aspirated radiation shield measured above the canopy at 33m height by a Campbell Scientific CS215 sensor (unit: dimensionless / missing value: NA)
9. tair_ac_toc: air temperature measured above the canopy at 24m by a shaded thermocouple (unit: celsius / missing value: NA)
10. wvp: water vapor pressure (unit: kilopascal / missing value: NA)
11. wvp_act: actual water vapor pressure (unit: kilopascal / missing value: NA)
12. vpd: vapor pressure deficit (unit: kilopascal / missing value: NA)
13. tair_us_1m: air temperature measured below the canopy at 1m (unit: celsius / missing value: NA)
14. tsoil1: soil temperature 1 measured at 10 cm depth (unit: celsius / missing value: NA)
15. tsoil2: soil temperature 2 measured at 10 cm depth (unit: celsius / missing value: NA)
16. tsoil3: soil temperature 3 measured at 10 cm depth (unit: celsius / missing value: NA)
17. tsoil4: soil temperature 4 measured at 10 cm depth (unit: celsius / missing value: NA)
18. tsoil5: soil temperature 5 measured at 10 cm depth (unit: celsius / missing value: NA)
19. tsoil6: soil temperature 6 measured at 10 cm depth (unit: celsius / missing value: NA)
20. tsoil_ave: average of soil temperature 1-6 measured at 10 cm depth (unit: celsius / missing value: NA)
21. par_ac_down: photosynthetically active radiation measured above the canopy at 30 m height by a Licor 190S quantum sensor (unit: micromolePerMeterSquaredPerSecond / missing value: NA)
22. par_mid: photosynthetically active radiation measured above the canopy at 20 m height by a Licor 190S quantum sensor (unit: micromolePerMeterSquaredPerSecond / missing value: NA)
23. par_low: photosynthetically active radiation measured above the canopy at 10 m height by a Licor 190S quantum sensor (unit: micromolePerMeterSquaredPerSecond / missing value: NA)
24. albedo: Albedo as measured by NR01 at 30m (unit: wattPerMeterSquared / missing value: NA)
25. rs_down: SWin (downwelling) solar radiation from upfacing pyranometer on NR01 (unit: wattPerMeterSquared / missing value: NA)
26. rs_up: SWout (upwelling) solar radiation from downfacing pyranometer on NR01 (unit: wattPerMeterSquared / missing value: NA)
27. rl_down: LWin (downwelling) Far infrared radiation from up facing pygeometer on NR01 (unit: wattPerMeterSquared / missing value: NA)
28. rl_up: LWout (upwelling) Far infrared radiation from down facing pygeometer on NR01 (unit: wattPerMeterSquared / missing value: NA)
29. tnr01: temperature of NR01 sensor (unit: kelvin / missing value: NA)
30. tair_mid: air temperature with aspirated radiation shield measured mid canopy at 20m height by a Campbell Scientific CS215 sensor (unit: celsius / missing value: NA)
31. rh_mid: relative humidity with aspirated radiation shield measured mid canopy at 20m height by a Campbell Scientific CS215 sensor (unit: dimensionless / missing value: NA)
32. tair_low: air temperature with aspirated radiation shield measured lower canopy at 10m height by a Campbell Scientific CS215 sensor (unit: celsius / missing value: NA)
33. rh_low: relative humidity with aspirated radiation shield measured lower canopy at 10m height by a Campbell Scientific CS215 sensor (unit: dimensionless / missing value: NA)
34. ws: wind speed (unit: metersPerSecond / missing value: NA)
35. wsres: average horizontal resultant vector wind speed. Vector average of daily averages (unit: metersPerSecond / missing value: NA)
36. winddir: wind direction (unit: degree / missing value: NA)
37. winddir_sd1: wind direction standard deviation (unit: degree / missing value: NA)
38. par_max: maximum photosynthetically active radiation measured above the canopy at 24 m height by a Licor 190S quantum sensor (unit: micromolePerMeterSquaredPerSecond / missing value: NA)
39. net_rad_max: maximum net radiation measured above the canopy at 30m (unit: wattPerMeterSquared / missing value: NA)
40. tair_ac_max: maximum air temperature with aspirated radiation shield measured above the canopy at 33m height by a Campbell Scientific CS215 sensor (unit: celsius / missing value: NA)
41. rh_max: maximum relative humidity with aspirated radiation shield measured above the canopy at 33m height by a Campbell Scientific CS215 sensor (unit: dimensionless / missing value: NA)
42. tair_ac_toc_max: maximum air temperature measured above the canopy at 24m by a shaded thermocouple (unit: celsius / missing value: NA)
43. tair_us_1m_max: maximum air temperature measured below the canopy at 1m (unit: celsius / missing value: NA)
44. tsoil1_max: maximum soil temperature 1 measured at 10 cm depth (unit: celsius / missing value: NA)
45. tsoil2_max: maximum soil temperature 2 measured at 10 cm depth (unit: celsius / missing value: NA)
46. tsoil3_max: maximum soil temperature 3 measured at 10 cm depth (unit: celsius / missing value: NA)
47. tsoil4_max: maximum soil temperature 4 measured at 10 cm depth (unit: celsius / missing value: NA)
48. tsoil5_max: maximum soil temperature 5 measured at 10 cm depth (unit: celsius / missing value: NA)
49. tsoil6_max: maximum soil temperature 6 measured at 10 cm depth (unit: celsius / missing value: NA)
50. par_ac_down_max: photosynthetically active radiation measured above the canopy at 30 m height by a Licor 190S quantum sensor (unit: micromolePerMeterSquaredPerSecond / missing value: NA)
51. par_mid_max: maximum photosynthetically active radiation measured mid canopy at 20 m height by a Licor 190S quantum sensor (unit: micromolePerMeterSquaredPerSecond / missing value: NA)
52. par_low_max: maximum photosynthetically active radiation measured lower canopy at 10 m height by a Licor 190S quantum sensor (unit: micromolePerMeterSquaredPerSecond / missing value: NA)
53. albedo_max: maximum Albedo as measured by NR01 at 30m (unit: wattPerMeterSquared / missing value: NA)
54. rs_down_max: maximum SWin (downwelling) solar radiation from upfacing pyranometer on NR01 (unit: wattPerMeterSquared / missing value: NA)
55. rs_up_max: maximum SWout (upwelling) solar radiation from downfacing pyranometer on NR01 (unit: wattPerMeterSquared / missing value: NA)
56. rl_down_max: maximum LWin (downwelling) Far infrared radiation from up facing pygeometer on NR01 (unit: wattPerMeterSquared / missing value: NA)
57. rl_up_max: maximum LWout (upwelling) Far infrared radiation from down facing pygeometer on NR01 (unit: wattPerMeterSquared / missing value: NA)
58. tair_mid_max: maximum air temperature with aspirated radiation shield measured mid canopy at 20m height by a Campbell Scientific CS215 sensor (unit: celsius / missing value: NA)
59. rh_mid_max: maximum relative humidity with aspirated radiation shield measured mid canopy at 20m height by a Campbell Scientific CS215 sensor (unit: dimensionless / missing value: NA)
60. tair_low_max: maximum air temperature with aspirated radiation shield measured lower canopy at 10m height by a Campbell Scientific CS215 sensor (unit: celsius / missing value: NA)
61. rh_low_max: maximum relative humidity with aspirated radiation shield measured lower canopy at 10m height by a Campbell Scientific CS215 sensor (unit: dimensionless / missing value: NA)
62. par_min: minimum photosynthetically active radiation measured above the canopy at 24 m height by a Licor 190S quantum sensor (unit: micromolePerMeterSquaredPerSecond / missing value: NA)
63. net_rad_min: minimum net radiation measured above the canopy at 30m (unit: wattPerMeterSquared / missing value: NA)
64. tair_ac_min: minimum air temperature with aspirated radiation shield measured above the canopy at 33m height by a Campbell Scientific CS215 sensor (unit: celsius / missing value: NA)
65. rh_min: minimum relative humidity with aspirated radiation shield measured above the canopy at 33m height by a Campbell Scientific CS215 sensor (unit: dimensionless / missing value: NA)
66. tair_ac_toc_min: minimum air temperature measured above the canopy at 24m by a shaded thermocouple (unit: celsius / missing value: NA)
67. tair_us_1m_min: minimum air temperature measured below the canopy at 1m (unit: celsius / missing value: NA)
68. tsoil1_min: minimum soil temperature 1 measured at 10 cm depth (unit: celsius / missing value: NA)
69. tsoil2_min: minimum soil temperature 2 measured at 10 cm depth (unit: celsius / missing value: NA)
70. tsoil3_min: minimum soil temperature 3 measured at 10 cm depth (unit: celsius / missing value: NA)
71. tsoil4_min: minimum soil temperature 4 measured at 10 cm depth (unit: celsius / missing value: NA)
72. tsoil5_min: minimum soil temperature 5 measured at 10 cm depth (unit: celsius / missing value: NA)
73. tsoil6_min: minimum soil temperature 6 measured at 10 cm depth (unit: celsius / missing value: NA)
74. par_ac_down_min: photosynthetically active radiation measured above the canopy at 30 m height by a Licor 190S quantum sensor (unit: micromolePerMeterSquaredPerSecond / missing value: NA)
75. par_mid_min: minimum photosynthetically active radiation measured mid canopy at 20 m height by a Licor 190S quantum sensor (unit: micromolePerMeterSquaredPerSecond / missing value: NA)
76. par_low_min: minimum photosynthetically active radiation measured lower canopy at 10 m height by a Licor 190S quantum sensor (unit: micromolePerMeterSquaredPerSecond / missing value: NA)
77. albedo_min: minimum Albedo as measured by NR01 at 30m (unit: wattPerMeterSquared / missing value: NA)
78. rs_down_min: minimum SWin (downwelling) solar radiation from upfacing pyranometer on NR01 (unit: wattPerMeterSquared / missing value: NA)
79. rs_up_min: minimum SWout (upwelling) solar radiation from downfacing pyranometer on NR01 (unit: wattPerMeterSquared / missing value: NA)
80. rl_down_min: minimum LWin (downwelling) Far infrared radiation from up facing pygeometer on NR01 (unit: wattPerMeterSquared / missing value: NA)
81. rl_up_min: minimum LWout (upwelling) Far infrared radiation from down facing pygeometer on NR01 (unit: wattPerMeterSquared / missing value: NA)
82. tair_mid_min: minimum air temperature with aspirated radiation shield measured mid canopy at 20m height by a Campbell Scientific CS215 sensor (unit: celsius / missing value: NA)
83. rh_mid_min: minimum relative humidity with aspirated radiation shield measured mid canopy at 20m height by a Campbell Scientific CS215 sensor (unit: dimensionless / missing value: NA)
84. tair_low_min: minimum air temperature with aspirated radiation shield measured lower canopy at 10m height by a Campbell Scientific CS215 sensor (unit: celsius / missing value: NA)
85. rh_low_min: minimum relative humidity with aspirated radiation shield measured lower canopy at 10m height by a Campbell Scientific CS215 sensor (unit: dimensionless / missing value: NA)

hf206-03: Hemlock understory

1. year: year
2. datetime: date and time (EST)
3. dec_date: decimal day, with hour of day converted to a fraction of a day (unit: nominalDay / missing value: NA)
4. doy: day of year (unit: nominalDay / missing value: NA)
5. hour: hour
6. dec_hour: decimal hour (unit: nominalHour / missing value: NA)
7. par1_ave: understory photosynthetically active radiation 1, measured by the HK2 datalogger (unit: micromolePerMeterSquaredPerSecond / missing value: NA)
8. par2_ave: understory photosynthetically active radiation 2, measured by the HK2 datalogger (unit: micromolePerMeterSquaredPerSecond / missing value: NA)
9. par3_ave: understory photosynthetically active radiation 3, measured by the HK2 datalogger (unit: micromolePerMeterSquaredPerSecond / missing value: NA)
10. tsoil1_ave: understory soil temperature 1, measured at 10cm depth by the HK2 datalogger (unit: celsius / missing value: NA)
11. tsoil2_ave: understory soil temperature 2, measured at 10cm depth by the HK2 datalogger (unit: celsius / missing value: NA)
12. tsoil3_ave: understory soil temperature 3, measured at 10cm depth by the HK2 datalogger (unit: celsius / missing value: NA)
13. tsoil4_ave: understory soil temperature 4, measured at 10cm depth by the HK2 datalogger (unit: celsius / missing value: NA)
14. tair1_us_1m_ave: understory air temperature 1, measured at 1m by the HK2 datalogger (unit: celsius / missing value: NA)
15. tair1_us_20cm_ave: understory air temperature 1, measured at 20cm by the HK2 datalogger (unit: celsius / missing value: NA)
16. tair2_us_1m_ave: understory air temperature 2, measured at 1m by the HK2 datalogger (unit: celsius / missing value: NA)
17. tair2_us_20cm_ave: understory air temperature 2, measured at 20cm by the HK2 datalogger (unit: celsius / missing value: NA)
18. swc1_ave: soil water content 1, measured by the HK2 datalogger (unit: dimensionless / missing value: NA)
19. swc2_ave: soil water content 2, measured by the HK2 datalogger (unit: dimensionless / missing value: NA)
20. par4_ave: understory photosynthetically active radiation 4, measured by the HK3 datalogger (unit: micromolePerMeterSquaredPerSecond / missing value: NA)
21. par5_ave: understory photosynthetically active radiation 5, measured by the HK3 datalogger (unit: micromolePerMeterSquaredPerSecond / missing value: NA)
22. par6_ave: understory photosynthetically active radiation 6, measured by the HK3 datalogger (unit: micromolePerMeterSquaredPerSecond / missing value: NA)
23. tsoil5_ave: understory soil temperature 5, measured at 10cm depth by the HK3 datalogger (unit: celsius / missing value: NA)
24. tsoil6_ave: understory soil temperature 6, measured at 10cm depth by the HK3 datalogger (unit: celsius / missing value: NA)
25. tsoil7_ave: understory soil temperature 7, measured at 10cm depth by the HK3 datalogger (unit: celsius / missing value: NA)
26. tsoil8_ave: understory soil temperature 8, measured at 10cm depth by the HK3 datalogger (unit: celsius / missing value: NA)
27. tair3_us_1m_ave: understory air temperature 3, measured at 1m by the HK3 datalogger (unit: celsius / missing value: NA)
28. tair3_us_20cm_ave: understory air temperature 3, measured at 20cm by the HK3 datalogger (unit: celsius / missing value: NA)
29. tair4_us_1m_ave: understory air temperature 4, measured at 1m by the HK3 datalogger (unit: celsius / missing value: NA)
30. tair4_us_20cm_ave: understory air temperature 4, measured at 20cm by the HK3 datalogger (unit: celsius / missing value: NA)
31. swc3_ave: soil water content 3, measured by the HK3 datalogger (unit: dimensionless / missing value: NA)
32. swc4_ave: soil water content 4, measured by the HK3 datalogger (unit: dimensionless / missing value: NA)
33. par1_max: maximum understory photosynthetically active radiation 1, measured by the HK2 datalogger (unit: micromolePerMeterSquaredPerSecond / missing value: NA)
34. par2_max: maximum understory photosynthetically active radiation 2, measured by the HK2 datalogger (unit: micromolePerMeterSquaredPerSecond / missing value: NA)
35. par3_max: maximum understory photosynthetically active radiation 3, measured by the HK2 datalogger (unit: micromolePerMeterSquaredPerSecond / missing value: NA)
36. tsoil1_max: maximum understory soil temperature 1, measured at 10cm depth by the HK2 datalogger (unit: celsius / missing value: NA)
37. tsoil2_max: maximum understory soil temperature 2, measured at 10cm depth by the HK2 datalogger (unit: celsius / missing value: NA)
38. tsoil3_max: maximum understory soil temperature 3, measured at 10cm depth by the HK2 datalogger (unit: celsius / missing value: NA)
39. tsoil4_max: maximum understory soil temperature 4, measured at 10cm depth by the HK2 datalogger (unit: celsius / missing value: NA)
40. tair1_us_1m_max: maximum understory air temperature 1, measured at 1m by the HK2 datalogger (unit: celsius / missing value: NA)
41. tair1_us_20cm_max: maximum understory air temperature 1, measured at 20cm by the HK2 datalogger (unit: celsius / missing value: NA)
42. tair2_us_1m_max: maximum understory air temperature 2, measured at 1m by the HK2 datalogger (unit: celsius / missing value: NA)
43. tair2_us_20cm_max: maximum understory air temperature 2, measured at 20cm by the HK2 datalogger (unit: celsius / missing value: NA)
44. swc1_max: maximum soil water content 1, measured by the HK2 datalogger (unit: dimensionless / missing value: NA)
45. swc2_max: maximum soil water content 2, measured by the HK2 datalogger (unit: dimensionless / missing value: NA)
46. par4_max: maximum understory photosynthetically active radiation 4, measured by the HK3 datalogger (unit: micromolePerMeterSquaredPerSecond / missing value: NA)
47. par5_max: maximum understory photosynthetically active radiation 5, measured by the HK3 datalogger (unit: micromolePerMeterSquaredPerSecond / missing value: NA)
48. par6_max: maximum understory photosynthetically active radiation 6, measured by the HK3 datalogger (unit: micromolePerMeterSquaredPerSecond / missing value: NA)
49. tsoil5_max: maximum understory soil temperature 5, measured at 10cm depth by the HK3 datalogger (unit: celsius / missing value: NA)
50. tsoil6_max: maximum understory soil temperature 6, measured at 10cm depth by the HK3 datalogger (unit: celsius / missing value: NA)
51. tsoil7_max: maximum understory soil temperature 7, measured at 10cm depth by the HK3 datalogger (unit: celsius / missing value: NA)
52. tsoil8_max: maximum understory soil temperature 8, measured at 10cm depth by the HK3 datalogger (unit: celsius / missing value: NA)
53. tair3_us_1m_max: maximum understory air temperature 3, measured at 1m by the HK3 datalogger (unit: celsius / missing value: NA)
54. tair3_us_20cm_max: maximum understory air temperature 3, measured at 20cm by the HK3 datalogger (unit: celsius / missing value: NA)
55. tair4_us_1m_max: maximum understory air temperature 4, measured at 1m by the HK3 datalogger (unit: celsius / missing value: NA)
56. tair4_us_20cm_max: maximum understory air temperature 4, measured at 20cm by the HK3 datalogger (unit: celsius / missing value: NA)
57. swc3_max: maximum soil water content 3, measured by the HK3 datalogger (unit: dimensionless / missing value: NA)
58. swc4_max: maximum soil water content 4, measured by the HK3 datalogger (unit: dimensionless / missing value: NA)
59. par1_min: minimum understory photosynthetically active radiation 1, measured by the HK2 datalogger (unit: micromolePerMeterSquaredPerSecond / missing value: NA)
60. par2_min: minimum understory photosynthetically active radiation 2, measured by the HK2 datalogger (unit: micromolePerMeterSquaredPerSecond / missing value: NA)
61. par3_min: minimum understory photosynthetically active radiation 3, measured by the HK2 datalogger (unit: micromolePerMeterSquaredPerSecond / missing value: NA)
62. tsoil1_min: minimum understory soil temperature 1, measured at 10cm depth by the HK2 datalogger (unit: celsius / missing value: NA)
63. tsoil2_min: minimum understory soil temperature 2, measured at 10cm depth by the HK2 datalogger (unit: celsius / missing value: NA)
64. tsoil3_min: minimum understory soil temperature 3, measured at 10cm depth by the HK2 datalogger (unit: celsius / missing value: NA)
65. tsoil4_min: minimum understory soil temperature 4, measured at 10cm depth by the HK2 datalogger (unit: celsius / missing value: NA)
66. tair1_us_1m_min: minimum understory air temperature 1, measured at 1m by the HK2 datalogger (unit: celsius / missing value: NA)
67. tair1_us_20cm_min: understory air temperature 1, measured at 20cm by the HK2 datalogger (unit: celsius / missing value: NA)
68. tair2_us_1m_min: understory air temperature 2, measured at 1m by the HK2 datalogger (unit: celsius / missing value: NA)
69. tair2_us_20cm_min: understory air temperature 2, measured at 20cm by the HK2 datalogger (unit: celsius / missing value: NA)
70. swc1_min: minimum soil water content 1, measured by the HK2 datalogger (unit: dimensionless / missing value: NA)
71. swc2_min: minimum soil water content 2, measured by the HK2 datalogger (unit: dimensionless / missing value: NA)
72. par4_min: minimum understory photosynthetically active radiation 4, measured by the HK3 datalogger (unit: micromolePerMeterSquaredPerSecond / missing value: NA)
73. par5_min: minimum understory photosynthetically active radiation 5, measured by the HK3 datalogger (unit: micromolePerMeterSquaredPerSecond / missing value: NA)
74. par6_min: minimum understory photosynthetically active radiation 6, measured by the HK3 datalogger (unit: micromolePerMeterSquaredPerSecond / missing value: NA)
75. tsoil5_min: minimum understory soil temperature 5, measured at 10cm depth by the HK3 datalogger (unit: celsius / missing value: NA)
76. tsoil6_min: minimum understory soil temperature 6, measured at 10cm depth by the HK3 datalogger (unit: celsius / missing value: NA)
77. tsoil7_min: minimum understory soil temperature 7, measured at 10cm depth by the HK3 datalogger (unit: celsius / missing value: NA)
78. tsoil8_min: minimum understory soil temperature 8, measured at 10cm depth by the HK3 datalogger (unit: celsius / missing value: NA)
79. tair3_us_1m_min: minimum understory air temperature 3, measured at 1m by the HK3 datalogger (unit: celsius / missing value: NA)
80. tair3_us_20cm_min: minimum understory air temperature 3, measured at 20cm by the HK3 datalogger (unit: celsius / missing value: NA)
81. tair4_us_1m_min: minimum understory air temperature 4, measured at 1m by the HK3 datalogger (unit: celsius / missing value: NA)
82. tair4_us_20cm_min: minimum understory air temperature 4, measured at 20cm by the HK3 datalogger (unit: celsius / missing value: NA)
83. swc3_min: minimum soil water content 3, measured by the HK3 datalogger (unit: dimensionless / missing value: NA)
84. swc4_min: minimum soil water content 4, measured by the HK3 datalogger (unit: dimensionless / missing value: NA)

hf206-04: LPH understory, 2005-2010

1. year: year
2. datetime: date and time (EST)
3. dec_date: decimal day, with hour of day converted to a fraction of a day (unit: nominalDay / missing value: NA)
4. doy: day of year (unit: nominalDay / missing value: NA)
5. dec_hour: decimal hour (unit: nominalHour / missing value: NA)
6. us_par1: understory photosynthetically active radiation 1, measured by the LPH225 datalogger (unit: micromolePerMeterSquaredPerSecond / missing value: NA)
7. us_par2: understory photosynthetically active radiation 2, measured by the LPH225 datalogger (unit: micromolePerMeterSquaredPerSecond / missing value: NA)
8. us_par3: understory photosynthetically active radiation 3, measured by the LPH225 datalogger (unit: micromolePerMeterSquaredPerSecond / missing value: NA)
9. us_par4: understory photosynthetically active radiation 1, measured by the LPH300 datalogger (unit: micromolePerMeterSquaredPerSecond / missing value: NA)
10. us_par5: understory photosynthetically active radiation 2, measured by the LPH300 datalogger (unit: micromolePerMeterSquaredPerSecond / missing value: NA)
11. us_par6: understory photosynthetically active radiation 3, measured by the LPH300 datalogger (unit: micromolePerMeterSquaredPerSecond / missing value: NA)
12. tsoil1: understory soil temperature 1, measured at 10cm depth by the LPH225 datalogger (unit: celsius / missing value: NA)
13. tsoil2: understory soil temperature 2, measured at 10cm depth by the LPH225 datalogger (unit: celsius / missing value: NA)
14. tsoil3: understory soil temperature 3, measured at 10cm depth by the LPH225 datalogger (unit: celsius / missing value: NA)
15. tsoil4: understory soil temperature 4, measured at 10cm depth by the LPH225 datalogger (unit: celsius / missing value: NA)
16. tsoil5: understory soil temperature 5, measured at 10cm depth by the LPH225 datalogger (unit: celsius / missing value: NA)
17. tsoil6: understory soil temperature 1, measured at 10cm depth by the LPH300 datalogger (unit: celsius / missing value: NA)
18. tsoil7: understory soil temperature 2, measured at 10cm depth by the LPH300 datalogger (unit: celsius / missing value: NA)
19. tsoil8: understory soil temperature 3, measured at 10cm depth by the LPH300 datalogger (unit: celsius / missing value: NA)
20. tsoil9: understory soil temperature 4, measured at 10cm depth by the LPH300 datalogger (unit: celsius / missing value: NA)
21. tlitter1: understory organic soil temperature 1, measured at 2cm depth by the LPH300 datalogger (unit: celsius / missing value: NA)
22. tlitter2: understory organic soil temperature 2, measured at 2cm depth by the LPH300 datalogger (unit: celsius / missing value: NA)
23. tlitter3: understory organic soil temperature 3, measured at 2cm depth by the LPH300 datalogger (unit: celsius / missing value: NA)
24. tlitter4: understory organic soil temperature 4, measured at 2cm depth by the LPH300 datalogger (unit: celsius / missing value: NA)
25. us_tair_south20cm: understory air temperature south, measured at 20cm by the LPH225 datalogger (unit: celsius / missing value: NA)
26. us_tair_north20cm: understory air temperature north, measured at 20cm by the LPH225 datalogger (unit: celsius / missing value: NA)
27. us_tair_south1m: understory air temperature south, measured at 1m by the LPH225 datalogger (unit: celsius / missing value: NA)
28. us_tair_north1m: understory air temperature north, measured at 1m by the LPH225 datalogger (unit: celsius / missing value: NA)
29. us_tair2_south20cm: understory air temperature south, measured at 20cm by the LPH300 datalogger (unit: celsius / missing value: NA)
30. us_tair2_north20cm: understory air temperature north, measured at 20cm by the LPH300 datalogger (unit: celsius / missing value: NA)
31. us_tair2_south1m: understory air temperature south, measured at 1m by the LPH300 datalogger (unit: celsius / missing value: NA)
32. us_tair2_north1m: understory air temperature north, measured at 1m by the LPH300 datalogger (unit: celsius / missing value: NA)
33. vwc1: soil water content 1, measured by the LPH225 datalogger (unit: dimensionless / missing value: NA)
34. vwc2: soil water content 2, measured by the LPH225 datalogger (unit: dimensionless / missing value: NA)
35. wvc3: soil water content 1, measured by the LPH300 datalogger (unit: dimensionless / missing value: NA)
36. wvc4: soil water content 2, measured by the LPH300 datalogger (unit: dimensionless / missing value: NA)

hf206-05: EMS understory

1. year: year
2. datetime: date and time (EST)
3. doy: day of year (unit: nominalDay / missing value: NA)
4. dec_hour: decimal hour (unit: nominalHour / missing value: NA)
5. dec_date: decimal day, with hour of day converted to a fraction of a day (unit: nominalDay / missing value: NA)
6. par_c3_ave: average understory photosynthetically active radiation at boimetry plot C3, measured by the EMS1 datalogger (unit: micromolePerMeterSquaredPerSecond / missing value: NA)
7. par_b2_ave: average understory photosynthetically active radiation at boimetry plot B2, measured by the EMS1 datalogger (unit: micromolePerMeterSquaredPerSecond / missing value: NA)
8. par_c2_ave: average understory photosynthetically active radiation at boimetry plot C2, measured by the EMS1 datalogger (unit: micromolePerMeterSquaredPerSecond / missing value: NA)
9. par_e3_ave: average understory photosynthetically active radiation at boimetry plot E3, measured by the EMS1 datalogger (unit: micromolePerMeterSquaredPerSecond / missing value: NA)
10. par_f3_ave: average understory photosynthetically active radiation at boimetry plot F3, measured by the EMS1 datalogger (unit: micromolePerMeterSquaredPerSecond / missing value: NA)
11. par_f2_ave: average understory photosynthetically active radiation at boimetry plot F2, measured by the EMS1 datalogger (unit: micromolePerMeterSquaredPerSecond / missing value: NA)
12. tsoil1_n_ave: average understory soil temperature N, measured at 10cm depth by the EMS1 datalogger (unit: celsius / missing value: NA)
13. tsoil1_s_ave: average understory soil temperature S, measured at 10cm depth by the EMS1 datalogger (unit: celsius / missing value: NA)
14. tsoil1_e_ave: average understory soil temperature E, measured at 10cm depth by the EMS1 datalogger (unit: celsius / missing value: NA)
15. tsoil1_w_ave: average understory soil temperature W, measured at 10cm depth by the EMS1 datalogger (unit: celsius / missing value: NA)
16. tsoil2_n_ave: average understory soil temperature N, measured at 10cm depth by the EMS2 datalogger (unit: celsius / missing value: NA)
17. tsoil2_s_ave: average understory soil temperature S, measured at 10cm depth by the EMS2 datalogger (unit: celsius / missing value: NA)
18. tsoil2_e_ave: average understory soil temperature E, measured at 10cm depth by the EMS2 datalogger (unit: celsius / missing value: NA)
19. tsoil2_w_ave: average understory soil temperature W, measured at 10cm depth by the EMS2 datalogger (unit: celsius / missing value: NA)
20. tair_us_e_1m_ave: average understory air temperature E, measured at 1m by the EMS1 datalogger (unit: celsius / missing value: NA)
21. tair_us_e_20cm_ave: average understory air temperature E, measured at 20cm by the EMS1 datalogger (unit: celsius / missing value: NA)
22. tair_us_w_1m_ave: average understory air temperature W, measured at 1m by the EMS1 datalogger (unit: celsius / missing value: NA)
23. tair_us_w_20cm_ave: average understory air temperature W, measured at 20cm by the EMS1 datalogger (unit: celsius / missing value: NA)
24. tair_us_n_1m_ave: average understory air temperature N, measured at 1m by the EMS2 datalogger (unit: celsius / missing value: NA)
25. tair_us_n_20cm_ave: average understory air temperature N, measured at 20cm by the EMS2 datalogger (unit: celsius / missing value: NA)
26. tair_us_s_1m_ave: average understory air temperature S, measured at 1m by the EMS2 datalogger (unit: celsius / missing value: NA)
27. tair_us_s_20cm_ave: average understory air temperature S, measured at 20cm by the EMS2 datalogger (unit: celsius / missing value: NA)
28. swc1_ave: average soil water content 1, measured by the EMS1 datalogger (unit: dimensionless / missing value: NA)
29. swc2_ave: average soil water content 2, measured by the EMS1 datalogger (unit: dimensionless / missing value: NA)
30. swc3_ave: average soil water content 3, measured by the EMS2 datalogger (unit: dimensionless / missing value: NA)
31. swc4_ave: average soil water content 2, measured by the EMS2 datalogger (unit: dimensionless / missing value: NA)
32. par_c3_max: maximum understory photosynthetically active radiation at boimetry plot C3, measured by the EMS1 datalogger (unit: micromolePerMeterSquaredPerSecond / missing value: NA)
33. par_b2_max: maximum understory photosynthetically active radiation at boimetry plot B2, measured by the EMS1 datalogger (unit: micromolePerMeterSquaredPerSecond / missing value: NA)
34. par_c2_max: maximum understory photosynthetically active radiation at boimetry plot C2, measured by the EMS1 datalogger (unit: dimensionless / missing value: NA)
35. par_e3_max: maximum understory photosynthetically active radiation at boimetry plot E3, measured by the EMS2 datalogger (unit: dimensionless / missing value: NA)
36. par_f3_max: maximum understory photosynthetically active radiation at boimetry plot F3, measured by the EMS2 datalogger (unit: dimensionless / missing value: NA)
37. par_f2_max: maximum understory photosynthetically active radiation at boimetry plot F2, measured by the EMS2 datalogger (unit: dimensionless / missing value: NA)
38. tsoil1_n_max: maximum understory soil temperature N, measured at 10cm depth by the EMS1 datalogger (unit: celsius / missing value: NA)
39. tsoil1_s_max: maximum understory soil temperature S, measured at 10cm depth by the EMS1 datalogger (unit: celsius / missing value: NA)
40. tsoil1_e_max: maximum understory soil temperature E, measured at 10cm depth by the EMS1 datalogger (unit: celsius / missing value: NA)
41. tsoil1_w_max: maximum understory soil temperature W, measured at 10cm depth by the EMS1 datalogger (unit: celsius / missing value: NA)
42. tsoil2_n_max: maximum understory soil temperature N, measured at 10cm depth by the EMS2 datalogger (unit: celsius / missing value: NA)
43. tsoil2_s_max: maximum understory soil temperature S, measured at 10cm depth by the EMS2 datalogger (unit: celsius / missing value: NA)
44. tsoil2_e_max: maximum understory soil temperature E, measured at 10cm depth by the EMS2 datalogger (unit: celsius / missing value: NA)
45. tsoil2_w_max: maximum understory soil temperature W, measured at 10cm depth by the EMS2 datalogger (unit: celsius / missing value: NA)
46. tair_us_e_1m_max: maximum understory air temperature E, measured at 1m by the EMS1 datalogger (unit: celsius / missing value: NA)
47. tair_us_e_20cm_max: maximum understory air temperature E, measured at 20cm by the EMS1 datalogger (unit: celsius / missing value: NA)
48. tair_us_w_1m_max: maximum understory air temperature W, measured at 1m by the EMS1 datalogger (unit: celsius / missing value: NA)
49. tair_us_w_20cm_max: maximum understory air temperature W, measured at 20cm by the EMS1 datalogger (unit: celsius / missing value: NA)
50. tair_us_n_1m_max: maximum understory air temperature N, measured at 1m by the EMS2 datalogger (unit: celsius / missing value: NA)
51. tair_us_n_20cm_max: maximum understory air temperature N, measured at 20cm by the EMS2 datalogger (unit: celsius / missing value: NA)
52. tair_us_s_1m_max: maximum understory air temperature S, measured at 1m by the EMS2 datalogger (unit: celsius / missing value: NA)
53. tair_us_s_20cm_max: maximum understory air temperature S, measured at 20cm by the EMS2 datalogger (unit: celsius / missing value: NA)
54. swc1_max: maximum soil water content 1, measured by the EMS1 datalogger (unit: dimensionless / missing value: NA)
55. swc2_max: maximum soil water content 2, measured by the EMS1 datalogger (unit: dimensionless / missing value: NA)
56. swc3_max: maximum soil water content 3, measured by the EMS2 datalogger (unit: dimensionless / missing value: NA)
57. swc4_max: maximum soil water content 4, measured by the EMS2 datalogger (unit: dimensionless / missing value: NA)
58. par_c3_min: minimum understory photosynthetically active radiation at boimetry plot C3, measured by the EMS1 datalogger (unit: micromolePerMeterSquaredPerSecond / missing value: NA)
59. par_b2_min: minimum understory photosynthetically active radiation at boimetry plot B2, measured by the EMS1 datalogger (unit: micromolePerMeterSquaredPerSecond / missing value: NA)
60. par_c2_min: minimum understory photosynthetically active radiation at boimetry plot C2, measured by the EMS1 datalogger (unit: micromolePerMeterSquaredPerSecond / missing value: NA)
61. par_e3_min: minimum understory photosynthetically active radiation at boimetry plot E3, measured by the EMS2 datalogger (unit: micromolePerMeterSquaredPerSecond / missing value: NA)
62. par_f3_min: minimum understory photosynthetically active radiation at boimetry plot F3, measured by the EMS2 datalogger (unit: micromolePerMeterSquaredPerSecond / missing value: NA)
63. par_f2_min: minimum understory photosynthetically active radiation at boimetry plot F2, measured by the EMS2 datalogger (unit: micromolePerMeterSquaredPerSecond / missing value: NA)
64. tsoil1_n_min: minimum understory soil temperature N, measured at 10cm depth by the EMS1 datalogger (unit: celsius / missing value: NA)
65. tsoil1_s_min: minimum understory soil temperature S, measured at 10cm depth by the EMS1 datalogger (unit: celsius / missing value: NA)
66. tsoil1_e_min: minimum understory soil temperature E, measured at 10cm depth by the EMS1 datalogger (unit: celsius / missing value: NA)
67. tsoil1_w_min: minimum understory soil temperature W, measured at 10cm depth by the EMS1 datalogger (unit: celsius / missing value: NA)
68. tsoil2_n_min: minimum understory soil temperature N, measured at 10cm depth by the EMS2 datalogger (unit: celsius / missing value: NA)
69. tsoil2_s_min: minimum understory soil temperature S, measured at 10cm depth by the EMS2 datalogger (unit: celsius / missing value: NA)
70. tsoil2_e_min: minimum understory soil temperature E, measured at 10cm depth by the EMS2 datalogger (unit: celsius / missing value: NA)
71. tsoil2_w_min: minimum understory soil temperature W, measured at 10cm depth by the EMS2 datalogger (unit: celsius / missing value: NA)
72. tair_us_e_1m_min: minimum understory air temperature E, measured at 1m by the EMS1 datalogger (unit: celsius / missing value: NA)
73. tair_us_e_20cm_min: minimum understory air temperature E, measured at 20cm by the EMS1 datalogger (unit: celsius / missing value: NA)
74. tair_us_w_1m_min: minimum understory air temperature W, measured at 1m by the EMS1 datalogger (unit: celsius / missing value: NA)
75. tair_us_w_20cm_min: minimum understory air temperature W, measured at 20cm by the EMS1 datalogger (unit: celsius / missing value: NA)
76. tair_us_n_1m_min: minimum understory air temperature N, measured at 1m by the EMS2 datalogger (unit: celsius / missing value: NA)
77. tair_us_n_20cm_min: minimum understory air temperature N, measured at 20cm by the EMS2 datalogger (unit: celsius / missing value: NA)
78. tair_us_s_1m_min: minimum understory air temperature S, measured at 1m by the EMS2 datalogger (unit: celsius / missing value: NA)
79. tair_us_s_20cm_min: minimum understory air temperature S, measured at 20cm by the EMS2 datalogger (unit: celsius / missing value: NA)
80. swc1_min: minimum soil water content 1, measured by the EMS1 datalogger (unit: dimensionless / missing value: NA)
81. swc2_min: minimum soil water content 2, measured by the EMS1 datalogger (unit: dimensionless / missing value: NA)
82. swc3_min: minimum soil water content 3, measured by the EMS2 datalogger (unit: dimensionless / missing value: NA)
83. swc4_min: minimum soil water content 4, measured by the EMS2 datalogger (unit: dimensionless / missing value: NA)