uid=HFR,o=lter,dc=ecoinformatics,dc=org all public read doi:10.6073/pasta/be69b1f46b57354a25d85a437c0679c8 Robert Hellstrom 2023 English

Sub-forest canopy meteorological forcing and snowpack properties can profoundly influence the winter ecology. 3/4 inch graduated PVC snow stakes and web cams were installed at three Harvard Forest (HF) sites including: mixed-hardwood at the Little Prospect Hill (LPH) Eddy Flux Tower, near the Hemlock walk-up tower, and at the open area behind Shaler Hall. Web cameras connected to a laptop at the three sites provided daily images of snowpack surface depth. Snow density profiles were recorded during weekly to monthly site visits from December 2008 to April 2014. Gaps in the datasets were primarily caused by laptop malfunctions and lack of site visits necessary to maintain equipment and to obtain density measurements of the snowpack. There were no site visits to record snowpack properties during the 2011-2012 snow season, a year of unusually low snowfall. These datasets would prove useful for research related to snow ecology and hydrology projects at Harvard Forest.

climate hydrology precipitation snow snow water equivalence water balance LTER controlled vocabulary disturbance LTER core area Harvard Forest HFR LTER USA HFR default

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.

Creative Commons Zero v1.0 Universal https://spdx.org/licenses/CC0-1.0.html CC0-1.0 https://harvardforest.fas.harvard.edu/exist/apps/datasets/showData.html?id=hf237 Prospect Hill Tract (Harvard Forest). Coordinates based on WGS84 datum. -72.189 -72.178 +42.539 +42.532 330 380 meter 2008 2014 complete Information Manager Harvard Forest

324 North Main Street Petersham MA 01366 USA

(978) 724-3302 hf-im@lists.fas.harvard.edu Harvard Forest

324 North Main Street Petersham MA 01366 USA

(978) 724-3302 (978) 724-3595 https://harvardforest.fas.harvard.edu

Weekly to biweekly fieldwork during the snow seasons included measurement of snow density profiles at 7 cm intervals and downloading daily web cam images. Snow density was from a 7 cm diameter 180 cm^3 coring tube pushed vertically into the snow pit wall from top to bottom. Two dos-csv databases contain snow depth and density profile data.

Harvard Forest

324 North Main Street Petersham MA 01366 USA

(978) 724-3302 (978) 724-3595 https://harvardforest.fas.harvard.edu https://ror.org/059cpzx98 pointOfContact 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. National Science Foundation LTER grants: DEB-8811764, DEB-9411975, DEB-0080592, DEB-0620443, DEB-1237491, DEB-1832210. hf237-01-snow-depth.csv snow depth hf237-01-snow-depth.csv 40201 e3f575f3be32281667eaea746cfba304 1 \r\n column , https://harvardforest.fas.harvard.edu/data/p23/hf237/hf237-01-snow-depth.csv year year YYYY 1 year NA missing value doy day of year nominalDay 1 natural NA missing value date date YYYY-MM-DD 1 day NA missing value shaler.depth snow depth estimated from snow stake centimeter 1 real NA missing value shaler.density linear interpolation to fill daily values kilogramPerCubicMeter 1 real NA missing value shaler.swe snow water equivalent centimeter 1 real NA missing value lph.depth snow depth estimated from snow stake centimeter 1 real NA missing value lph.density linear interpolation to fill daily values kilogramPerCubicMeter 1 real NA missing value lph.swe snow water equivalent centimeter 1 real NA missing value hemlock.depth snow depth estimated from snow stake centimeter 1 real NA missing value hemlock.density linear interpolation to fill daily values kilogramPerCubicMeter 1 real NA missing value hemlock.swe snow water equivalent centimeter 1 real NA missing value 821 hf237-02-snow-density.csv snow density hf237-02-snow-density.csv 4223 b5303da76289aa56da4936c71d4db97a 1 \r\n column , https://harvardforest.fas.harvard.edu/data/p23/hf237/hf237-02-snow-density.csv date date YYYY-MM-DD 1 day NA missing value shaler.07 density of vertical snow profile kilogramPerCubicMeter 1 real NA missing value shaler.14 density of vertical snow profile kilogramPerCubicMeter 1 real NA missing value shaler.21 density of vertical snow profile kilogramPerCubicMeter 1 real NA missing value shaler.28 density of vertical snow profile kilogramPerCubicMeter 1 real NA missing value shaler.35 density of vertical snow profile kilogramPerCubicMeter 1 real NA missing value shaler.42 density of vertical snow profile kilogramPerCubicMeter 1 real NA missing value shaler.49 density of vertical snow profile kilogramPerCubicMeter 1 real NA missing value shaler.56 density of vertical snow profile kilogramPerCubicMeter 1 real NA missing value shaler.63 density of vertical snow profile kilogramPerCubicMeter 1 real NA missing value shaler.70 density of vertical snow profile kilogramPerCubicMeter 1 real NA missing value lph.07 density of vertical snow profile kilogramPerCubicMeter 1 real NA missing value lph.14 density of vertical snow profile kilogramPerCubicMeter 1 real NA missing value lph.21 density of vertical snow profile kilogramPerCubicMeter 1 real NA missing value lph.28 density of vertical snow profile kilogramPerCubicMeter 1 real NA missing value lph.35 density of vertical snow profile kilogramPerCubicMeter 1 real NA missing value lph.42 density of vertical snow profile kilogramPerCubicMeter 1 real NA missing value lph.49 density of vertical snow profile kilogramPerCubicMeter 1 real NA missing value lph.56 density of vertical snow profile kilogramPerCubicMeter 1 real NA missing value lph.63 density of vertical snow profile kilogramPerCubicMeter 1 real NA missing value lph.70 density of vertical snow profile kilogramPerCubicMeter 1 real NA missing value hemlock.07 density of vertical snow profile kilogramPerCubicMeter 1 real NA missing value hemlock.14 density of vertical snow profile kilogramPerCubicMeter 1 real NA missing value hemlock.21 density of vertical snow profile kilogramPerCubicMeter 1 real NA missing value hemlock.28 density of vertical snow profile kilogramPerCubicMeter 1 real NA missing value hemlock.35 density of vertical snow profile kilogramPerCubicMeter 1 real NA missing value hemlock.42 density of vertical snow profile kilogramPerCubicMeter 1 real NA missing value hemlock.49 density of vertical snow profile kilogramPerCubicMeter 1 real NA missing value hemlock.56 density of vertical snow profile kilogramPerCubicMeter 1 real NA missing value hemlock.63 density of vertical snow profile kilogramPerCubicMeter 1 real NA missing value hemlock.70 density of vertical snow profile kilogramPerCubicMeter 1 real NA missing value 35 atmosphere watershed long-term measurement https://harvardforest.fas.harvard.edu/exist/apps/datasets/showData.html?id=hf155