Effects of Hemlock Decline on Groundwater and Streamflow in Headwater Streams
- HF-ID: HF2019-14
- Category: Research Files
- Creator: Thompson, J.R., Boutt, D.
- Associated Person: Boose, E.R., Colburn, E.A., Orwig, D.A., Hatch, C.B., Armstrong, D.A., Briggs, M., Shanley, J.
- Date: 2019 to 2022
- Location: New England
- Media: Paper
- Contents:
- Proposal National Competitive Grant,
- USGS Number 019MA04G.
- August 12, 2019 Proposal was declined. 1 File Folder. 8.5 inches x 11 inches.
- Keywords: hydrology, landscape, streams
- Abstract:
- Research plan combines multiple methods of hydrologic monitoring in streams along a gradient of hemlock dominance and HWA impact, and it leverages long-term data from the HF LTER and from other, ongoing hydrologic studies, to obtain additional measures that can help distinguish flowpaths and sources of groundwater discharges. Approaches and timescales for thermal measurements include longitudinal winter surveys with infrared cameras to identify stream groundwater discharge points, fiber-optic distributed temperature sensing, vertical temperature profiling, and tracking lag time and attenuation of thermal signals of air temperatures in surface and groundwater over time. These data will integrated with water chemistry including specific conductance, silica, nitrate, radon, and stable isotope ratios of the water molecule; plus standard hydrologic analyses of discharge and water sources via salt dilution and hydrograph separation.....
- Archives Location: Middle Room, stack 16, drawer 4
- Access: Active