Kevin, Brian, and I installed a reverse osmosis filtration system, an irrigation line, an electrical line, and several data instruments/loggers. This included pounding a 7-foot copper grounding rod into the ground. The filtration system is used to change the chemistry of local tap water to resemble that of rainfall for our experiment. Sunny weather, with …
Filtration, Irrigation, and Preliminary Instrumentation Read More »
Gillin, C.P., Bailey, S.W., McGuire, K.J., Prisley, S.P., 2015. Evaluation of lidar-derived DEMs through terrain analysis and field comparison, Photogrammetric Engineering & Remote Sensing, 81(5): 387-396, doi: 10.14358/PERS.81.5.387. Abstract Topographic analysis of watershed-scale soil and hydrological processes using digital elevation models (DEMs) is commonplace, but most studies have used DEMs of 10 m resolution or coarser. …
New paper on lidar DEM evaluation by Cody Gillin Read More »
Construction on the soil model at Coweeta Hydrologic Laboratory has begun! We will be using the model for a water and nutrient reaction and transport experiment to answer questions, such as: What is the dominant process (e.g., biogeochemical or hydrologic) for controlling export of nutrients from a hillslope? Under what conditions can we expect these controls …
Kris Brown had another paper published. The study evaluated the model Water Erosion Prediction Project (WEPP) in predicting event-based sediment yield and runoff for a series of rainfall experiments on six stream-crossing sections of forest roads with different intensities of best management practices. For more information, please check out the paper. Brown, K.R., McGuire, K.J., Hession, W.C., and Aust, …
New paper published on erosion modeling on forest roads Read More »
Brian McGlynn from Duke University visited the lab last week. Brian gave a great seminar that was co-hosted by ICTAS and the Water Center. It was well attended and generated great discussion. We all thank Brian for coming to visit us at Tech.
Brian McGlynn from Duke University visited the lab last week. Brian gave a great seminar that was co-hosted by ICTAS and the Water Center. It was well attended and generated great discussion. We all thank Brian for coming to visit us at Tech.
Water quality, soils and fluvial geomorphology of a headwater stream network Seeking 4 undergraduate student researchers for National Science Foundation funded REU program at the Hubbard Brook LTER site in New Hampshire. Project description: Where do forests end and streams begin? This seemingly simple question turns out to defy an easy answer. Headwater streams, such …
Looking for undergraduate student researchers: 2015 Hubbard Brook REU program Read More »
McGuire is co-convening a session with Josie Geris, Daniele Penna, and Julian Klaus called “New Developments in Tracer Applications in Catchment Hydrology.” If you are attending the meeting next week, please come to our session. The program is available below: Papers – Tuesday, Moscone West 3022 https://agu.confex.com/agu/fm14/meetingapp.cgi#Session/4908
Abstract: We examine how tracer studies have enhanced our understanding of flow paths, residence times and sources of stream flow in northern catchments. We define northern catchments as non-glacial sites in the temperate conifer/boreal/permafrost zone, focussing our review mainly on sites in North America and Europe. Improved empirical and theoretical understanding of hydrological functioning has …
New review paper on tracers in northern catchments Read More »
Abstract: We examine how tracer studies have enhanced our understanding of flow paths, residence times and sources of stream flow in northern catchments. We define northern catchments as non-glacial sites in the temperate conifer/boreal/permafrost zone, focussing our review mainly on sites in North America and Europe. Improved empirical and theoretical understanding of hydrological functioning has …
New review paper on tracers in northern catchments Read More »
A paper from Cody Gillin’s master’s thesis was accepted last week. The manuscript titled “Mapping of hydropedologic spatial patterns in a steep headwater catchment” will be published in a special issue on hydropedology in the Soil Science Society of America Journal. This paper appears in the special issue with another paper on the same project, …
Paper published on mapping of hydropedologic spatial patterns Read More »
Here are the AGU presentation titles from the group this year: Benettin, P., Kirchner, J., McGuire, K., Rinaldo, A., Botter, G., 2014. Linking tracers and travel time distributions: the emergence of age mixing patterns, Abstract H21L-01, Fall Meeting, AGU, Dec. 15-19, San Francisco, CA (Invited) Gannon, J., McGuire, K., Bailey, S., Shanley, J., 2014. Simply active, …
In a paper published in the Proceedings of the National Academy of Sciences, McGuire working with a team from the Hubbard Brook Ecosystem Study found clear evidence of nitrogen loss through denitrification in isolated shallow groundwater patches in a small watershed. The findings were somewhat of a surprise because denitrification has been so difficult to …
New paper about how forests lose nitrogen through shallow groundwater flowpaths Read More »
A new Ph.D. student, Ray Lee, joined our lab this week. Ray recently completed his M.S. at San Diego State University in geography and studied environmental and resource economics and philosophy during his undergraduate program at UC-Davis. Ray will be working on a project based at the Coweeta Hydrologic Lab in North Carolina. Welcome to …
JP Gannon had a paper accepted this week in Water Resources Research titled “Organizing groundwater regimes and response thresholds by soils: A framework for understanding runoff generation in a headwater catchment.” Here’s the abstract: A network of shallow groundwater wells in a headwater catchment at the Hubbard Brook Experimental Forest in New Hampshire, USA was …
New paper by Gannon on organizing groundwater regimes and response thresholds by soils Read More »