JP Gannon just had another paper accepted in Water Resources Research this week. The study suggests that dissolved organic carbon (DOC) in headwater streams may be generated from shallow to bedrock regions in the catchment, which mostly occur near the catchment divides and channel heads. The study also suggests that hydropedological patterns are critical to understanding DOC …
A new textbook called Principles and Dynamics of the Critical Zone was just published. I co-authored a chapter of the book on Ecohydrology in the Critical Zone with Georgianne Moore, Peter Troch and Greg Barron-Gafford. Here is the publisher’s description of the book: Principles and Dynamics of the Critical Zone is an invaluable resource for undergraduate and …
Contribution to new textbook on the critical zone Read More »
Kevin, Brian, and I went to Coweeta to improve the irrigation system. They installed a pressure pump to the water line, then we placed tipping bucket rain gauges at randomized locations, and then Brian turned on the water. Water pressure was high enough! We tuned each sprinkler head so that water reached just to the …
It’s that time of year again…the Hubbard Brook Cooperator’s Meeting! This year we celebrated the 60th anniversary of the Hubbard Brook Experimental Forest. We had a record attendance at the meeting, and as usual, it was full of great talks and good conversations with colleagues. Four REU students are working on hydropedology and stream network project …
Two new papers are available in Water Resources Research on water travel time estimation in catchments. Both represent collaborations with colleagues to advance techniques in understanding the transient nature of travel time distributions. We’re getting closer and closer to answering the question: how old is that water in the stream? Rinaldo, A., Benettin, P., Harman, …
Two new papers on water travel times in catchments Read More »
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.
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, …