Lab news

Summer kick-off at Hubbard Brook

We’ve had a busy couple of weeks at Hubbard Brook.  Last week was the beginning of the REU program.  We have two excellent students, Nathaniel Rasnake and Delaney Peterson, from Virginia Tech who are both working on our lateral weathering project.  This week was the LTER site mid-term review of the Hubbard Brook Ecosystem Study.  …

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Here is a list of our AGU 2018 presentations

Transit Time Distributions on a Boreal Catchment Using a 14 Year Data Time Series, H13J-1867 Monday, 10 December 2018, 13:40 – 18:00 Decoupled Water and Nitrate Transport Downslope and across the Terrestrial-Aquatic Interface, B24A-02  Tuesday, 11 December 2018, 16:15 – 16:30 Quantifying Mineral Weathering Across Lateral Gradients Using a Whole-Regolith Approach, H21K-1797 Tuesday, 11 December 2018, 08:00 …

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Congrats Carrie!

Carrie Jensen successfully defended her dissertation on temporary streams. We’re proud of her and wish her well as she moves on to new things.  Special thanks to her committee for their help and support: Andy Dolloff, Daniel McLaughlin, Durelle Scott, and Yang Shao.

New Hubbard Brook hydro and hydropedology papers from the group

Our graduate students and collaborators on Hubbard Brook projects have several new papers now available online. Bourgault, R. R., Ross, D. S., Bailey, S. W., McGuire, K. J., Gannon, J. P., 2017. Redistribution of soil metals and organic carbon via lateral flowpaths at the catchment scale in a glaciated upland setting, Geoderma, 307:238–252, doi: 10.1016/j.geoderma.2017.05.039. …

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Carrie’s manuscript on temporary stream dynamics in the Appalachians

Carrie Jensen’s first paper was accepted in Hydrological Processes this week.  Her work is about characterizing the spatial and temporal dynamics of headwater stream wetting and drying.  This manuscript documents patterns of stream network expansion, contraction, and disconnection in watersheds from New England, Appalachian Plateau, Valley and Ridge, and Blue Ridge physiographic regions.  Her research …

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Getting ready for the Gordon Conference

We’re in the final throws of planning for the Gordon Research Conference on Catchment Science.  The last day to apply is in one week (May 28).  We have a great set of speakers, discussion leaders, and participants. This meeting promises to be stimulating and one that shouldn’t be missed!  The schedule is posted here: https://www.grc.org/programs.aspx?id=12331. The Gordon Research …

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Welcome David!

A new student, David Lee, joined our lab this week.  David completed his B.S. at the University of Florida in environmental engineering in 2015. David was most recently working for the US Forest Service as a forestry technician/wilderness ranger and was stationed on the Eldorado National Forest in Pollock Pines, CA. David will be working on a project …

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Carrie awarded VWRRC grant and coauthored GRL paper on strontium isotope dendritic network models

Carrie Jensen was awarded a student seed grant through the Virginia Water Resources Research Center for her dissertation work on storm dynamics of expansion and contraction of temporary headwater streams.  Andy Dolloff, with the US Forest Service Southern Research Station and the Department of Fish and Wildlife Conservation at Virginia Tech, is her Co-PI on the grant. …

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New paper on streamflow response to forest management and increasing precipitation extremes

Dr. Charley Kelly, a former lab member and now with the Division of Forestry and Natural Resources, West Virginia University, had a paper accepted in Geophysical Research Letters this week.  The study re-examines several paired watershed studies from the Coweeta Hydrologic Lab, but focuses on high flows, low flows, and interactions with precipitation patterns. Abstract: Increases in extreme …

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Carrie Jensen awarded CUAHSI Pathfinder Fellowship

Congratulations to Carrie on being selected for a CUAHSI 2015 Pathfinder Fellowship.  Carrie’s proposal titled, “Stream network expansion and contraction dynamics in headwater catchments throughout the Appalachian Highlands,” will be supported by CUAHSI (Consortium of Universities for the Advancement of Hydrologic Science, Inc.), which will provide her with an opportunity to enhance her dissertation project to include the Fernow Experimental Forest …

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Winter is Coming

I have been going to Coweeta every one or two weeks for the past two months to monitor sprinkling events on the soil model. Although I am measuring only one thing, water, being precise is actually very difficult. There are 5 high-resolution tipping buckets on the hillslope to measure samples of input and one large …

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New paper linking water age and solute dynamics at Hubbard Brook

Paolo Benettin’s paper was just accepted, which was the result of his study abroad visit here in the lab during the fall 2013 and spring 2014.  The manuscript explores water age-dependent transport in estimating weathering-derived solute export.   The model predicts water travel time dynamics from water stable isotope data and represents geochemical dissolution at the catchment-scale as a simple first-order kinetic …

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New paper showing alternative source of stream dissolved organic carbon in a headwater catchment

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 …

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Contribution to new textbook on the critical zone

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 …

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