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Ecohydrology Laboratory

Lab News

The Ecohydrology Lab welcomes new graduate student!

Katarena Matos is joining the lab as a new PhD student in Fall 2021.  Katarena will be working with the new Critical Zone Cluster. We are excited about the wealth of experitse in hillslope hydrology that Katarena brings to the group.

Holly Barnard recognized for Excellence in Leadership and Service and Efforts to Increase Diversity and Inclusion

February 2021: New Publications

Andrew Birch is rocking the hydrology journals with two new publications that go together like chocolate and peanut butter:

"Precipitation Characteristics and Land Cover Control Wet Season Runoff Source and Rainfall Partitioning in Three Humid Tropical Catchments in Central Panama" is published in Water Reosurces Research: (Birch and Barnard co-authors)

"The influence of land cover and storm magnitude on hydrologic flowpath activation and runoff generation in steep tropical catchments of central Panama" is accepted in Journal of Hydrology (Birch, Bush, and Barnard co-authors).

Congratulations Dr. Andrew Birch!

Andrew begins his new career with the National Park Service as one of the water quality leads! Amazing job for an amazing guy.

November 2020: New Publication

Isaac Bukoski's manuscript entitled "Summer Runoff Generation in Foothill Catchments of the Colorado Front Range" is accepted in Journal of Hydrology: (Bukoski and Barnard co-authors). This is Isaac's first first-authored paper.  Congratulations Isaac!

September 2020: New Publications

Sidney Bush's manuscript entitled "Assessing plot-scale impacts of land-use on overland flow generation in central Panama" is accepted in Hydrological Processes (Bush and Barnard co-authors). This is Sidney's first first-authored paper.  Congratulations Sidney!

Lindsay Hale's manuscript entitled "Increasing plant water stress and decreasing summer streamflow in response to a warmer and wetter climate in seasonally snow covered forests" is accepted for publication in Ecohydrology (Barnard and Adams co-authors).

Holly Barnard leads new NSF-funded Critical Zone Cluster on the role of subsurface water storage in driving Earth surface processes.

Read the story here.

The lab welcomes Ethan Burns, new MA student in Geography.


Andrew successsfully defended his PhD on May 8th, 2020 via Zoom. 



May 2020: New Publications:

Kurt Solander's manuscript entitled "The pantropical response of soil moisture to El Nino" is accepted and and available in Hydrology and Earth System Sciences (HESS) (Barnard co-author).

Ryan Harmon's manuscript entitled "Water Table Depth and Bedrock Permeability Control Magnitude and Timing of Transpiration‐Induced Diel Fluctuations in Groundwater" is accepted and available in Water Resources Research (Barnard co-author).

April 2020: New Publication:

Ashley Coble's manuscript entitled "Long-term hydrological response to forest harvest during seasonal low flow: Potential implications for current forest practices" is accepted and available in Science of the Total Environment (Barnard co-author).

January 2020:

Holly and Hallie win Best Acting by an Adult award from Earth Explorers for the middle school student filmed short titled "Treeless"

Congratulations to Isaac Bukoski as he begins his new Geochemist position with Knight Piésold consulting in Denver.

Congratulations to Hallie Adams and welcome back!!

Hallie Adams was awarded a NSF Graduate Research Fellowship and has returned to the lab to pursue a PhD after earning her Masters in 2014. Read Hallie's story here.


Holly returns from her term as Program Officer for the Hydrologic Sciences Program at the National Science Foundation.

Read about her experience in the AGU Hydrology Section Newsletter here.


June 2019: New Publication:

Emily Voytek's manuscript entitled "Transpiration‐and precipitation‐induced subsurface water flow observed using the self‐potential method" is accpeted and available in Hydrological Processes.


Congratulations Isaac Bukoski

Isaac successfully defended his MA thesis titled: Hydrologic flowpaths in foothill catchments of the Colorado Front Range on May 17, 2019


December 2018: New Publication:

David Barnard's manuscript "Reevaluating growing season length controls on net ecosystem production in evergreen conifer forests" is accepted and available in Nature's Scientific Reports (Barnard co-author).

May 2017: New Publication:

David Barnard's manuscript "Topoclimate effects on growing season length and montane conifer growth in complex terrain" is accepted and available in Environmental Research Letters (Barnard co-author).


March 2017: New Publication:

Tyson Swetnam's manuscript, "Topographically-driven differences in energy and water constrain climatic control on forest carbon sequestration," is accepted in Ecosphere (Barnard co-author).


February 2017: Stephanie Jarvis has been accepted to the University of Utah Isocamp.


January 2017: Collaborator, Dr. Kamini Singha (Colorado School of Mines), is the 2017 NGWA Darcy Lecturer!  Kamini will be highlighting some of our transpiration-groundwater interaction results at select locations.


November 2016: The Ecohydrology Lab congratulates Daphne Szutu on her new position at the UC Berkeley Biometeorology Lab! We miss you.


September 2016, New Publication:

Scott Allen's manuscript, "The role of stable isotopes in understanding rainfall interception processes: a review," has been accepted for publication in WIREs Water (Barnard co-author).


June 2016, New Publication:

Maggie Burns' manuscript, "Dissolved organic matter transport reflects hillslope to stream connectivity during snowmelt in a montane catchment," has been accepted for publication in Water Resources Research (Barnard and Burns co-author).


March 31 - April 1, 2016: Holly Barnard and Daphne Szutu presented talks at the 11th Annual CU Hydrologic Sciences Symposium.

Holly presented on "Examining diel patterns of soil and xylem moisture using electrical resistivity imaging," and Daphne presented on "Linking sap flow and stable isotope techniques to understand transpiration dynamics in a semiarid shrubland."

March, 2016: Sidney Bush received an Honorable Mention for her application to the NSF Graduate Research Fellowship Program. Congratulations, Sidney!

The Ecohydrology Lab welcomes new graduate student!

Andrew Birch will be joining the Geography Department this summer as a Ph.D student. His research will focus on how land use influences water residence time and subsurface flowpaths in a Panama Canal watershed.


February 2016, New Publication:

Rachel Mares' manuscript, "Examining diel patterns of soil and xylem moisture using electrical resistivity imaging," has been accepted for publication in the Journal of Hydrology (Barnard co-author).


December 15, 2015: Holly Barnard, Brian Ebel, and Wendy Robertson Co-Convened the H034: Ecohydrology of Disturbed Environments session at the American Geophysical Union Fall Meeting.

November 7, 2015: Holly Barnard gave an invited talk at the University of Idaho's Department of Forest, Rangeland, and Fire Sciences and visited with Dr. Tara Hudiburg's lab.

September 24, 2015: Holly Barnard gave an invited talk at the University of Vermont's Rubenstein School of Environment and Natural Resources and visited with Dr. Carol Adair's lab.

September 9 – 11, 2015: Holly Barnard participated in the Exploring Four Critical Puzzles about Trees, Water, and Soil:  A Vision for Research workshop held at the Susquehanna Shale Hills Critical Zone Observatory at Penn State University.

June 18, 2015: Holly Barnard elected 2017 Vice-chair/2019 Chair of the Gordon Research Conference: Catchment Science: Interactions of Hydrology, Biology & Geochemistry.

The Ecohydrology Lab welcomes new research associate and lab manager!

Daphne Szutu has joined the lab and INSTAAR where she will be leading field activities for our project in Oregon and managing the lab.

June 3, 2015: Hallie Adams will present her Ecosphere paper to the community at Analyze Boulder.

The Ecohydrology Lab welcomes new graduate student!

Sidney Bush will be joining the Geography Department this summer as an M.A. student and her research will focus on hillslope infiltration in Panama.

April 2015, New Publication:

John Knowles' manuscript, "The relative contributions of alpine and subalpine ecosystems to the water balance of a mountainous, headwater catchment," has been accepted for publication in Hydrological Processes (Barnard co-author).

March 2015, New Publicaton:

Rachel Gabor's manuscript, "Influence of leaching solution and catchment location on the fluorescence of water-soluble organic matter", has been accepted for publication in Environmental Science and Technology (Barnard and Burns co-authors).

March 2015: Anna Vinton, the lab's first undergraduate technician, accepts PhD position at Yale University where she will study quantitative avian biology.  Congratulations, Anna!

Feb. 26, 2015: Fort Collins on the Front Lines of Climate Change:

Holly Barnard is an invited panelist for this event at Colorado State University. The event will kickoff with a special screening of the newly released short film, “Unacceptable Risk: Firefighters on the Front Lines of Climate Change,” and a panel of local community members and experts to discuss local climate impacts in Fort Collins, followed by a climate action workshop.


Feb. 18, 2015: New Grant Funded by the National Science Foundation, Hydrologic Sciences Program

Holly Barnard and Kamini Singha (Colorado School of Mines) have been awarded a new grant titled:  "Collaborative Research: From Roots to Rock - Linking Evapotranspiration and Groundwater Fluxes in the Critical Zone." This project addresses a critical knowledge gap in how water storage mediates the connection between evapotranspiration and groundwater dynamics, at the HJ Andrews Experimental Forest Long-term Ecological Research site in Oregon. The project goal is to mechanistically identify the interconnections between ET, groundwater fluxes, and discharge and to determine how these connections vary throughout the seasonal baseflow recession.

Feb. 2015, New Publication:

Clare Stielstra's manuscript, "Climatic and Landscape Influences on Soil Moisture are Primary Determinants of Soil Carbon Fluxes in Seasonally Snow-covered Forest Ecosystems", has been accepted for publication in  Biogeochemistry. (Barnard co-author)

Feb. 2015: Maggie Burns (M.A. 2014) accepts new project scientist position with FB Environmental Associates in Maine and New Hampshire.

Jan. 2015, New Publication:

Erin Berryman's (now with the USGS) manuscript: Complex terrain alters temperature and moisture limitations of forest soil respiration across a semi-arid to subalpine gradient, has been accepted for publication in Journal of Geophysical Research - Biogeosciences. (Barnard, Adams, and Burns co-authors)

Dec. 2014: Hallie Adams (M.A. 2014) started as an Environmental Education Specialist with the City of Fort Collins Utilities where she works to engage the community in resource conservation efforts and environmental stewardship through energy and water conservation education.

Sept. 2014, New Publication:

Hallie Adams' manuscript: Topography alters tree growth–climate relationships in a semi-arid forested catchment, has been accepted for publication in Ecosphere. (Barnard and Loomis co-authors).

Aug. 2014: Erin Berryman begins Research Ecologist position with the USGS Geosciences and Environmental Change Science Center in Lakewood, Colorado.

May 2014: Hallie Adams and Maggie Burns graduate from CU-Boulder Geography.  They will be missed dearly in the lab!

Contact Information

(Phone) 303 735-7062
University of Colorado Boulder, Campus Box 450, Boulder, CO 80309