Peter C. Hartsough

Employment

2013-Present Project Scientist

University of California, Davis, CA Dept. of Land, Air and Water Resources

• Project leader Headwaters Hydrology Lab
• Team leader for the French Meadows Project
• Responsible for design, installation and maintenance of snow melt, soil moisture and evapotranspiration monitoring equipment for the Southern Sierra Critical Zone Observatory (CZO), American River Hydrologic Observatory (ARHO), Feather River Hydrologic Observatory (FRHO)
• Responsible for data management and integration to better understand the environmental response to global change at the rain/ snow interface

2017-2021 Academic Director of the Mandela Washington Fellowship

2015-2016 Faculty Director Hubert H. Humphrey Fellowship Program

University of California, Davis, Global Affairs

2003-2008 Dept. of Geography, UNR Reno, NV Dept. of Natural Resources and Env. Sci., UNR
Research and Teaching Assistant / Lecturer

• Taught NRES 304 Principle of Hydrology (2005) and GEOG 103 Geography of the World's Environment (2006-2007)
• Installed equipment on Zapotepetl in Mexico to monitor weather and tree growth for a long term study
• Organized ongoing data collection trips for electronic and isotopic data including ongoing maintenance of equipment in Mexico and Great Basin National Park
• Set up lab for extraction of cellulose and soil water samples for isotopic analysis
• Assisted in lab set up for Physical Dendrochronology Lab
• Responsible for teaching and running labs for Geography of the World’s Environment

1997-2003 Desert Research Institute Reno, NV
Research Assistant and Maki Fellow

• Responsible for two drilling projects on the Nevada Test site, including sample collection, extraction and analytical chemistry of soil water samples
• Oversaw Soils Lab at DRI 1997-1999
• Developed techniques and samplers for dry-fall chemistry
• Surface water, ground water and precipitation sampling and monitoring
• Proficient in MODFLOW, HYDRUS2D, NETPATH
• Built and maintained automated weather stations
• Proficient in Campbell data logger systems
• Designed and modified system for digital acquisition of borehole temperature measurements
• Organized and ran a radiation lab for primary production experiments in Antarctica

2001-2008 McGinley and Associates Reno, NV
Field Technician and Technical Writer

• Responsible for field sampling, hydrologic characterization, well logging and drilling supervision
• Responsible for writing technical quarterly reports for regulatory agencies and clients

1998-2001 University of Nevada, Reno, NV
Webmaster

• Responsible for running and maintaining a database driven web site, teaching classes in web design

1993-1996 Hartnsoul Woodscapes San Francisco, CA
General Contractor

• Self employed General Contractor

Teaching

2009-Present University of California, Davis, CA Dept. of Land, Air and Water Resources
Lecturer

• Instructor for Water, Power, Society, SAS/HYD10, an entry level course in the Science and Society program
• Instructor for Environmental Monitoring Course Spring 2009-2017, a required course for the Environmental Science and Management major
• Co-Instructor for California’s Dynamic Forests, a graduate level seminar on topics related to dynamic climate driven changes taking place in the forests of the Sierra Nevada
• Guest Lecturer Vadose Zone Hydrology, Forests and Society and Stable Isotope Applications in Environmental Science

2003-2008 Dept. of Geography, UNR Reno, NV Dept. of Natural Resources and Env. Sci., UNR
Lecturer

• Taught NRES 304 Principles of Hydrology (2005) and GEOG 103 Geography of the Worlds Environment (2006-2007) both undergraduate core science classes

Teaching Assistant

• Graduate Teaching Assistant GEOG 103 Geography of the Worlds Environment (2003-2005) Graded homework and exams, taught GIS and physical labs, held office hours, lead review sessions, facilitated in class demonstrations and guest lectured

Publications

Yang Yang, Asmeret Asefaw Berhe, Morgan E. Barnes, Kimber C. Moreland, Zhiyuan Tian, Anne E. Kelly, Roger C. Bales, Anthony T. O’Geen, Michael L. Goulden, Peter Hartsough, Stephen C. Hart, Potential Impact of Warming on Nutrient Storage in Seasonally Dry Forests: Insights from a 2300 m Elevation Gradient, Global Biogeochemical Cycles (2022), 36,11, e2022GB007429.  https://doi.org/10.1029/2022GB007429

Cui, G., Rice, R., Avanzi, F., Hartsough, P., Guo, W., Anderson, M., et al. (2022). Precipitation estimates and orographic gradients using snow, temperature, and humidity measurements from a wireless-sensor network. Water Resources Research, 58, e2021WR029954. https://doi.org/10.1029/2021WR029954

Kimber Candice Moreland, Zhiyuan Tian, Asmeret Asefaw Berhe, Karis J. McFarlane, Peter C. Hartsough, Stephen C. Hart, Roger Bales, Anthony T. O’Geen, Deep in the Sierra Nevada critical zone: Saprock represents a large terrestrial organic carbon stock, Environmental Research Letters (2021) https://doi.org/10.1088/1748-9326/ac3bfe

Mohammad Safeeq, Ryan R. Bart, Norman F. Pelak, Chandan K. Singh, David N. Dralle, Peter Hartsough, Joseph W. Wagenbrenner, How realistic are water-balance closure assumptions? A demonstration from the southern Sierra Critical Zone Observatory and Kings River Experimental Watersheds, Hydrologic Processes (2021) doi.org/10.1002/hyp.14199

Guotao Cui, Roger Bales, Robert Rice, Michael Anderson, Francesco Avanzi, Peter Hartsough, Martha Conklin, Detecting Rain–Snow-Transition Elevations in Mountain Basins Using Wireless Sensor Networks, Journal of Hydrometeorology (2020) doi.org/10.1175/JHM-D-20-0028.1

Russell P. Callahan, Clifford S. Riebe, Sylvain Pasquet, Ken L. Ferrier, Dario Grana, Leonard S. Sklar, Nicholas J. Taylor, Brady A. Flinchum, Jorden L. Hayes, Bradley J. Carr, Peter C. Hartsough, Anthony T. O’Geen, W. Steven Holbrook, Subsurface weathering revealed in hillslope-integrated porosity distributions, Geophysical Research Letters (2020) doi:10.1029/2020GL088322

Jorden L. Hayes, Clifford S. Riebe, W. Steven Holbrook, Brady Flinchum, Peter C. Hartsough, Porosity production in saprolite: Where volumetric strain dominates over chemical mass loss, Science Advances (2019) doi:10.1126/sciadv.aao0834

Zhiyuan Tian, Peter C. Hartsough, and Anthony T. O’Geen, Lithologic, Climatic And Depth Controls On Critical Zone Transformations, Soil Sci. Soc. Am. (2019) doi:10.2136/sssaj2018.03.0120

O’Geen, A., M. Safeeq, J. Wagenbrenner, E. Stacy, P. Hartsough, S. Devine, Z. Tian, R. Ferrell, M. Goulden, J.W. Hopmans, and R.Bales, Southern Sierra Critical Zone Observatory and Kings River Experimental Watersheds: A synthesis of measurements, new insights, and future directions. Vadose Zone J. (2018)17:180081. doi:10.2136/vzj2018.04.0081

Roger C. Bales, Michael L. Goulden, Carolyn T. Hunsaker, Martha H. Conklin, Peter C. Hartsough, Anthony T. O’Geen, Jan W. Hopmans, Mohammad Safeeq, Mechanisms controlling the impact of multi-year drought on mountain hydrology, Scientific Reports (2018) 8:690 doi:10.1038/s41598-017-19007-0

Malek SA, Avanzi F, Brun-Laguna K, Maurer T, Oroza CA, Hartsough PC, Watteyne T, Glaser SD. Real-Time Alpine Measurement System Using Wireless Sensor Networks. Sensors. (2017); 17(11):2583; doi: 10.3390/s17112583

Cobb, R., Hartsough, P., Ross, N., Klein, J., LaFever, D., Frankel, S. and Rizzo, D. 2017. Resiliency or restoration: management of sudden oak death before and after outbreak. Forest Phytophthoras (2017) 7(1):1-14. doi: 10.5399/osu/fp.7.1.4021

Klos, P. Zion, Goulden, Michael, Riebe, Clifford, Tague, Christina, O’Geen, A. Toby, Flinchum, Brady, Safeeq, Mohammad, Conklin, Martha, Hart, Stephen, Berhe, Asmeret Asefaw, Hartsough, Peter, Holbrook, W. Steven, Bales, Roger, Critical zone research challenges for predicting subsurface plant-accessible water: mountain ecosystems in a Mediterranean climate, WIREs Water (2018) e1277 doi: 10.1002/wat2.1277

Steven L. Voelker, J. Renée Brooks, Frederick C. Meinzer, John Roden, Anna Pazdur, Slawomira Pawelczyk, Peter Hartsough, Keirith Snyder, Lenka Plavcová, Jiří Šantrůček^. (2014) Isolating relative humidity: dual isotopes δ¹⁸O and δD as deuterium deviations from the global meteoric water line Ecological Applications 24:960–975, http://dx.doi.org/10.1890/13-0988.1

Holbrook, W.S., Riebe, C.S., Hayes, J.L., Harry, D., Reeder, K., Malazian, A., Dosseto, A., Hartsough, P., and Hopmans, J. (2013): Geophysical constraints on deep weathering and water storage potential in the Southern Sierra Critical Zone Observatory. Earth Surface Processes and Landforms, 39: 366–380. doi: 10.1002/esp.3502

Rings, J., T. Kamai, M. Kandelous, P.C. Hartsough, J. Šimůnek J. Vrugt, and J.W. Hopmans Bayesian Inference of Tree Water Relations Using a Soil-Tree-Atmosphere Continuum Model (2013) Procedia Environmental Sciences 01/2013; 19:26-36 doi: 10.1016/j.proenv.2013.06.004

Hartsough, P.C., and Meadows, M.W. (2012): Critical Zone Observatory: Snowline Processes in the Southern Sierra Nevada. Mountain Research Initiative Newsletter no. 7, November 2012.

Bales, R.C., J.W. Hopmans, T. O’Geen, M. Meadows, P.C. Hartsough, P. Kirchner, D. Baudette, C. Hunsaker Response to comment on “Soil moisture response to snowmelt and rainfall a Sierra Nevada mixed conifer forest” Vadose Zone J., 2012, v.11,vzj2012.0004r

Bales, R.C., J.W. Hopmans, T. O’Geen, M. Meadows, P.C. Hartsough, P. Kirchner, D. Baudette, C. Hunsaker Soil moisture response to snowmelt and rainfall a Sierra Nevada mixed conifer forest Vadose Zone J., (2011) 10:786-799. doi:10.2136/vzj2011.0001

Malazian, A., P.C. Hartsough, T. Kamai, C.S. Campbell, D.R. Cobos and J.W. Hopmans Evaluation of MPS-1 soil water potential sensor J. of Hydrology. (2011) 402:126-134. DOI: 10.1016/j.jhydrol.2011.03.006.

Biondi, F. and Hartsough, P., Using Automated Point Dendrometers to Analyze Tropical Treeline Stem Growth at Nevado de Colima, Mexico. Sensors, (2010) 10(6): 5827-5844 doi:10.3390/s100605827

Snyder, K, R. Monnar, S. R. Poulson, P.C. Hartsough, F. Biondi. Diurnal Variations of Needle Water Isotopic Ratios in Two Pine Species, Trees-Structure and Function (2010) Volume 24, Number 3, 585-595, DOI: 10.1007/s00468-010-0429-6

Biondi, F., P.C. Hartsough, and I. Galindo Estrada. Recent warming at the tropical treeline of North America. Frontiers in Ecology and the Environment 7(9): 463–464, 2009

Hartsough, P.C., S.R. Poulson, F. Biondi, and I. Galindo Estrada. Stable Isotope Characterization of the Ecohydrological Cycle at a Tropical Treeline Site. Arctic, Antarctic, and Alpine Research 40: 343-354, 2008

Biondi, F., P.C. Hartsough, and I. Galindo Estrada. Daily weather and tree growth at the tropical treeline of North America. Arctic, Antarctic, and Alpine Research 37(1): 16-24, 2005

Walvoord, M.A., Phillips, F.A., Stonestrom, D.A., Evans, R.D.., Hartsough, P.C., Newman, B.D., Striegl, R.G., Response to Comment on “A Reservoir of Nitrate Beneath Desert Soils”, Science, 304, 51 (2004) DOI: 10.1126/science.1095033

Walvoord, M.A., Phillips, F.A., Stonestrom, D.A., Evans, R.D.., Hartsough, P.C., Newman, B.D., Striegl, R.G., A Reservoir of Nitrate Beneath Desert Soils, Science, 302, Nov 7, 2003, DOI: 10.1126/science.1086435

Walvoord, M., Phillips, F., Tyler, S., Hartsough, P. Deep arid system hydrodynamics Part 2: Application to paleohydrologic reconstruction using vadose-zone profiles from the Northern Mojave Desert, WRR, 38, 12, 1291, (2002) doi:10.1029/2001WR000825

Hartsough, P., Tyler, S., Walvoord, M., Sterling, J. A 14.6 kyr record of nitrogen flux from desert soil profiles as inferred from vadose zone pore waters, Geo. Res. Let., 28:15, 2955-2958, 2001

In Prep

M. Safeeq, P.C. Hartsough, M. Meadows, A.T. O'Geen, Roger C. Bales, and J.W. Hopmans Stand-level variability in water storage and evapotranspiration from a White Fir (Abies concolor) (in preparation)

Eumont, E., P.C. Hartsough, A. Moradi,A.M. Berry, R. Storesund, and J.W. Hopmans Analysis of a Sierra Nevada white fir root biomass using terrestrial LiDAR and image processing (in preparation)

Hartsough, P.C., A. Malazian, M. Meadows, E. Rouneva, T. Kamai, and J.W. Hopmans, Monitoring of Deep Critical Zone Processes in a Southern Sierra Nevada Ecosystem (in preparation)

Book Chapters

Bales, R.C., M. Conklin, B. Kerkz, S. Glaser, J.W. Hopmans, C. Hunsaker , M. Meadows, P.C. Hartsough, Soil moisture response to snowmelt and rainfall a Sierra Nevada mixed conifer forest In: Levia.D.,et al. (Eds.), Forest Hydrology and Biogeochemistry: Synthesis of Research and Future Directions, DOI: 10.1007/978-94-007-1363-2_2, Springer Science, Buisness Media B.V.

Villalba, R., Luckman, B.H., Boninsegna, J., D'Arrigo, R.D., Lara, A., Villanueva-Diaz, J., Masiokas, M., Argollo, J., Soliz, C., LeQuesne, C., Stahle, D., Roig, F., Aravena, J.C., Wiles, G., Jacoby, G., Hartsough, P., Wilson, R.J.S., Watson, E., Cook, E.R., Cerano-Paredes, J., Therrell, M., Cleaveland, M., Morales, M.S., Moya, J., Pacajes, J., Massacchesi, G., Biondi, F., Urrutia, R., and Martinez Pastur, G. Dendroclimatology from Regional to Continental Scales: Understanding Regional Processes to Reconstruct Large-scale Climatic Variations Across the Western Americas In M.K. Hughes, H.F. Diaz, and T.W. Swetnam (editors), Dendroclimatology: Progress and Prospects Developments in Paleoenvironmental Research, Vol.11 Springer, 2011

Presentations

Hartsough, P.C., Environment Community of Practice, Introduction and Overview, Mandela Washington Fellowship, June 26, 2021, Virtual

Hartsough, P.C., Primer on California Water Delivery Systems, Mandela Washington Fellowship, Davis, CA, July 19, 2019.

Hartsough, P.C., Water Yield in Sudden Oak Death impacted forests on Mt. Tamalpais. Sudden Oak Death Symposium, June 27, 2019

Hartsough, P.C., Following the Water: Hydrologic investigations of Sudden Oak death treatments on Mt. Tamalpais.One Tam Science Summit, Oct. 5, 2018

Hartsough, P.C, Seeing the water through the trees, State of Mt. Tamalpais meeting, Courte Madera, CA 2016

Hartsough, P.C., Ekaterina Roudneva, Armen I. Malazian, Matthew W. Meadows, Roger C. Bales, Jan W. Hopmans. Paired tree and soil instrumentation: what can we learn from two instrumented sites across various gradients in a forested catchment. AGU Fall Meeting Dec 2012

Hartsough, P.C., E. Roudneva, A. Malazian, M. Meadows, A. Kelly, R. Bales, M. Goulden, J.W. Hopmans. Comparison of sap flux data from two instrumented tree species in a forested catchment with different levels of water stress. AGU Fall Meeting Dec 2011

Hartsough, P.C., E. Eumont, A. Malazian, E. Roudneva, R. Storesund, A. Moradi, and J.W. Hopmans , Root structure and function through whole tree root excavation: Southern Sierra Critical Zone Observatory. Ecological Society of America Annual Meeting, Austin, TX, August 5, 2011

Hartsough, P.C., A. Malazian, M. Meadows, J. Storch , K. Roudneva, , R.C. Bales, J.W. Hopmans Soil Moisture/ Tree Water Status Dynamics in Mid-Latitude Montane Forest, Southern Sierra Critical Zone Observatory, CA Eos, Transactions, AGU Annual Fall Meeting, Dec 2010

Hartsough, P.C., A. Malaizan, T. Kamai, E. Roudeva, J.W. Hopmans, Soil Moisture/ Tree Water Status Dynamics in a Mid-Latitude Forest, Southern Sierra Critical Zone Observatory, CA. Eos, Transactions, AGU Annual Fall Meeting, Dec 15, 2009

Hartsough, P., A. Malaizan, M. Meadows, J.W. Hopmans, R. Bales, Closing the Loop: Moisture dynamics across the soil/biotic interface in a mid-elevation forested landscape, Sierra Nevada, CA. Ecological Society of America Annual Meeting, Albuquerque, NM, August 5, 2009

Hartsough, P., A. Malaizan, A. Tuli, T. Kamai, F. Kizito, R. Bales, A. Broad, J.W. Hopmans, Remote Environmental Monitoring of Hydrologic/ Biotic Interaction in a Mountain Environment, Eos, Transactions, AGU Annual Fall Meeting, Dec 15, 2008

Hartsough, P., F. Kizito, A. Tuli, T. Kamai, A. Malaizan, R. Bales, A. Broad, J.W. Hopmans , Remote Environmental Monitoring with Three Wireless Sensor Networks, Hands-On CUASHI/HMF Workshop, Distributed Sensing: Taking it to the Field, Boulder, CO, July 16-18, 2008

Hartsough, P., M. Menon, S. Tyler. Nitrogen Deposition as Archived in Vadose Zone Profiles: Implications for Desert Nitrogen Budgets, Abstracts and Program, Nitrates in Nevada Groundwater, Nevada Water Resource Association, Carson City, NV, 2007

Hartsough, P.C., F. Biondi, and S. Poulson. High Elevation Monitoring in a Tropical Treeline Environment. Abstracts of the 102^nd Annual Meeting of the Association of American Geographers, Paper Session on "Dendrochronology VI: Tropical Dendrochronology I", Chicago, Illinois. 2006

Hartsough, P., Biondi, F. A Project Update from Southwestern Mexico: Real Time Measurement of Tree Growth and Weather from a High Elevation Tropical Site. Abstracts and Program, IAI CRN003 Final Science Meeting, Akumal, Mexico, March, 2005

Hartsough, P. Biondi, F. High Elevation Monitoring in the North American Tropics: Ecosystem/Climate Relationships on Nevado de Colima, Mexico, Eos, Transactions, AGU Annual Fall Meeting, Dec 8, 2004

Hartsough, P, Biondi, F., Characterization of a high elevation tropical pine forest for isotopic analysis of the North American Monsoon System: Nevado de Colima, Mexico, Eos, Transactions, AGU Annual Fall Meeting, Dec 8, 2003

Hartsough, P., Biondi, F. The Importance of High Elevation Monitoring in a Tropical Tree line Environment: A Project Update from Southwestern Mexico Abstracts and Program, IAI CRN003 annual meeting, Mendoza, Argentina, October, 2003

Hartsough, P., Biondi, F. Update on the North American Monsoon work on Nevado de Colima, Mexico Abstracts and Program, IAI annual meeting, Oaxaca, Mexico, March, 2002

Hartsough, P., Tyler, S., Walvoord, M., Sterling, J. The Use of Environmental Tracers as Indicators of Paleoclimate and the Paleohydrologic Response in Southern Nevada, USA, Eos, Transactions, AGU 81:19, May 9, 2000

Hartsough, P., Walvoord, M., Sterling, J., Tyler, S., Phillips, F
Holocene Record of Nitrogen Deposition as Archived in Vadose Zone Profiles Abstracts and Programs, GSA, October, 1999

Hartsough, P., Walvoord, M., Sterling, J., Tyler, S., Phillips, F.
Recent Studies of Paleorecharge from the Nevada Test Site. Presented at DOE-NV Vadose Zone Monitoring Workshop, Las Vegas, NV, 1998

Hartsough, P., Walvoord, M., Sterling, J., Tyler, S., Phillips, F.
The Use of Deep Vadose Zone Chloride Profiles to Resolve Multi-Epoch Tracer Tests in the Southern Great Basin, Eos, Transactions, AGU 79:45, November 10,1998

Awards and Fellowships

GSA Outstanding Student Award, 1999-2000
Maki Fellowship Recipient, Desert Research Institute 2001-2003
GSA Research Grant, Geological Society of America 2005-2006
Geography and Regional Science Program, National Science Foundation 2005-2008 Tracing the Waters Through the Trees: North American Monsoon Dynamics During the Past Four Centuries

Professional Memberships

Geological Society of America
American Geophysical Union
Ecological Society of America
International Association of Hydrologic Scientists
National Groundwater Water Association
Association for Tree Ring Research
Tree Ring Society
IGBP-PAGES

Education and Outreach

Hartsough. P.C., Sweazy, M. The hydrology of West peak restoration alternatives, Mt Tam Hiking series, Mt. Tamalpais, CA, June 2017

Hartsough, P.C. Seeing the Forest Through the Roots: A Bottom Up Approach to Forest Hydrology, NatureBridge Lecture series, Yosemite Valley, CA. February 2013

Hartsough, P.C., "How do we use GPS units in Science? Accurate Measurement of Location on Planet Earth". Adventures in Enrichment Camp, UC Davis, July 18, 2011 http://education.ucdavis.edu/pod/new-summer-enrichment-camps

Synergistic Activities

Mandela Washington Fellowship Academic Director 2017-21

Hubert H. Humphrey Fellowship Director 2015-16

Operations Director, Campbell Track Research Facility, UC Davis 2014-15

Hydrology Graduate Group Showcase field trip guide 2012-2015

Journal Reviewer: Vadose Zone Journal, Geophysical Research Letters-Biogeosciences, Arctic, Antarctic and Alpine Research, Sensors. Agricultural and Forest Meteorology, Water Resources Research, PLOS One, Water, Ecohydrology

NSF Proposal Reviewer 2008-Present

Technical Advisory Committee Member, Nevada Econet, 2006-2008

Student Association for International Water Issues, Co-President, 1999-2003

UNR, Hydrologic Colloquium Series, Committee Member, 1998-2006