skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Toward the Development of a Cold Regions Regional-Scale Hydrologic Model, Final Project Report

Abstract

This project improves meso-scale hydrologic modeling in the boreal forest by: (1) demonstrating the importance of capturing the heterogeneity of the landscape using small scale datasets for parameterization for both small and large basins; (2) demonstrating that in drier parts of the landscape and as the boreal forest dries with climate change, modeling approaches must consider the sensitivity of simulations to soil hydraulic parameters - such as residual water content - that are usually held constant. Thus, variability / flexibility in residual water content must be considered for accurate simulation of hydrologic processes in the boreal forest; (3) demonstrating that assessing climate change impacts on boreal forest hydrology through multiple model integration must account for direct effects of climate change (temperature and precipitation), and indirect effects from climate impacts on landscape characteristics (permafrost and vegetation distribution). Simulations demonstrated that climate change will increase runoff, but will increase ET to a greater extent and result in a drying of the landscape; and (4) vegetation plays a significant role in boreal hydrologic processes in permafrost free areas that have deciduous trees. This landscape type results in a decoupling of ET and precipitation, a tight coupling of ET and temperature, low runoff, andmore » overall soil drying.« less

Authors:
 [1];  [1];  [2]
  1. Univ. of Alaska, Fairbanks, AK (United States)
  2. (Cable) [Univ. of Alaska, Fairbanks, AK (United States)
Publication Date:
Research Org.:
Univ. of Alaska, Fairbanks, AK (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Biological and Environmental Research (BER) (SC-23). Climate and Environmental Sciences Division
Contributing Org.:
University of Washington, Department of Civil and Environmental Engineering
OSTI Identifier:
1415347
Report Number(s):
DOE-UAF-0006913
DOE Contract Number:  
SC0006913
Resource Type:
Technical Report
Resource Relation:
Related Information: Cable, J.M., K. Ogle, Bolton, W.R., Bentley, L.P., Romanovsky, V., Iwata, H., Harazono, Y., and Welker, J.: Permafrost thaw affects boreal deciduous plant transpiration through increased soil water, deeper thaw, and warmer soils. Ecohydrology, 7(3): 932-997, 2013.Endalamaw, A., Bolton, W. R., Young-Robertson, J. M., Morton, D., Hinzman, L., and Nijssen, B.: Towards improved parameterization of a macroscale hydrologic model in a discontinuous permafrost boreal forest ecosystem, Hydrol. Earth Syst. Sci., 21, 4663-4680, https://doi.org/10.5194/hess-21-4663-2017, 2017.Young-Robertson, J.M., Raz-Yaseef, N., Cohen, L.R., Rahn, T., Newman, B., Wilson, C., and Wullschleger, S., Evaporation dominates evapotranspiration on Alaska’s Arctic Coastal Plain, Arctic, Antarctic, and Alpine Research. In revision.Young-Robertson, J.M., Bolton, W.R., Bhatt, U., Cristobal, J., and Thoman, R.,: Deciduous trees are a large and overlooked sink for snowmelt water in the boreal forest. Nature Scientific Reports, 7, Art no. 29504, DOI: 10.1038/srep29504, 2016.Young-Robertson, J.M., Ogle, K., and Welker, J., Thawing seasonal ground ice: An important water source for boreal forest plants in Interior Alaska. Ecohydrology, 10(3), DOI: 10.1002/eco.1796, 2017.
Country of Publication:
United States
Language:
English
Subject:
58 GEOSCIENCES; 97 MATHEMATICS AND COMPUTING; 54 ENVIRONMENTAL SCIENCES; Hydrologic Modeling; Upscaling; Parameterizations; Discontinuous Permafrost; Boreal Forest

Citation Formats

Hinzman, Larry D., Bolton, William Robert, and Young-Robertson, Jessica. Toward the Development of a Cold Regions Regional-Scale Hydrologic Model, Final Project Report. United States: N. p., 2018. Web. doi:10.2172/1415347.
Hinzman, Larry D., Bolton, William Robert, & Young-Robertson, Jessica. Toward the Development of a Cold Regions Regional-Scale Hydrologic Model, Final Project Report. United States. doi:10.2172/1415347.
Hinzman, Larry D., Bolton, William Robert, and Young-Robertson, Jessica. Tue . "Toward the Development of a Cold Regions Regional-Scale Hydrologic Model, Final Project Report". United States. doi:10.2172/1415347. https://www.osti.gov/servlets/purl/1415347.
@article{osti_1415347,
title = {Toward the Development of a Cold Regions Regional-Scale Hydrologic Model, Final Project Report},
author = {Hinzman, Larry D. and Bolton, William Robert and Young-Robertson, Jessica},
abstractNote = {This project improves meso-scale hydrologic modeling in the boreal forest by: (1) demonstrating the importance of capturing the heterogeneity of the landscape using small scale datasets for parameterization for both small and large basins; (2) demonstrating that in drier parts of the landscape and as the boreal forest dries with climate change, modeling approaches must consider the sensitivity of simulations to soil hydraulic parameters - such as residual water content - that are usually held constant. Thus, variability / flexibility in residual water content must be considered for accurate simulation of hydrologic processes in the boreal forest; (3) demonstrating that assessing climate change impacts on boreal forest hydrology through multiple model integration must account for direct effects of climate change (temperature and precipitation), and indirect effects from climate impacts on landscape characteristics (permafrost and vegetation distribution). Simulations demonstrated that climate change will increase runoff, but will increase ET to a greater extent and result in a drying of the landscape; and (4) vegetation plays a significant role in boreal hydrologic processes in permafrost free areas that have deciduous trees. This landscape type results in a decoupling of ET and precipitation, a tight coupling of ET and temperature, low runoff, and overall soil drying.},
doi = {10.2172/1415347},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Jan 02 00:00:00 EST 2018},
month = {Tue Jan 02 00:00:00 EST 2018}
}

Technical Report:

Save / Share: