Impacts of microtopographic snow redistribution and lateral subsurface processes on hydrologic and thermal states in an Arctic polygonal ground ecosystem: a case study using ELM-3D v1.0
Abstract
Microtopographic features, such as polygonal ground, are characteristic sources of landscape heterogeneity in the Alaskan Arctic coastal plain. Here, we analyze the effects of snow redistribution (SR) and lateral subsurface processes on hydrologic and thermal states at a polygonal tundra site near Barrow, Alaska. We extended the land model integrated in the E3SM to redistribute incoming snow by accounting for microtopography and incorporated subsurface lateral transport of water and energy (ELM-3D v1.0). Multiple 10-year-long simulations were performed for a transect across a polygonal tundra landscape at the Barrow Environmental Observatory in Alaska to isolate the impact of SR and subsurface process representation. When SR was included, model predictions better agreed (higher R2, lower bias and RMSE) with observed differences in snow depth between polygonal rims and centers. The model was also able to accurately reproduce observed soil temperature vertical profiles in the polygon rims and centers (overall bias, RMSE, and R2 of 0.59°C, 1.82°C, and 0.99, respectively). The spatial heterogeneity of snow depth during the winter due to SR generated surface soil temperature heterogeneity that propagated in depth and time and led to ~10cm shallower and ~5cm deeper maximum annual thaw depths under the polygon rims and centers, respectively. Additionally,more »
- Authors:
-
[3]
- Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States). Climate and Ecosystem Sciences Division
- Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Environmental Sciences Division
- Univ. of Alaska, Fairbanks, AK (United States). Geophysical Inst.
- Publication Date:
- Research Org.:
- Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States); Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States). Oak Ridge Leadership Computing Facility (OLCF)
- Sponsoring Org.:
- USDOE Office of Science (SC), Biological and Environmental Research (BER)
- OSTI Identifier:
- 1436169
- Alternate Identifier(s):
- OSTI ID: 1462836
- Grant/Contract Number:
- AC02-05CH11231; AC05-00OR22725
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Geoscientific Model Development (Online)
- Additional Journal Information:
- Journal Name: Geoscientific Model Development (Online); Journal Volume: 11; Journal Issue: 1; Journal ID: ISSN 1991-9603
- Publisher:
- European Geosciences Union
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 58 GEOSCIENCES; 54 ENVIRONMENTAL SCIENCES
Citation Formats
Bisht, Gautam, Riley, William J., Wainwright, Haruko M., Dafflon, Baptiste, Yuan, Fengming, and Romanovsky, Vladimir E. Impacts of microtopographic snow redistribution and lateral subsurface processes on hydrologic and thermal states in an Arctic polygonal ground ecosystem: a case study using ELM-3D v1.0. United States: N. p., 2018.
Web. doi:10.5194/gmd-11-61-2018.
Bisht, Gautam, Riley, William J., Wainwright, Haruko M., Dafflon, Baptiste, Yuan, Fengming, & Romanovsky, Vladimir E. Impacts of microtopographic snow redistribution and lateral subsurface processes on hydrologic and thermal states in an Arctic polygonal ground ecosystem: a case study using ELM-3D v1.0. United States. https://doi.org/10.5194/gmd-11-61-2018
Bisht, Gautam, Riley, William J., Wainwright, Haruko M., Dafflon, Baptiste, Yuan, Fengming, and Romanovsky, Vladimir E. Mon .
"Impacts of microtopographic snow redistribution and lateral subsurface processes on hydrologic and thermal states in an Arctic polygonal ground ecosystem: a case study using ELM-3D v1.0". United States. https://doi.org/10.5194/gmd-11-61-2018. https://www.osti.gov/servlets/purl/1436169.
@article{osti_1436169,
title = {Impacts of microtopographic snow redistribution and lateral subsurface processes on hydrologic and thermal states in an Arctic polygonal ground ecosystem: a case study using ELM-3D v1.0},
author = {Bisht, Gautam and Riley, William J. and Wainwright, Haruko M. and Dafflon, Baptiste and Yuan, Fengming and Romanovsky, Vladimir E.},
abstractNote = {Microtopographic features, such as polygonal ground, are characteristic sources of landscape heterogeneity in the Alaskan Arctic coastal plain. Here, we analyze the effects of snow redistribution (SR) and lateral subsurface processes on hydrologic and thermal states at a polygonal tundra site near Barrow, Alaska. We extended the land model integrated in the E3SM to redistribute incoming snow by accounting for microtopography and incorporated subsurface lateral transport of water and energy (ELM-3D v1.0). Multiple 10-year-long simulations were performed for a transect across a polygonal tundra landscape at the Barrow Environmental Observatory in Alaska to isolate the impact of SR and subsurface process representation. When SR was included, model predictions better agreed (higher R2, lower bias and RMSE) with observed differences in snow depth between polygonal rims and centers. The model was also able to accurately reproduce observed soil temperature vertical profiles in the polygon rims and centers (overall bias, RMSE, and R2 of 0.59°C, 1.82°C, and 0.99, respectively). The spatial heterogeneity of snow depth during the winter due to SR generated surface soil temperature heterogeneity that propagated in depth and time and led to ~10cm shallower and ~5cm deeper maximum annual thaw depths under the polygon rims and centers, respectively. Additionally, SR led to spatial heterogeneity in surface energy fluxes and soil moisture during the summer. Excluding lateral subsurface hydrologic and thermal processes led to small effects on mean states but an overestimation of spatial variability in soil moisture and soil temperature as subsurface liquid pressure and thermal gradients were artificially prevented from spatially dissipating over time. The effect of lateral subsurface processes on maximum thaw depths was modest, with mean absolute differences of ~3cm. Our integration of three-dimensional subsurface hydrologic and thermal subsurface dynamics in the E3SM land model will facilitate a wide range of analyses heretofore impossible in an ESM context.},
doi = {10.5194/gmd-11-61-2018},
journal = {Geoscientific Model Development (Online)},
number = 1,
volume = 11,
place = {United States},
year = {Mon Jan 08 00:00:00 EST 2018},
month = {Mon Jan 08 00:00:00 EST 2018}
}
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What drives basin scale spatial variability of snowpack properties in northern Colorado?
journal, January 2014
- Sexstone, G. A.; Fassnacht, S. R.
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Effect of soil property uncertainties on permafrost thaw projections: a calibration-constrained analysis: Modeling Archive
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- Next Generation Ecosystems Experiment - Arctic, Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (US); NGEE Arctic, Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
Works referencing / citing this record:
Development and Verification of a Numerical Library for Solving Global Terrestrial Multiphysics Problems
journal, June 2019
- Bisht, Gautam; Riley, William J.
- Journal of Advances in Modeling Earth Systems, Vol. 11, Issue 6
Mechanistic Modeling of Microtopographic Impacts on CO 2 and CH 4 Fluxes in an Alaskan Tundra Ecosystem Using the CLM‐Microbe Model
journal, December 2019
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Assessment of the Ice Wedge Polygon Current State by Means of UAV Imagery Analysis (Samoylov Island, the Lena Delta)
journal, July 2019
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Development and evaluation of a variably saturated flow model in the global E3SM Land Model (ELM) version 1.0
journal, January 2018
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Pathways of ice-wedge degradation in polygonal tundra under different hydrological conditions
journal, January 2019
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Thaw processes in ice-rich permafrost landscapes represented with laterally coupled tiles in a land surface model
journal, January 2019
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Arctic tundra shrubification: a review of mechanisms and impacts on ecosystem carbon balance
journal, April 2021
- Mekonnen, Zelalem A.; Riley, William J.; Berner, Logan T.
- Environmental Research Letters, Vol. 16, Issue 5