Checking for non-preferred file/folder path names (may take a long time depending on the number of files/folders) ...

Global Products for Cold-Region Hydrologic Modeling: Snow Accumulation, Snowmelt, and Frozen Ground Status Prediction


Authors:
Owners: This resource does not have an owner who is an active HydroShare user. Contact CUAHSI (help@cuahsi.org) for information on this resource.
Type: Resource
Storage: The size of this resource is 207.1 MB
Created: Jan 15, 2025 at 1:25 a.m. (UTC)
Last updated: Mar 12, 2026 at 2:55 p.m. (UTC)
Citation: See how to cite this resource
Content types: Multidimensional Content 
Sharing Status: Public
Views: 1756
Downloads: 114
+1 Votes: Be the first one to 
 this.
Comments: No comments (yet)

Abstract

This HydroShare Resorce provides the scripts for data retrievel and processing, model running and postanalysis, and figure creation for the manuscript under review by JOH. The abstract of the manuscript is as follows: Seasonal soil freezing and thawing processes significantly influence runoff generation dynamics during cold periods, affecting various hydrological and agricultural systems, including flood generation, soil erosion, and plant health. Representing frozen soil conditions in land surface or hydrological models is therefore crucial. While fully distributed models implement the process by solving energy-mass balance equations to obtain soil temperature profiles, parsimonious models using “snow tanks” or frozen ground states can provide suitable modeling solutions with reduced computational demands. However, even these parsimonious approaches to representing frozen ground typically require some additional complexity through additional inputs or surface energy balance calculations. This study evaluates the applicability of a simplified soil temperature prediction model that determines frozen/unfrozen ground states using only air temperature and snow cover data, reducing model complexity. We first validate the model performance using AmeriFlux network in-situ measurements across the United States and Canada. Furthermore, we provide a comprehensive assessment at the global scale with ERA5-LAND reanalysis data (1980-2020). The model demonstrates robust performance globally, achieving an average true frozen rate of 0.90 and false frozen rate of 0.06. We also investigate the model performance by month, and, while monthly analyses show drops in model performance for certain months, these lower scores are primarily due to the limited number of freeze-thaw events during these periods, which makes the model appear less accurate than it actually is. In terms of spatial performance, the model shows reduced accuracy in mountainous regions, including the Tibetan Plateau, Rocky Mountains, and Andes, suggesting the need for region-specific parameter calibration in orographic settings. Nevertheless, this parsimonious soil temperature model demonstrates significant potential as a computationally efficient solution for incorporating frozen ground effects in distributed hydrological models with simple conceptual runoff generation schemes.

Subject Keywords

Coverage

Spatial

Coordinate System/Geographic Projection:
WGS 84 EPSG:4326
Coordinate Units:
Decimal degrees
North Latitude
90.0000°
East Longitude
180.0000°
South Latitude
-65.0000°
West Longitude
-180.0000°

Content

Data Services

The following web services are available for data contained in this resource. Geospatial Feature and Raster data are made available via Open Geospatial Consortium Web Services. The provided links can be copied and pasted into GIS software to access these data. Multidimensional NetCDF data are made available via a THREDDS Data Server using remote data access protocols such as OPeNDAP. Other data services may be made available in the future to support additional data types.

Credits

Funding Agencies

This resource was created using funding from the following sources:
Agency Name Award Title Award Number
Princeton University None None

How to Cite

Li, D. (2026). Global Products for Cold-Region Hydrologic Modeling: Snow Accumulation, Snowmelt, and Frozen Ground Status Prediction, HydroShare, http://www.hydroshare.org/resource/eb6c57da63ec4742852d4583894aa9df

This resource is shared under the Creative Commons Attribution CC BY.

http://creativecommons.org/licenses/by/4.0/
CC-BY

Comments

There are currently no comments

New Comment

required