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Introduction to Seasonal Snow Observations, Modeling, and Analysis

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Created:	Sep 28, 2025 at 5:13 a.m. (UTC)
Last updated:	Sep 28, 2025 at 5:14 a.m. (UTC)
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Abstract

This module will provide the learner with fundamental snow-hydrology terminalogy and the technical skills needed to conduct a seasonal snow analysis pursuant to water supply forecasting, covering snow terminology, snow observation systems, and snow modeling basics. Section 1 is an introduction to key snow terminology relevant to water supply forecasting. This section provides the foundation to work through the following sections and to successfully complete the module. Sections 2 focuses on snow observation systems from the USDA National Resource Conservation Service (NRCS) SNOTEL network and spatial data products from the NASA Airborne Snow Observatory (ASO) mission. Learners will undergo technical training on data retrieval, data processing, visualization, and analysis. Section 3 introduces the concept of a physically-based snow model, using NOAA's NWM NOAH-OWP-Modular as an example. The section will describe the fundamentals of the model including parameterizations, forcings, and outputs. The modeling section will conclude with technical training on data retrieval, data processing, visualization, and analysis. Section 4 is a comprehensive learning activity where the learner will apply the technical skills and knowledge gained throughout the module to evaluate the state-of-the-snowpack for the Hetch Hetchy Reservoir on the Tuolumne river in the Sierra Nevada mountains, a key water supply watershed for the greater San Franscico area.

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Name	Value
page_url	https://edx.hydrolearn.org/courses/course-v1:CIROH_HydroLearn+CVEEN6001+2025/about
thumbnail_url	https://ciroh-portal-static-data.s3.us-east-1.amazonaws.com/ff245794-98a0-4e0d-9adf-3a07706960c0.png

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Funding Agencies

This resource was created using funding from the following sources:

Agency Name	Award Title	Award Number
National Oceanic and Atmospheric Administration (NOAA), University of Alabama	CIROH: Enabling collaboration through data and model sharing with CUAHSI HydroShare	NA22NWS4320003 to University of Alabama, subaward A23-0266-S001 to Utah State University

How to Cite

Garousi-Nejad, I., R. Johnson (2025). Introduction to Seasonal Snow Observations, Modeling, and Analysis, HydroShare, http://www.hydroshare.org/resource/a58c3b920e8840bea10d768e856b0b18

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

http://creativecommons.org/licenses/by/4.0/

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