mapping future snow cover in idaho brandon c. moore university of idaho
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![Page 1: Mapping future snow cover in Idaho Brandon C. Moore University of Idaho](https://reader035.vdocuments.us/reader035/viewer/2022081519/56649d4c5503460f94a2ab11/html5/thumbnails/1.jpg)
Mapping future snow cover in Idaho
Brandon C. Moore
University of Idaho
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Outline
Model Development
Validation
Results
Future Research
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Model Development
Why start from scratch? Develop in-depth understanding Complicated models
Inputs Temperature Precipitation
Outputs Snow cover SWE Snow depth Snow density Runoff
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Model Development
Anderson, E.A., 1976.
Brown, R.D., B. Brasnett, and D. Robinson., 2003.
Singh and Singh.
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Model Validation
Validation at “high quality” SnoTEL locations
Determined by experienced SnoTEL users
Force snow model with observed monthly temperature and precipitation
Provides baseline of quality of the model
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Model Validation
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Model Validation
Remote Sensing Imagery
Snow Cover Extent Snow Water Equivalent
Hydrologic model comparisons
USGS streamflow data
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Model Results
Modeled April 1974 snow cover for the state of Idaho
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Model Results
Modeled April 2093 snow cover for the state of Idaho
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Model Results
Modeled April 2077 snow cover for the state of Idaho
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Model Results Trend in the fraction of Idaho snow covered.
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Model Results Elevation trend in statewide snow cover
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Model Results Figure from Mote et al, 2005
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Model Results
March trend in SWE (1950-1999)
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Future Research
Model Validation
As outlined previously
Multiple downscaled climate scenarios
GISS-ER, IPSL-CM4, CCSM3, PCM1
Move toward finer spatial resolution
1/8th degree to 1/16th degree
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Future Research Snow Cover Imagery
1990 – 2003 NOHRSC Difficulties
Multiple formats Projection Issues Spatial Resolution
2001 – present MOD10A2 8-day composite
Dataset for the Western US