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Simple Sensitivity Analysis of Community Land Model using data from Sleepers River Watershed. Hydroclimatology Spring 2004 Dana Derickson, Sarah Doyle, Kelley Keese, Erick Leuro, Scout Skillman. Introduction. Sensitivity analysis on model created for the Sleepers River watershed in Vermont
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Simple Sensitivity Analysis of Community Land Model using data from Sleepers River Watershed Hydroclimatology Spring 2004 Dana Derickson, Sarah Doyle, Kelley Keese, Erick Leuro, Scout Skillman
Introduction • Sensitivity analysis on model created for the Sleepers River watershed in Vermont • Vegetation ( ↑, ↓ in LAI; grasses → trees) • Soils (clay, sand) • Increasing Temperature by 2 degrees • 1-D model representative of a subwatershed (8.4 km2) • Characterized by C3 arctic and non-arctic grasses with a maximum LAI of 3.5 and silty soils
Forcing Data • 5 years of forcing data from 1969 – 1974 • Hourly intervals • Air temperature • Precipitation • Specific Humidity • Wind speed • Incoming solar radiation • Incoming longwave radiation • Focused on the year of 1973
Monthly Average Climate Data Sleepers River Watershed (1973)
Monthly Average Climate Data Sleepers River Watershed (1973)
Monthly Average Climate Data Sleepers River Watershed (1973)
Predicted Outcomebased on the energy budget(↑ S - ↓S) – (↑ L - ↓L) = LE + SE + G • C1: No Veg • ↓ Rn b/c albedo↑ with absence of canopy • ↓ SH and G b/c less Rn • ↑ in ground E flux but no T flux nor canopy E→ ↓ LE ↑ SMC
