Difference between revisions of "Mapping Table:Example Mapping Table File"
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Latest revision as of 20:45, 8 August 2008
The following example Mapping Table file is for the North Fork watershed. Index maps of land use and soil texture are used to assign all the parameter values. The land use index map can contain three values, 1, 2, and 3. The soil texture index map can contain only the values 1 and 2. Tables for processes not used and multiple methods of solving different processes, such as Green and Ampt infiltration and Richards’ equation can be created. Which method is used will be determined by the card in the project file, i.e. GREEN_AMPT, INF_REDIST, INF_RICHARDS.
GSSHA_INDEX_MAP_TABLES INDEX_MAP soil1.idx "Soils map of North Fork" INDEX_MAP landuse.idx “Land use map of North Fork” INDEX_MAP landuse.idx “This map not used” ROUGHNESS “Land use map of North Fork” NUM_IDS 3 ID Description Roughness 1 Urban 0.05 2 Fields 0.2000 3 Fields 0.1000 INTERCEPTION “Land use map of North Fork” NUM_IDS 3 ID Description StorCap IntrCoeff 1 Urban 0.1000 0.1000 2 Fields 0.1000 0.1000 3 Forest 0.2000 0.2000 RETENTION “Land use map of North Fork” NUM_IDS 3 ID Description Retention 1 Urban 0.5 1 Fields 1.0 2 Forest 2.0 GREEN_AMPT_INFILTRATION “Soils map of North Fork” NUM_IDS 2 ID Description HY_COND CAP_HEAD POR POR_IDX RES_SAT 1 Clay 0.10 50.0 0.45 3.0 0.10 2 Sand 1.0 7.0 0.55 1.0 0.05 GREEN_AMPT_INITIAL_SOIL_MOISTURE “Soils map of North Fork” NUM_IDS 2 ID Description Moisture 1 Clay 0.40 2 Sand 0.10 RICHARDS_EQN_INFILTRATION_BROOKS “Soils map of North Fork” NUM_IDS 2 MAX_NUMBER_CELLS 65 ID Descript Ks θs θr θi θwp d λ ψb Δz 1 Clay 0.1 0.5 0.1 0.25 0.15 10.0 3.0 -50.0 1.0 0.1 0.5 0.1 0.35 0.15 50.0 3.0 -50.0 2.0 0.1 0.5 0.1 0.45 0.15 100.0 3.0 -50.0 5.0 2 Sand 1.0 0.45 0.1 0.25 0.05 10.0 1.5 -10.0 2.0 1.0 0.45 0.1 0.35 0.05 10.0 1.5 -10.0 5.0 1.0 0.45 0.1 0.35 0.05 10.0 1.5 -10.0 10.0 EVAPO-TRANSPIRATION “Land use of North Fork” NUM_IDS 2 ID Description Alb Wilt VegH VRadC CanRes 1 Urban 0.100 0.100 0.100 0.100 0.100 2 Fields 0.200 0.200 10.0 0.200 0.200 3 Forest 0.300 0.300 0.15 0.300 0.300 SOIL_EROSION_PROPS “Soils map of North Fork” NUM_IDS 2 ID Description Erode Sand Silt 1 Clay 0.100 0.100 0.900 2 Sand 0.200 0.900 0.100 SOIL_EROSION_FACTORS “Land use map of North Fork” NUM_IDS 3 ID Description C Mng Cons P 1 Urban 0.100 0.100 1 Fields 0.100 0.100 2 Forest 0.500 0.500
GSSHA User's Manual
- 12 Mapping Table
- 12.1 File Description
- 12.2 Index Maps
- 12.3 Grid-based Mapping Tables
- 12.4 ID Line Format
- 12.5 Example Mapping Table File
- 12.6 Stream Mapping Tables
- 12.7 Sediment Erosion Mapping Tables
- 12.7 Constituent Mapping Tables