ud_inp_subcatchment - Giswater/giswater_dbmodel GitHub Wiki
Description:
Identifies each subcatchment within the study area. Subcatchments are land area units which generate runoff from rainfall.
Fields:
| Column name | Data type | Description | Domain values |
|---|---|---|---|
| subc_id | character varying(16) | Id of subcatchment | |
| outlet_id | character varying(100) | Id of outlet, defined on inp_outlet | |
| rg_id | character varying(16) | Id of raingage, defined on raingage | |
| area | numeric(16,6) | Area of the subcatchment | |
| imperv | numeric(12,4) | Percent imperviousness of subcatchment. | |
| width | numeric(12,4) | Characteristic width of subcatchment | |
| slope | numeric(12,4) | Subcatchment slope | |
| clength | numeric(12,4) | Total curb length | |
| snow_id | character varying(16) | Id of snowpack, defined on inp_snowpack_id | |
| nimp | numeric(12,4) | Manning's n for overland flow over the impervious sub-area | |
| nperv | numeric(12,4) | Manning's n for overland flow over the pervious sub-area | |
| simp | numeric(12,4) | Depression storage for impervious sub-area | |
| sperv | numeric(12,4) | Depression storage for pervious sub-area | |
| zero | numeric(12,4) | Percent of impervious area with no depression storage. | |
| routeto | character varying(20) | IMPERVIOUS if pervious area runoff runs onto impervious area, PERVIOUS if impervious runoff runs onto pervious area, or OUTLET if both areas drain to the subcatchment's outlet | IMPERVIOUS, PERVIOUS, OUTLET |
| rted | numeric(12,4) | Percent of runoff routed from one type of area to another | |
| maxrate | numeric(12,4) | Maximum infiltration rate on Horton curve | |
| minrate | numeric(12,4) | Minimum infiltration rate on Horton curve | |
| decay | numeric(12,4) | Decay rate constant of Horton curve | |
| drytime | numeric(12,4) | Time it takes for fully saturated soil to dry | |
| maxinfil | numeric(12,4) | Maximum infiltration volume possible | |
| suction | numeric(12,4) | Soil capillary suction | |
| conduct | numeric(12,4) | Soil saturated hydraulic conductivity | |
| initdef | numeric(12,4) | Initial soil moisture deficit | |
| curveno | numeric(12,4) | SCS Curve Number | |
| conduct_2 | numeric(12,4) | Soil saturated hydraulic conductivity | |
| drytime_2 | numeric(12,4) | Time it takes for fully saturated soil to dry | |
| sector_id | integer | Id of the hydrological sector, defined on sector | |
| hydrology_id | integer | Id of hydrology, defined on cat_hydrology | |
| the_geom | geometry(MultiPolygon,SRID) | Multi polygon geometry of subcatchment | |
| descript | text | Description | |
| nperv_pattern_id | varchar(16) | Pattern for different subcatchment areas | |
| dstore_pattern_id | varchar(16) | Depression storage pattern | |
| infil_pattern_id | varchar(16) | Infiltration |