| Number (In Section 4, octet 11) |
Parameter | Units |
Abbrev |
|---|---|---|---|
| 0 |
Flash Flood Guidance (Encoded as an
accumulation over a floating subinterval of time between the reference
time and valid time) |
kg m-2 |
FFLDG |
| 1 |
Flash Flood Runoff (Encoded as an accumulation over a floating subinterval
of time) |
kg m-2 | FFLDRO |
| 2 |
Remotely Sensed Snow Cover |
See Table 4.215 |
RSSC |
| 3 |
Elevation of Snow Coveblack Terrain |
See Table 4.216 | ESCT |
| 4 |
Snow Water Equivalent Percent of
Normal |
% |
SWEPON |
| 5 |
Baseflow-Groundwater Runoff | kg m-2 | BGRUN |
| 6 | Storm Surface Runoff | kg m-2 | SSRUN |
| 7 | Discharge from Rivers or Streams | m3 s-1 | DISRS |
| 8 | Group Water Upper Storage | kg m-2 | GWUPS |
| 9 | Group Water Lower Storage | kg m-2 | GWLOWS |
| 10 | Side Flow into River Channel | m3 s-1 m-1 | SFLORC |
| 11 | River Storage of Water | m3 | RVERSW |
| 12 | Flood Plain Storage of Water | m3 | FLDPSW |
| 13 | Depth of Water on Soil Surface | kg m-2 | DEPWSS |
| 14 | Upstream Accumulated Precipitation | kg m-2 | UPAPCP |
| 15 | Upstream Accumulated Snow Melt | kg m-2 | UPASM |
| 16 | Percolation Rate | kg m-2 s-1 | PERRATE |
| 17 | River outflow of water | m3 s-1 | RVEROW |
| 18 | Floodplain outflow of water | m3 s-1 | FLDPOW |
| 19 | Floodpath outflow of water | m3 s-1 | FLDPATHOW |
| 20 | Water on surface | kg m-2 | WATSURF |
| 21-191 | Reserved | ||
| 192-254 |
Reserved for Local Use |
||
| 192 |
Baseflow-Groundwater Runoff | kg m-2 | BGRUN |
| 193 |
Storm Surface Runoff | kg m-2 | SSRUN |
| 255 |
Missing |
| Notes: (1) Remotely sensed snow cover is expressed as a field of dimensionless, thematic values. The currently accepted values are for no-snow/no-cloud, 50, for clouds, 100, and for snow, 250. See code table 4.215. (2) A data field representing snow coverage by elevation protrays at which elevations there is a snow pack. The elevation values typically range from 0 to 90 in 100m increments. A value of 253 is used to represent a no-snow/no-cloud data point. A value of 254 is used to represent a data point at which snow elevation could not be estimated because of clouds obscuring the remote sensor (when using aircraft or satellite measurements). (3) Snow water equivalent percent of normal is stored in percent of normal units. For example, a value of 110 indicates 110 percent of the normal snow water equivalent for a given depth of snow. |