Soil Saturation - Soil Saturation - Warning Decision Training Division (WDTD)
A comparison of the current model output of the water content in the top-layer soils at model initialization time to the maximum storage capacity of those top-layer soils.
CREST and SAC-SMA. The FLASH EF5 framework runs multiple hydrological models using a common input. For MRMS Version 12, there is a soil saturation product for the 2 models listed above.
NWS: WFO, RFC
MRMS Radar-Only QPE
Spatial: ~1 km x 1 km
Temporal: 10 minutes
The FLASH EF5 model framework uses MRMS Radar-Only QPE as input into the 2 hydrological models (CREST and SAC-SMA) which then use a subset of these hydrological principles (infiltration, storage, interflow, evapotranspiration, and runoff) to route the precipitation through the basins. The amount of modeled water content in the top-layer soils at model initialization time for each grid point is compared to the maximum storage capacity of those top-layer soils in each grid point. The result is a percentage value of maximum storage capacity.
Latest Update: MRMS Version 12
NOTE: In version 12, all FLASH products now use the instantaneous rainfall rates from the Dual-pol radar synthetic QPE product.
- Operational AWIPS
- V11.5 -- MRMS menu
- V12 -- via LDM, if set-up
- MRMS Development site
Gourley, J., Z. Flamig, H. Vergara, P. Kirstetter, R. Clark III, E. Argyle, A. Arthur, S. Martinaitis, G. Terti, J. Erlingis, Y. Hong, and K. Howard, 2016: The Flooded Locations And Simulated Hydrographs (FLASH) project: improving the tools for flash flood monitoring and prediction across the United States. Bull. Amer. Meteor. Soc. doi:10.1175/BAMS-D-15-00247.1, in press.
Jiahu Wang , Yang Hong , Li Li , Jonathan J. Gourley , Sadiq I. Khan , Koray K. Yilmaz , Robert F. Adler , Frederick S. Policelli , Shahid Habib , Daniel Irwn , Ashutosh S. Limaye , Tesfaye Korme & Lawrence Okello (2011) The coupled routing and excess storage (CREST) distributed hydrological model, Hydrological Sciences Journal, 56:1, 84-98, DOI: 10.1080/02626667.2010.543087