Arkansas-Red Basin River Forecast Center (ABRFC)
Information updated on November 5, 2008, 8:19 pm GMT
General Data DescriptionThe ABRFC area of responsibility includes the drainage area of the Arkansas River above Pine Bluff Arkansas and the drainage area of the Red River above Fulton Arkansas. This comprises over 208,000 square miles and includes Oklahoma and portions of six neighboring states. Every hour a gridded (4 km x 4 km) precipitation field is created. This field is a combination of both WSR-88D Nexrad radar precipitation estimates and raingauge reports.
Data Stream Names
Data are quality assured by automated processes or ABRFC staff within 6 hr of observation and available at the ARM Archive within a few days after the date of the file.
The area covered is bounded by:
latitude - 33.603, 32.433, 38.027, 39.42
longitude - 106.456, 92.322, 90.678, 106.652
Data Stream Inputs
Notification Form Link
- Arkansas-Red Basin River Forecast Center
- The Hydrologic Rainfall Analysis Project (HRAP) grid as defined by Greene and Hudlow (1982) is used to define the location of each average precipitation value in a NEXRAD StageIII data set. The HRAP cell coordinates are defined in the image plane of a secant polar Stereographic map projection on a spherical, Earth-centered datum of radius 6371.2 km. The secant polar Stereographic projection has a standard (true) latitude of 60° North and a standard longitude (longitude of the projection center) of 105° West. In other words, features on the Earth's surface are projected onto a plane perpendicular to the axis of rotation and passing through the Earth at fg = 60°.
- Weather Surveillance Dopper Radar
- Fulton, R.A., J.P. Breidenbach, D.J. Seo, D.A. Miller, and T. O’Bannon, 1998: The WSR-88D Rainfall Algorithm. Wea. Forecasting, 13, 377–395. DOI: 10.1175/1520-0434(1998)013<0377:TWRA>2.0.CO;2
- Jay Breidenbach, D. J. Seo, Richard Fulton. 1998. Stage II and III Post Processing of NEXRAD Precipitation Estimates in the Modernized Weather Service. AMS 78th Annual Meeting Phoenix, Arizona, January 1998.