Accession Number:

ADA636589

Title:

Primitive Equation Model Progress Report, January 1971 - March 1971

Descriptive Note:

Corporate Author:

FLEET NUMERICAL WEATHER CENTRAL MONTEREY CA

Report Date:

1971-04-01

Pagination or Media Count:

37.0

Abstract:

Figures 1,2, and 3 depict the monthly mean error patterns for 24-hour PE sea-level pressure progs for January, February, and March 1971, respectively. Figures 4,5, and 6 show the corresponding 48-hour error patterns. Figures 7,8, and 9 depict the monthly mean error patterns for 24-hour PE 500 MB height progs for January, February, and March 1971, respectively. Figures 10, 11, and 12 show the corresponding 48-hour error patterns. Recalling that monthly mean error patterns are designed to show systematic bias in the model, note the improving trend during the period in the 24-hour surface progs as shown in Figures 1,2, and 3. In general, most of the systematic errors were located over land areas in February and March. Figures 4,5, and 6 also show improving trends in the 48-hour progs, particularly so in the Atlantic and Mediterranean. Figures 7,8, and 9 indicate this same improving trend at 500 MBS. The persistent negative bias over Northwest Africa and over the southwestern U.S. has been very difficult to diagnose. Elsewhere, the magnitudes are smaller and considerably easier to evaluate.

Subject Categories:

  • Meteorology
  • Numerical Mathematics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE