| hasReference |
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Baker, Waymon, ed, 1992: Research Highlights of the NMC Development
Division: 1989-1991. , NOAA, 469 pp..
Parrish, D.F., and Derber, J.C., 1992: The National Meteorological
Center's Spectral Statistical-Interpolation Analysis System. Mon.
Wea. Rev., 120, 1747-1763.
Randel, W.J., 1992: Global atmospheric circulation statistics, 1000
- 1 mb. TN-366+STR, National Center for Atmospheric Research, 256
pp..
Kanamitsu, M., 1989: Description of the NMC Global Data Assimilation
and Forecast System. Wea. and Forecasting, 4(3), 335-342.
Trenberth, K.E., and J.G. Olson, 1988: Evaluation of NMC Global
Analyses: 1979-1987. TN-299+STR, National Center for Atmospheric
Research, 82 pp..
Jenne, Roy L., 1986: NMC Analyses (unpublished). , NCAR, 14 pp.,
URL:
http://rda.ucar.edu/datasets/common/nmc.octagon/NMC-Analyses-RJ1986.pdf.
Cressman, G.P., 1959: An Operational Objective Analysis System. Mon.
Weather Rev., 87, 367-374.
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| hasSummary |
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The Final (FNL) global tropospheric analyses archived here were
produced by NCEP's Global Forecast System (GFS), which was run
operationally at 12-hour intervals to make multiple-day weather
forecasts, from July 1976 through mid-April 1997. FNLs are analyses
that are produced after the model has completed the forecast cycle,
and they include the most complete set of observations available for
a given cycle. The FNL from a given cycle, which is the best
available analysis, is then used in the initialization of the next
cycle.
FNL Data are available on pairs of 2.5-degree hemispheric grids
(North and South) at the Earth's surface, twelve vertical levels
from 1000 millibars up to 50 millibars, the tropopause, boundary and
some sigma layers, and a few other levels. Parameters include
surface pressure, sea level pressure, geopotential height,
temperature, sea surface temperature, potential temperature,
relative humidity, snow depth (weekly, Northern Hemisphere only)
precipitable water, u- and v- winds, and vertical motion.
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