Numerical Weather Model Process
Numerical weather models (NWM) process analysis (A)
data, collected from ground stations and soundings, process them using
algorithms that conserve mass, momentum, energy and relate pressure and
elevation (e.g., the primitive equations) to generate forecasts (F) or
prognostics (progs). These forecasts can be compared
to observations using analysis data, which in the comparison process are
referred to as verifications (V). From the A, F, and V data assessment of NWM
forecast error and weather persistence error can be computed.
The National Weather Service (NWS) provides access to
many A, F, and V data for the
The Unisys corporation also
provides some access for the NGM, ETA, AVN, MRF, RUC, and ECMWF image data at: http://weather.unisys.com/
NWM data can also be accessed for display in ArcGIS using the World Meteorological Organization’s NDFD GRIB2
Decoder, described by the NWS online. Once the NDFD is installed, NWM products
available form the
Thanks to Andy Lee at SUNY ESF and his conversations
with Dave Nicosia and colleagues in getting this process sorted.
Links
Main NCEP products site
http://www.nco.ncep.noaa.gov/pmb/products/
FTP download site
ftp://ftpprd.ncep.noaa.gov/pub/data/nccf/com/gfs/prod/
Decoder information site
http://www.nws.noaa.gov/mdl/NDFD_GRIB2Decoder/
Decoder download site
http://www.nws.noaa.gov/mdl/NDFD_GRIB2Decoder/download.php
TRMM Process
TRMM Online Viewer of 0.25 degree 3-hourly data products: http://disc2.nascom.nasa.gov/Giovanni/tovas/TRMM_V6.3B42.shtml
Cyprus coordinates: 35.8 N, 32.2 E, 34.5 N, 34.6 E
Thanks to