ecocast
Home Data Reserach Applications Technology Education Publications People
 
IMAGES & DATA  >  Meteorology
< meteorology  |  hydrology  |  carbon cycle >
Meteorology Overview
TOPS and the Ecocast architecture retrieve inputs from a variety of sources for use in the generation of nowcasts and forecasts. Key meteorology parameters include temperature (average, max, min), precipitation, radiation, and humidity. These parameters are retrieved from the NOAA Rapid Update Cycle (RUC) and NEXRAD data servers and gridded to 8 km for the continental U.S., before being used in the generation of GPP and other ecocasts. 1 km data for California has also recently been added to the Ecocast products (see links below). The gridded nowcast images for these parameters are archived and available below.
Current Conditions for the Continental U.S.
Daily nowcast of average temperature.
(more U.S. daily avg. temperature data)
Temperature
 
Precipitation

Daily maps are available for average temperature, maximum temperature, and minimum temperature for the continental U.S. These maps are derived from the daily datasets produced by the NOAA Rapid Update Cycle (RUC) weather prediction system, and are gridded at an 8 km resolution for the continental U.S.  1 km gridded maps are also now available for California.

bullet icon U.S. available daily nowcasts: < Tavg  |  Tmax  |  Tmin
>
bullet icon CA available daily nowcasts: < Tmax  |  Tmin >

 

Precipitation nowcasts are derived from the NOAA NEXRAD forecasting system and regridded daily for the continental U.S. (8 km) and for California (1 km) by Ecocast.  These maps show the daily total precipitation (in mm) for the continental U.S. and California.

bullet icon U.S. Daily Precipitation (8 km)
bullet icon California Daily Precipitation (1 km)


   
Radiation/Insolation
 
Humidity

Shortwave radiation is calculated using the NOAA RUC MM5 atmospheric radiation package and the GCIP algorithm, with additions for attenuation and scattering by all hydrometeor types. This scheme is a broadband scheme with separate components for longwave and shortwave radiation.  Radiation maps are regridded daily by Ecocast at 8 km resolution for the continental U.S., and 1 km for California.

bullet icon   U.S. Daily Radiation (8 km)
bullet icon   California 1km Shortwave Radiation (1 km)
bullet icon   California 1km GCIP Radiation (1 km)  

 

Vapor pressure deficit (VPD), a measure of humidity, is calculated daily and nowcast maps are derived from the NOAA RUC data for the continental U.S. and California.

bullet icon   U.S. Daily VPD (8 km)
bullet icon   California VPD (1 km)

   
 
footer graphic

Questions & Comments
updated 09/18/04

NASA Official: Rama Nemani
Curator: Forrest Melton