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Data Ingest: Binary Delivery

High Resolution Data Service

The following lists the model output types and when they generally become available on the HDS circuit:

  • ETA MODEL PRODUCT SET: The ETA model data for North America is broadcast between 0210 and 0320 for the 00 GMT run and between 1410 and 1520 GMT for the 12 GMT run. The ETA run contains forecast information out to 48 hours including the initialized fields on a lambert conformal grid with a resolution of around 80 km. The vertical resolution is every 50 mb from 1000 to 100 mb. The variables broadcast include geopotential height, temperature, relative humidity, U and V wind components and vertical velocity. Other variables include sea level pressure, lifted index and quantitative precipitation. This totals approximately 1500 gridded fields.
  • NGM PRODUCT SET: The NGM model data for North America is broadcast between 0320 and 0420 for the 00 GMT run and between 1520 and 1620 GMT for the 12 GMT run. The NGM run contains forecast information out to 48 hours including the initialized fields on a lambert conformal grid with a resolution of around 80 km. The vertical resolution is every 50 mb from 1000 to 100 mb. The variables broadcast on mandatory levels include geopotential height, temperature, relative humidity, U and V wind components and vertical velocity. Other variables include sea level pressure, lifted index and quantitative precipitation. This totals approximately 1000 gridded fields.
  • GLOBAL PRODUCT SET (Aviation Forecast Model): The AVN global model data is broadcast between 0420 and 0930 for the 00 GMT run and between 1620 and 2130 GMT for the 12 GMT run. The AVN run contains forecast information out to 72 hours including the initialized fields on a 1.25 longitude by 1.25 latitude grid. The vertical resolution is on mandatory levels from 1000 to 100 mb. The variables broadcast on mandatory levels include geopotential height, temperature, relative humidity, U and V wind components and vertical velocity. Other variables include sea level pressure, tropopause and maximum wind level information. The global data are divided up into 8 separate grids each covering one eighth of the globe. This totals approximately 850 grids per sector or 6800 grids to cover the entire globe.
  • NMC EXTENDED RANGE PRODUCT SET (Medium Range Forecast Model): The MRF global model data is broadcast between 0800 and 1100 for the 00 GMT run. No data for the 12 GMT run is broadcast. The extended range MRF run contains forecast information from 3.5 to 10 days on a 5 longitude by 5 latitude grid. The variables broadcast are the 500 mb geopotential height and sea level pressure. The global data are divided up into 2 separate grids representing the northern and southern hemisphere. This totals approximately 120 gridded fields.
  • NMC OCEANOGRAPHIC PRODUCT SET (Sea Surface Temperature Analysis): The sea surface temperature analysis is broadcast between 2130 and 2230 for the 12 GMT run. The temperature grids are provided on both 5 longitude by 5 latitude and 2 longitude by 2 latitude grids. The global temperature data are divided up into 4 separate grids for each grid resolution. This totals approximately 8 gridded fields.
  • NMC OCEANOGRAPHIC PRODUCT SET (Significant Wind Wave Model): The SWW model is broadcast between  0930 and 1030 for the 00 GMT run and 2130 and 2230 for the 12 GMT run. These grids contain forecast information out to 72 hours on a 5 longitude by 5 latitude grid. The global data are divided up into 4 separate grids. This totals approximately 60 gridded fields.
  • NMC SPECIAL PRODUCT SET (Snow Cover Analysis): The snow cover analysis is broadcast between 2200 and 2230 for the 12 GMT run. The snow cover grids are provided on a 2 longitude by 2 latitude grid for the northern hemisphere. The data are divided up into 2 separate grids covering the northern hemisphere. This totals approximately 2 gridded fields.
  • ECMWF EXTENDED RANGE PRODUCT SET (ECMWF Forecast Model): The ECMWF model data is broadcast between 2200 and 0200 for the 12 GMT run. No data for the 00 GMT run is broadcast. The ECMWF run contains forecast information out to 6 days including the initialized fields and is broadcast in two formats GRIB and GRID providing a degree of overlap. The GRIB data are on a 2.5 longitude by 2.5 latitude grid. The GRID data are on a 5 longitude by 5 latitude grid. The variables broadcast are the 500 mb geopotential height, 850 mb temperature, sea level pressure and 200 and 850 mb U and V wind components. The global data is divided up into 12 separate overlapping grids covering various parts of the northern and southern hemisphere. This totals approximately 250 gridded fields.

McIDAS Satellite Feed

The following lists the model output types and when they generally become available on the Unidata McIDAS circuit:

Product Arrival Times
Sector GOES East GOES West
Visible :45 :15
Infrared :45 :15
Water Vapor :45 :15
Floater :30  

NIDS

The products for each site come in roughly every 5 minutes.  There are approximately 30 products at each report time. These include:

NIDS Data Types
Name Description Type
bref1 Base reflectivity, level 1 radial
bref2 Base reflectivity, level 2 radial
bref3 Base reflectivity, level 3 radial
bref4 Base reflectivity, level 4 radial
lref1 Layer reflectivity, level 1 rastor
lref2 Layer reflectivity, level 2 rastor
lref3 Layer reflectivity, level 3 rastor
cref Composite reflectivity, level 1 rastor, with text
vel1 Base velocity, level 1 radial
vel2 Base velocity, level 2 radial
vel3 Base velocity, level 3 radial
vel4 Base velocity, level 4 radial
srmv1 Storm relative mean velocity, level 1 radial
srmv2 Storm relative mean velocity, level 2 radial
tops Echo tops rastor
vil Vertical integrated liquid rastor
pre1 1 hour precipitation total rastor
pret Storm total precipitation rastor
prea Digital precipitation array rastor, 1/40th LFM grid
vad Vertical azimuth display winds aloft time cross section

NOWRad

The NOWRad radar composites come in 2 forms: the Master sector and the US sector.  The Master sector is the high resolution image and comes in once every 5 minutes. The US sector comes in every 15 minutes.


For further information about WXP, email technical-support@weather.unisys.com
Last updated by Dan Vietor on August 12, 1998