Custom Visuals, LLC

Automated Data Processing | Weather | Energy | Financial

Weather


Parameter

Description

Source
Currently, our weather data is from NOAA's Global Forecast System (GFS). Our archive starts from 05/21/2011 and contains all four runs of 0.5 degree data going forward. This set of files averages about 15 GB per day, or about 450 GB per month in the native compressed GRIB2 format. As uncompressed CSV files, they would average about 1.7 TB per day, or 50 TB per month.
Categories
Each file contains 60+ main categories, such as Temperature, Wind Speed, Pressure, Humidity, Cloud Cover, etc. There are about 350 sublevels per file, such as 0 m above sea level, 500 mb, etc. All sub levels are provided for each category in the main order page. If you prefer to choose each sub level, please visit our a la carte (TBD) order page.
Region
GFS data is Global, as its name implies. Breaking the data into regions allows easier menu selection. However, the entire global set is available as a menu selection.
Model Run
GFS data is provided four times per day, at 0, 6, 12 and 18 hour (GMT) times. The models are slightly different for each run, which implies varying levels of accuracy for certain parameters in each run. Describing those differences is best left to the numerical analysis experts within the Environmental Modeling Center (http://www.emc.ncep.noaa.gov/gmb/STATS/STATS.html and http://ftp.emc.ncep.noaa.gov/exper/nova/branchmtg/12-13-12_GFS4cycle.pptx). Particular model runs can be selected or removed per order based on your needs.
Forecast Range
Each model run provides a forecast range from 0 to 384 hours (16 days). Hours 0 - 192 are in 3 hour increments (i.e. 0, 3, 6, 9 … 192). Hours 204 to 386 are in 12 hour increments (i.e. 204, 216, 228 … 384). Select as few hours as needed, up to the entire 384 hour range. Both beginning and ending hour can be specified.
Output format
The following formats are available for Weather data: CSV, Excel, GRIB2, HTML, KML, MySQL, Oracle, PostgreSQL, PNG, SQL Insert, Sybase ASE, Sybase IQ, TSV and XML.

Excel format combines the Forecast data for each run date into multiple sheets of a single workbook.
KML format is treated and charged as a double format since it combines both TIFF and KML markup into a single structure.
PNG format is a map display generated from GrADS commands.
SQL Insert format contains single line insert commands, suitable for most databases. All other SQL formats (i.e. MySQL, Oracle, etc.) are formatted as bulk loaders.
TSV format is a tab-separated values file.