Data Files

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2.2 Data Files

Data Types:

Data Type	Examples
IMAGE	Digital Satellite imagery: GOES, POES, MODIS, METEOSAT, GMS, FY2, GINI Digital Radar Imagery: NEXRAD, NIDS, NEXRCOMP, NOWrad®, MDR
POINT	Conventional observational data: surface, upper air, FSL wind profiler, NLDN lightning, PIREP/AIREP
GRID	NCEP model output, objective analyses
TEXT	Watches, warnings, forecasts, raw observations
NAV	Image navigation blocks

File Types:

File Name Prefix	Type of Data Stored
AREA	IMAGE data
GRID	GRID data
MD	POINT Source data
LW	Formatted Text files
VIRT	Virtual Graphics
OUT	MAP database files
File Name Suffix	Type of Data Stored
.ET	Image enhancement tables
.GRX	Graphics tables
.IDX	McIDAS-XCD weather text pointer files
.PIX	McIDAS-X navigated raster file
.RAP	Rapid access text pointer files
.RAT	Rapid access text data files
.ST	Image stretch tables
.XCD	McIDAS-XCD weather text files
.nc	netCDF (grid, image, and point source)

Naming convention for AREA, GRID, MD and VIRT files:

XXXX

nnnn

Where:

XXXX	AREA, GRID, MDXX, or VIRT
nnnn	4-digit integer: 0001-9999

Examples:

AREA0123

GRID0001

MDXX0051

VIRT9001