MEMORANDUM FOR:  Great Lakes CoastWatch Users
FROM:            George A. Leshkevich, Great Lakes CoastWatch Manager
SUBJECT:         CoastWatch File Naming Convention Update
DATE:            11/06/2001

New (Current) CoastWatch File Naming Convention

On November 6, 2001 (18:30 GMT, 1:30 pm local time), the CoastWatch file naming convention changed. The new file naming convention is:

YYYY_JJJ_HHMM_SSS_NR_PP.TYP

YYYYYear
JJJJulian Day
HHHour
MMMinute
SSSSatellite Code (N14, N16, etc.)
NRCoastWatch Node and Regional Scene (l, m, s, e)
PPProduct Data Type (d1, s7, etc.)
TYPFile Format Type (cwf, gif, hdf, etc)

Example2001_310_1740_n16_gl_d1.cwf 
2003_190_0636_n18_gr.hdf
2003_190_0636_n18_gr_s7.png
2003_190_0636_n18_gr_s7.tif

Old (Previous) CoastWatch File Naming Convention



File name format:  RYYDDDHH.STT, where:

 R   = CoastWatch Region Identifier

 YY  = Last two digits of the year (99 = 1999, 00 = 2000)

 DDD = Day of the year

 HH  = GMT Hour (00-23) or other designator
     = MM,  Meterological Model      

 S   = CoastWatch Subregion Identifier (unique within region)

 TT  = Type of Product Identifier
       
For example, an SST image of Lake Superior , G9035814.SS1.
                                                                  

If a product is not confined to a subregion within a CoastWatch region, use the synoptic identifier for the subregion. Regional Identifiers: Subregional Identifiers: G = Great Lakes L = Entire 5 lake region synoptic S = Superior and northern Michigan high resolution M = Michigan and Huron high resolution E = Erie and Ontario high resolution E = Northeast Coast M = Gulf of Maine high resolution G = Georges Bank high resolution D = Dump site 106 high resolution S = Southern New England high resolution C = Chesapeake Bay high resolution N = Northeast Synoptic E = Extended NE Region S = Southeast N = North Carolina high resolution G = South Carolina and Georgia high resolution E = East Florida high resolution S = South Florida high resolution W = West Florida high resolution Y = Southeast synoptic X = Extended SE Region M = Gulf of Mexico T = Texas high resolution C = Central Gulf Coast high resolution W = West Florida high resolution L = Louisiana and Mississippi high resolution Y = Gulf of Mexico synoptic P = Yucatan Penisula high resolution W = West Coast Y = West Coast synoptic (GAC at CEMSCS) Z = West Coast synoptic (LAC subsampled at node) O = Oregon high resolution L = Southern California high resolution W = Washington high resolution S = Southwest region high resolution U = Northern California high resolution N = Northwest region high resolution C = Caribbean P = Puerto Rico high resolution J = Jamaica high resolution H = Hawaii Y = Hawaiian synoptic H = Main Is. Mesoscale A = Alaska A = Aleutian Islands synoptic Z = non-US coast P = Persian Gulf
Product Type Codes: C1 = channel 1 albedo C2 = channel 2 albedo C3 = channel 3 brightness temperatures C4 = channel 4 brightness temperatures C5 = channel 5 brightness temperatures CM = Cloud Mask D1 = daytime split-window MCSST D2 = daytime dual-window MCSST D3 = daytime triple-window MCSST D4 = daytime split-window CPSST D5 = daytime dual-window CPSST D6 = daytime triple-window CPSST D7 = daytime split-window NLSST D8 = daytime dual-window NLSST D9 = daytime triple-window NLSST MO = meterological observations (synoptic) OR = Ocean reflectance R1 = channel 1 reflectance R2 = channel 2 reflectance RC = aerosol-corrected reflectance (C1 & C2) RD = aerosol and Rayleigh corrected reflectance (C1 & C2) S1 = nighttime split-window MCSST S2 = nighttime dual-window MCSST S3 = nighttime triple-window MCSST S4 = nighttime split-window CPSST S5 = nighttime dual-window CPSST S6 = nighttime triple-window CPSST S7 = nighttime split-window NLSST S8 = nighttime dual-window NLSST S9 = nighttime triple-window NLSST SZ = satellite zenith angle ZS = satellite zenith angle ZA = solar zenith angle ZN = nadir angle (scan angle) ZR = relative azimuth angle