File Naming

NOAA CoastWatch SeaWiFS products file naming convention is different from the naming convention implemented by NASA. CoastWatch Level-3 products may include a composite flag and the product name [as it is called in the Level-2 dataset]. The composite flag is the letter 'C' followed by a number that indicates how many datasets contribute to the composite product. The examples below should help in associating regional products with filenames:

File Naming Conventions

Level-2: DataProduct.SYYYYDDD.TTTT.hdf
Level-3: [T]DataProduct_SYYYYDDD_[C#]_TTTT_CoastWatchRegion[GCTP Projection Code]_DerivedProduct.extension

Example: SWFCW_S2004360_1755_GM16_chlora.png
Where:

• DataProduct may be one of:
  • SWFCW: SeaDAS standard SeaWiFS processed from L1
  • SWRCW: Stumpf SeaDAS processed from L1
  • C: indicates composite/mosaic of granules
  • #: the number of datasets used in the composite/mosaic
• CoastWatchRegion may be one of:
  • CB: Caribbean
  • EP: Eastern Tropical Pacific
  • GL: Great Lakes
  • GM: Gulf of Mexico
  • SE: Southeast
  • WC: West Coast
• DerivedProduct may be one of:
  • chlor_a: Chlorophyll-a concentration mg/m3
• extension may be one of:
  • hdf: Hierarchical Data Format (CW-HDF based on HDF4)
  • tif: GeoTIFF (version 1.8) based on TIFF Spec 6.0; 8-bit data with geolocation
  • png: Portable Network Graphics; 8-bit data
• [T]: Indicates thumbnail or reduced image size primarily for web display