MODIS Processing Options

Level 1B swathproduct

Scene size (Granule) Geoscience Australia offer Level 1B full length pass products and 10 degree Granule products.
Pixel size and file sizes for download Pixel size (metres) Bands Approximate zipped archive size - total (Mb)
250 1-2 330
500 1-7
(bands 1-2 resampled)
300
1000 1-36
(bands 1-7 resampled)
300
Processing level Level 1B
Format HDF - EOS
Software SeaDAS v4.9
File naming convention for Level 1B HDF files _ _ _ .hdf
example:
  • MOD021KM.Terra20031005T123241Z20031005T124320Z.hdf
  • MOD02HKM.Terra20031005T123241Z20031005T124320Z.hdf
  • MOD02QKM.Terra20031005T123241Z20031005T124320Z.hdf
  • MOD03.Terra20031005T123241Z20031005T124320Z.hdf

Level 1B map oriented product

Scene Size
(Granule)
Across track 2330 kilometres
Along track 10 degrees of latitude measured along the centre line of the swath. Scene boundaries occur along the centre line at 10°S, 20°S, 30°S and 40°S. The amount of data acquired above 10°S and below 40°S varies with each acquisition.
Pixel size and File sizes for download Pixel size (metres) Bands Approximate zipped archive size - total (Mb)
250 1-2 200
500 1-7
(bands 1-2 resampled)
180
1000 1-36
(bands 1-7 resampled)
230
Processing level Map Oriented Level 1B - 10 degree Granule product derived from Level 1B data.
Pixel values are converted to radiance (W/m2/sr/µm) using 32 bit floating point calculations and scaled to 16 bit output to reduce the data volume.
Format GEOTIFF signed 16 bit file with ER Mapper and ENVI headers.
Projection Equirectangular.
Software MRT Swath Tool v2.1
File naming convention for Level 1B Map Oriented GEOTIFF _ _ _ _
example:
  • TERRA_34071_1_1km_Level1B_Band_01.ers (ER Mapper)
  • TERRA_34071_1_1km_Level1B_Band_01.tif (GEOTIFF)
  • TERRA_34071_1_1km_Level1B_Band_01.tif.hdr (ENVI)
  • TERRA_34071_1_1km_Level1B_Band_01.tfw (GEOTIFF world file)
res- 250m, 500m, 1km
Customers need to define the new projection file in ER Mapper and ENVI.
Please see information on Importing and Georeferencing MODIS Data into image processing systems for more details.
Locational accuracy Within 1 pixel for both TERRA and AQUA MODIS data.

Surface reflectance swath product

Scene Size (Granule) Geoscience Australia offer Surface Reflectance full length pass products and 10 degree granule products.
Pixel size and File sizes for download Pixel size (metres) Bands Approximate zipped archive size - total (Mb)
Surface Reflectance Full Resolution 1-7 & 26 860
Surface Reflectance Coarse Resolution (CRS) 1-7 & 26 10
Processing level Surface Reflectance - 10 degree Granule product derived from Surface Reflectance data. Pixel values are scaled from reflectance units (*10000) to reduce the data volume.
Format
HDF - EOS
Software
MOD09 (Collection 4 equivalent LPDAAC)
File naming convention for Surface Reflectance HDF _ _ _ .hdf
example:
  • MOD09.Terra20031005T123241Z20031005T124320Z.hdf (full resolution output)
  • MOD09CRS.Terra20031005T123241Z20031005T124320Z.hdf (coarse resolution output)

Surface reflectance map oriented product

Scene Size
(Full Swath)
Across track 2,330 kilometres
Along track Full Swath
Pixel size and File sizes for download Pixel size (metres) Bands Approximate zipped archive size - total (Mb)
250 1-2 520
500 1-7 430
1000 1-7 & 26 100
Processing level Map Oriented Surface Reflectance. Pixel values are scaled from reflectance units (*10000) to 16 bit output to reduce the data volume.
Format GEOTIFF signed 16 bit file with ER Mapper and ENVI headers.
Projection Equirectangular.
Software MRT Swath Tool v2.1
File naming convention for Surface Reflectance
Map Oriented GEOTIFF
_ _<0>_ _
example:
  • TERRA_34071_0_1km_Surface_Reflectance_Band_01.ers (ER Mapper)
  • TERRA_34071_0_1km_Surface_Reflectance_Band_01.tif (GEOTIFF)
  • TERRA_34071_0_1km_Surface_Reflectance_Band_01.tif.hdr (ENVI)
  • TERRA_34071_0_1km_Surface_Reflectance_Band_01.tfw (GEOTIFF world file)
res- 250m, 500m, 1km
Customers need to define the new projection file in ER Mapper and ENVI.
Please see information on Importing and Georeferencing MODIS Data into image processing systems for more details.
Locational accuracy Within 1 pixel for both TERRA and AQUA MODIS data.

Topic contact: earth.observation@ga.gov.au Last updated: July 18, 2012