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Delivering AATSR data to Australian users and an application to NDVI

Delivering AATSR data to Australian users and an application to NDVI. Matt Paget and Edward King Land and Air group September 2005 CSIRO Marine and Atmospheric Research. Introduction. AATSR Level 1B, ATS_TOA _1P DVDs are provided by Ian Barton, CSIRO Lots of them .. 2000+, 7.5 Tb Pic:.

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Delivering AATSR data to Australian users and an application to NDVI

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  1. Delivering AATSR data to Australian users and an application to NDVI Matt Paget and Edward King Land and Air group September 2005 CSIRO Marine and Atmospheric Research

  2. Introduction • AATSR Level 1B, ATS_TOA _1P • DVDs are provided by Ian Barton, CSIRO • Lots of them .. 2000+, 7.5 Tb • Pic: Goal is to catalogue, index and format the data to promote uptake of AATSR in the Australian remote sensing community.

  3. Ingest from DVD to Hard disk Convert to HDF format Make a browse and track map image Deliver to the web server Database Table names: Spacecraft Instrument (eg, AATSR) Original media (eg, DVD) Processing Centre (eg, LRA) AATSR TOA Scene PDS file HDF file Browse scene Archived media (Tape, Hard disk) Various transform tables Archive HDF, browse and track map to Tape Website and CGI scripts Generate metadata The processing system • Automatic (excluding DVD loading) and scriptable • Open-source software (Perl, C, Tcl/NAP, MySQL, GMT) • Extensible to other satellite time series (eg potentially ATSR-2, MERIS) .. generic

  4. Conversion to HDF and Browse Images Day Night • Rationale • PDS format requires specialised software (eg EnviView) • Desire a file format that is Self-documenting, Portable, and Interpretable by a variety of Users HDF satisfies this: • Widely used standard format • Attributes to explicitly define coordinate variables • Transparent missing values

  5. Website .. http://www.eoc.csiro.au/aatsr/ Browse through all the passes on a daily basis • View an individual pass • scroll the browse image • download files

  6. NDVI .. Compositing (1) ATS_TOA_1POLRA20030304_004027 Re-mapped pass AATSR cloud mask (mod.) CLAVR mask

  7. Multi-temporal composite Strong contrast indicates that selected pixels were imaged up to one month apart • False-colour image of Australia • Max. NDVI pixels and browse LUTs • Reduced banding  monthly is ok NDVI .. Compositing (2) Maximum Value NDVI =

  8. NDVI .. Australia through 2003

  9. Thank You http://www.eoc.csiro.au/aatsr Contact CSIRO Phone: 1300 363 400+61 3 9545 2176Email: enquiries@csiro.auWeb: www.csiro.au Contact, Matt Paget and Edward King Name: Matt PagetTitle: Land and Air groupPhone: +61 2 6246 5786Email: matt.paget@csiro.auWeb: www.cmar.csiro.au

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