Australian Government Geoscience Australia MODIS Development Activities at

Australian Government Geoscience Australia MODIS Development Activities at ACRES Simon Oliver Remote Sensing Science and Strategy Geoscience Australia

Overview • • • MOD 09 Surface Reflectance Direct Broadcast implementation SEADAS L 1 processor Toward SMAC (Simplified Method for Atmospheric Correction) Vegetation Indices (NDVI / EVI) Compositing (1 day / n-day) Geoscience Australia

MOD 09 DB implementation • • Download from NASA Direct Readout Lab *note – not latest institutional code Install SDP Toolkit (provides routines to MOD 09) GBLAV (surface pressure and temperature) and AVN ozone data sets in lieu of GDAS and OZ_Daily products for NRT MOD 021 KM, HKM, QKM and MOD 03 geolocation MOD 035 cloud mask is optional Requires ozone estimate and forecast data preceding and following pass time – linear interpolation Routines for ftp retrieval of these included in DB port Geoscience Australia

MOD 09 DB implementation Hints • • Direct Broadcast Test data not on DRL Implement SEADAS first (easier to integrate than IMAPP outputs) Integration with SEADAS requires minor software patch to metadata check & remake PCF can be picky and difficult to configure so look here first Geoscience Australia

MOD 09 DB implementation Progress • • • ACRES product run successfully (SEADAS inputs) Swath to Grid for re-projection Go to production once test processing complete Geoscience Australia

MOD 09 Surface Reflectance Geoscience Australia

MOD 09 DB implementation Comparison • MODIS DB Surface Reflectance comparison with LPDAAC products Geoscience Australia

SEADAS • • SEADAS 4. 8 not configured for current ACRES MODIS L 1 B output file content i. e. single L 1 B file output. Modl 1 db version enables 250 m, 500 m and 1000 m product separation. Installation simple – substitution in ACRES IMAPP workflow straightforward IMAPP Terrain correction bug fixed in SEADAS Geoscience Australia

PDS SEADAS CLOUDMASK MOD 09 NDVI EVI Ldope (Mask Creator) MRTSwath (project) Surface Reflectance Composite Tool requirements -Maximum value from stack -Exclude cloud (Mask 1) -Exclude swath angle > 45 from nadir -Include closest to nadir NDVI EVI Cloudmask Mask 1 Composite Tool 1 day or n days Swath angle Mask 2 Land/Sea Mask 3 Geoscience Australia

Toward SMAC In ACRES MODIS development environment University of Wisconsin • MOD 07 Profiles implemented • MOD 04 Aerosol implemented • MOD 05 WVNIR (Water vapour ) implemented • • Integration with DLI’s SMAC routine not attempted (pre-processing requirements) MOD 09 development to parallel SMAC (potential for application to other ACRES products) Geoscience Australia

Sentinel Developments • • Adding supplementary datasets to current Sentinel website NDVI and EVI from Rapid Response DB software (NASA DRL) L 1 B / MOD 09 mosaicking/compositing (currently with HDFLook) Compositing mechanisms to be developed in -house to constrain view angle, remove cloud pixels and determine maximum pixel value Geoscience Australia

EVI composite Geoscience Australia

Sentinel Developments - others • • DLI MODIS Night Fire Implementation AVHRR / CSIRO hotspot algorithm implementation – IDL and C Geoscience Australia