1. MODIS Direct Acquisition, Processing and Applications @ CRISP KWOH, Leong Keong Director, CRISP E-mail : lkkwoh@nus.edu.sg APEIS Capacity Building Workshop on Integrated Environmental Monitoring of the Asia-Pacific Region 20-21 September 2002, Beijing, China CRISP Centre for Remote Imaging, Sensing and Processing

2. Overview Introduction Processing Levels Level-0 Processing –Browsed Image Generation –CRISP’s MODIS Web Cataloging System Level-1 Processing –NASA software Vs. IMAPP –MODIS Georectification Recent Application Conclusion and Future Developments

3. Status of CRISP MODIS Data Reception First Reception of TERRA MODIS – 3 March 2001 First Reception of AQUA MODIS – 15 July 2002 Processing system currently used – IMAPP v 1.4 (beta) Computing Platform – PC running LINUX CRISP Centre for Remote Imaging, Sensing and Processing

4. 13 metre X band Antenna 6 metre X band Antenna TERRA / AQUA data received if either one of the antenna is available. Either antenna can be used.

5. The first MODIS captured by CRISP on 3/3/2001

6. First MODIS image received and processed by CRISP – 3 March 2001 )

7. Processing Levels Two main levels –Level-0 Processing Frame Formatting Software developed by CRISP Catalogue Software RAW data archived on DLT –Level-1 Processing NASA GSFC level 1 processing software International MODIS/AIRS Processing Package (IMAPP) by University of Wisconsin Higher level processing –Georectification developed in CRISP

8. Level 0 Processing TERRA / AQUA X-Band Antenna Demodulator (Alcatel Omnisat) Downlinked Raw format Recorded on Hard disk (Datron DIS) MODIS CCSDS Packets GBADPackets Browse Image FrameSync & Reformat with RS correction (AQUA only)

9. Generate Browse Image A program is written to generate browse images directly from the MODIS PDS file. The program incorporate some simple geometry to “flatten’ the image and remove “bowtie” effect. The browse images is then fed into on our web catalogue system. The acquisition, archival, browse image generation and catalogue updating are performed automatically.

10. Before Flattening After Flattening Image Captured on 4 July 2001 Image Captured on 4 July 2001 (SWIR, NIR, RED)

11. CRISP’s MODIS Web Catalogue (crisp.nus.edu.sg)

13. TERRA Day Image

14. Night Image

15. AQUA Image

16. Level 1 Processing Two versions of level-1 processing has been used –International MODIS/AIRS Processing Package (IMAPP) –NASA GSFC MODIS level 1 Processing Software

17. Constructionrecords PDS File MOD01MOD02 MOD03 Level 1a Level 1b Geolocation NASA Software IMAPP GBAD File (AQUA Only)

18. Georectification

19. Georectification

21. Terra MODIS image on 4 July 2001 Hot Spots Derived from MODIS image

22. Forest Fire in Sumatra, 4 July 2001

24. SPOT Fire Locations A 2.8328N 111.9922E B 2.8344N 111.9994E C 2.8308N 111.9997E MODIS Hot Spots 2.8387N 111.9912E 2.8373N 112.0008E 2.8295N 111.9899E 2.8281N 111.9995E MODIS Hot Spots validated with SPOT fires 2001-05-23

25. SPOT Fires D 2.5633N 111.9192E E 2.5528N 111.9158E F 2.5533N 111.9211E G 2.5550N 111.9258E H 2.5531N 111.9303E MODIS Hot Spots 2.5642N 111.9143E 2.5628N 111.9239E 2.5563N 111.9034E 2.5549N 111.9130E 2.5535N 111.9226E 2.5521N 111.9322E 2.5508N 111.9417E 2.5456N 111.9117E 2.5443N 111.9213E

26. Conclusion and Future Developments CRISP has implemented an end to end MODIS DB reception, archival and processing system. Automatic processing, from level 0 processing, catalogue updating to level 1 processing and further georectification are performed. We are currently developing numerous applications for MODIS such as Cloud Mask, 8- days Cloud Free Composite, Fires detection and Ocean applications.