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CRISP Contribution toRegional Disaster Management and
Monitoring: An Update
CHIA Aik SongAssociate Scientist, CRISP
The 2nd Joint Project Team Meetingfor Sentinel Asia STEP2
Summary● Brief introduction to CRISP's satellite reception facilities and
capabilities.
● Outline of CRISP activities, in particular our contribution to Sentinel Asia and regional disaster management and monitoring in general.
● Some specific examples: updates of disaster monitoring in recent months.
Centre for Remote Imaging,Sensing and Processing (CRISP)
● Mission: To develop an advanced capability in remote sensing to meet the scientific, operational and business requirements of Singapore and the region.
● 3 core areas of activity:
– Ground Station Operations
– Research and Development
– Market Development
13m Antenna (1995)
6m Antenna (2001)
New 8.5m Antenna (Feb 2009)
Satellite Data Received at theCRISP Ground Station
1. SPOT 1, 2, 4 (since September 1995)
2. ERS 1, 2 (since March 1996)
3. RADARSAT 1 (April 1997 to 1999)
4. Terra (MODIS) (since March 2001)
5. IKONOS (since August 2001)
6. Aqua (MODIS) (since July 2002)
7. SPOT 5 (since October 2002)
8. GeoEye1 (since May 2009) NEWNEW
9. Worldview (coming soon...) NEWNEW
CRISPGround Stationsatellite coverage
Disaster Management and Monitoring
● Daily regional firemonitoring using highresolution SPOT satellite imagery (since 1998).
● Timely highresolution images (SPOT5, IKONOS) of natural disasters, e.g.
– Indian Ocean Tsunami (Dec 2004)
– Java Earthquake (May 2006)
– Tropical Cyclone Nargis (May 2008), etc.
● Satellite images of disasteraffected areas posted on CRISP website (http://www.crisp.nus.edu.sg)
– linked from the Sentinel Asia website.
Disaster Management and Monitoring● Data Provider for Sentinel Asia:
– Terra and Aqua MODIS hotspots pushed to FTP server; combined with hotspots from other sources and displayed on Sentinel Asia Wildfire webpage
– Web GIS service on CRISP website
– Email alerts to subscribers (and SA Wildfire Workgroup)
– Updated in nearreal time
● Research activities and data analysis:
– Coastal changes caused by 2004 tsunami and earthquake
– Biomass burning and aerosol & air quality research
– Environmental monitoring, including water quality and land cover studies
Monitoring of Biomass Burningin Insular Southeast Asia
● Vegetation fires are a yearly occurrence in Southeast Asia.
● The vast majority are manmade, primarily for landclearing.
● Cause for concern: transition of ENSO from La Niña to El Niño weather conditions.
● Past 2 years: La Niña and positive IOD phase (in 2007) resulted in cloudier conditions with higher rainfall in the insular Southeast Asia region.
● We can expect drier weather to increase the danger of vegetation fires burning out of control this year and the next.
● Real test of fire mitigation efforts in the coming El Niño period.
©© CNES 2009 CNES 2009
©© CNES 2009 CNES 2009
IKONOS Fire Example
● IKONOS is not used for regular firemonitoring, but fires may occasionally be captured.
● The following image in Riau, Sumatra, was received and processed on 19th June 2009. The display is in truecolour, with the full resolution at 1m (pansharpened).
©© CRISP 2009 CRISP 2009
Situ Gintung Dam Burst
● The Situ Gintung Dam in Tangerang District in Java, Indonesia (20km west of Jakarta) failed catastrophically on 27th March 2009, resulting in floods which killed at least 100 people.
● The following IKONOS images were acquired on 12th September 2007 and 28th March 2009.
©© CRISP 2007 CRISP 2007
12th September, 2007
©© CRISP 2009 CRISP 2009
28th March, 2009
GeoEye1 example
● GeoEye1, the newest satellite to be received at the CRISP ground station, has an even higher spatial resolution of 0.5m, compared to IKONOS at 1m.
GeoEye-1 at 0.5m resolution
Date: 28 May 2009
Location: Sentosa, Singapore
IKONOS 2 at 1m resolution
Date: 13 May 2009
Location: Sentosa, Singapore
©© CRISP 2009 CRISP 2009 ©© CRISP 2009 CRISP 2009
500m resolution Land Cover Mapof Insular Southeast Asia
● Relatively high resolution and uptodate land cover map of a region that is currently experiencing rapid change.
● Takes into account the special features of insular Southeast Asia in both data processing and in the actual classification scheme.
● Classification was carried out on a composite of the region generated from 250 Terra MODIS images (MOD09 land surface reflectance product) from JanJul 2007.
● 20 SPOT scenes were used for accuracy assessment, giving an 82% accuracy estimate.
500m resolution Land Cover Mapof Insular Southeast Asia
● Land cover maps like this may be useful for analyses of biomass burning and even largescale floods.
● Now available from the SAFE (Space Applications For Environment) website:
– http://www.eorc.jaxa.jp/SAFE/LC_MAP/
Thank You