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Disaster Management Support Programme of ISRO -
Operational Flood Mapping and Management
ByP.Manjusree
Scientist Disaster Management Support Group
NRSC, ISRO, Hyderabad, IndiaE-mail: [email protected]
NISAR Science Workshop, Ahmedabad– 17-18, December 2014
NISAR Science Workshop, Ahmedabad– 17-18, December 2014
Flood Proneness in India
Disaster Date Cost(US$ X 1,000)Flood 1993 7,000,000Flood 2006 3,390,000Flood 2005 3,330,000EQ 2001 2,623,000Flood 2004 2,500,000Storm 1999 2,500,000Flood 2005 2,300,000Storm 1990 2,200,000Flood 2009 2,150,000Storm 1996 1,500,300
Economic Damages
Natural Disaster Occurence :1980 - 2010
• Cyclones: 8% of TGA (Long coastline)• Floods: 12% TGA (Major rivers- Brahmaputra,
Ganga)• A Major Disaster occurs every 2-3 years• Recent Major Flood disasters: Uttarakhand ,Jun2013;
Cyclone “PHAILIN”, Oct 2013; J& K Floods Sep 2014; Cyclone “HUDHUD” Oct 2014
Source: http://www.preventionweb.net/Source: http://www.preventionweb.net/
http://en.wikipedia.org/
ISRO-DMS Programme at a glance
Institutional Mechanism:
DMS Decision Support Centre (DSC) at NRSC
in association with Nodal Agencies
MHA, MOA, Cabinet
Secretariat, NDMA,
State Agencies, NGOs International CommitmentsInternational Charter on
Space & Major Disasters, SPIDER, Sentinel Asia, …
Key Areas for R&DLandslide/ Earthquake
Precursor Studies, Extreme Weather Events
Key Developmental EffortsAirborne SAR,
Communication Equipments, Support to IOTWS,
Constellation of EO Satellites
National Database -for Emergency
Management (NDEM)
Natural Disasters -Monitoring/ Damage
Assessment
VSAT based VPN- for Emergency Communication
Strengthening Early Warning
Systems Tsunami, Floods, Cyclone,
Drought, Landslides..
Development of Hydro-met.
Networks, DSS, ..
Capacity Building on DMSExclusive Training Prog
MHA: Ministry of Home AffairsMOA: Ministry AgricultureNGO: Non-Governmental OrganisationsNDMA: National Disaster Management Authority
NISAR Science Workshop, Ahmedabad– 17-18, December 2014
Flood Disaster ResponseKey Elements
•Meteorological observations•Hydrological observations•Web News scan• Local Depts
Flood Watch
•Type, Phase & intensity of the disaster•Optical & Microwave•Triggering Inter’l Charter & Sentinel Asia•Aerial survey
Satellite data planning & Acquisition
•Development of automation procedures for•Geometric correction•Delineation of water & flood layer• Integration with database layers
Satellite data Analysis
• Flood Maps at various scales• Flood damage statistics• Flood report• Flood progression & recession maps, Cumulative flood maps,
flood persistence maps
Product generation
•E-mail, ftp, drop box etc•Web portals Bhuvan, NDEM , DSC, NRSCProducts dissemination
NISAR Science Workshop, Ahmedabad– 17-18, December 2014
NISAR Science Workshop, Ahmedabad– 17-18, December 2014
Pareechu Lake-2004
Assam Flds-1998
Flood Mapping and Monitoring- Decadal JourneyReaching the needy through remote sensing
• Limited swath• Moderate resolution• Fortnightly coverage with
multiple satellites• Visual interpretation• Manual processing
• Large swath• Multi[ple resolutions• Alternate day coverage
with multiple satellites• Digital processing
• Large swath• High resolutions• Day & Night coverage • All weather capability• Support to States (RSACs, FMISCs)• Bhuvan-Flood services• International Disasters
Punjab Fld-1988
Sahibi Fld-1977
• Flood Hazard Zonation
• Flood Prone area• Flood Alert ………
Kosi Floods-2008
Flood Products
NISAR Science Workshop, Ahmedabad– 17-18, December 2014
• A cyclonic storm “Phailin” made landfall ataround 9 pm on 12th October 2013 nearthe coast of Gopalpur in Ganjam districtinundating vast stretches.
• DSC kept a close watch and RISAT-1 datawas planned over the affected areas.
• Combination of RISAT-1 data along withother satellite data helped in continuousmonitoring of the flood event.
Cyclone ‘PHAILIN’ – October, 2013
Bay of Bengal
Bay of Bengal
Pre-Event
RISAT:18-Sep-2013 Radarsat:12-Oct-2013
Bay of Bengal
RISAT:13-Oct-2013 Radarsat:14-Oct-2013
Post-Event
RISAT:16-Oct-2013 RISAT:18-Oct-2013RISAT:17-Oct-2013
Bay of Bengal
Bay of Bengal
Radarsat:15-Oct-2013
Bay of Bengal
Flood Inundation
Monitoring of the event Cumulative Flood MapInundation during 12-16, Oct, 2013
Flood Inundation
nrsc
nrscFlood Hazard Zonation Atlases
Assam (1998-2007) Bihar (1998-2010)
• Well appreciated by the State Administration
• Used for Flood mitigation measures
• Used for Regionaldevelopment plans
NISAR Science Workshop, Ahmedabad– 17-18, December 2014
Dissemination on web portals
bhuvan.nrsc.gov.in
NDEM private portal-
NISAR Science Workshop, Ahmedabad– 17-18, December 2014
Activations (2010-14)2010 : Gandak Embankment Breach in Bihar2011: Earthquake, Landslide, Sikkim - North East India2012: Floods & Landslides & Flood in Assam 2013: Cyclone Phailin & Floods in Uttarakhand2014: Cyclone Hudhud , Floods in northern India & Forest fire in Mt. Japfu, India
International Charter SupportGandak Embankment Breach in Bihar- Sep 2010
NISAR Science Workshop, Ahmedabad– 17-18, December 2014
Objective: To investigate the polarimetric SAR data for delineation of submerged crop fields
Satellite data: SLC of C-band data of 15-Oct-2011, 10-Sep-2010 and 03-Sep-2009 from RADARSAT satellite
Polarimetric SAR data - Flood studies
Methodology Results
Conclusion: C-band Polarimetric SAR data has the potential to identify the partially submerged crop fields
which is very useful for flood damage assessment
NISAR Mission - Flood Disaster Application
On-going :• Major floods and cyclones in India are monitored and mapped in
near real time using C-band SAR data from RISAT andRADARSAT satellites
• Flood maps at State, District and detailed level along with floodinundated area statistics are disseminated to the concerned innear real time.
• Flood damage assessment for selected areas is carried out onrequest basis
Prospective applications:• Monitoring and mapping of wide area floods in India- NISAR
increases the frequency of monitoring• Detailed flood mapping for specific areas• Flood damage assessment using Polarimetric data• Monitoring and assessment of wetlands• Monitoring of shallow flood plains
NISAR Science Workshop, Ahmedabad– 17-18, December 2014
Thank you for the kind attention……