SOUTH ASIA GEOSPATIAL FORUM
Geospatially empowering South Asia
PG Diwakar Dy. Director, NRSC, ISRO Mar 2, 2016
National Remote Sensing Centre ISRO, Dept. of Space Current Indian EO Missions
RISAT-1 Land Atmosphere/ SARAL-ALTIKA Resources Oceans
Resourcesat 1/ 2 Oceansat-2 MISSION CATEGORY
Cartography
Cartosat-1 Cartosat-2 ISRO’s Geospatial Support to South Asia
• Multiple Satellite imaging and coverage • High repetivity of medium resolution images for Natural Resources Management – Eg. Land and Water; Disasters • Cartosat-1 Stereo for Digital Elevation Models • INSAT 3D based Weather Monitoring • Science Products – NICES, Climate Studies • Bhuvan Geoportal services extension • GAGAN & IRNSS for Location based services • …… SALIENT FEATURE OF NEPAL
• Nepal lies between 80° 04’ and 88° 12’ E and 26° 12’ and 30° 27’ N • Nepal is of roughly trapezoidal shape, 800 km long and 200 km wide • Nepal geographical area - 147,181 km²
Regions - 5 Zone - 14 District - 75 Municipalities - 190 Villages - 3,678 Nepal – RESOURCESAT AWIFS Coverage
Nepal is covered by 2 AWIFS &18 LISS 3 scenes Kathmandu and surroundings Kathmandu City and surroundings Drought Assessment for Sri Lanka
Goal: Space Images for Drought Assessment
Strategy • Provide online data, information products and technical support • Guidance to generate National-level drought profile • Online Satellite data analysis and information products • Mobile Apps for near real-time field data collection • Establish an operational data processing chain • Enable required technology for institutionalization • Impart training, capacity building and Hand-holding
Bhuvan Geoportal for Sri Lankan Drought
• Drought Assessment using Interactive tools and data download • Exclusive access to Srilanka for online information • Training & hand-holding for data processing and analysis
http://bhuvan.nrsc.gov.in. Video Conferencing to Train Sri Lanka Officials http://bhuvan-staging.nrsc.gov.in/lanka1/lanka1/training.php
Training
through video conferencing on 24 June 2014 (1400 to 1700 hours)
Participants
11 participants from 6 depts., (Agriculture, Irrigation, Disasters, Meteorology, MDA, ACCIMT)
Theme:
Utilization of Bhuvan
Admin. boundaries Resource Maps •Visualization Field Data Outputs • Districts • Land Cover slide / swipe • Uploaded NDVI maps • Sub-district units • Water bodies field input Anomaly maps • Crop layer • Soil layer Drought Monitoring System for Srilanka
• Development of data processing tools, customised for SriLanka • Highlights are • User-friendly software package - open source tools • Customised for SriLankan conditions • Provision to use multiple data sets for Drought Assessment • Designed for rapid customization, deployment and use • Optimised learning curve, explicit Help, Easy to use and adopt Online Dissemination of Products thorugh Bhuvan
Spatial Data Viewer - Srilanka “ Drought Monitoring”
•NDVI and Anamoly maps visualization, download and swipe facility •Resource maps – Land use land cover, Crop area, Waterbody and soil visualization •Facility to visualize Field collected data •Anomaly analysis •Output layers •Facility to upload raster datasets •Customized add content for filed data integration
NDVI Anomaly (%) during March, to Aug 1FN relative to 2005 (Normal Year)
MarchMarch April May June July Aug 2012 Vs 2005
2013 vs 2005
2014 vs 2005 ISRO support for Disaster Management International bodies • ISRO supports – International Charter ‘Space and Major Disasters’ • Lead Agency during Apr-Oct, 2015 – Sentinel Asia – Satellite data support – UNESCAP • Initiatives in Sri Lanka, Nepal, Myanmar,……. • Other Important Forum – CEOS – GEO – GEOSS – ….. Nepal – Trans boundary Disasters o A massive landslide blocked Landslide Sun Koshi river in Location Northern Nepal on 02-Aug-2014 o Possible
formation of a Nepal lake. Bihar, India o Flood threat for several villages downstream in Bihar, India. Landslides on Transboundary Rivers nrsc Sun Koshi River in Nepal
A landslide occurred on Sun Koshi river in Nepal on 2-Aug-14
Multi-temporal satellite data analysis shows the recession of the crown of the landslide
Water Impoundment was observed initially and in September, this impoundment was reduced due to human interventions through controlled blastings
Data helped Indian Govt. to work with Nepal Govt. in coordination/ avoiding major disaster in Bihar PreTask-event No: NEPAL/LS/2014/01 image nrsc
Plate No: August/06 Landslide on Sunkoshi river, Nepal (As seen from Resourcesat-2 LISS IV MX acquired on 5 Aug 2014)
• The landslide that blocked the Sunkoshi river, is a deep seated rockslide (length 1.3 km and width 0.652 km) resulting in formation of a dammed lake • The debris and boulders has blocked the river and moved Depletion zone onto the river terrace on the Landslide crown opposite bank. • Analysis of historical imagery shows that it is an unstable Depletion zone zone with existence of small landslides.
Accumulation zone
Accumulation zone
Landslide debris
HP site Nepal – Landslide on River Sun Koshi Details of the Impoundment on River Sun
RESOURCESAT-2 LISS-IV MX Image (05-Aug-2014) Koshi
Surface Area of the impoundment : 44 Ha RISAT-2 Image showing Landslide on River Sun Koshi
Post-Event Data – 05-Aug-2014
Landslide Location
Ponding / Hill Shadow
RISAT-2 SAR data
Image depicts a clear view of the landslide Ponding and water impounded due to blockade
* Due to undulations, the layover, fore-shortening and hill-shadows affects are observed Phuktal River Landslide, Lake formation.. Cartosat-2 (After) Cartosat-1 (Before)
Landslide debris
Landslide Crown
Surface cracks Nepal Earthquake – April, 2015 nrsc Synoptic View of Earthquake affected area
Mw 7.8 (25Apr2015)
Pokhara
Mw 7.3 (12May2015)
Kathmandu Nepal Earthquake – April, 2015 nrsc
Dharahara Tower, Kathmandu Cartosat-2 (05-Jan-2015) Cartosat-2 (27-Apr-2015) Before After
Temporary relief shelter Dharahara tower Dharahara tower
© 2015, National Remote Sensing Centre /ISRO Bhuvan Geoportal – Damage Assessment
Nepal Earthquake – April, 2015 nrsc Landslides Near Epicenter
Mw 7.8 (25Apr2015)
> 4500 landslides mapped so far © 2015, National Remote Sensing Centre /ISRO Artificial Lake formation Landslide Blocking the Valley Resourcesat-2 LISS IV mx (01-Apr-2015) Resourcesat-2 LISS IV Mx (30-Apr-2015) Before After
Landslide dammed lake
Snow
New landslide
Observation: Major landslide blocked the valley resulting in an artificial lake. Satellite Data Support to Sentinel Asia 2008-2015
No. of Country Events Indonesia 11 Phillippines 5 Vietnam 5 1 KAZAKHSTAN Australia 4 Japan 4 TAJIKISTAN 1 JAPAN Myanmar 4 PAKISTHAN 4 MYANMAR Nepal 4 NEPAL 4 3 CHINA Pakistan 3 BHUTAN 1 4 2 1 China 2 BANGLADESH TIAWAN 1 Laos 2 THAILAND2 VIET NAM Thailand 2 PHILIPPINES Cambodia 1 5 Bangladesh 1 1 1 5 Bhutan 1 SRILANKA MALASIYA Cambodia 1 India 1 TONGA 11 1 Kazakhstan 1 Malasiya 1 INDONESIA Solomon 1 4 Srilanka 1 AUSTRALIA Taiwan 1 Tajikistan 1 Tonga 1 ISRO’s Satellite Data Support for various disasters 2015
JAPAN NEPAL PAKISTHAN Sep Apr Jul, Oct MYANMAR Jul , Sep TIAWAN BANGLADESH Aug-Sep Sep PHILIPPINES VIET NAM Oct Mar, Jul
INDONESIA Feb, Oct
Earthquake Flood Oil Spill Typhoon Fire Land Slide Highlights: Activations Members - Calls Member Countries: 8 Status Calls Type of Disaster AUs under UA: 6 Activations Open: 3 Total: 18 Earthquake: 3 Flood: 6 UNOSAT: 3 Total : 17 Closed: 14 Merged: 1 Fire: 1 Ocean Storm: 2 Sentinel Asia: 1 PM Reports: 9 Volcano: 2 Landslide: 2
RUSSIA- 540
CHINA-529 NEPAL TURKEY-541 530&531 BAHAMAS-544 BANGLADESH-542 MYANMAR-537 GRENADA-535 COLOMBIA-533 VIET NAM- MARIANA GUATEMALA- 536 ISLANDS-532 545 BRAZIL-534
CHILE-543
CHILE-528 ARGENTINA- Earthquake 539 Flood CHILE- Volcano 538 Ocean Storm Fire International Charter ‘Space and Major Disasters'Land Slide ISRO Active in Global Disaster Management
International Charter – ISRO provided leadership during Apr – Oct 2015
ISRO’s Support - 2015-16 •Intl’l Charter – > 142 Scenes •Sentinel Asia – > 30+ Scenes •UNESCAP – Drought: Srilanka all season support; Nepal feasibility study done •UN-SPIDER – International Workshop on DRR in Mar 2016 ISRO’s Support to Major Disasters in Asia Pacific
Nepal Pakistan Japan Kosi Floods Floods Tsunami 2008 2010 2011
Philippines Thailand Philippines Typhoon Nesat Floods Typhoon Haiyan 2011 2011 2013 ISRO Support to Disasters: 2015-16
Myanmar GLOF , Feb 2016
Taiwan Earthquake, Feb 2016
CartoDSM for India & Surrounding Countries
• Using indigenous Augmented Stereo Strip Triangulation system • Processing based on Ground Control Points (GCPs) from GCPL and open sources • Implemented water bodies flattening for Indian terrain • Released as version-3 data source to user community
CartoDEM V3 India & Surroundings Country Area (sq.km) NEPAL 143,500 BHUTAN 38,117 AFGANISTHAN 652,800 PAKISTAN 770,880 BANGLADESH 130,170
1. India Elevation in meters INDIA 2,973,190 2. Pakistan 3. Afghanistan 4. Nepal 5. Bhutan 6. Bangladesh
DSMs of Surrounding Countries
Bhutan Afghanistan Pakistan
Elevation in meters
Nepal Bangladesh SATCOM and Satellite Navigation Services & Application
Satellite Communication Virtual Private Network
Nat’l Control DMS-DSC + Room +Decision Institutions Makers State HQ/ Control Rooms
Vulnerable Villages GAGAN (GPS Aided GEO IRNSS (Indian Regional Navigation Augmented Navigation) Satellite System)
Emergency • SATCOM – Enables satellite based connectivity with assured Communication Sat phones, DDWS, connectivity, inspite impending Disaster situation Fishermen DAT, Search & • GAGAN – Enables “safety of life application” with integrity, Rescue… accuracy & availability for Civil Aviation and location based services • IRNSS - An independent System providing Navigation services in the Indian region. Provides the user with high position accuracy and the region extending to about 1500 km around India GeoTagging Applications
• GAGAN enabled Mobile Application is used for field data collection/ Geotagging • Applications are Geo-data inventory, monitoring activities, periodic scientific data collection, disaster management, etc. • The Apps are developed using open source & Cross–platform technologies. • Apps uses built-in SMARTPHONE features - GPS, Camera, GPRS/3G/4G/WiFi……. • Enhancements – With GAGAN– Higher order of location accuracy is achievable.
Satellite Locator & Coverage Viewer