mapping inundation extent for bihar state using esa sentinel-1 … · 2017. 8. 17. · district...

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Siwan East Champaran Saran Gopalganj West Champaran Bara Muzaffarpur Parsa Ballia Kushinagar Vaishali Deoria Rautahat Sheohar Sitamarhi 17 August 2017 | FL-2017-0010-IN | Version 1 Map Prepared by: Data Provided by: The analysis excluded permanent water bodies including reservoir, tanks and ponds and this reflects only the inundation extent. Please note the surface water extent mapped has not yet been validated in the ! ! ! ! ! ! ! ! ! ! ! ! ! Masan Nakre Jhajha Gandak Gandak Harbora Sikrana Samohti Ghaghara Tiar nadi Bansi nadi Sandi nadi Ghoghri nadi Siwan East Champaran Saran Gopalganj West Champaran Bara Muzaffarpur Parsa Ballia Kushinagar Vaishali Deoria Rautahat Sheohar Sitamarhi Legend North-eastern India, southern Nepal and Bangladesh received heavy rainfall during the last few days, which caused widespread flood claiming 160 human lives and displacing millions of people from their homes. Indian state of Bihar, which receives most of the flood waters from rivers in upstream Nepal is also seriously affected in the ongoing disaster event. Four districts located along the Indian- Nepal border in Bihar Kishanganj, Araria, Purnea and Katihar districts are under high inundation affecting nearly one million people. Flood inundation and damages are also reported in other districts Darbhanga, Madhubani, Sitamarhi, Madhepura, Saharsa, Supaul as well as East and West Champaran. District wise satellite estimated flood extent - Muzaffarpur 280 sq.km, West Champaran 615 sq.km, East Champaran 969 sq.km, Sitamarhi 330 sq.km and Siwan 248 sq.km. Mapping Inundation extent for Bihar State using ESA Sentinel-1 Satellite Data The depiction and use of boundaries, geographic names and related data shown in these maps are based on the sources they have been drawn from and quoted. These are neither error-free nor do they imply official endorsement or the position of IWMI. ± 0 30 60 15 45 km Copyright(c) Sentinel-1 images Disaster Image :Sentinel-1 Date :16 Aug. 2017 District Boundary Cities/Town Road Flood River/Permanent water ! Rivers State boundary

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Page 1: Mapping Inundation extent for Bihar State using ESA Sentinel-1 … · 2017. 8. 17. · District wise satellite estimated flood extent - Muzaffarpur 280 sq.km, West Champaran 615 sq.km,

Siwan

East Champaran

Saran

Gopalganj

West Champaran

Bara

Muzaffarpur

Parsa

Ballia

Kushinagar

Vaishali

Deoria

Rautahat

Sheohar

Sitamarhi

17 August 2017 | FL-2017-0010-IN | Version 1

Map Prepared by: Data Provided by:

The analysis excluded permanent water bodies including reservoir,tanks and ponds and this reflects only the inundation extent. Pleasenote the surface water extent mapped has not yet been validated in the

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Masan

Nakre

Jhajha

Gandak

Gandak

Harbora

Sikrana

Samohti

Ghaghara

Tiar nadi

Bansi nadi

Sandi nadi

Ghoghri nadiSiwan

East Champaran

Saran

Gopalganj

West Champaran

Bara

Muzaffarpur

Parsa

Ballia

Kushinagar

Vaishali

Deoria

Rautahat

Sheohar

Sitamarhi

LegendNorth-eastern India, southern Nepal and Bangladesh received heavy rainfall during the last fewdays, which caused widespread flood claiming 160 human lives and displacing millions ofpeople from their homes.Indian state of Bihar, which receives most of the flood waters from rivers in upstream Nepal isalso seriously affected in the ongoing disaster event. Four districts located along the Indian-Nepal border in Bihar Kishanganj, Araria, Purnea and Katihar districts are under highinundation affecting nearly one million people. Flood inundation and damages are also reportedin other districts Darbhanga, Madhubani, Sitamarhi, Madhepura, Saharsa, Supaul as well as Eastand West Champaran.District wise satellite estimated flood extent - Muzaffarpur 280 sq.km, West Champaran 615sq.km, East Champaran 969 sq.km, Sitamarhi 330 sq.km and Siwan 248 sq.km.

Mapping Inundation extent for Bihar State using ESA Sentinel-1 Satellite Data

The depiction and use of boundaries, geographic names andrelated data shown in these maps are based on the sourcesthey have been drawn from and quoted. These are neithererror-free nor do they imply official endorsement or the positionof IWMI.

±

0 30 6015 45 km

Copyright(c) Sentinel-1 images

Disaster Image :Sentinel-1Date :16 Aug. 2017

District Boundary

Cities/TownRoad

FloodRiver/Permanent water

!

RiversState boundary