0 3 6 9 12 151.5Km

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Ca Giun

Chà NòiTây Gát

Đồng Lê

Minh Hó a

Đồng Lạc

Đồng Cao

Tân Thúy

Sơn Trạch

Tam Trang

Ba.Cha Lo

Phong Nha

Thanh Tân

Quảng Bình

Thống Nhất

Thanh Lạng

Thanh Long

Trường Xuân

Ba. Năng Hó a

Ba. Ca Xiêng

Vie t Nam

Lao P DRQuang Bình

Hà Tĩnh

Bó Trach

Minh Hóa

Tuye n Hoa

Quang Trach

106°20'0"E

106°20'0"E

106°10'0"E

106°10'0"E

106°0'0"E

106°0'0"E

105°50'0"E

105°50'0"E

105°40'0"E

105°40'0"E

105°30'0"E

105°30'0"E

106°30'0"E

18°0'0"N

18°0'0"N

17°50'0"N

17°50'0"N

17°40'0"N

17°40'0"N

17°30'0"N

17°30'0"N

VIETNAMNorth of Quang Binh P rovinceIm ag e ry analysis: 12 & 24 Octobe r 2016 | P u blish e d 22 Nove m be r 2016

Flood

FL20161109VNM

This map illustrates the satellite-detected surfacewaters extent and evolution in north of QuangBinh Province, Vietnam, as observed from theSentinel-1 images acquired on 12 and 24October 2016. Within the analysed area, anincrease of surface waters extent was observedfrom the 24 October 2016 image: ~4,400 ha ofsurface water were observed the 12 October2016 and reached ~6,400 ha the 24 October2016. All over the analysed zone, it correspondsto an evolution of about 45%. As example, in TienLang lake and dam an increase of water surfaceof 77 ha was observed corresponding to anevolution of ~70% by comparison to the watersurface detected on 12 October 2016. This is apreliminary analysis and has not yet beenvalidated in the field. Please send groundfeedback to UNITAR - UNOSAT.

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THAILAND

CHINAHanoi

Macao

Bangkok

Vientiane

Hong Kong

Phnom Penh

The depiction and use of boundaries, geographic names and related data shown here are not warranted to be error-free nor do they implyofficial endorsement or acceptance by the United Nations. UNOSAT is a program of the United Nations Institute for Training and Research(UNITAR), providing satellite imagery and related geographic information, research and analysis to UN humanitarian & developmentagencies & their implementing partners. This work by UNITAR-UNOSAT is licensed under a CC BY-NC 3.0

Sate llite Dete cte d Su rface Wate rs Exte ntand Evolu tion in North e rn Quang BinhP rovince

Satellite Data : Sentinel-1Imagery Dates: 12 October 2016 and 24 October 2016Resolution: 10 mCopyright: Copernicus 2014 / ESASource: ESA

Road Data : OpenStreetMap, GADMOther Data: USGS, UNCS, NASA, NGAAnalysis : UNITAR - UNOSATProduction: UNITAR - UNOSAT

!IMap Scale for A3: 1:50,000

Analysis conducted with ArcGIS v10.3

Coordinate System: WGS 1984 UTM zone 49NProjection: Transverse MercatorDatum: WGS 1984Units: Meter

ÆA

Map location

Le g e nd Tie n Lang LakeSe e inse t for close -u p vie w") Town / City

VillageHighway/Primary roadAnalysis extentInternational boundaryProvince boundaryDistrict boundarySatellite detected waters : 12 October 2016Satellite detected waters : 24 October 2016

TIEN LANG LAKE

Sate llite -dete cted su rface wate r e xte nt ofTie n Lang lake and dam incre ase d from ~105 h a to~182 h a, corre sponding to an e volu tionof abou t 70%.

Th e sate llite -dete cte d su rface wate r e xte nt ofDap Be Lake incre ase d from ~40 h a to~102 h a, corre sponding to an e volu tionof abou t 150%.