c h i n a - maps and data | unitarunosat-maps.web.cern.ch/unosat-maps/vn/fl20150730vnm/...t hed...

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BinhK ieu

Binh Hai

Bi GiangBi ConT hon

Bi Cho

BieuNghi

Cam Lo

Cam La

Phu X a

Phuc Le

Pha Le

Nhu YT rung

M y S onM y Dong

LuongX amLung

Bac

Lap Le

LacT hanh

Ha M oCong

Ha Lung

Ha Doan

Ha Doan

Gia Duc

Doan Le

DienCong

PhongCoc

Luu K he

Hung Hoc

Hai Y en

Dong Coc

Chap K he

NamPhap

Luc Hanh

K ieu S on

K huong LuHa T ay

Dong K he

Doan X a

La K he

K hoaiLac

DongLinh

X am Bo

Vi K he Vi Duong

T rungHanh

T huongDoan

QuynhBieu

Y en T riY en Hung

Y en Dong

U ong Bi

T uy Lac

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T rangK inh

T hai K he

QuynhLau

An K he106°51'0"E

106°51'0"E

106°48'0"E

106°48'0"E

106°45'0"E

106°45'0"E

106°42'0"E

21°3'0"N

21°3'0"N

21°0'0"N

21°0'0"N

20°57'0"N

20°57'0"N

20°54'0"N

20°54'0"N

20°51'0"N

20°51'0"N

S atellite Data (1) : ALOS -2 PALS AR -2Imagery Date: 31 July 2015R esolution: 6.25 mCopy right: JAX AS ource: JAX AS atellite Data (2) : ALOS -2 PALS AR -2Imagery Date: 19 June 2015R esolution: 6.25 mCopy right: JAX AS ource: JAX AR oad Data: OpenS treetM apOther Data: U S GS , U NCS , NAS A, NGAAnaly sis : U NITAR -U NOS ATProduction: U NITAR -U NOS ATAnaly sis conducted with ArcGIS v10.3Coordinate S y stem: W GS 1984 U T M Z one 46NProjection: T ransverse M ercatorDatum: W GS 1984U nits: M eterT he depiction and use of boundaries, geographicnames and related data shown here are notwarranted to be error-free nor do they imply officialendorsement or acceptance by the U nited Nations.U NOS AT is a program of the U nited Nations Institutefor T raining and R esearch (U NITAR ), providingsatellite imagery and related geographic information,research and analy sis to U N humanitarian anddevelopment agencies and their implementingpartners.T his work by U NITAR -U NOS AT is licensed under aCreative Commons Attribution-NonCommercial-S hareAlike 3.0 U nported License.

Contact Information: unosat@unitar.org24/7 Hotl ine: +41 76 487 4998

www.unitar.org/unosat

T his map provides an overview of satellite detectedwaters in S ong Lạch T ray delta near Hai Phong Cityin northern Vietnam. U NITAR -U NOS AT identified12,304 hectares of flood affected land within theanaly zed region. A total of 7 analy zed districts in theprovinces of Hai Phong and Quang Ninh wereimpacted by the floods. T he district of Y en Hung inQuang Ninh province was the worst affected with6,132 hectares of flooding, followed by T huy Nguy endistrict (2,671 ha) in Hai Phong province, and HoanhBo district (1,384 ha) in Quang Ninh province.Approximately 25 kilometers of roads were possiblyaffected by flood waters in the 7 analy zed districts.Of this total, roughly 9.2 kilometers were identified inthe district of T huy Nguy en, located in Hai Phongprovince. It is likely that flood waters have beensy stematically underestimated along highlyvegetated areas along main river banks, and withinbuilt-up urban areas because of the specialcharacteristics of the satellite data used. T his is apreliminary analy sis and has not y et been validatedin the field. Please send ground feedback toU NITAR -U NOS AT.

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VientianeNaypyidaw

BangkokPhnomPenh

Hanoi

Analysis with ALOS-2 PALSAR-2 Satellite Data Acquired on 31 July 2015 and 19 June 2015

MapExtentF

Production Date:8/25/2015Version 2.0

Glide Number:FL-2015-000098-VNM!!,Flooding

FLOOD WATER EXTENT ANALYSIS(Satellite-Based Classification)Probable S tanding Flood W aters:[ALOS PALS AR : 31 July 2015]Pre-Crisis W ater Extent [ALOS PALS AR : 19 June 2015]

!I 0 0.5 1 1.5 2K m

Map Scale for A3: 1:80,000

Disaster coverage by theInternational Charter 'Space and

Major Disasters'. For moreinformation on the Charter, which

is about assisting the disasterrelief organizations with multi-

satellite data and information, visitwww.disasterscharter.org

LEGENDPopulated AreaHighway / Primary R oad

S econdary R oad

Local / U rban R oadFlood Affected R oadDistrict Boundary

Hải Phòng

Quảng Ninh

Cát HảiHải AnNgô QuyềnThủy Nguyên*Hoành Bồ*Uông Bí*Yên Hưng

46291729267113847096132

100%100%100%54%24%66%100%

4.896.950.949.211.920.271.17

Province District Land (ha) Roads (km) % Analyzed

*Denotes a partially analy zed area

Flooded Areas & Possibly Affected Roads in Analyzed Region C H I N A