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!I
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
T rungBan
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: [email protected]/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