ground subsidence analyses, mekong delta, vietnam · full color a1, high resolution (300 dpi)...
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An ThạnhTrung
Hòa An
Hòa Bình
Bình Đức
Bình Khánh
Đông Xuyên
Mỹ Bình
Mỹ Hòa
Mỹ Hoà Hưng
Mỹ KhánhMỹ Long
Mỹ Phước
Mỹ Quý
Mỹ Thạnh
Mỹ Thới
Mỹ Xuyên
Phú Hoà
Phú Thuận
Bình Thà nh
Bình Thà nh
Source: Esri, DigitalGlobe, GeoEye, Earthstar Geographics, CNES/Airbus DS, USDA, USGS, AeroGRID, IGN, and the GIS User Community
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01 Long Xuye nA1
02 Rach GiaA2
03 Ca MauA3
Ho ChiMinh City
AOI 01 Long Xuye n - Ove rvie w A1
Glide Number: (N/A)
Activation ID: EMSN-057Product N.: Product 1-2017, v2, English
Cartographic Inform ation
Le ge nd
Map Inform ationThe EMSN-057 service provides geospatial information facilitating assessment of drivers ofground subsidence and supporting analysis of relation between detected ground subsidenceand land use changes in Ca Mau, Long Xuyen and Rach Gia areas in the Mekong delta,Vietnam.Primary objective of the service is provision of spatially and temporally consistent, dense andsynoptic results giving insight on distribution and variance of subsidence phenomena inspace and its dynamics in time. Persistent scatterers interferometry (PSI) techniquemeasuring ground deformations from stacks of archive SAR imagery (Sentinel-1 andTerraSAR-X) was utilized to estimate displacements caused by ground subsidence in datawith synoptic spatial coverage and considerable accuracy.The core user of the map is Deutsche Gesellschaft für Internationale Zusammenarbeit (GIZ)and the national civil protection authoritiy Federal Office of Civil Protection and DisasterAssistance (BBK).
Map products are available in the Copernicus EMS Portal at the following URL:https://emergency.copernicus.eu/mapping/list-of-components/EMSN057.Delivery formats are GeoPDF and vectors.No restrictions on the publication of the mapping apply.All products are © of the European Union.
Map produced on 18/02/2019 by Indra Sistemas S.A. and Gisat s.r.o. under contract 259811with the European Commission. All products are © of the European Commission.Name of the release inspector (quality control): Indra Sistemas S.A.E-mail: [email protected]://emergency.copernicus.eu/mapping
This map shows annual ground subsidence displacements in vertical direction in AOI 01Long Xuyen.Product was interpolated from displacement values of persistent scatterer points detected byPSI technique from stack of archived satellite SAR images. Displacement values werederived from time series based on analysis of Sentinel-1 imagery acquired during 2017.It is accompanied by administrative boundaries to provide a geographical context.The estimated thematic accuracy of this product is 80% or better for results derived fromSentinel-1, as it is based on cross-validation with results from independent Sentinel-1satellite track.A wider area than the Area Of Interest provided has been analyzed. Results are available inthe EMSN-057 GeoDataBase.
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Grid: WGS 1984 Zone 48N map coordinate systemTick marks: WGS 84 geographical coordinate system ±0 0.35 0.70.175
Kilometers
The products elaborated in the framework of current mapping in Risk and Recovery modeactivation are realized to the best of our ability, optimising the available data and information.All geographic information has limitations due to scale, resolution, date and interpretation ofthe original data sources. No liability concerning the contents or the use thereof is assumedby the producer and by the European Union. The products are compliant with CopernicusEMS Risk and Recovery Product Portfolio specifications.
Disse m ination/Publication
Disclaim e r
Map Production
Contact
Data Source s
Boundarie sAOI EMSN057Admin. Boundary Level 1Admin. Boundary Level 2
Full color A1, high resolution (300 dpi)
V ie tnam
Ground subside nce analyse s,Me k ong Delta, V ie tnam
Pre-event Image layer: ESRI World Imagery Basemap.Raster layers: Persistent scatterers interferometry (PSI) technique from stacks of archivedsatellite SAR images. In this case Sentinel-1 (acquired during 2017, GSD 10m) providedunder COPERNICUS by the European Union and ESA.Inset maps: Administrative boundaries source is GADM.
Product 1Estim ate d Annual Subside nce Displace m e nt [cm ] 2017 (Se ntine l-1)
High : 5
Low : -5
Product 1: Estim ate d Annual Subside nce Displace m e nt –2017
South China Sea
EMSN - 057: AOI 01 Long Xuyen
Country
Event type
Vietnam
Ground subsidence analyses, Mekong DeltaEvent date 2006 - 2018
5 cm
- 5 cm
0