Valle d'Aosta Region SAR ground deformation time series from Envisat ASAR satellite images

The SAR ground deformation time series relevant to Valle d’Aosta region include deformation data obtained from ASAR-Envisat satellite acquisitions (images available in the framework of Category-1A project, part of the ESA Geohazard Supersites initiative), and elaborated by the ESA’s G-POD service with the SBAS technique. In particular, the analysis provided 23634 measure points, for the observed period from April 2004 to November 2010.

The analysis provided for each SBAS targets:

- East and North UTM WGS84 coordinates (m);

- Temporal interferometric coherence [CohT];

- Deformation velocity (cm/year) [Vel.];

- Azimuth and Range coordinates [Az./Rg.];

- Latitude and Longitude coordinates (deg.) [Lat./Lon];

- Topography (m) [RT];

- Deformation Data (cm), related to the acquisition dates of the exploited SAR images.

The dataset of the exploited images are expressed as: [year+((month-1)*30+day)/365].

The SBAS results, relevant to the entire frame (normally around 100x100 km), have an accuracy of 1 mm/yr concerning the mean velocity measurements, and 5 mm for the deformation measurements [Casu et al., 2006]

The deformation time series present a monthly temporal sampling, and provide long time series of deformation, allowing to follow the evolution of surface displacements over time.

 
Citation proposal
Martina Cignetti (Italian National Research Council (CNR)) - Andrea Manconi (Italian National Research Council (CNR)) (2015) . Valle d'Aosta Region SAR ground deformation time series from Envisat ASAR satellite images. https://geoportal.mountaingenius.org/geonetwork/srv/api/records/5df1b11b-d514-4814-9b31-eebdbc582a38
 

INSPIRE

Identification

File identifier
5df1b11b-d514-4814-9b31-eebdbc582a38   XML
Online resource
Protocol
OGC:WMS-1.1.1-http-get-map
Protocol
GLG:KML-2.0-http-get-map
Protocol
OGC:WMS-1.1.1-http-get-map
Protocol
GLG:KML-2.0-http-get-map
Resource identifier
Metadata language
English
Spatial representation type
Vector
Encoding
Projection
code
WGS 1984
 

Classification of data and services

Topic category
  • Geoscientific information
 

Classification of data and services

Coupled resource
Coupled resource
 
 

Classification of data and services

Coupled resource
Coupled resource
 
 

Keywords

Other keywords
Keywords ( Theme )
  • NEXTDATA
Keywords ( Theme )
  • HAMMER project , Landslide , DInSAR analysis , ASAR-Envisat satellite , Ground deformation time series
Keywords ( Place )
  • Valle d'Aosta Region , Northwest Italy
Keywords ( Theme )
  • CNR IRPI
Keywords ( Theme )
  • CNR IREA
 
 

Geographic coverage

N
S
E
W


 

Temporal reference

Temporal extent
Temporal extent
Date ( Publication )
2015-11-20
 

Quality and validity

Lineage
 

Conformity

Conformity
Conformity
 

Conformity

Conformity
Conformity
 

Restrictions on access and use

Access constraints
 

Restrictions on access and use

 

Responsible organization (s)

Contact for the resource
Organisation name
Italian National Research Council (CNR)
Email
martina.cignetti@irpi.cnr.it
Organisation name
Italian National Research Council (CNR)
Email
andrea.manconi@irpi.cnr.it
 

Responsible organization (s)

Contact for the resource
Organisation name
Italian National Research Council (CNR)
Email
martina.cignetti@irpi.cnr.it
Organisation name
Italian National Research Council (CNR)
Email
andrea.manconi@irpi.cnr.it
 

Metadata information

Contact for the metadata
Organisation name
Italian National Reserach Council (CNR)
Email
manunta.m@irea.cnr.it
Organisation name
Italian National Reserach Council (CNR)
Email
francesca.ardizzone@irpi.cnr.it
Date stamp
2017-05-12T16:05:14
Metadata language
English
Character set
UTF8
 
 

SDS

Conformance class 1: invocable

Access Point URL
Endpoint URL
Technical specification
 

Conformance class 2: interoperable

Coordinate reference system
 
Quality of Service
 
Access constraints
Limitation
 
Use constraints
Limitation
 
Responsible custodian
Contact for the resource
 
 

Conformance class 3: harmonized

 
 

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