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Sentinel-1 Interferograms and time series collection on Afar 2014-2021

This project aims to characterize the spatial and temporal distribution of the deformation in the region of the Afar depression. The aim is to better understand large-scale tectonics (localization of divergent borders, kinematics of the triple point), but also the dynamics of volcanic, seismic and aseismic events, and the mechanics of active faults. The issue of gravity hazard will also be addressed.


Three types of products are made available for each orbit portion processed (see <a href=" https://formater.pages.in2p3.fr/flatsim/ " target="_blank"> detailed description </a> )

- "INTERFEROGRAM": this brings together the differential interferograms, wound and unwound, in radar or terrain geometry, filtered or not, at different resolutions, as well as the atmospheric correction maps used and spatial coherence for each interferogram.

- "TIMESERIES": this includes maps of movement in time series and average speed, according to the satellite line of sight (LOS), and quality indices of time series processing.

- "AUXILIARYDATA": this directory contains maps indicating the LOS vector, the DTM in radar geometry, at different resolutions, the radar-field geometry transcoding tables, and temporal coherence, as well as a set of figures and parameter files specific to the processing of the time series.

Simple

Date (Publication)
2021-10-11
Citation identifier
urn:ogc:def:EOP:CNES::AFAR:

Purpose

This project aims to characterize the spatial and temporal distribution of the deformation in the region of the Afar depression. The aim is to better understand large-scale tectonics (localization of divergent borders, kinematics of the triple point), but also the dynamics of volcanic, seismic and aseismic events, and the mechanics of active faults. The issue of gravity hazard will also be addressed.

Status
Completed
Distributor
  CNES CNES CNES - ( )
Point of contact
  FormaTerre -
Maintenance and update frequency
As needed
Theme
  • InSar

  • Deformation

  • interferogram

  • Landslides

FormaTerre | Platform ontology
  • SENTINEL-1
FormaTerre | Distributor
  • CNES
FormaTerre | Solid Earth Discipline ontology
  • Tectonics
  • Volcanology
Continents, countries, sea regions of the world.
  • Ethiopia
Access constraints
Restricted
Use constraints
Other restrictions
Use constraints
License
Other constraints

How to cite: "FormaTerre (2020): FLATSIM Data Products. CNES. (Dataset), doi: https://www.doi.org/10.24400/253171/FLATSIM2020 "

Other constraints

Licence: https://creativecommons.org/licenses/by-nc/4.0/

Other constraints

FAIR data, in validation phase, accessible only to the FormaTerre community

Spatial representation type
Grid
Distance
160  m
Language

eng

Character set
UTF8
Topic category
  • Geoscientific information
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S
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W
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Begin date
2014-10-01
End date
2021-05-01
Reference system identifier
WGS 1984
Distribution format
  • GEOTIFF ( )

  • CSV ( )

  CNES CNES CNES -
OnLine resource
DOI 10.24400/253171/FLATSIM2020 ( DOI )

Landing page produits FLATSIM doi:10.24400/253171/FLATSIM2020

OnLine resource
Thollard & al. 2021 ( WWW:LINK-1.0-http--related )

Thollard, F., Clesse, D., Doin, M.-P., Donadieu, J., Durand, P., Grandin, R., Lasserre, C., Laurent, C., Deschamps-Ostanciaux, E, Pathier, E., Pointal, E, Proy, C., Specht, B. (2021). FLATSIM: The FormaTerre LArge-Scale Multi-Temporal Sentinel-1 InterferoMetry Service, Remote Sens. 13 (18), 3734. doi:10.3390/rs13183734

OnLine resource
Grandin. 2015 ( WWW:LINK-1.0-http--related )

Grandin R. (2015). Interferometric Processing of SLC Sentinel-1 TOPS Data. In Proceedings of FRINGE’15: Advances in the Science and Applications of SAR Interferometry and Sentinel-1 InSAR Workshop, Frascati, Italy, 23-27 March 2015, ESA Publication SP-731. doi:10.5270/Fringe2015.116

OnLine resource
Doin & al. 2011 ( WWW:LINK-1.0-http--related )

Doin, M.-P., Lodge, F., Guillaso, S., Jolivet, R., Lasserre, C., Ducret, G., Grandin, R., Pathier, E., Pinel, V. (2011). Presentation of the small baseline NSBAS processing chain on a case example: The Etna deformation monitoring from 2003 to 2010 using Envisat data. In Proceedings of FRINGE 2011 ESA Workshop, Frascati, Italy,19–23 September 2011, ESA Publication SP-697.

OnLine resource
Product documentation ( WWW:LINK-1.0-http--samples )
OnLine resource
API opensearch Flatsim ( OpenSearch )

search=free;view=FLATSIM_AFAR_V;download=FLATSIM_AFAR_VD

Hierarchy level
Series

Extent

No information provided.
Statement

These collections of interferograms and displacement time series are produced by CNES as part of the FLATSIM service. This service is developed in collaboration with the ForM @ Ter Data and Services pole and the ISTerre, LGL-TPE and IPGP laboratories. The radar images used come from the TOPSAR Sentinel-1 archive (Copernicus data). The calculations are made from the NSBAS interferometric processing chain

File identifier
d313f77c-76f9-45e8-8c6d-c41e8d129f9f XML
Metadata language
Français
Character set
UTF8
Hierarchy level
Series
Date stamp
2024-05-03T10:27:00
Metadata standard name

ISO 19115:2003/19139

Metadata standard version

1.0

Point of contact
  FormaTerre - ( )
 
 

Overviews

overview
Google earth view

Spatial extent

N
S
E
W
thumbnail


Keywords

Deformation InSar Landslides interferogram

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Associated resources

Not available


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