High-resolution rate maps from the Tajik basin and the Pamir

DOI

Interferometric East and Up rate maps based on time-series analysis of ~5 years of Sentinel-1 radar data provide an unprecedented spatial (~400 m) resolution of the recend surface deformation of the Tajik fold-and-thrust-belt and the greater Pamir area. Among other the data exhibit E-W shortening in the fold-thrust-belt, slip activity of the Babadag thrust fault and the Ilyak strike-slip fault, westward Pamir escape tectonics, halokinesis and near-surface, water-driven effects. Observations and methodology are discussed at length in Metzger et al., 2021 (under Review).

Pre-processed interferograms of 13 Sentinel-1 radar frames serve as the input data for a framewise small-baseline time-series analysis using the LiCSAR/LiCSBAS data processing chain (Lazecky et al., 2020, Morishita et al., 2020). The resulting rate maps in line-of-sight were first tied to the Eurasian-fixed reference frame spanned by available regional GNSS data. If data from two view directions were available, they were decomposed in east and up by fixing the north rates to the interpolated GNSS north rates (Ou, 2020).

The zip-folder contains 1) the framewise rates and uncertainties and corresponding line-of-sight (LOS) information, all labelled by frame numbers, 2) the interpolated north rates based on Eurasian-fixed GNSS and 3) the concatenated and decomposed east and up rates in a Eurasian-fixed reference frame. A GMT script (Wessel & Smith, 2013, v6.0.0) and corresponding Figures serve as an example on how to plot the data.

Identifier
DOI https://doi.org/10.5880/GFZ.4.1.2021.005
Related Identifier https://doi.org/10.3390/rs12030424
Related Identifier https://doi.org/10.3390/RS12152430
Related Identifier https://ora.ox.ac.uk/objects/uuid:139c5ffd-5f50-4ca8-b56f-39da3c91d914
Related Identifier https://doi.org/10.1002/2013EO450001
Related Identifier https://doi.org/10.1002/essoar.10507535.1
Metadata Access http://doidb.wdc-terra.org/oaip/oai?verb=GetRecord&metadataPrefix=oai_datacite&identifier=oai:doidb.wdc-terra.org:7230
Provenance
Creator Metzger, Sabrina ORCID logo; Lazecky, Milan ORCID logo; Maghsoudi, Yasser ORCID logo
Publisher GFZ Data Services
Contributor Metzger, Sabrina; Metzger
Publication Year 2021
Rights CC BY 4.0; http://creativecommons.org/licenses/by/4.0/
OpenAccess true
Contact Metzger, Sabrina (GFZ German Research Centre for Geosciences, Potsdam, Germany); Metzger (GFZ German Research Centre for Geosciences, Potsdam, Germany)
Representation
Resource Type Dataset
Discipline Geosciences
Spatial Coverage (66.500W, 35.000S, 74.500E, 41.000N)