CDDIS: NASA's Archive of Space Geodesy Data
CDDIS SESES MEaSUREs products weekly displacement grids time series

doi: 10.5067/GNSS/gnss_measures_displacement_fields_001

Data Center Citation

Noll, Carey E., The Crustal Dynamics Data Information System: A resource to support scientific analysis using space geodesy, Advances in Space Research, Volume 45, Issue 12, 15 June 2010, Pages 1421-1440, ISSN 0273-1177, http://dx.doi.org/10.1016/j.asr.2010.01.018.

Data Citation

ESESES MEaSUREs products weekly displacement grids time series [online]. Available from the NASA Crustal Dynamics Data Information System DAAC, Greenbelt, MD, USA at: http://dx.doi.org/10.5067/GNSS/gnss_measures_displacement_fields_001, Accessed [[enter user data access date]].

Other standard citation formats may be used for this data set and can be found at the DOI Citation Formatter website.

More information about CDDIS data citations and acknowledgments is available.

Summary

  • Name: CDDIS ESESES MEaSUREs products weekly displacement grids time series available from the Crustal Dynamics Data Information System (CDDIS)
  • Format: netCDF, PDF, MP4
  • Spatial Coverage: Western USA
  • Temporal Coverage: 1999-present
  • Temporal Resolution: Weekly
  • File Size: compressed file: 11MB; individual file sizes vary
  • Platforms: Multiple GNSS

Description*

Making Earth System Data Records for Use in Research Environments (MEaSUREs) empowers the research community to participate in developing and generating data products that complement and augment NASA produced and distributed Earth science data products. NASA's Enhanced Solid Earth Science Earth Science Data Record (ESDR) System (ESESES) continues and extends mature geodetic data product generation and archival as part of the MEaSUREs SESES project providing new, multi-decade, calibrated and validated geodetic-derived ESDRs obtained by the Scripps Institution of Oceanography (SIO) and Jet Propulsion Laboratory/California Institute of Technology (JPL/Caltech). These data-derived products include continuous multi-year high-rate GNSS, seismogeodetic, and meteorological time series, a catalog of transient deformation in tectonically active areas known for aseismic motion such as ETS with focus in Cascadia, and continuous estimation and cataloging of total near-surface water content derived from continuous GNSS time series over the continental U.S.

The Level 2 displacement time series provides a record of horizontal and vertical transient motions over and above secular, long-term processes such as interseismic deformation, represented by station velocities. The transient motions include coseismic and postseismic motions from earthquakes, magmatic deformation at Long Valley Caldera (e.g., Liu et al., 2011), subsidence in California's San Joaquin Valley (Argus et al., 2017), and episodic tremor and slip (ETS) in Cascadia (Rogers and Dragert, 2003). The displacement grids and auxiliary files (vector, residuals, transients, movies) are created from the Level 2 daily displacement time series.

* Reference: Klein E, Bock Y, Xu X, et al. Transient Deformation in California From Two Decades of GPS Displacements: Implications for a Three-Dimensional Kinematic Reference Frame. J Geophys Res Solid Earth. 2019;124(11):12189-12223. doi:https://doi.org/10.1029/2018JB017201

Data Access

The CDDIS ESESES MEaSUREs products weekly displacement grids time series are online:

Append the following filenames according to the table below

DisplacementGrids_YYYYMMDD.tar.gz

Code Meaning
YYYY4-digit year
MM 2-digit month
DD 2-digit day
.tar Unix tar file
.gz gzipped file

Documentation

http://cddis.nasa.gov/Data_and_Derived_Products/GNSS/MEaSUREs_products.html

See the ESESES Algorithm Theoretical Basis Document (ATBD) for detailed descriptions of the products: http://garner.ucsd.edu/pub/measuresESESES_products/ATBD/ESESES-ATBD.pdf