Global Navigation Satellite System (GNSS) Troposphere Zenith Path Delay (ZPD) product (Version 1) from NASA CDDIS

Description

This derived product set consists of version 1 of the Global Navigation Satellite System Final Troposphere Zenith Path Delay (ZPD) Product (daily files by station) from the NASA Crustal Dynamics Data Information System (CDDIS). GNSS provide autonomous geo-spatial positioning with global coverage. GNSS data sets from ground receivers at the CDDIS consist primarily of the data from the U.S. Global Positioning System (GPS) and the Russian GLObal NAvigation Satellite System (GLONASS). Analysis Centers (ACs) of the International GNSS Service (IGS) retrieve GNSS data on regular schedules to produce troposphere ZPD estimates for stations of the IGS network. The primary troposphere products generated from ground-based GNSS data are estimates of total zenith path delay and north/east troposphere gradient. Ancillary measurements of surface pressure and temperature allow the extraction of precipitable water vapor from the total zenith path delay. The IGS Troposphere Analysis Center Coordinator (ACC) used these individual AC solutions to generate the official version 1 of the IGS troposphere ZPD estimates for many of the stations in the IGS network. The final products consisted of daily files containing data from each observing station. All ZPD solution files utilize the Solution INdependent EXchange format for combination of TROpospheric estimates (SINEX_TRO) and span 24 hours from 00:00 to 23:45 UTC. In late 2006, a new version of the troposphere combination has been generated by the IGS Troposphere Analysis Center Coordinator. More information about the new version can be found under collection CDDIS_GNSS_IGSTroposphereZPD_product.

Resources

Name Format Description Link
21 Search results for publications that cite this dataset by its DOI. https://scholar.google.com/scholar?q=10.5067%2FGNSS%2FGNSS_IGSTROPZPDV1_001
21 URL for retrieval of GNSS derived products through ftp ftp://cddis.nasa.gov/gnss/products
21 URL for more information about GNSS derived products https://cddis.nasa.gov/Data_and_Derived_Products/GNSS/GNSS_product_holdings.html
21 URL for more information about GNSS derived products http://dx.doi.org/10.5067/GNSS/GNSS_IGSTROPZPDV1_001

Tags

  • tectonics
  • gravity-gravitational-field
  • solid-earth
  • geodetics
  • earth-science

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