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  • SLR
  • VLBI
  • DORIS
Learn about Techniques
22 February 2018

EOSDIS/Earthdata recently profiled a user of CDDIS data. Dr. Kristine M. Larson explores how a technology such as GPS can be used for applications beyond its original intent.

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EOSDIS awarded the 2015 Pecora award
14 February 2018

EOSDIS was awarded the 2015 Pecora award. This prestigious award is given to groups that make outstanding contributions toward understanding the Earth by means of remote sensing. The citation highlights the EOSDIS accomplishments in providing an open archive system for a global user community. CDDIS is one of twelve DAACs supporting EOSDIS efforts through the Earth Science Data and Information System (ESDIS) project. Carey Noll, CDDIS Manager, accepted their award certificate from Andy Mitchell, ESDIS Project Manager, and Jeanne Behnke, Deputy Project Manager/Operations, at the 2018 DAAC Managers Meeting.


02 February 2018

The Space Environment Research Centre (SERC) and the International Laser Ranging Service (ILRS) are pleased to announce that the 21st International Workshop on Laser Ranging will be held in Canberra, Australia during the week of November 04-09, 2018 at the John Curtin School of Medical Research (Australian National University) and Mount Stromlo. The first circular has been released.


CDDIS has another year of record growth in 2017
18 January 2018

The Crustal Dynamics Data Information System (CDDIS) had another year of record growth with 1.7B file downloads (206TB) of data transferred to over 260K unique users in 2017. EOSDIS (Earth Observing System Data and Information System) reports that CDDIS led the twelve Distributed Active Archive (DAACs) in the number of files downloaded last year. Furthermore, CDDIS GNSS (Global Navigation Satellite System) data/products accounted for three of the top data sets distributed by EOSDIS.

In December, 2016, the CDDIS underwent an extensive system upgrade and developed a more streamlined process for archive operations.

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Weekly GNSS data holdings (daily, hourly, high-rate)

Weekly SLR normal point pass segment totals (by satellite, LAGEOS and ETALON only)

Archive Explorer Tool Search the CDDIS data archive for SLR, DORIS, or GNSS data.


Site Log Viewer Tool Browse SLR, DORIS, or GNSS site logs by site or across the network.


Site Selection Tool Search and discover CDDIS data holdings using the GSAC-WS.