Crustal Dynamics Data Information System (CDDIS)

Crustal Dynamics Data Information System

The CDDIS is NASA’s data archive and information service supporting the international space geodesy community. CDDIS is part of the Solar System Exploration Division at NASA Goddard Space Flight Center in Greenbelt, MD. CDDIS serves as one of the core components for the geometric services established under the International Association of Geodesy (IAG), an organization that promotes scientific cooperation and research in geodesy on a global scale. CDDIS provides continuous, long term, public access to the data and derived products from a global network of observing stations equipped with one or more of the following measurement techniques:

The figure illustrates the global networks of geodetic sites which consist of 440 GNSS receivers, 44 laser ranging sites, 45 VLBI stations, and 58 DORIS sites and provides the means of determining an accurate and global Terrestrial Reference Frame. Courtesy: CDDIS

Contact Information

Carey Noll, DAAC Manager
Patrick Michael, Ph.D, Deputy DAAC Manager
Maurice Dube, DAAC Operations Lead
James Roark, DAAC Systems Engineer
Lori Tyahla, User Services

NASA GSFC
Code 690.1
Greenbelt, MD 20771
URL: http://cddis.gsfc.nasa.gov

FTP: ftp://cddis.gsfc.nasa.gov

To learn more about other DAACs, click HERE.

Discover

cddis2 Download Data

cddis1a Learn About Data

cddis5 View Reports

cddis1 Explore Techniques

Geodesy Data

CDDIS also provides products derived from these data required for a variety of science observations, including the determination of a global terrestrial reference frame and geodetic studies in plate tectonics, earthquake displacements, volcano monitoring, Earth orientation, and atmospheric angular momentum, among others.

Users can access the data and products available through the CDDIS via anonymous FTP.

Earthdata