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FEATURED STORY

FEATURED STORY

FEATURED STORY

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Laboratory News

Shortest Day Gets Attention

08.10.2022
Stephen Merkowitz (61A) was interviewed by the Associated Press for an article about the recent shortest length of day on record. Measurements of the Earth’s length of day are performed daily by the Space Geodesy Project as part of NASA’s participation in the National Earth Orientation Service.

NASA GLOBE Land Cover Challenge 2022: Land Cover in a Changing Climate

07.26.2022
The Global Learning and Observations to Benefit the Environment (GLOBE) Program invites you to take part in our upcoming Land Cover Challenge: “Land Cover in a Changing Climate.”

The photos you take using The GLOBE Program’s GLOBE Observer app document the current land cover and may also show evidence of land cover or land use change in the area. We especially encourage you to look for places you know have changed (or where you know change is coming), and put any information about the reasons or timing for that change in the field notes section. While existing land cover databases (such as the 50-year record from the Landsat satellite) may be able to indicate where change is happening, they don’t always include the reasons why those changes occurred, so any local, on-the-ground knowledge you share with us can be especially helpful.

Loomis Recognized for Excellence

07.08.2022
Bryant Loomis (61A) was awarded the AGU 2021 Editor’s Citation for Excellence in Refereeing for outstanding service to the authors and readers of JGR: Solid Earth.
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Overview

The laboratory performs broad research, in the areas of Earth time variable and static geopotential and geomagnetic fields, Earth orientation, surface deformation, characterization and change, tides, land ice mass evolution, global and regional sea level, and airborne and spaceborne laser altimetry. The laboratory also supports many NASA missions in fundamental and core capabilities including satellite radar and laser altimetry precise positioning, pointing, ranging, timing, geolocation and calibration and validation. The laboratory is a leader in the design, development, implementation and application of airborne and spaceborne geodetic laser altimeter technology and instruments including NASA’s Land, Vegetation, and Ice Sensor (LVIS) and the Global Ecosystem Dynamics Investigation Lidar (GEDI). The laboratory is the home of the Space Geodesy Project which encompasses the management, development, operation and maintenance of NASA’s Space Geodetic Network that is comprised of the four major space geodetic observing systems: Very Long Baseline Interferometry (VLBI), Satellite Laser Ranging (SLR), Global Navigation Satellite System (GNSS), and the Doppler Orbitography and Radio-positioning by integrated Satellite (DORIS) system. It is also home to the Crustal Dynamics Data Information System dedicated to the archive and distribution of space geodesy related data sets; as well as the home to GEODYN, NASA’s state-of-the-art geodetic parameter estimation and precision orbit determination system.

For further information, data, research, and other resources, see Geodesy and Geophysics Projects.

Contact Us

Dr. Bryant D. Loomis
301.614.5590
Chief [61A]
Evan Derek Hoffman
301.286.1394

General inquiries about the scientific programs at NASA's Goddard Space Flight Center may be directed to the Center Office of Communications at 1.301.286.8955.

                                                                                                                                                                                        
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