Results 181 to 190 of about 4,395 (206)

ICESat-2 laser technology development

SPIE Proceedings, 2013
A number of ICESat-2 system requirements drove the technology evolution and the system architecture for the laser transmitter Fibertek has developed for the mission.. These requirements include the laser wall plug efficiency, laser reliability, high PRF (10kHz), short-pulse (
Ryan Edwards, Nick W. Sawruk, Floyd E. Hovis, Patrick Burns, Theodore Wysocki, Joe Rudd, Brooke Walters, Elias Fakhoury, Vincent Prisciandaro   +8 more
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ICESat-2 ATLAS telescope testing

2015 IEEE Aerospace Conference, 2015
Many lessons were learned in the comprehensive testing of the one meter Beryllium flight telescope for the ICESat-2 mission. This paper will focus on testing areas of encircled energy analysis, plate scale measurements, and boresight alignment for alignment of fiber optic cables.
John Hagopian, Tyler Evans, Matt Bolcar, Bente Eegholm, Erich De Leon, Patrick Thompson, David Vaughnn   +6 more
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ICESat-2 laser Nd:YVO4 amplifier

Components and Packaging for Laser Systems IV, 2018
We report on the cause and corrective actions of three amplifier crystal fractures in the space-qualified laser systems used in NASA Goddard Space Flight Center’s (GSFC) Ice, Cloud, and Land Elevation Satellite-2 (ICESat-2). The ICESat-2 lasers each contain three end-pumped Nd:YVOO4 amplifier stages.
Eric H. Baker, Babak Farrokh, Jonathan A. Salem, John F. Cavanaugh, Liqin L. Wang, Charles C. He, Michael Bay, Elisavet Troupaki, Mark S. Pronko, John Iskander, Elias Fakhoury, Greg Witt, Nigel Martin, Viatcheslav Litvinovitch, Ryan E. Edwards, Patrick M. Burns, Nicholas Sawruk   +16 more
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ICESAT-2 altimetry for coastal MSS improvement

2023
Radar altimeters have traditioally been used for the determination of the mean sea surface to centimeter accuracy. However close to the coast the MSS degrade because of the lack of valid altimetry observations and because of the land contamination and the altimeter footprint size.
Vrettou, Artemis, Andersen, Ole Baltazar
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ICESat-2 Precision Orbit Determination Performance

2020
<p>The Ice, Cloud, and land Elevation Satellite-2 (ICESat-2) mission launched on September 15<sup>th</sup>, 2018, with the primary goal of measuring ice sheet topographic change. The fundamental measurement used to achieve mission science objectives is the geolocation of individual photon bounce points.
Taylor Thomas, Scott Luthcke, Teresa Pennington, Joseph Nicholas, David Rowlands, Timothy Rebold   +5 more
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The ICESat-2 Laser Altimetry Mission

Proceedings of the IEEE, 2010
Satellite and aircraft observations have revealed that remarkable changes in the Earth's polar ice cover have occurred in the last decade. The impacts of these changes, which include dramatic ice loss from ice sheets and rapid declines in Arctic sea ice, could be quite large in terms of sea level rise and global climate.
Waleed Abdalati, H. Jay Zwally, Robert Bindschadler, Bea Csatho, Sinead Louise Farrell, Helen Amanda Fricker, David Harding, Ronald Kwok, Michael Lefsky, Thorsten Markus, Alexander Marshak, Thomas Neumann, Stephen Palm, Bob Schutz, Ben Smith, James Spinhirne, Charles Webb   +16 more
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ICESat-2 mission overview and early performance

Sensors, Systems, and Next-Generation Satellites XXIII, 2019
The Ice, Cloud, and land Elevation Satellite – 2 (ICESat-2) satellite mission launched in September 2018 from Vandenberg Air Force Base in California USA. The sole instrument is the photon-counting lidar Advanced Topographic Laser Altimeter System (ATLAS).
Anthony J. Martino, Thomas A. Neumann, Nathan T. Kurtz, Douglas McLennan   +3 more
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ICESat-2 laser technology readiness level evolution

SPIE Proceedings, 2015
We report on the completion of the space qualification testing program for NASA Goddard Space Flight Center’s (GSFC) Ice, Cloud, and Land Elevation Satellite 2 (ICESat-2) program. This paper describes the final performance results of the fully integrated (laser and electronics) flight laser system with an emphasis on the system design evolution from a ...
Nicholas W. Sawruk, Patrick M. Burns, Ryan E. Edwards, Theodore Wysocki, Andre VanTuijl, Viatcheslav Litvinovitch, Edward Sullivan, Floyd E. Hovis   +7 more
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Ocean Subsurface Study from ICESat-2 Mission

2019 Photonics & Electromagnetics Research Symposium - Fall (PIERS - Fall), 2019
NASA has launched the ICESat-2 satellite in September 2018 with the primary purpose of monitoring changes in the elevation of ice at high latitudes. Fortunately, additional and unrealized information from the penetration of laser light below the ocean’s surface offers a new and exciting opportunity to study ocean biology over the open sea water and ...
Xiaomei Lu, Yongxiang Hu, Yuekui Yang
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ICESat-2 Data Comparison User's Guide

Describes methods for making comparisons of Release 007 ICESat-2 data products with results and data from other satellite missions. Included are considerations regarding reference systems, geophysical correction modeling, and underlying assumptions.
Robbins, John, Sutterley, Tyler, Neumann, Thomas, Kurtz, Nathan, Bagnardi, Marco, Brunt, Kelly, Gibbons, Aimée, Hancock, David, Lee, Jeff, Luthcke, Scott   +9 more
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