T
Thomas Neumann
Researcher at Goddard Space Flight Center
Publications - 154
Citations - 7022
Thomas Neumann is an academic researcher from Goddard Space Flight Center. The author has contributed to research in topics: Ice sheet & Sea ice. The author has an hindex of 41, co-authored 143 publications receiving 5188 citations. Previous affiliations of Thomas Neumann include University of Washington & University of Vermont.
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Journal ArticleDOI
The Ice, Cloud, and land Elevation Satellite-2 (ICESat-2): Science requirements, concept, and implementation
Thorsten Markus,Thomas Neumann,Anthony J. Martino,Waleed Abdalati,Kelly M. Brunt,Beata Csatho,Sinead L. Farrell,Helen A. Fricker,Alex S. Gardner,David J. Harding,Michael F. Jasinski,Ron Kwok,Lori A. Magruder,Dan Lubin,Scott B. Luthcke,James H. Morison,Ross Nelson,Amy L. Neuenschwander,Stephen P. Palm,Sorin C. Popescu,C. K. Shum,Bob E. Schutz,Benjamin Smith,Yuekui Yang,Yuekui Yang,Jay Zwally +25 more
TL;DR: The ICESat-2 mission is a follow-on to the ICES-1 mission with three pairs of beams, each pair separated by about 3 km cross-track with a pair spacing of 90 m as discussed by the authors.
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The ICESat-2 Laser Altimetry Mission
Waleed Abdalati,H. Jay Zwally,Robert Bindschadler,Bea Csatho,Sinead L. Farrell,Helen A. Fricker,David J. Harding,Ron Kwok,Michael A. Lefsky,Thorsten Markus,Alexander Marshak,Thomas Neumann,Stephen P. Palm,Bob E. Schutz,Ben Smith,James D. Spinhirne,C. E. Webb +16 more
TL;DR: NASA's Ice, Cloud and Land Elevation Satellite-2 (ICESat-2), currently planned for launch in 2015, is specifically intended to quantify the amount of change in ice sheets and sea ice and provide key insights into their behavior through the use of precise laser measurements of surface elevation.
Journal ArticleDOI
The Ice, Cloud, and Land Elevation Satellite – 2 mission: A global geolocated photon product derived from the Advanced Topographic Laser Altimeter System
Thomas Neumann,Anthony J. Martino,Thorsten Markus,Sungkoo Bae,Megan R. Bock,Anita C. Brenner,Kelly M. Brunt,Kelly M. Brunt,John F. Cavanaugh,Stanley T Fernandes,David W. Hancock,Kaitlin Harbeck,Jeffrey Lee,Nathan Kurtz,Philip J. Luers,Scott B. Luthcke,Lori A. Magruder,T. A. Pennington,Luis Ramos-Izquierdo,T. W. Rebold,Jonah Skoog,T. Thomas +21 more
TL;DR: The major components of the ICESat-2 observatory are presented, including the Global Positioning System, star trackers and inertial measurement unit, as well as the precise photon round-trip time of flight.
Journal ArticleDOI
Pervasive ice sheet mass loss reflects competing ocean and atmosphere processes.
Ben Smith,Helen A. Fricker,Alex S. Gardner,Brooke Medley,Johan Nilsson,Fernando S. Paolo,Nicholas Holschuh,Nicholas Holschuh,Susheel Adusumilli,Kelly M. Brunt,Bea Csatho,Kaitlin Harbeck,Thorsten Markus,Thomas Neumann,Matthew R. Siegfried,H. Jay Zwally,H. Jay Zwally +16 more
TL;DR: Unified estimates of grounded and floating ice mass change from 2003 to 2019 using NASA’s Ice, Cloud and land Elevation Satellite (ICESat) and ICESat-2 satellite laser altimetry reveal patterns likely linked to competing climate processes.
Journal ArticleDOI
Direct observations of evolving subglacial drainage beneath the Greenland Ice Sheet
Lauren C. Andrews,Ginny A. Catania,Matthew J. Hoffman,Jason Gulley,Martin P. Lüthi,Claudia Ryser,Robert L. Hawley,Thomas Neumann +7 more
TL;DR: The authors' simultaneous measurements of moulin and borehole hydraulic head and ice velocity in the Paakitsoq region of western Greenland show that decreasing trends in ice velocity during the latter part of the melt season cannot be explained by changes in the ability of mOUlin-connected channels to convey supraglacial melt, and suggest that decreasing late-season ice velocity may be caused by changesIn connectivity in unchannelized regions of the subglacial hydrologic system.