Results 171 to 180 of about 1,159,554 (218)

Stream morphometry analysis by airborne laser altimetry

2014 IEEE Geoscience and Remote Sensing Symposium, 2014
The river characteristics have played an important role for hydrological models. Sediments supplied from landslides may affect the river channel morphological changes in different reaches or magnitude; namely, the riverbed morphology can be related to disaster events.
Ming-Chee Wu, Mon-Shieh Yang, Jin-King Liu   +2 more
openaire   +2 more sources

Lake gravity anomalies from ICESat-2 laser altimetry and geodetic radar altimetry

Advances in Space Research
In the current most accepted global geopotential model, EGM2008, there are often data gaps in the source data used to compute the model over inland water. As a result, EGM2008 may be less reliable over lakes. Satellite altimetry has the  potential to estimate gravity anomalies and update EGM2008 over lakes.
Karina Nielsen, Ole Baltazar Andersen
exaly   +2 more sources

Lunar laser altimetry in the SELENE project

Advances in Space Research, 1999
Abstract Lunar laser altimeter (LALT) has been developed for the Japanese lunar exploration SELENE (SELenological and ENgineering Explorer) in 2003. Lunar laser altimetry and two other selenodetic missions are put together and called RISE (Researches In SElenodesy) project that has been developed mainly by National Astronomical Observatory of Japan ...
H. Araki, M. Ooe, T. Tsubokawa, N. Kawano, H. Hanada, K. Heki   +5 more
openaire   +1 more source

Laser Altimetry in the Selene Project

1997
Laser altimetry of the Moon is now under investigation as a part of the RISE project in the Moon-Orbiting exploration (SELENE; SELenological and ENgineering Explorer) by Japan in 2002–2003. Main objective of this measurement is to construct a precise and global topography of the moon with the 5m vertical resolution and with a center-to-center along ...
Hiroshi Araki, Masatsugu Ooe, Tsuneya Tsubokawa, Seiitsu Tsuruta, Hideo Hanada, Kousuke Heki, Nobuyuki Kawano, Ryo-ichi Kouda, Jyun-ya Terasono, Noriyuki Namiki, Hiromichi Maruyama   +10 more
openaire   +1 more source

Slicer Laser Altimetry In The Eastern Caribbean

Surveys in Geophysics, 2001
Data acquired by the airborne Scanning Lidar Imager of Canopies by EchoRecovery (SLICER) laser altimeter provided high-resolution digital topographicdata over Puerto Rico, the Dominican Republic and several of the Lesser AntillesIslands. The instrument was developed by the NASA-Goddard Space Flight Center.It has the capability of multibeam resolution ...
P. Jansma, G. Mattioli, A. Matias
openaire   +1 more source

Spaceborne laser altimetry

SPIE Proceedings, 1997
Space-based laser altimeters are effective in providing topographic measurements critically important to the understanding of the formation and early evolution of planetary bodies. Using laser altimetry data, topographic grids can be produced that provide significant insight into the shape, internal structure and evolution of the subject body.
openaire   +1 more source

Airborne laser altimetry in the Ionian Sea, Greece

Global and Planetary Change, 2002
Airborne laser techniques have evolved during the last years and have been tested in several pilot projects which cover a wide range of geodetic applications. In this project, airborne laser altimetry was used to determine the sea level in coastal areas of Greece, and to connect satellite radar altimetry results over the deep sea with tide gauge ...
Alain Geiger, G Veis
exaly   +2 more sources

The Geoscience Laser Altimetry/Ranging System

IEEE Transactions on Geoscience and Remote Sensing, 1987
The Geoscience Laser Altimetry/Ranging System (GLARS) is a planned highly precise laser distance-measuring system to be used for geoscience measurements requiring extremely accurate geodetic observations from a space platform. The system combines the attributes of a pointable laser ranging system making observations to retroreflectors placed on the ...
Steven Cohen, John Degnan, Jack Bufton, James Garvin, James Abshire   +4 more
openaire   +1 more source

DEM Control in Arctic Alaska With ICESat Laser Altimetry

IEEE Transactions on Geoscience and Remote Sensing, 2007
Use of Ice, Cloud, and land Elevation Satellite (ICESat) laser altimetry is demonstrated for control of a digital elevation model (DEM) that is synthesized from repeat-pass ERS-1 and 2 synthetic aperture radar (SAR) imagery using interferomet-ric SAR (InSAR).
Donald K. Atwood, Richard M. Guritz, Reginald R. Muskett, Craig S. Lingle, Jeanne Sauber, Jeffrey T. Freymueller   +5 more
openaire   +2 more sources

Mapping the topography of Mercury with MESSENGER laser altimetry

SPIE Newsroom, 2012
The Mercury Laser Altimeter onboard MESSENGER involves unique design elements that deal with the challenges of being in orbit around Mercury. The Mercury Laser Altimeter (MLA) is one of seven instruments on NASA's MErcury Surface, Space ENvironment, GEochemistry, and Ranging (MESSENGER) spacecraft.
Sun, Xiaoli, Cavanaugh, John, Neumann, Gregory A, Zuber, Maria, Smith, David Edmund   +4 more
openaire   +3 more sources