Results 51 to 60 of about 2,144 (170)

Avaliação dos dados laser scanner para determinar modelos de terreno em áreas cobertas por floresta ombrófila densa alterada na Amazônia [PDF]

, 2007
Tese (doutorado) - Universidade Federal de Santa Catarina, Centro Tecnológico. Programa de Pós-Graduação em Engenharia Civil.Em florestas, informações tridimensionais de terreno têm sido obtidas por sensores como os de radar, os fotogramétricos ou por ...
Vargas, Rosane Maciel de Araújo
core  

Alaska‐Yukon Glacier Depths From a Decade of Airborne Radar Sounding

Journal of Geophysical Research: Earth Surface, Volume 131, Issue 6, June 2026.
Abstract NASA's Operation IceBridge employed airborne radar sounders in Alaska and adjacent northwestern Canada between 2012 and 2021 to measure the thickness of the region's glaciers. Here we present the first comprehensive analysis of these data, analyzing ∼31,700 linear‐km of radar profile data to provide over 5,500 linear‐km of ice thickness and ...
B. S. Tober, M. S. Christoffersen, J. W. Holt, M. Truffer, C. F. Larsen   +4 more
wiley   +1 more source

Estimativa da altura da vegetação utilizando dados Airborne Laser Scanner [PDF]

, 2005
Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro Tecnológico. Programa de Pós-Graduação em Engenharia Civil.Esta pesquisa foi conduzida buscando estimar a vegetação uma altura, ou mais especificamente do estrato arbóreo, que contém
Alixandrini Junior, Mauro José
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The Decline of a Caldera‐Filling Glacier at Volcán Sollipulli, Chile

Journal of Geophysical Research: Earth Surface, Volume 131, Issue 6, June 2026.
Abstract Southern Andean glaciers have undergone fast retreat in recent decades. This results in reduced freshwater storage, contribution to sea‐level rise, and locally to the formation of glacial lakes, that may pose the risk of glacial lake outburst floods (GLOFs).
J. E. Arndt, M. Somos, S. Navas, D. Farías‐Barahona, A. Rivera, H. Xie, A. Fernández   +6 more
wiley   +1 more source

Proposta metodologica para confecção de base cartográfica a partir de dados oriundos do Sistema Laser Scanner [PDF]

, 2005
Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro Tecnológico. Programa de Pós-Graduação em Engenharia Civil.A presente pesquisa demonstra a metodologia para confecção de uma Base Cartográfica de grande escala, a partir de uma nova ...
Sloboda, Luana
core  

Terrestrial Analogs to Titan for Geophysical Research

Reviews of Geophysics, Volume 64, Issue 2, June 2026.
Abstract Saturn's moon Titan exhibits remarkable parallels to the Earth in many geophysical and geological processes not found elsewhere in the solar system at the present day. These include a nitrogen atmosphere with a condensible gas—methane—replacing the Earth's water, leading to an active meteorology with rainfall and surface manifestations ...
Conor A. Nixon, Samuel Birch, Audrey Chatain, Charles Cockell, Kendra K. Farnsworth, Peter M. Higgins, Stéphane Le Mouélic, Rosaly M. C. Lopes, Michael J. Malaska, Mohit Melwani Daswani, Kelly E. Miller, Catherine D. Neish, Olaf G. Podlaha, Jani Radebaugh, Lauren R. Schurmeier, Ashley Schoenfeld, Krista M. Soderlund, Anezina Solomonidou, Christophe Sotin, Nicholas A. Teanby, Tetsuya Tokano, Steven D. Vance   +21 more
wiley   +1 more source

Ice-sheet elevations from across-track processing of airborne interferometric radar altimetry

, 2009
Interferometric Radar Altimeters (IRA's) use dual receive antennas to overcome one of the spatial limitations of pulse-limited altimeters. In a conventional IRA measurement, the range and across-track direction of a scatterer are determined using the ...
Cullen, R., Helm, Veit, Cullen, R, Wingham, D. J., Wingham, DJ, Hawley, R. L., Hawley, RL, Helm, V, Sheperd, A., Shepherd, A   +9 more
core   +1 more source

A First Look at the Snow/Ice Penetration Effect of SWOT Observations on Water Level of Global Glacial Lakes

Geophysical Research Letters, Volume 53, Issue 9, 16 May 2026.
Abstract The Surface Water and Ocean Topography (SWOT) mission promises quasi‐global monitoring of glacial lakes, yet the elevation difference arising from its Ka‐band radar penetrating lake snow/ice cover remains unquantified. This poses a challenge to assessing their level changes.
Shuangxiao Luo, Chunqiao Song, Pengfei Zhan, Jiayi Li, Li Peng   +4 more
wiley   +1 more source

Ensuring globally the TanDEM-X height accuracy: Analysis of the reference data sets ICESat, SRTM and KGPS-tracks

, 2009
The TanDEM-X mission will derive a global digital elevation model (DEM) with satellite SAR interferometry. Height references play an important role to ensure the required height accuracy of 10m absolute and 2m relative for 90% of the data.
Roth, Achim, M. Huber, Felbier, Andreas, Huber, Martin, A. Felbier, A. Wendleder, Habermeyer, Martin, Wendleder, Anna, B. Wessel, D. Kosmann, M. Habermeyer, V. Schwieger, A. Roth, Wessel, Birgit, Kosmann, Detlev, Schwieger, Volker   +15 more
core   +1 more source

Post‐Acquisition Image‐Based Localization for High Resolution Thermal and Visible/Shortwave Infrared Images With Application to the Lunar Trailblazer Mission

Earth and Space Science, Volume 13, Issue 5, May 2026.
Abstract The Lunar Trailblazer mission aimed to assess the presence of water on the lunar surface using imaging spectroscopy in visible shortwave infrared (VSWIR) coupled with high‐resolution multispectral imaging in thermal midwave‐infrared (MWIR), captured simultaneously over the same target from orbit around the Moon with two different instruments ...
Kevin D. Gauld, James L. Dickson, Tristam J. Warren, Jihoon Yang, Neil Bowles, Bethany L. Ehlmann   +5 more
wiley   +1 more source