Results 61 to 70 of about 11,803 (197)

A high-quality global elevation control point dataset from ICESat-2 altimeter data

open access: yesInternational Journal of Digital Earth
The ICESat-2 satellite equipped with a new photon-counting laser altimeter has received much attention as a source of accurate elevation observations.
Binbin Li   +11 more
doaj   +1 more source

The morphology and 3-D structures of the ionized, molecular, and dust components of planetary nebulae [PDF]

open access: yes, 2009
The morphology of the ionized, molecular, and dust components of planetary nebulae can be traced by optical, infrared and mm/submm observations. Recent progresses in mm/submm interferometry, mid-infrared imaging with active optics, and optical imaging ...
Kwok, S
core  

Neural Implicit Monocular Visual SLAM for 3D Reconstruction in Planetary Environments [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences
The application of SLAM technology in planetary environments has become a research frontier for autonomous rovers. Existing visual SLAM methods often exhibit low accuracy in pose estimation and reconstruction due to poor feature extraction and mismatched
C. Liu   +9 more
doaj   +1 more source

SOFT Wave forecasting report - v.1.0 [PDF]

open access: yes, 2003
This report (SOFT_WP32_rep1.pdf) describes the first version of the wave forecasting code developed within Work Package 3, task 3.2 (implementation of a hybrid SOFT tracking system) of the SOFT Project.
Challenor, Peter, Cipollini, Paolo
core  

Planetary Geologic Mapping: Initial Thoughts on an Ontology Framework [PDF]

open access: yes, 2013
This work is intended to provide initial considerations on building a domain ontology in the field of planetary geologic mapping and cartographic representation. It introduces formal aspects of a higher-level planetary geologic map data ontology using an
Nass, Andrea, van Gasselt, Stephan
core  

A Multiagent Decision-Making Model for Martian Landing Site Selection

open access: yesIEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing
Selecting suitable landing sites on Mars remains one of the key challenges due to the complex terrain of Mars and the diverse scientific objectives in Mars exploration missions.
Rong Wang   +10 more
doaj   +1 more source

Mars planetary mapping pilot project : abstract + poster [PDF]

open access: yes, 2009
Introduction: In February 2009 a new Mars Planetary Mapping Pilot Project for the European Space Agency (ESA/ESTEC) commenced, which will last for one year. It involves a collaboration between the British Geological Survey, TNO/Deltares Geological Survey
Gunnink, J.L.   +7 more
core  

Deforestation detection from spaceborne full-waveform laser altimetry, incorporating terrain effects: A case study in Porto Velho, Brazil

open access: yesInternational Journal of Applied Earth Observations and Geoinformation
Forest structure, notably the canopy height above the ground, can be obtained from the full-waveform data acquired by satellite laser altimetry. On sloped terrain, the laser pulse can simultaneously reflect from both the vegetation and the ground within ...
Min Ji   +7 more
doaj   +1 more source

Lunar and Planetary Science 35 [PDF]

open access: yes, 2004
Special sessions: Oxygen in the Solar System I, Oxygen in the Solar System II, and Mars Missions, and Mars Climate Change. Includes preface, table of contents, program, abstracts and indexes for the 35th LPSC.sponsors Lunar and Planetary Institute, NASA ...

core  

Extending the ICESAT-2 ATLAS Lidar Capabilities to Other Planets Within Our Solar System

open access: yesPhotonics
The ATLAS lidar on NASA’s Earth-orbiting ICESat-2 satellite has operated continuously since its launch in September 2018, with no sign of degradation. Compared to previous international single-beam spaceborne lidars, which operated at a few tens of Hz ...
John J. Degnan
doaj   +1 more source

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