Results 51 to 60 of about 1,224 (173)

Comparison of cloud statistics from spaceborne lidar systems [PDF]

Atmospheric Chemistry and Physics, 2008
The distribution of clouds in a vertical column is assessed on the global scale through analysis of lidar measurements obtained from three spaceborne lidar systems: LITE (Lidar In-space Technology Experiment, NASA), GLAS (Geoscience Laser Altimeter ...
S. Berthier, P. Chazette, J. Pelon, B. Baum   +3 more
doaj  

Survey on AI‐Enabled Computer Vision Technologies and Applications for Space Robotic Missions

Journal of Field Robotics, Volume 43, Issue 4, Page 2553-2584, June 2026.
ABSTRACT This survey provides a comprehensive overview of recent advancements and challenges in Artificial Intelligence (AI)‐enabled computer vision (CV) techniques for space robotic missions, spanning critical phases such as Entry, Descent, and Landing (EDL), orbital operations, and planetary surface exploration.
Maciej Quoos, Steven Kay, Julia Wajoras, Robert Field, Evridiki V. Ntagiou, Fakher Mohammad, Yang Gao   +6 more
wiley   +1 more source

PSLRC-Net: A PolInSAR and Spaceborne LiDAR Fusion Method for High-Precision DEM Inversion in Forested Areas

Remote Sensing
The Digital Elevation Model (DEM) is widely used in fields such as geoscience and environmental management. However, the existing DEMs struggle to meet the current requirements for timeliness and accuracy, especially in forested areas where vegetation ...
Xiaoshuai Li, Huihua Hu, Xiaolei Lv, Zenghui Huang   +3 more
doaj   +1 more source

Assessment of CALIOP-Derived CCN Concentrations by In Situ Surface Measurements

Remote Sensing, 2022
The satellite-based cloud condensation nuclei (CCN) proxies used to quantify the aerosol-cloud interactions (ACIs) are column integrated and do not guarantee the vertical co-location of aerosols and clouds.
Goutam Choudhury, Matthias Tesche
doaj   +1 more source

Modelling forest dynamics using integral projection models and repeat lidar

Remote Sensing in Ecology and Conservation, Volume 12, Issue 3, Page 479-493, June 2026.
Forests are facing increasing pressure from climate change and disturbance, yet linking individual tree trajectories to whole‐forest outcomes remains a major challenge. Our study integrates repeat airborne lidar with an Integral Projection Model to analyse demographic processes at the landscape scale.
Alice Rosen, Robin Battison, Christina M. Hernández, Oliver G. Spacey, Jessica McLean, Suzanne M. Prober, Samuel J. L. Gascoigne, Sean McMahon, Tommaso Jucker, Roberto Salguero‐Gómez   +9 more
wiley   +1 more source

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

Spaceborne observations of the lidar ratio of marine aerosols [PDF]

Atmospheric Chemistry and Physics, 2015
Abstract. Retrievals of aerosol optical depth (AOD) from the Cloud-Aerosol Lidar with Orthogonal Polarization (CALIOP) satellite sensor require the assumption of the extinction-to-backscatter ratio, also known as the lidar ratio. This paper evaluates a new method to calculate the lidar ratio of marine aerosols using two independent sources: the AOD ...
K. W. Dawson, N. Meskhidze, D. Josset, S. Gassó   +3 more
openaire   +3 more sources

Estimation of Forest Stock Volume in Complex Terrain Using Spaceborne Lidar

Remote Sensing
In forest remote sensing monitoring of complex terrain, spaceborne lidar data has become a key technology for obtaining large-scale forest structure parameters due to its uniquethree-dimensional observation capabilities.
Yiran Zhang, Qingtai Shu, Xiao Zhang, Zeyu Li, Lianjin Fu   +4 more
doaj   +1 more source

Hotspots in Cold Climates: Mapping and Evaluating the Conservation of Winter Biodiversity Across the United States

Diversity and Distributions, Volume 32, Issue 6, June 2026.
ABSTRACT Aim To identify hotspots and conservation priorities of biodiversity based on winter‐informed species distribution models for cold‐adapted mammals and birds, and their taxonomic, phylogenetic, and functional richness. Location The United States of America.
Spencer R. Keyser, Jonathan N. Pauli, Volker C. Radeloff, Daniel Fink, Benjamin Zuckerberg   +4 more
wiley   +1 more source

Satellite Remote Sensing of Alpine Vegetation Dynamics: Challenges and Perspectives

Global Change Biology, Volume 32, Issue 6, June 2026.
Satellite greening has become a key tool for monitoring alpine vegetation change, but a positive vegetation‐index trend is not an ecological observation in itself. This perspective shows that interpreting alpine greening requires addressing two sequential challenges: methodological complexity, which can bias trends during image processing, and ...
Arthur Bayle
wiley   +1 more source