Results 111 to 120 of about 2,030,862 (242)

Development of an advanced Two-Micron triple-pulse IPDA lidar for carbon dioxide and water vapor measurements

EPJ Web of Conferences, 2018
An advanced airborne triple-pulse 2-μm integrated path differential absorption (IPDA) lidar is under development at NASA Langley Research Center that targets both carbon dioxide (CO2) and water vapor (H2O) measurements simultaneously and independently ...
Petros Mulugeta, Refaat Tamer F., Singh Upendra N., Yu Jirong, Antill Charles, Remus Ruben, Taylor Bryant D., Wong Teh-Hwa, Reithmaier Karl, Lee Jane, Ismail Syed, Davis Kenneth J   +11 more
doaj   +1 more source

Remote Sensing With Machine Learning to Monitor Seagrass Meadows: Long‐Term Trends in Tauranga Harbour, New Zealand

New Zealand Journal of Marine and Freshwater Research, Volume 60, Issue 3, September 2026.
Seagrass meadows play critical roles in coastal ecosystems by stabilising sediments, supporting biodiversity and sequestering carbon, yet monitoring their recovery at scale is often constrained by the lack of scalable and repeatable approaches. This study applies an open‐source remote‐sensing framework to track long‐term changes in Zostera muelleri in ...
Zhanchao Shao, Karin R. Bryan, Sanne M. Vaassen, Conrad A. Pilditch, Brooke Ellis‐Smith, Josie A. Crawshaw   +5 more
wiley   +1 more source

Exploring the Use and Impact of Composite Materials in Robotics: A Systematic Review

Journal of Field Robotics, Volume 43, Issue 6, Page 4037-4060, September 2026.
ABSTRACT Lightweight and high‐strength materials are important in robotics, as structural design impacts efficiency, payload capacity, and energy consumption. Composite materials, with their superior stiffness‐to‐weight ratios and multifunctional properties, offer clear advantages over conventional metals and polymers.
Doglas Negri, Gabriela Wessling Oening, Felipe Augusto Carvalho de Faria, Sarah Maria Schroeder, Ricardo De Medeiros   +4 more
wiley   +1 more source

Targeted observations with an airborne wind lidar [PDF]

, 2005
This study investigates the possibilities and limitations of airborne Doppler lidar for adaptive observations over the Atlantic Ocean. For the first time, a scanning 2-µm Doppler lidar was applied for targeted measurements during the Atlantic The ...
Busen, Reinhold, Reitebuch, Oliver, Rahm, Stephan, Dörnbrack, Andreas, Weissmann, Martin   +4 more
core  

First attempt to monitor atmospheric glyoxal using differential absorption lidar

, 2012
Glyoxal (CHOCHO), as an indicator of photochemical “hot spots”, was for the first time the subject of a differential absorption lidar (DIAL) campaign. The strongest absorption line of glyoxal in the blue wavelength region – 455.1 nm – was chosen as the ...
Hu, Jiandong, Alexandros Papayannis, Mei, Liang, Patrik Lundin, Guangyu Zhao, Svanberg, Sune, Sune Svanberg, Zhao, Guangyu, Liang Mei, Vrekoussis, Mihalis, Papayannis, Alexandros, Somesfalean, Gabriel, Bood, Joakim, Gabriel Somesfalean, Jiandong Hu, Mihalis Vrekoussis, Lundin, Patrik, Joakim Bood   +17 more
core   +1 more source

Biases and Uncertainties in Radiosonde‐Based Precipitable Water Vapor

Earth and Space Science, Volume 13, Issue 9, September 2026.
Abstract Precipitable water vapor (PWV) plays an important role in weather and climate phenomena. Accurate PWV measurements based on radiosonde observations are essential for assessing remote‐sensing measurements and long‐term trends. This study examines the performance of PWV algorithms, including their intrinsic biases and their sensitivity to ...
António P. Ferreira, Cesar Azorin‐Molina, Luis Gimeno   +2 more
wiley   +1 more source

Differential absorption lidar for water vapour in the atmosphere [PDF]

, 2002
Looks at the development of Differential Absorption Lidar based on diode lasers for profiling the temporal and vertical distribution of water vapour in the atmosphere.
Bae, Kwang-Ho
core  

Process‐Based Model Parameters for Post‐Fire Snow Hydrology: Looking Beyond Snow Albedo and Vegetation

Water Resources Research, Volume 62, Issue 9, September 2026.
Abstract Wildfires fundamentally alter snow accumulation and melt dynamics by modifying forest canopy structure, snow albedo, and snowpack physical properties. Despite the growing body of work on fire impacts on snow, few studies have used physically based models to simulate post‐fire changes, and none have examined the global parameter sensitivities ...
Arielle Koshkin, Adrienne M. Marshall, Andy Wood   +2 more
wiley   +1 more source

Airborne lidar observations supporting the ADM-Aeolus mission for global wind profiling [PDF]

, 2012
The Atmospheric Dynamics Mission ADM-Aeolus of ESA will be the first lidar mission to sense the global wind field from space. The instrument is based on a direct-detection Doppler lidar operating at 354.9 nm with two spectrometers for aerosol/cloud ...
Witschas, Benjamin, Reitebuch, Oliver, Marksteiner, Uwe, Rahm, Stephan, Lemmerz, Christian, Witschas , Benjamin   +5 more
core  

Lakes Amplify Carbon Emissions Relative to Downstream Export in Aquatic Networks

Geophysical Research Letters, Volume 53, Issue 16, 28 August 2026.
Abstract Inland waters emit and export large quantities of carbon (C), and the balance between emission and export determines the role of inland waters in the global C cycle. Modeling studies of stream‐lake networks suggest that C emission‐to‐export ratios (emission:export) are higher in lake‐rich networks with longer network residence times (NRT), yet
F. Alriksson, G. Rocher‐Ros, M. Klaus, C. Gudasz, V. Hazuková, D. Vachon, L. E. Polvi, M. Rosvall, J. Karlsson   +8 more
wiley   +1 more source