Results 101 to 110 of about 294,690 (247)
Journal of Geophysical Research: Atmospheres, Volume 131, Issue 17, 16 September 2026.Abstract Top‐down studies of methane (CH4) emissions often use the average ethane‐to‐methane (C2/C1) ratio of wellhead gas in a basin to attribute emissions to thermogenic or biogenic sources. Biogenic CH4 sources (ruminants, wetlands, landfills, and other methanogenic sources) do not co‐produce ethane (C2H6); the presence of C2H6 indicates a ...
Mercy C. Ngulat +10 more
wiley +1 more source
Comparison of Airborne Water Vapor Lidar Observations with ECMWF Analyses and first Assimilation Experiments [PDF]
, 2006 Water vapor is the most important greenhouse gas and controls cloud formation and the evolution of weather systems. As its tropospheric concentration may rapidly vary over four orders of magnitude, accurate monitoring of water vapor, especially in the ...
Flentje, Harald +6 more
core
Journal of Geophysical Research: Atmospheres, Volume 131, Issue 17, 16 September 2026.Abstract Longwave cloud radiative effects significantly influence variability in global and regional Earth systems. However, there have been very few, if any, measurements of the far‐infrared (FIR) radiation over the polar regions, where about half of the outgoing longwave radiation is in the FIR spectrum. This motivated the Polar Radiant Energy in the
Tong Ren, Ping Yang, Xianglei Huang
wiley +1 more source
Ground-based and air-borne lidar for wake vortex detection and characterisation [PDF]
, 2008 In the last two years several ground based and airborne wake vortex campaigns have been performed with the DLR coherent Doppler Lidar. The objectives of those cam-paigns were measurements for comparison with the wake vortex prediction and monitoring ...
Rahm, S., Smalikho, I., Wiegele, A.
core
Concurrent Cloud and Drizzle Observations From Synergistic Ground‐Based Measurements
Journal of Geophysical Research: Atmospheres, Volume 131, Issue 17, 16 September 2026.Abstract Drizzle, a common feature of marine boundary layer clouds formed through collision‐coalescence, plays a key role in cloud microphysics and evolution. However, simultaneously retrieving cloud and drizzle properties from remote‐sensing observations remains challenging because drizzle droplets often dominate radar signals, masking cloud ...
Ching‐Shu Hung +9 more
wiley +1 more source
Latent Heat Fluxes over Complex Terrain Measured by Airborne Water Vapour and Wind Lidars [PDF]
, 2010 The combination of a water vapour and a wind lidar on an aircraft is an interesting new tool that allows to measure latent heat flux profiles and to portray the small- to mesoscale variability beneath the aircraft trajectory with high accuracy and ...
Kiemle, Christoph
core
Estimation of stem attributes using a combination of terrestrial and airborne laser scanning [PDF]
, 2012 Properties of individual trees can be estimated from airborne laser scanning (ALS) data provided that the scanning is dense enough and the positions of field-measured trees are available as training data.
Olofsson, Kenneth +3 more
core +1 more source
Airborne Near Infrared Three-Dimensional Ghost Imaging LiDAR via Sparsity Constraint
Remote Sensing, 2018 Three-dimensional ghost imaging LiDAR via sparsity constraint (3D GISC LiDAR), as a staring imaging method, can obtain both the range information and spatial distribution of a remote target with a single-pixel time-resolved detector.
Chenglong Wang +9 more
doaj +1 more source
Journal of Geophysical Research: Atmospheres, Volume 131, Issue 17, 16 September 2026.Abstract Low‐level clouds in the tropical cyclone (TC) rainbands modulate the radial inflow of warm, moist boundary layer air, which can impact TC intensity. Yet, precisely measuring rainband cloud boundaries with existing remote sensing techniques remains a challenge.
Ethan J. Murray +3 more
wiley +1 more source
Airborne Lidar: A Tutorial for 2025 : Part I: Lidar basics
Since the beginning of the 21st century, airborne lidar (light detection and ranging) has entirely revolutionized topographic data acquisition. National mapping agencies around the globe have quickly adopted this active remote sensing technology and ...
Mandlburger, Gottfried
core +4 more sources