Results 91 to 100 of about 2,558,610 (193)
Ozone Measurements Using the Refurbished Eureka Stratospheric Differential Absorption Lidar
Canadian Journal of Remote Sensing, 2019 The Stratospheric Ozone Differential Absorption Lidar (DIAL) located at the Polar Environment Atmospheric Research Laboratory (PEARL) in Eureka, Nunavut (80°N, 86°W) has been a powerful tool for the measurement of stratospheric ozone vertical profiles in
Alexey B. Tikhomirov +6 more
doaj +1 more source
Remote Sensing in Ecology and Conservation, EarlyView.We demonstrate that high‐resolution multispectral imagery combined with machine learning can accurately predict key biocrust functional indicators, particularly the UV‐protective pigment scytonemin, across dryland ecosystems. Using fine‐scale imagery acquired in the Chihuahuan Desert and Colorado Plateau, we identified spectral bands strongly ...
Raúl Román +8 more
wiley +1 more source
, 2019 International audienceWe report on a differential absorption lidar, designed for remote detection of CH 4 and CO 2 , based on a single-frequency 1.57-1.65 µm parametric oscillator/amplifier system.
Lebat, Vincent +10 more
core +1 more source
Remote Sensing in Ecology and Conservation, EarlyView.This study demonstrates that not just Airborne Laser Scanning, but also Sentinel‐2 can effectively estimate absolute canopy cover and canopy cover heterogeneity ‐ structural metrics that determine the subcanopy light regime, found to be linked to the vascular plant species richness in the understory of temperate mountain forests.
Felix Wieland‐Glasmann +4 more
wiley +1 more source
Enabling Technologies for Cross-Cutting Airborne and Spaceborne Water Vapor and Methane DIAL [PDF]
EPJ Web of ConferencesNASA Langley Research Center has developed the High-Altitude Lidar Observatory (HALO), a water vapor and methane Differential Absorption Lidar (DIAL) and High Spectral Resolution Lidar (HSRL) system to address the observational needs of weather, climate,
Nehrir Amin +16 more
doaj +1 more source
Underwater imaging without colour distortions requires RAW capture
Methods in Ecology and Evolution, EarlyView.Abstract Consumer cameras are not designed to be scientific instruments, yet they are increasingly used in science not just to see, but to measure. This is possible because camera sensors respond approximately linearly to the light they receive, a property that can, in principle, support quantitative measurements of colour.
Derya Akkaynak, Michael S. Brown
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
Human Recreation and Fire History Shape Landscape Connectivity for an Endangered Forest Carnivore
Animal Conservation, EarlyView.Roads and trails can impede wildlife movement, but their permeability varies with human use and fire history. We combined GPS telemetry from 45 endangered southern Sierra Nevada fishers (Pekania pennanti) with smartphone‐derived human mobility data to estimate crossing probability across road and trail segments. Fishers were about 2.5 times more likely
Mark A. Ditmer +11 more
wiley +1 more source
Defence TechnologyAn innovative complex lidar system deployed on an airborne rotorcraft platform for remote sensing of atmospheric pollution is proposed and demonstrated.
Ze-hou Yang +7 more
doaj +1 more source
Simulation of the performance of WALES based on an end-to-end model [PDF]
, 2004 WALES (Water Vapour Lidar Experiment in Space) is one of the experiments considered by ESA for selection as Earth Explorer Core mission in the frame of the Earth Observation Envelope Programme.
Kiemle, Christoph +15 more
core