Results 51 to 60 of about 2,465,580 (245)

Differential Absorption Lidar (DIAL) Measurements of Landfill Methane Emissions

Remote Sensing, 2017
Methane is one of the most important gaseous hydrocarbon species for both industrial and environmental reasons. Understanding and quantifying methane emissions to atmosphere is therefore an important element of climate change research.
Fabrizio Innocenti, Rod Robinson, Tom Gardiner, Andrew Finlayson, Andy Connor   +4 more
doaj   +1 more source

First Steps of Maturation Towards Space of Nested Cavity Optical Parametric Oscillator and Amplifiers for DIAL Based on Periodically Poled Nonlinear Materials [PDF]

EPJ Web of Conferences, 2020
We report on the first steps of maturation towards space of a nested cavity optical parametric oscillator and amplifiers, based on periodically poled nonlinear materials, emitting in the 2µm range for multi species differential absorption lidar (DIAL).
Dherbecourt Jean-Baptiste, Melkonian Jean-Michel, Lebat Vincent, Tanguy Nicolas, Duzellier Sophie, Blanchard Cedric, Coetzee Rian S., Canalias Carlota, Pasiskevicius Valdas, Godard Antoine, Raybaut Myriam   +10 more
doaj   +1 more source

Field tests of the mobile lidar for tropospheric ozone sensing on horizontal (inclined) and vertical paths [PDF]

E3S Web of Conferences
The results of field tests of the mobile lidar for ozone sensing on horizontal (inclined) and vertical paths are presented. The lidar operates on the basis of the differential absorption and scattering method at wavelengths of 299/341 nm and allows ...
Nevzorov Alexey, Tuzhilkin Dmitry, Nevzorov Aleksey   +2 more
doaj   +1 more source

Horizontal structure function and vertical correlation analysis of mesoscale water vapor variability observed by airborne lidar [PDF]

, 2013
Analysis is presented of airborne lidar measurements of water vapor, covering a height range from 1.5 to 10.4 km, from three field campaigns (midlatitude summer, polar winter, and subtropical summer).
Kiemle, Christoph, L. Fischer, Fischer, Lucas, C. Kiemle, Craig, George C., G. C. Craig   +5 more
core   +1 more source

Mixed layer height retrievals using MicroPulse Differential Absorption Lidar [PDF]

Atmospheric Measurement Techniques
Accurate measurement of the mixed layer height (MLH) is a key observational capability necessary for many studies in weather forecasting, air quality assessment, and surface-atmosphere exchange.
L. Colberg, K. S. Repasky, M. Hayman, R. A. Stillwell, S. M. Spuler   +4 more
doaj   +1 more source

Three-dimensional detection of CO2 and wind using a 1.57 µm coherent differential absorption lidar.

Optics Express
A 1.57-µm coherent differential absorption lidar is demonstrated for measuring three-dimensional CO2 and wind fields simultaneously. The maximum detection range of CO2 is up to 6 km with a range resolution of 120 m and a time resolution of 1 min.
Sai-Fen Yu, Kexin Guo, Shenghao Li, Haobin Han, Zhen Zhang, Hai-Yun Xia   +5 more
semanticscholar   +1 more source

Latent Heat Flux Profiles from Collocated Airborne Water Vapor and Wind Lidars during IHOP_2002 [PDF]

, 2007
Latent heat flux profiles in the convective boundary layer (CBL) are obtained for the first time with the combination of the DLR water vapor differential absorption lidar (DIAL) and the NOAA high resolution Doppler wind lidar (HRDL).
Kiemle, Christoph, Fix, Andreas, Hardesty, Michael, LeMone, Margaret, Senff, Christoph, Brewer, Alan, Ehret, Gerhard, Poberaj, Gorazd, Wirth, Martin   +8 more
core   +1 more source

Estimation of background gas concentration from differential absorption lidar measurements [PDF]

Atmospheric Measurement Techniques, 2016
Approaches are considered to estimate the background concentration level of a target species in the atmosphere from an analysis of the measured data provided by the National Physical Laboratory's differential absorption lidar (DIAL) system.
P. Harris, N. Smith, V. Livina, T. Gardiner, R. Robinson, F. Innocenti   +5 more
doaj   +1 more source

Broadband continuous-wave differential absorption lidar for atmospheric remote sensing of water vapor.

Optics Express
What we believe to be a novel low-cost broadband continuous-wave water vapor differential absorption lidar (CW-DIAL) technique has been proposed and implemented by combing the Scheimpflug principle and the differential absorption method. The broadband CW-
Jiheng Yu, Yuan Cheng, Zheng Kong, Jia-Ming Song, Yu-Peng Chang, Kun Liu, Z. Gong, Liang Mei   +7 more
semanticscholar   +1 more source

Field Evaluation of Column CO2 Retrievals From Intensity‐Modulated Continuous‐Wave Differential Absorption Lidar Measurements During the ACT‐America Campaign [PDF]

Earth and Space Science, 2020
We present an evaluation of airborne intensity‐modulated continuous‐wave (IM‐CW) lidar measurements of atmospheric column CO2 mole fractions during the Atmospheric Carbon and Transport–America (ACT‐America) project. This lidar system transmits online and
J. Campbell, B. Lin, M. Obland, Jeremy Dobler, W. Erxleben, D. McGregor, C. O'Dell, E. Bell, S. Pal, B. Weir, T. Fan, S. Kooi, Abigail M. Corbett, K. Davis, I. Gordon, R. Kochanov   +15 more
semanticscholar   +1 more source