Results 21 to 30 of about 2,423,184 (252)

A Micro-Pulse Differential Absorption Lidar Test Network [PDF]

open access: yesEPJ Web of Conferences, 2020
The National Center for Atmospheric Research (NCAR) and Montana State University (MSU) have developed a test network of five micro-pulse Differential Absorption Lidar (DIAL) instruments to continuously measure high-vertical-resolution water vapor in the ...
Spuler Scott   +7 more
doaj   +1 more source

Performance Evaluation of an A Band Differential Absorption LIDAR Model and Inversion for the Ocean Surface Pressure from Low-Earth Orbit

open access: yesAtmosphere, 2023
Remote sensing of ocean surface pressure from space is very important, and differential absorption LIDAR and differential absorption radar are only two kinds of remote sensing instruments with this potential.
Guanglie Hong, Yu Dong, Huige Di
doaj   +1 more source

Influence of Absorption Cross-Sections on Retrieving the Ozone Vertical Distribution at the Siberian Lidar Station

open access: yesAtmosphere, 2022
The purpose of this paper is to study how the application of different sets of absorption cross-sections influence the ozone vertical distribution (OVD) in the upper layers of the troposphere—stratosphere in the altitude range ~(5–45) km, using a ...
Sergey Dolgii   +5 more
doaj   +1 more source

Atmospheric Mercury in China Studied with Differential Absorption Lidar [PDF]

open access: yesEPJ Web of Conferences, 2020
Mercury is a very serious environmental pollutant which is intensely studied by many researchers. China is a main producer and consumer of mercury. We have pursued extensive monitoring of atomic mercury using the differential absorption lidar (DIAL ...
Zhao Guangyu   +3 more
doaj   +1 more source

Advances in Se Wide-Bandgap Photovoltaics and Te<sub>x</sub>Se<sub>1-x</sub> SWIR Photodiodes. [PDF]

open access: yesAdv Sci (Weinh)
In this review, fundamental properties and current challenges in Se photovoltaics (PVs) for tandem and indoor PVs and TexSe1‐x alloys for short wave infrared photodiodes are discussed. A case is made for the practicality of elemental chalcogenide optoelectronics, and a pathway toward resolving the key challenges in these respective technologies is ...
Alfieri AD, Jariwala D.
europepmc   +2 more sources

Open-Shell Conjugated Polymers Enable Photothermoelectric Conversion and Detection of Short-Wave Infrared Light. [PDF]

open access: yesAdv Sci (Weinh)
Efficient conversion and detection of short‐wave infrared (SWIR) photons are becoming increasingly important for emerging photonic and energy technologies. Here, we report an organic photothermoelectric device based on an open‐shell conjugated polymer that enables SWIR energy conversion and photon detection via the photothermoelectric effect.
Chen GL   +5 more
europepmc   +2 more sources

Flight Demonstration of a 2-Micron, Double Plused CO2 IPDA Lidar Instrument [PDF]

open access: yesEPJ Web of Conferences, 2020
NASA Langley Research Center (LaRC) developed a double pulsed, high energy 2-micron Integrated Path Differential Absorption (IPDA) lidar instrument to measure atmospheric CO2 column density.
Yu Jirong   +6 more
doaj   +1 more source

Energy calibration of integrated path differential absorption lidars [PDF]

open access: yesApplied Optics, 2018
The stringent requirements for energy reference measurement represent a challenging task for integrated path differential absorption lidars to measure greenhouse gas columns from satellite or aircraft. The coherence of the lidar transmitter gives rise to speckle effects that have to be considered for accurate monitoring of the energy ratio of outgoing ...
Andreas Fix   +3 more
openaire   +3 more sources

Development of a laser for differential absorption lidar measurement of atmospheric carbon dioxide [PDF]

open access: yes, 2014
In the quest for a better understanding of climate change, greater importance is attached to monitoring the levels of atmospheric carbon dioxide to gain an improved knowledge of sources and sinks.
Cameron F. Rae   +10 more
core   +1 more source

Ongoing activities at LMD to prepare the CH4 space lidar mission MERLIN [PDF]

open access: yesEPJ Web of Conferences
MERLIN (MEthane Remote LIdar missioN) is a space mission developed by France and Germany to monitor the atmospheric methane using an IPDA (Integrated Path Differential Absorption) lidar.
Gibert Fabien   +8 more
doaj   +1 more source

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