Results 1 to 10 of about 81,014 (268)

Variation of black carbon in Northeast China based on ground observation and MERRA-2 reanalysis data [PDF]

open access: yesE3S Web of Conferences, 2020
The temporal variations of black carbon concentration at 7 sites, including Longfengshan, Anshan, Benxi, Dalian, Changchun, Shenyang, and Fushun, in Northeast China was studied based on up to 11 years of ground observations and MERRA-2 reanalysis dataset.
Song Qingli   +5 more
doaj   +1 more source

Deep Quantified Visibility Estimation for Traffic Image

open access: yesAtmosphere, 2022
Image-based quantified visibility estimation is an important task for both atmospheric science and computer vision. Traditional methods rely largely on meteorological observation or manual camera calibration, which restricts its performance and ...
Fang Zhang   +6 more
doaj   +1 more source

A Dual-Frequency Cloud Radar for Observations of Precipitation and Cloud in Tibet: Description and Preliminary Measurements

open access: yesRemote Sensing, 2021
A new dual-frequency Doppler polarimetric cloud radar (DDCR), working at 35-GHz (Ka-band radar, wavelength: 8.6 mm) and 94-GHz (W-band radar, wavelength: 3.2 mm) frequencies, has been in operation at Yangbajing Observatory on the Tibetan Plateau (China ...
Juan Huo   +4 more
doaj   +1 more source

A steady-state continuous flow chamber for the study of daytime and nighttime chemistry under atmospherically relevant NO levels [PDF]

open access: yesAtmospheric Measurement Techniques, 2018
Experiments performed in laboratory chambers have contributed significantly to the understanding of the fundamental kinetics and mechanisms of the chemical reactions occurring in the atmosphere. Two chemical regimes, classified as high-NO vs.
X. Zhang   +7 more
doaj   +1 more source

Temporal Variation and Source Analysis of Atmospheric CH4 at Different Altitudes in the Background Area of Yangtze River Delta

open access: yesAtmosphere, 2022
Through an analysis of CH4 data observed at different altitudes at the atmospheric background station in Lin’an from 2016 to 2020, in combination with back-trajectory and distribution characteristics of potential source areas, the CH4 concentration ...
Meng Shan   +5 more
doaj   +1 more source

Estimation of Moist Atmospheric Profiles from Refraction and Attenuation Measurements by Using Centimeter and Millimeter Wave Links between LEO Satellites

open access: yesRemote Sensing, 2023
Microwave occultation using centimeter and millimeter wave links between low Earth orbit (LEO) satellites provide a potential way to estimate the moist atmospheric profiles based on refraction and attenuation measurements, which is called the LEO-LEO ...
Zhihua Zhang, Xin Wang, Daren Lyu
doaj   +1 more source

High-resolution assessment of coal mining methane emissions by satellite in Shanxi, China

open access: yesiScience, 2023
Summary: Accurate assessment of coal mine methane (CMM) emissions is a prerequisite for defining baselines and assessing the effectiveness of mitigation measures.
Shushi Peng   +9 more
doaj   +1 more source

Comparison of Atmospheric Temperature and Humidity Sounding by Different Sensors Onboard a New Composite Wing UAV

open access: yes应用气象学报, 2023
Satellite navigation-based autonomous drones have become an important platform for atmospheric exploration. In order to overcome the harsh take-off and landing conditions of fixed-wing UAVs and the short flight time of rotorcraft, a new composite wing ...
Chang Yue   +7 more
doaj   +1 more source

Measurement of Cloud Top Height: Comparison of MODIS and Ground-Based Millimeter Radar

open access: yesRemote Sensing, 2020
Cloud top height (CTH) is an essential pareter for the general circulation model in understanding the impact of clouds on the Earth’s radiation budget and global climate change.
Juan Huo   +5 more
doaj   +1 more source

Pioneer Venus atmospheric observations

open access: yesPhilosophical Transactions of the Royal Society of London. Series A, Mathematical and Physical Sciences, 1981
Some selected results from the scientific experiments on the recent Pioneer missions to Venus are reviewed, with particular emphasis on data from the infrared remote sensing experiment on the orbiter. Various aspects of the structure, dynamics and energy budget of the atmosphere, as revealed by the measurements, are presented for discussion.
Taylor, F, Schofield, J, Bradley, S
openaire   +2 more sources

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