Results 71 to 80 of about 2,611 (211)

Iodine oxide in the global marine boundary layer [PDF]

, 2015
Prados-Roman, C. ... et. al.-- 11 pages, 7 figures, 2 tables, The Supplement related to this article is available online at https://doi.org/10.5194/acp-15-583-2015-supplementEmitted mainly by the oceans, iodine is a halogen compound important for ...
Cuevas, Carlos A., Dachs, Jordi, Fernández, Rafael P., Galí, Martí, Hay, T.D., Mahajan, Anoop S., Prados-Roman, C., Royer, S.-J., Saiz-Lopez, A., Simó, Rafel   +9 more
core   +2 more sources

MAX-DOAS NO₂ observations over Guangzhou, China; ground-based and satellite comparisons [PDF]

Atmospheric Measurement Techniques, 2018
In this study, the tropospheric NO2 vertical column density (VCD) over an urban site in Guangzhou megacity in China is investigated by means of MAX-DOAS measurements during a campaign from late March 2015 to mid-March 2016.
T. Drosoglou, M. E. Koukouli, N. Kouremeti, A. F. Bais, I. Zyrichidou, D. Balis, R. J. van der A, R. J. van der A, J. Xu, A. Li   +9 more
doaj   +1 more source

A simple and versatile cloud-screening method for MAX-DOAS retrievals [PDF]

Atmospheric Measurement Techniques, 2014
Abstract. We present a cloud-screening method based on differential optical absorption spectroscopy (DOAS) measurements, more specifically using zenith sky spectra and O4 differential slant-column densities (DSCDs). Using the colour index (CI), i.e. the ratio of the radiance at two wavelengths, we define different sky conditions including clear, thin ...
C. Gielen, M. Van Roozendael, F. Hendrick, G. Pinardi, T. Vlemmix, V. De Bock, H. De Backer, C. Fayt, C. Hermans, D. Gillotay, P. Wang   +10 more
openaire   +4 more sources

Validation of OMI HCHO Products Using MAX-DOAS observations from 2010 to 2016 in Xianghe, Beijing: Investigation of the Effects of Aerosols on Satellite Products

Remote Sensing, 2019
Formaldehyde (HCHO) is one of the most abundant hydrocarbons in the atmosphere. Its absorption features in the 320⁻360 nm range allow its concentration in the atmosphere to be retrieved from space.
Yapeng Wang, Zifeng Wang, Chao Yu, Songyan Zhu, Liangxiao Cheng, Ying Zhang, Liangfu Chen   +6 more
doaj   +1 more source

Retrieval of tropospheric NO₂ using the MAX-DOAS method combined with relative intensity measurements for aerosol correction [PDF]

Atmospheric Measurement Techniques, 2010
Multi-Axis Differential Optical Absorption Spectroscopy (MAX-DOAS) is a technique to measure trace gas amounts in the lower troposphere from ground-based scattered sunlight observations.
P. F. Levelt, P. Wang, P. Stammes, A. J. M. Piters, T. Vlemmix   +4 more
doaj   +1 more source

Introduction to special issue: the TransBrom Sonne expedition in the tropical West Pacific [PDF]

, 2013
This special section of Atmospheric Chemistry and Physics gives an overview of scientific results, collected during a West Pacific ship expedition in October 2009 with the Research Vessel (R/V) Sonne.
Krüger, Kirstin, Quack, Birgit
core   +1 more source

Concurrent Sensing and Communications Based on Intelligent Metasurfaces

Advanced Electronic Materials, Volume 12, Issue 2, 21 January 2026.
An IM‐assisted concurrent ISAC scheme to exploit the otherwise wasted energy inherent in high‐order 16‐APSK DAM, to realize wireless gesture recognition thereby enabling efficient resource sharing for C‐ISAC. This architecture offers promising opportunities for next‐generation mobile internet, embodied intelligence, smart homes, smart factories, and ...
Hanting Zhao, Menglin Wei, Mingyi Li, Jiawen Xu, Jing Jin, Qixing Wang, Chunju Shao, Haiyu Ding, Lianlin Li   +8 more
wiley   +1 more source

MAX-DOAS observations of ship emissions in the North Sea

Marine Pollution Bulletin
Shipping emissions were measured in Dunkirk, France. Elevated aerosol extinction coefficients (AEC), nitrogen dioxide (NO2) and sulphur dioxide (SO2) were observed up to 500 m from surface. Formaldehyde (HCHO) did not show an increase every time, which suggests that oxidation of emitted volatile organic compounds (VOCs) took longer than the transport ...
Mahajan, Anoop, Tinel, Liselotte, Riffault, Véronique, Guilbaud, Sarah, D’anna, Barbara, Cuevas, Carlos, Saiz-Lopez, Alfonso   +6 more
openaire   +4 more sources

Spectral Modeling of the Dark Signal for UV and VIS‐NIR AvaSpec‐2048 CCD‐Array Spectrometers

Earth and Space Science, Volume 13, Issue 1, January 2026.
Abstract The use of CCD‐array spectrometers has substantially increased in recent years in many different fields. Although they have numerous advantages over conventional scanning spectrometers, they need to be thoroughly characterized to correct for various sources of error. This study focuses on the experimental characterization of the dark signal of
A. Flores, A. Serrano, G. Sánchez‐Hernández, M. A. Obregón, J. M. Vilaplana   +4 more
wiley   +1 more source

Tropospheric NO₂, SO₂, and HCHO over the East China Sea, using ship-based MAX-DOAS observations and comparison with OMI and OMPS satellite data [PDF]

Atmospheric Chemistry and Physics, 2018
In this study, ship-based multi-axis differential optical absorption spectroscopy (MAX-DOAS) measurements were performed in the East China Sea (ECS) area in June 2017.
W. Tan, C. Liu, C. Liu, C. Liu, C. Liu, S. Wang, S. Wang, C. Xing, W. Su, C. Zhang, C. Xia, H. Liu, Z. Cai, J. Liu   +13 more
doaj   +1 more source