Results 91 to 100 of about 690,046 (203)

Report on the description of the MAX-DOAS profiles retrieval code and its validation

, 2023
This document is the report of the activities performed in the frame of WPs 2250-1.2 and 1.3 of the IDEAS-QA4EO Phase IIWPs-2250-2251 DOAS-BO: ”Towards a new FRM4DOAS-compliant site’. The WP 2250-1.2 and 1.3 are centered on the development and validation of NO2 and aerosol CNR-ISAC retrieval code for MAX-DOAS measurements.
Castelli, Elisa, Pettinari, Paolo, Papandrea, Enzo, Premuda, Margherita, Di Liberto, Luca, Valeri, Massimo   +5 more
openaire   +2 more sources

Enhanced tropospheric BrO over Antarctic sea ice in mid winter observed by MAX-DOAS on board the research vessel Polarstern [PDF]

, 2007
We present Multi AXis-Differential Optical Absorption Spectroscopy (MAX-DOAS) observations of tropospheric BrO carried out on board the German research vessel Polarstern during the Antarctic winter 2006.
Platt, U, Sinreich, R, Sinreich, R., von Glasow, R., U. Platt, T. Wagner, Frie, U, Wagner, T, Ibrahim, O, von Glasow, R, O. Ibrahim, Wagner, T., Platt, U., R. Sinreich, Frieß, U., U. Frieß, R. von Glasow, Ibrahim, O.   +17 more
core   +1 more source

Validating tropospheric NO2 column density from GEMS version 3.0 and Tropospheric Chemistry Reanalysis version 2 from background to urban conditions over Japan: with a focus on diurnal variations

Progress in Earth and Planetary Science
This study validates tropospheric NO2 vertical column density (TropNO2 VCD) data from the Geostationary Environment Monitoring Spectrometer (GEMS) version 3.0 and the Tropospheric Chemistry Reanalysis version 2 (TCR-2) against Multi-Axis Differential ...
Phuc Thi Minh Ha, Yugo Kanaya, Takashi Sekiya, Hisahiro Takashima, Kengo Sudo, Yongjoo Choi, Limseok Chang, Hanlim Lee, Hyunkee Hong, Jhoon Kim   +9 more
doaj   +1 more source

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

Estimation of NOx Emissions from megacities using mobile MAX-DOAS and satellite observations

, 2012
The focus of this study is on the quantification of NOx emissions. We characterized and quantfified vertically integrated NO2 concentrations (VCDs) and NOx emissions by using mobile MAX-DOAS and satellite observations.
Shaiganfar, R., Shaiganfar, Reza
core   +1 more source

SQUID: Sparse Recovery‐Based Efficient Detection for Signed Quadrature Spatial Modulation in Massive MIMO Systems

IET Communications, Volume 20, Issue 1, January/December 2026.
This paper introduces SQUID, a high‐performance, low‐complexitydetection framework designed for massive MIMO systems. By integrating spatialmodulation with compressive sensing, SQUID leverages the inherent sparsity ofSQSM to outperform traditional detectors while significantly reducingcomputational overhead.
Setareh Dehghanfard, Mojtaba Amiri, Ali Olfat   +2 more
wiley   +1 more source

Intercomparison of aerosol extinction profiles retrieved from MAX-DOAS measurements [PDF]

, 2016
A first direct intercomparison of aerosol vertical profiles from Multi-Axis Differential Optical Absorption Spectroscopy (MAX-DOAS) observations, performed during the Cabauw Intercomparison Campaign of Nitrogen Dioxide measuring Instruments (CINDI) in ...
R. Shaiganfar, S. Beirle, Moerman, M. M., M. M. Moerman, Beirle, S., P. Zieger, Li, A., Wagner, T., Moerman, M., Hendrick, F., G. de Leeuw, Baltink, H. Klein, M. van Roozendael, Y. Wang, H. Klein Baltink, Henzing, B., van Roozendael, M., Zieger, P., B. Henzing, Klein Baltink, H., Shaiganfar, R., Yilmaz, S., S. Yilmaz, P. Xie, T. Wagner, K. Clémer, Friess, U., Xie, P., Irie, H., F. Hendrick, Baltink, H., Leeuw, G. de, de Leeuw, G., A. Li, H. Irie, Wang, Y., Clemer, K., Moerman, M.M., U. Frieß   +38 more
core   +1 more source

Ground-based FTIR and MAX-DOAS observations of formaldehyde at Réunion Island and comparisons with satellite and model data [PDF]

Atmospheric Chemistry and Physics, 2009
Formaldehyde (HCHO) columns have been retrieved from ground-based Fourier transform infrared (FTIR) campaign measurements in 2004 and 2007 and from UV-Visible MAX-DOAS measurements in 2004–2005 at the NDACC site of Réunion Island (21° S, 55& ...
M. Van Roozendael, M. De Mazière, J.-F. Müller, M. Carleer, J.-M. Metzger, S. Fally, C. Senten, G. Vanhaelewyn, F. Scolas, C. Hermans, A. Merlaud, B. Dils, I. De Smedt, F. Hendrick, T. Stavrakou, C. Vigouroux   +15 more
doaj  

MAX-DOAS Measurements of Tropospheric NO₂ and HCHO Vertical Profiles at the Longfengshan Regional Background Station in Northeastern China. [PDF]

Sensors (Basel), 2023
Liu S, Cheng S, Ma J, Xu X, Lv J, Jin J, Guo J, Yu D, Dai X.   +8 more
europepmc   +1 more source

Impact Assessment of COVID-19 Lockdown on Vertical Distributions of NO₂ and HCHO From MAX-DOAS Observations and Machine Learning Models. [PDF]

J Geophys Res Atmos, 2022
Zhang S, Wang S, Xue R, Zhu J, Tanvir A, Li D, Zhou B.   +6 more
europepmc   +1 more source