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Euiho Shin, Young-seek Chung, Seonkyo Kim, Cheolsun Park and Jungsuek Oh
This study proposes broadband direction (DOA) estimation through discrete Fourier transform (DFT) extrapolation. We used DFT extrapolation in the lower band and extended the sampled data to reduce the beam width in the spectral domain and improved the ac...
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Rui Valente de Almeida, Nuno Matela and Pedro Vieira
TomoSim comes as part of project ATMOS, a miniaturised Differential Optical Absorption Spectroscopy (DOAS) tomographic atmospheric evaluation device, designed to fit a small drone. During the development of the project, it became necessary to write a sim...
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Philipson Bani, Etienne Le Glas, Kristianto, Alessandro Aiuppa, Marcello Bitetto and Devy Kamil Syahbana
Awu is a remote and little known active volcano of Indonesia located in the northern part of Molucca Sea. It is the northernmost active volcano of the Sangihe arc with 18 eruptions in less than 4 centuries, causing a cumulative death toll of 11,048. Two ...
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Melissa A. Pfeffer, Baldur Bergsson, Sara Barsotti, Gerður Stefánsdóttir, Bo Galle, Santiago Arellano, Vladimir Conde, Amy Donovan, Evgenia Ilyinskaya, Mike Burton, Alessandro Aiuppa, Rachel C. W. Whitty, Isla C. Simmons, Þórður Arason, Elín B. Jónasdóttir, Nicole S. Keller, Richard F. Yeo, Hermann Arngrímsson, Þorsteinn Jóhannsson, Mary K. Butwin, Robert A. Askew, Stéphanie Dumont, Sibylle Von Löwis, Þorgils Ingvarsson, Alessandro La Spina, Helen Thomas, Fred Prata, Fausto Grassa, Gaetano Giudice, Andri Stefánsson, Frank Marzano, Mario Montopoli and Luigi MereuaddShow full author listremoveHide full author list
The 2014?2015 Bárðarbunga fissure eruption at Holuhraun in central Iceland was distinguished by the high emission of gases, in total 9.6 Mt SO2, with almost no tephra. This work collates all ground-based measurements of this extraordinary eruption cloud ...
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Daniel-Eduard Constantin, Alexis Merlaud, Mirela Voiculescu, Carmelia Dragomir, Lucian Georgescu, Francois Hendrick, Gaia Pinardi and Michel Van Roozendael
In this study, we report on airborne Differential Optical Absorption Spectroscopy (DOAS) observations of tropospheric NO2 using an Ultralight Trike (ULT) and associated flux calculations. The instrument onboard the ULT was developed for measuring the tro...
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Jonas Gliß, Kerstin Stebel, Arve Kylling, Anna Solvejg Dinger, Holger Sihler and Aasmund Sudbø
Ultraviolet (UV) SO2 cameras have become a common tool to measure and monitor SO2 emission rates, mostly from volcanoes but also from anthropogenic sources (e.g., power plants or ships). Over the past decade, the analysis of UV SO2 camera data has seen m...
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Edgar Josué Arellano Hernández,Arne Krüeger,Claudia Inés Rivera Cárdenas,Wolfgang Stremme,Martina Michaela Friedrich,Alejandro Bezanilla,Michel Grutter
Pág. 157 - 167
An instrument based on the Multi Axis Differential Optical Absorption Spectroscopy (MAX-DOAS) technique was designed and constructed to measure scattered sunlight in the UV-visible region at different elevation angles. Slant column densities (SCDs) of sp...
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Claudia Rivera,Wolfgang Stremme,Michel Grutter
The use of satellite data in combination with ground-based measurements can provide valuable information about atmospheric chemistry and air quality. In this study, ground-based Differential Optical Absorption Spectroscopy (DOAS) measurements of nitrogen...
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MARÍA ESTHER RUÍZ,JOSÉ LUIS ARRIAGA,ISIDORO GARCÍA
Since 1991, volatile organic compounds (VOC) have been determined in Mexico City metropolitan area (MCMA) using different analyzing methods. samples collected in catridges and canisters are analyzed by gc-ms and hplc. continuos monitoring by a long path ...
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