scholarly journals Observation of volcanic ash from Puyehue-Cordón Caulle with IASI

2012 ◽  
Vol 5 (3) ◽  
pp. 4249-4283 ◽  
Author(s):  
L. Klüser ◽  
T. Erbertseder ◽  
J. Meyer-Arnek
Keyword(s):  
Remote Sensing ◽  
Southern Hemisphere ◽  
Volcanic Ash ◽  
Singular Vector ◽  
Air Traffic ◽  
Emission Characteristics ◽  
Desert Dust ◽  
Atmospheric Sounding ◽  
Retrieval Scheme ◽  
Ash Plume

Abstract. On 4 June 2011 an eruption of the Chilean volcano complex Puyehue-Cordón Caulle injected large amounts of volcanic ash into the atmosphere and affected local life as well as hemisphere-wide air traffic. Observations of the Infrared Atmospheric Sounding Interferometer IASI flown on board of the MetOp satellite have been exploited to analyze the evolution of the ash plume around the Southern Hemisphere. A novel Singular Vector based retrieval methodology, originally developed for observation of desert dust over land and ocean, has been adapted to enable remote sensing of volcanic ash. Since IASI observations in the 8–12 μm window are applied in the retrieval, the method is insensitive to solar illumination and therefore yields twice the observation rate of the ash plume evolution compared to solar backscatter methods from polar orbiting satellites. The retrieval scheme, the emission characteristics and the circumpolar transport of the ash are examined by means of a source-receptor analysis.

scholarly journals Observation of volcanic ash from Puyehue–Cordón Caulle with IASI

2013 ◽  
Vol 6 (1) ◽  
pp. 35-46 ◽  
Author(s):  
L. Klüser ◽  
T. Erbertseder ◽  
J. Meyer-Arnek
Keyword(s):  
Remote Sensing ◽  
Southern Hemisphere ◽  
Volcanic Ash ◽  
Singular Vector ◽  
Air Traffic ◽  
Emission Characteristics ◽  
Desert Dust ◽  
Atmospheric Sounding ◽  
Retrieval Scheme ◽  
Ash Plume

Abstract. On 4 June 2011 an eruption of the Chilean volcano complex Puyehue–Cordón Caulle injected large amounts of volcanic ash into the atmosphere and affected local life as well as hemisphere-wide air traffic. Observations of the Infrared Atmospheric Sounding Interferometer (IASI) flown on board of the MetOp satellite have been exploited to analyze the evolution of the ash plume around the Southern Hemisphere. A novel singular vector-based retrieval methodology, originally developed for observation of desert dust over land and ocean, has been adapted to enable remote sensing of volcanic ash. Since IASI observations in the 8–12 μm window are applied in the retrieval, the method is insensitive to solar illumination and therefore yields twice the observation rate of the ash plume evolution compared to solar backscatter methods from polar orbiting satellites. The retrieval scheme, the emission characteristics and the circumpolar transport of the ash are examined by means of a source–receptor analysis.

Remote sensing measurements of the volcanic ash plume over Poland in April 2010

2012 ◽  
Vol 48 ◽  
pp. 66-75 ◽  
Author(s):  
K.M. Markowicz ◽  
T. Zielinski ◽  
A. Pietruczuk ◽  
M. Posyniak ◽  
O. Zawadzka ◽  
...  
Keyword(s):  
Remote Sensing ◽  
Volcanic Ash ◽  
Ash Plume

Optimization of the European air traffic during Grímsvötn eruption in 2011 based on advanced volcanic ash forecast

2013 ◽  
Author(s):  
Ruzica Vujasinovic ◽  
Angela R. Schmitt ◽  
Julia Zillies ◽  
Vilmar Mollwitz ◽  
Christiane Edinger ◽  
...  
Keyword(s):  
Volcanic Ash ◽  
Air Traffic

A Simulation Environment for Analyzing the Impact of Volcanic Ash on Trajectory-Based Air Traffic Management

2013 ◽  
Author(s):  
Angela Schmitt ◽  
Ruzica Vujasinovic ◽  
Christiane Edinger ◽  
Julia Zillies ◽  
Vilmar Mollwitz
Keyword(s):  
Traffic Management ◽  
Volcanic Ash ◽  
Air Traffic Management ◽  
Air Traffic ◽  
Simulation Environment ◽  
The Impact

scholarly journals ANALISIS EJEKSI DAN DISPERSI AWAN DEBU VULKANIK GUNUNG SEMERU JAWA TIMUR

2012 ◽  
Author(s):  
Agus Krisbiantoro
Keyword(s):  
Remote Sensing ◽  
Volcanic Ash ◽  
Landsat Tm

Volcanic Ash Clouds atau awan debu vulkanik merupakan salah satu aktivitas yang ditunjukkan oleh gunungapi. Karakterisasi awan debu vulkanik suatu gunung api merupakan upaya monitoring aktivitas suatu gunung api. Monitoring aktivitas gunung api merupakan bagian dari penanggulangan dan kesiapsiagaan terhadap bencana atau bahaya yang diakibatkan oleh aktivitas gunungapi. Gunung Semeru sebagai gunungapi teraktif di Indonesia secara periodik mengeluarkan atau mengejeksikan material debu vulkanik ke atmosfer yang membentuk awan vulkanik. Dampak yang ditimbulkan oleh awan debu vulkanik Gunung Semeru tidak hanya mengancam kehidupan manusia tetapi juga mengancam sumber kehidupan manusia. Teknologi penginderaan jauh atau remote sensing digunakan untuk mengidentifikasi karateristik spketral awan debu vulkanik Gunung Semeru. Data yang digunakan dalam penelitian ini meliputi Citra Satelit Landsat TM perekaman tahun 2001 sampai dengan 2010 dan Data Lidar Satelit CALIPSO. <br />Kata Kunci: Awan debu vulkanik, Mitigasi, Remote Sensing, Citra Satelit<br /><br />

scholarly journals Optimal ash particle refractive index model for simulating the brightness temperature spectrum of volcanic ash clouds from satellite infrared sounder measurements

2021 ◽  
Author(s):  
Hiroshi Ishimoto ◽  
Masahiro Hayashi ◽  
Yuzo Mano
Keyword(s):  
Refractive Index ◽  
Brightness Temperature ◽  
Volcanic Ash ◽  
Satellite Measurements ◽  
Temperature Spectrum ◽  
Index Model ◽  
Rock Types ◽  
Volcanic Events ◽  
Atmospheric Sounding ◽  
Using Data

Abstract. Using data from the Infrared Atmospheric Sounding Interferometer (IASI) measurements of volcanic ash clouds and radiative transfer calculations, we identify the optimal refractive index model for simulating the measured brightness temperature spectrum of volcanic ash material. We assume that the optimal refractive index model has the smallest root mean square of the brightness temperature difference between measurements and simulations for channels in the wavenumber range of 750–1400 cm−1 and compare 21 refractive index models for optical properties of ash particles, including recently published models. From the results of numerical simulations for 164 pixels of IASI measurements for ash clouds from 11 volcanoes, we found that the measured brightness temperature spectrum could be well simulated using certain newly established refractive index models. In the cases of Eyjafjallajökull and Grímsvötn ash clouds, the optimal refractive index models determined through numerical simulation correspond to those deduced from the chemical composition of ash samples for the same volcanic eruption events. This finding suggests that infrared sounder measurement of volcanic ash clouds is an effective approach to estimating the optimal refractive index model. However, discrepancies between the estimated refractive index models based on satellite measurements and the associated volcanic rock types were observed for some volcanic events.

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