File:Remotely sensed density measurements of volcanic sulfur dioxide plumes using a spectral long wave infrared imager (IA remotelysensedde109454879).pdf
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Summary[edit]
Remotely sensed density measurements of volcanic sulfur dioxide plumes using a spectral long wave infrared imager
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| Author |
Mares, Aimee Gail |
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| Title |
Remotely sensed density measurements of volcanic sulfur dioxide plumes using a spectral long wave infrared imager |
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| Publisher |
Monterey, California. Naval Postgraduate School |
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| Description |
This thesis examines the process of detecting and quantifying volcanic SO2 plumes using the Airborne Hyperspectral Infrared Imager (AHI) developed by the University of Hawaii. AHI was flown over Pu'u'O'o Vent of Kilauea Volcano in Hawaii to collect data on SO2 plumes. In conjunction with these observations, data were taken with the Hawaii Volcano Observatory's Correlation Spectrometer (COSPEC) and University of Hawaii's FLYSPEC. These are ultraviolet remote sensors with a successful history of monitoring volcanic SO2 plumes at ~0.3u. AHI is a LWIR pushbroom imager sensitive to the 7.5 - 11.5u region. Spectral analysis and mapping tools were used to identify and classify the SO2 plume in both radiance and emissive space. MODTRAN was used to model the radiance observed by the sensor as it looked to the ground through an SO2 plume. A spectral library of radiance profiles with varying ground surface temperatures and SO2 concentrations was developed, and the AHI data fitted to the varying model profiles. Reasonable values of SO2 emission were obtained, though the values directly over the vent obtained by AHI were much higher than those obtained by the UV sensors some distance away. Subjects: Remote sensing; Infrared imaging; Hyperspectral; Airborne remote sensing; Long wave infrared (LWIR); Ultraviolet (UV); Sulfur dioxide; Gas detection; Volcanic plumes; Airborne hyperspectral infrared imager (AHI); FLYSPEC |
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| Language | English | |
| Publication date | September 2002 | |
| Current location |
IA Collections: navalpostgraduateschoollibrary; fedlink |
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| Accession number |
remotelysensedde109454879 |
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| Source | ||
| Permission (Reusing this file) |
This publication is a work of the U.S. Government as defined in Title 17, United States Code, Section 101. As such, it is in the public domain, and under the provisions of Title 17, United States Code, Section 105, may not be copyrighted. | |
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This work is in the public domain in the United States because it is a work prepared by an officer or employee of the United States Government as part of that person’s official duties under the terms of Title 17, Chapter 1, Section 105 of the US Code.
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| This file has been identified as being free of known restrictions under copyright law, including all related and neighboring rights. | ||
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| current | 07:42, 24 July 2020 |  | 1,275 × 1,650, 147 pages (29.52 MB) | Fæ (talk | contribs) | FEDLINK - United States Federal Collection remotelysensedde109454879 (User talk:Fæ/IA books#Fork8) (batch 1993-2020 #26420) |
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