Att studera askmoln med GNSS
Abstract In this report the technique of observing volcanic ash in the atmosphere by analyzing SNR data (Signal-to-Noise Ratio) from GNSS (Global Navigation Satellite System) stations was investigated. The functionality of the method was confirmed by studying volcanic plumes from three areas: Icelan...
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ftchalmersuniojs:oai:odr.chalmers.se:20.500.12380/199500 2023-07-30T04:04:25+02:00 Att studera askmoln med GNSS Nguyen, Björnborg Sjöberg, Mattias Chalmers tekniska högskola / Institutionen för rymd- och geovetenskap Chalmers University of Technology / Department of Earth and Space Sciences 2019-07-03T13:24:07Z application/pdf https://hdl.handle.net/20.500.12380/199500 eng eng https://hdl.handle.net/20.500.12380/199500 Energi Geovetenskap och miljövetenskap Klimatforskning Energy Earth and Related Environmental Sciences Climate Research M2 2019 ftchalmersuniojs https://doi.org/20.500.12380/199500 2023-07-08T19:57:35Z Abstract In this report the technique of observing volcanic ash in the atmosphere by analyzing SNR data (Signal-to-Noise Ratio) from GNSS (Global Navigation Satellite System) stations was investigated. The functionality of the method was confirmed by studying volcanic plumes from three areas: Iceland, Sicily and Indonesia. A number of programs were written for data analysis. The timing and direction of the observed detections for Eyjafjallaj¨okull (2010) and Etna (2006) proved to fit with data from other detection techniques. During early 2014 several volcanoes (i.a. Sinabung, Kelut and Merapi) in Indonesia were erupting relatively simultaneously. A large number of volcanic plumes could therefore be detected there. By combining data from several satellites and receivers information about the location of the volcanic ash plumes could be obtained. The advantages of this technique include its relatively low costs and its potential for continuous and comprehensive observation opportunities. In the future there are good opportunities for SNR data analysis from GNSS stations to function as a complement to current detection techniques. Other/Unknown Material Iceland Chalmers University of Technology: Chalmers Open Digital Repository (ODR) Etna ENVELOPE(-19.191,-19.191,63.706,63.706) |
institution |
Open Polar |
collection |
Chalmers University of Technology: Chalmers Open Digital Repository (ODR) |
op_collection_id |
ftchalmersuniojs |
language |
English |
topic |
Energi Geovetenskap och miljövetenskap Klimatforskning Energy Earth and Related Environmental Sciences Climate Research |
spellingShingle |
Energi Geovetenskap och miljövetenskap Klimatforskning Energy Earth and Related Environmental Sciences Climate Research Nguyen, Björnborg Sjöberg, Mattias Att studera askmoln med GNSS |
topic_facet |
Energi Geovetenskap och miljövetenskap Klimatforskning Energy Earth and Related Environmental Sciences Climate Research |
description |
Abstract In this report the technique of observing volcanic ash in the atmosphere by analyzing SNR data (Signal-to-Noise Ratio) from GNSS (Global Navigation Satellite System) stations was investigated. The functionality of the method was confirmed by studying volcanic plumes from three areas: Iceland, Sicily and Indonesia. A number of programs were written for data analysis. The timing and direction of the observed detections for Eyjafjallaj¨okull (2010) and Etna (2006) proved to fit with data from other detection techniques. During early 2014 several volcanoes (i.a. Sinabung, Kelut and Merapi) in Indonesia were erupting relatively simultaneously. A large number of volcanic plumes could therefore be detected there. By combining data from several satellites and receivers information about the location of the volcanic ash plumes could be obtained. The advantages of this technique include its relatively low costs and its potential for continuous and comprehensive observation opportunities. In the future there are good opportunities for SNR data analysis from GNSS stations to function as a complement to current detection techniques. |
author2 |
Chalmers tekniska högskola / Institutionen för rymd- och geovetenskap Chalmers University of Technology / Department of Earth and Space Sciences |
format |
Other/Unknown Material |
author |
Nguyen, Björnborg Sjöberg, Mattias |
author_facet |
Nguyen, Björnborg Sjöberg, Mattias |
author_sort |
Nguyen, Björnborg |
title |
Att studera askmoln med GNSS |
title_short |
Att studera askmoln med GNSS |
title_full |
Att studera askmoln med GNSS |
title_fullStr |
Att studera askmoln med GNSS |
title_full_unstemmed |
Att studera askmoln med GNSS |
title_sort |
att studera askmoln med gnss |
publishDate |
2019 |
url |
https://hdl.handle.net/20.500.12380/199500 |
long_lat |
ENVELOPE(-19.191,-19.191,63.706,63.706) |
geographic |
Etna |
geographic_facet |
Etna |
genre |
Iceland |
genre_facet |
Iceland |
op_relation |
https://hdl.handle.net/20.500.12380/199500 |
op_doi |
https://doi.org/20.500.12380/199500 |
_version_ |
1772815837066952704 |