Volcanic ash forecast – application to the May 2008 Chaitén eruption
We model the transport and subsequent deposition of ash from Chaitén volcano, Chile, during the first week of May 2008. The simulation couples the Weather Research and Forecasting (WRF) meteorological model with the FALL3D dispersion model. We only use semi-quantitative volcanological inputs based o...
| Main Authors: | , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Copernicus Publications
2008-08-01
|
| Series: | Natural Hazards and Earth System Sciences |
| Online Access: | http://www.nat-hazards-earth-syst-sci.net/8/927/2008/nhess-8-927-2008.pdf |
| _version_ | 1831557523064225792 |
|---|---|
| author | A. Folch O. Jorba J. Viramonte |
| author_facet | A. Folch O. Jorba J. Viramonte |
| author_sort | A. Folch |
| collection | DOAJ |
| description | We model the transport and subsequent deposition of ash from Chaitén volcano, Chile, during the first week of May 2008. The simulation couples the Weather Research and Forecasting (WRF) meteorological model with the FALL3D dispersion model. We only use semi-quantitative volcanological inputs based on the first eruption reports. We consider two different run types based on forecasted and hindcasted meteorological conditions. The first simulation type can be regarded as a syn-eruptive operational forecast for the 2–8 May period. We predict the evolution of the ash cloud position, the concentration of ash on air, the expected deposit thickness, and the ash accumulation rates at different localities. The comparison of model results with observed cloud arrival times and satellite images shows the goodness of the combined WRF+FALL3D forecast system and points out the feasibility of combining these two models for short-term forecast of volcanic clouds and ash fallout. |
| first_indexed | 2024-12-17T04:52:51Z |
| format | Article |
| id | doaj.art-7ae259426b9648a5970a84df5143f05f |
| institution | Directory Open Access Journal |
| issn | 1561-8633 1684-9981 |
| language | English |
| last_indexed | 2024-12-17T04:52:51Z |
| publishDate | 2008-08-01 |
| publisher | Copernicus Publications |
| record_format | Article |
| series | Natural Hazards and Earth System Sciences |
| spelling | doaj.art-7ae259426b9648a5970a84df5143f05f2022-12-21T22:02:50ZengCopernicus PublicationsNatural Hazards and Earth System Sciences1561-86331684-99812008-08-0184927940Volcanic ash forecast – application to the May 2008 Chaitén eruptionA. FolchO. JorbaJ. ViramonteWe model the transport and subsequent deposition of ash from Chaitén volcano, Chile, during the first week of May 2008. The simulation couples the Weather Research and Forecasting (WRF) meteorological model with the FALL3D dispersion model. We only use semi-quantitative volcanological inputs based on the first eruption reports. We consider two different run types based on forecasted and hindcasted meteorological conditions. The first simulation type can be regarded as a syn-eruptive operational forecast for the 2–8 May period. We predict the evolution of the ash cloud position, the concentration of ash on air, the expected deposit thickness, and the ash accumulation rates at different localities. The comparison of model results with observed cloud arrival times and satellite images shows the goodness of the combined WRF+FALL3D forecast system and points out the feasibility of combining these two models for short-term forecast of volcanic clouds and ash fallout.http://www.nat-hazards-earth-syst-sci.net/8/927/2008/nhess-8-927-2008.pdf |
| spellingShingle | A. Folch O. Jorba J. Viramonte Volcanic ash forecast – application to the May 2008 Chaitén eruption Natural Hazards and Earth System Sciences |
| title | Volcanic ash forecast – application to the May 2008 Chaitén eruption |
| title_full | Volcanic ash forecast – application to the May 2008 Chaitén eruption |
| title_fullStr | Volcanic ash forecast – application to the May 2008 Chaitén eruption |
| title_full_unstemmed | Volcanic ash forecast – application to the May 2008 Chaitén eruption |
| title_short | Volcanic ash forecast – application to the May 2008 Chaitén eruption |
| title_sort | volcanic ash forecast application to the may 2008 chaiten eruption |
| url | http://www.nat-hazards-earth-syst-sci.net/8/927/2008/nhess-8-927-2008.pdf |
| work_keys_str_mv | AT afolch volcanicashforecastapplicationtothemay2008chaiteneruption AT ojorba volcanicashforecastapplicationtothemay2008chaiteneruption AT jviramonte volcanicashforecastapplicationtothemay2008chaiteneruption |