東華大學圖書館 |

語系: 繁體中文

說明(常見問題)

回圖書館首頁

手機版館藏查詢

登入

回首頁

切換: 標籤 | MARC模式 | ISBD

Modeling Volcanic Ash and Sulfur Dio...

Egan, Sean D.

FindBook

Google Book

Amazon

博客來

Modeling Volcanic Ash and Sulfur Dioxide with the Weather Research Forecasting with Chemistry (WRF-Chem) Model.

紀錄類型:	書目-電子資源 : Monograph/item
正題名/作者:	Modeling Volcanic Ash and Sulfur Dioxide with the Weather Research Forecasting with Chemistry (WRF-Chem) Model./
作者:	Egan, Sean D.
出版者:	Ann Arbor : ProQuest Dissertations & Theses, : 2019,
面頁冊數:	184 p.
附註:	Source: Dissertations Abstracts International, Volume: 81-06, Section: B.
Contained By:	Dissertations Abstracts International81-06B.
標題:	Atmospheric chemistry. -
電子資源:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=27548424
ISBN:	9781392541661

Modeling Volcanic Ash and Sulfur Dioxide with the Weather Research Forecasting with Chemistry (WRF-Chem) Model.
Egan, Sean D.

Modeling Volcanic Ash and Sulfur Dioxide with the Weather Research Forecasting with Chemistry (WRF-Chem) Model. - Ann Arbor : ProQuest Dissertations & Theses, 2019 - 184 p.

Source: Dissertations Abstracts International, Volume: 81-06, Section: B.

Thesis (Ph.D.)--University of Alaska Fairbanks, 2019.

This item must not be sold to any third party vendors.

The Weather Research Forecasting with Chemistry (WRF-Chem) model is capable of modeling volcanic emissions of ash, sulfur dioxide and water vapor. Here, it is applied to eruptions from three volcanoes: the 2009 eruption of Kasatochi Volcano in Alaska, the 2010 eruption of Eyjafjallajokull in Iceland and the 2019 eruption of Raikoke in the Kurile Islands. WRF-Chem's ability to model volcanic emissions dispersion is validated through comparison of model output to remote sensing, in situ and field measurements. A sensitivity of the model to modeled plume height is discussed. This work also modifies the base WRF-Chem code in three ways and studies the effects of these modifications. First, volcanic ash aggregation parameterizations are added covering three modes of particle collisions through Brownian motion, differential settling and shear. Second, water vapor emissions from volcanic eruptions are added and coupled to the new aggregation scheme. The effects of these changes are assessed and found to produce volcanic ash concentrations in agreement with in situ measurements of plume concentrations and field measurements of tephra fallout. Third, the model is adapted to include multiple model initializations such that each is perturbed by selecting between two volcanic ash particle sizes and five initial plume heights. This modified WRF-Chem is nested in an application program interface that enables a new, automated, near real-time capability. This capability is assessed and the feasibility of its use as an augmenting tool to current operational VATD models is commented upon.

ISBN: 9781392541661Subjects--Topical Terms:

544140
Atmospheric chemistry.
Subjects--Index Terms:

Airborne hazards

Modeling Volcanic Ash and Sulfur Dioxide with the Weather Research Forecasting with Chemistry (WRF-Chem) Model.
LDR:02850nmm a2200385 4500 001 2272910
005 20201105110256.5
008 220629s2019 ||||||||||||||||| ||eng d
020 $a 9781392541661
035 $a (MiAaPQ)AAI27548424
035 $a AAI27548424
040 $a MiAaPQ $c MiAaPQ
100 1 $a Egan, Sean D. $3 3550335
245 1 0 $a Modeling Volcanic Ash and Sulfur Dioxide with the Weather Research Forecasting with Chemistry (WRF-Chem) Model.
260 1 $a Ann Arbor : $b ProQuest Dissertations & Theses, $c 2019
300 $a 184 p.
500 $a Source: Dissertations Abstracts International, Volume: 81-06, Section: B.
500 $a Advisor: Cahill, Catherine;Stuefer, Martin.
502 $a Thesis (Ph.D.)--University of Alaska Fairbanks, 2019.
506 $a This item must not be sold to any third party vendors.
520 $a The Weather Research Forecasting with Chemistry (WRF-Chem) model is capable of modeling volcanic emissions of ash, sulfur dioxide and water vapor. Here, it is applied to eruptions from three volcanoes: the 2009 eruption of Kasatochi Volcano in Alaska, the 2010 eruption of Eyjafjallajokull in Iceland and the 2019 eruption of Raikoke in the Kurile Islands. WRF-Chem's ability to model volcanic emissions dispersion is validated through comparison of model output to remote sensing, in situ and field measurements. A sensitivity of the model to modeled plume height is discussed. This work also modifies the base WRF-Chem code in three ways and studies the effects of these modifications. First, volcanic ash aggregation parameterizations are added covering three modes of particle collisions through Brownian motion, differential settling and shear. Second, water vapor emissions from volcanic eruptions are added and coupled to the new aggregation scheme. The effects of these changes are assessed and found to produce volcanic ash concentrations in agreement with in situ measurements of plume concentrations and field measurements of tephra fallout. Third, the model is adapted to include multiple model initializations such that each is perturbed by selecting between two volcanic ash particle sizes and five initial plume heights. This modified WRF-Chem is nested in an application program interface that enables a new, automated, near real-time capability. This capability is assessed and the feasibility of its use as an augmenting tool to current operational VATD models is commented upon.
590 $a School code: 0006.
650 4 $a Atmospheric chemistry. $3 544140
650 4 $a Atmospheric sciences. $3 3168354
650 4 $a Geophysics. $3 535228
653 $a Airborne hazards
653 $a Atmospheric modeling
653 $a Hazard mitigation
653 $a Pollution modeling
653 $a Volcanic emissions
653 $a WRF
690 $a 0371
690 $a 0725
690 $a 0373
710 2 $a University of Alaska Fairbanks. $b Chemistry & Biochemistry. $3 3437485
773 0 $t Dissertations Abstracts International $g 81-06B.
790 $a 0006
791 $a Ph.D.
792 $a 2019
793 $a English
856 4 0 $u http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=27548424