气候变化领域集成服务门户(CCPortal): Geometric estimation of volcanic eruption column height from GOES-R near-limb imagery-Part 1: Methodology

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DOI	10.5194/acp-21-12189-2021
	Geometric estimation of volcanic eruption column height from GOES-R near-limb imagery-Part 1: Methodology
	Horváth A.; Carr J.L.; Girina O.A.; Wu D.L.; Bril A.A.; Mazurov A.A.; Melnikov D.V.; Hoshyaripour G.A.; Buehler S.A.
发表日期	2021
ISSN	1680-7316
起始页码	12189
结束页码	12206
卷号	21 期号:16
英文摘要	A geometric technique is introduced to estimate the height of volcanic eruption columns using the generally discarded near-limb portion of geostationary imagery. Such oblique observations facilitate a height-by-angle estimation method by offering close-to-orthogonal side views of eruption columns protruding from the Earth ellipsoid. Coverage is restricted to daytime point estimates in the immediate vicinity of the vent, which nevertheless can provide complementary constraints on source conditions for the modeling of near-field plume evolution. The technique is best suited to strong eruption columns with minimal tilting in the radial direction. For weak eruptions with severely bent plumes or eruptions with expanded umbrella clouds the radial tilt/expansion has to be corrected for either visually or using ancillary wind profiles. Validation on a large set of mountain peaks indicates a typical height uncertainty of ±500 m for near-vertical eruption columns, which compares favorably with the accuracy of the common temperature method. © 2021 Ákos Horváth et al.
语种	英语
scopus关键词	accuracy assessment; estimation method; geometry; geostationary satellite; GOES; model validation; satellite imagery; uncertainty analysis; volcanic eruption; volcanology; wind profile
来源期刊	ATMOSPHERIC CHEMISTRY AND PHYSICS
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/246653
作者单位	Meteorological Institute, Universität Hamburg, Hamburg, Germany; Carr Astronautics, Greenbelt, MD, United States; Institute of Volcanology and Seismology, Far East Branch of the Russian Academy of Sciences (IVS Feb RAS), Petropavlovsk-Kamchatsky, Russian Federation; Nasa Goddard Space Flight Center, Greenbelt, MD, United States; Space Research Institute of the Russian Academy of Sciences (SRI RAS), Moscow, Russian Federation; Institute of Meteorology and Climate Research, Karlsruhe Institute of Technology (KIT), Karlsruhe, Germany
推荐引用方式 GB/T 7714	Horváth A.,Carr J.L.,Girina O.A.,et al. Geometric estimation of volcanic eruption column height from GOES-R near-limb imagery-Part 1: Methodology[J],2021,21(16).
APA	Horváth A..,Carr J.L..,Girina O.A..,Wu D.L..,Bril A.A..,...&Buehler S.A..(2021).Geometric estimation of volcanic eruption column height from GOES-R near-limb imagery-Part 1: Methodology.ATMOSPHERIC CHEMISTRY AND PHYSICS,21(16).
MLA	Horváth A.,et al."Geometric estimation of volcanic eruption column height from GOES-R near-limb imagery-Part 1: Methodology".ATMOSPHERIC CHEMISTRY AND PHYSICS 21.16(2021).