Výsledky vyhledávání - "Todd M Hoefen"

Akademický článek

Trace Elements in Stormflow, Ash, and Burned Soil following the 2009 Station Fire in Southern California.

Autor: Carmen A Burton, Todd M Hoefen, Geoffrey S Plumlee, Katherine L Baumberger, Adam R Backlin, Elizabeth Gallegos, Robert N Fisher

Publikováno v: PLoS ONE, Vol 11, Iss 5, p e0153372 (2016)

Most research on the effects of wildfires on stream water quality has focused on suspended sediment and nutrients in streams and water bodies, and relatively little research has examined the effects of wildfires on trace elements. The purpose of this

Externí odkaz: https://doaj.org/article/2bbbc065a91242ff828d4710ae2048e8

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Multiscale Hyperspectral Imaging of Hydrothermal Alteration in Yellowstone National Park, USA

Autor: Todd M. Hoefen, John M. Meyer, Raymond F. Kokaly, Keith E. Livo, JoAnn M. Holloway

Publikováno v: IGARSS

Imaging spectroscopy (hyperspectral imaging) data have mainly been used to map surface materials covering relatively small areas from airborne sensors over the past 20+ years. As part of the U.S. Geological Survey Integrated hyperspectral, geophysica

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::ed13152cba0781c8880ca3720c3f1030
https://doi.org/10.1109/igarss47720.2021.9553654

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Imaging Spectroscopy Applied to Mineral Mapping Over Large Areas: Impact of Residual Atmospheric Artefacts in Reflectance Spectra on Mineral Identification and Mapping

Autor: Will R. Gnesda, Evan M. Cox, Raymond F. Kokaly, John M. Meyer, Todd M. Hoefen, Gregg A. Swayze, K. Eric Livo, Bernard E. Hubbard

Publikováno v: IGARSS

Around the world, imaging spectroscopy (hyperspectral imaging) has been successfully applied to mapping surface minerals over small areas. In this paper, we examine one challenge to reliably mapping surface mineral composition over large areas: the i

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::0830775461f7088730e65e9f5d456120
https://doi.org/10.1109/igarss47720.2021.9553752

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Mineral Mapping of the Battle Mountain District, Nevada, USA, Using AVIRIS-Classic and SpecTIR Inc. AisaFENIX 1K Imaging Spectrometer Datasets

Autor: Raymond F. Kokaly, John Meyer, Elizabeth Holley, Todd M. Hoefen, Gregg A. Swayze

Publikováno v: IGARSS

Imaging spectroscopy (hyperspectral imaging) has been used to successfully map minerals at the outcrop, deposit, district, and regional scale. This contribution presents spectral-based mineral maps of the Battle Mountain mining district, Nevada, USA,

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::2e69c4a6f71aca9f9237f4323840c0ce
https://doi.org/10.1109/igarss47720.2021.9553125

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Imaging Spectroscopy for the Detection, Assessment and Monitoring of Natural and Anthropogenic Hazards

Autor: Roger N. Clark, Todd M. Hoefen, David R. Thompson, Raymond F. Kokaly, Gregg A. Swayze, C. R. Souza Filho, Veronique Carrere, Cindy Ong, Sabine Chabrillat, R. Marion

Publikováno v: Surveys in Geophysics

Natural and anthropogenic hazards have the potential to impact all aspects of society including its economy and the environment. Diagnostic data to inform decision-making are critical for hazard management whether for emergency response, routine moni

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5ef93e6c62010be3f82e3123c2f19c70
https://doi.org/10.1007/s10712-019-09523-1

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Asphaltene content and composition as a measure of Deepwater Horizon oil spill losses within the first 80days

Autor: S.H. Harris, C. T. Mills, Todd M. Hoefen, Raymond F. Kokaly, Gregg A. Swayze, T.L. Hannah, Geoffrey S. Plumlee, R.F. Dias, A. Warden, Michael D. Lewan, Paul G. Lillis, Z.K. Lowry

Publikováno v: Organic Geochemistry. 75:54-60

The composition and content of asphaltenes in spilled and original wellhead oils from the Deepwater Horizon (DWH) incident provide information on the amount of original oil lost and the processes most responsible for the losses within the first 80 da

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::509db8bb33398022bf09ef424306c468

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Mineral information at micron to kilometer scales: Laboratory, field, and remote sensing imaging spectrometer data from the orange hill porphyry copper deposit, Alaska, USA

Autor: Anupma Prakash, Todd M. Hoefen, Marcel Buchhorn, Richard J. Goldfarb, Raymond F. Kokaly, Michaela R. Johnson, Karen D. Kelley, Bernard E. Hubbard, Garth E. Graham

Publikováno v: IGARSS

Using imaging spectrometers at multiple scales, the USGS, in collaboration with the University of Alaska, is examining the application of hyperspectral data for identifying large-tonnage, base metal-rich deposits in Alaska. Recent studies have shown

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4eff78acdf153c3183ad0d0d28981df8
https://zenodo.org/record/1272975

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