| Item type |
学術雑誌論文 / Journal Article(1) |
| 公開日 |
2015-03-26 |
| タイトル |
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タイトル |
Modeling angular-dependent spectral emissivity of snow and ice in the thermal infrared atmospheric window |
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言語 |
en |
| 言語 |
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言語 |
eng |
| 資源タイプ |
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資源タイプ識別子 |
http://purl.org/coar/resource_type/c_6501 |
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資源タイプ |
journal article |
| 著者 |
堀, 雅裕
Aoki, Teruo
谷川, 朋範
Hachikubo, Akihiro
Sugiura, Konosuke
Kuchiki, Katsuyuki
Niwano, Masashi
Hori, Masahiro
Aoki, Teruo
Tanikawa, Tomonori
Hachikubo, Akihiro
Sugiura, Konosuke
Kuchiki, Katsuyuki
Niwano, Masashi
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| 著者所属 |
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宇宙航空研究開発機構(JAXA) |
| 著者所属 |
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気象研究所(MRI) |
| 著者所属 |
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宇宙航空研究開発機構(JAXA) |
| 著者所属 |
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北見工業大学 |
| 著者所属 |
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富山大学 |
| 著者所属 |
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気象研究所(MRI) |
| 著者所属 |
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気象研究所(MRI) |
| 著者所属(英) |
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en |
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Japan Aerospace Exploration Agency(JAXA) |
| 著者所属(英) |
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en |
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Meteorological Research Institute(MRI) |
| 著者所属(英) |
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en |
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Japan Aerospace Exploration Agency(JAXA) |
| 著者所属(英) |
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en |
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Kitami Institute of Technology |
| 著者所属(英) |
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en |
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University of Toyama |
| 著者所属(英) |
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en |
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Meteorological Research Institute(MRI) |
| 著者所属(英) |
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en |
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Meteorological Research Institute(MRI) |
| 出版者(英) |
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出版者 |
Optical Society of America |
| 書誌情報 |
en : Applied Optics
巻 52,
号 30,
p. 7243-7255,
発行日 2013-10
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| 抄録(英) |
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内容記述タイプ |
Other |
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内容記述 |
A model of angular-dependent emissivity spectra of snow and ice in the 8?14 μm atmospheric window is constructed. Past field research revealed that snow emissivity varies depending on snow grain size and the exitance angle. Thermography images acquired in this study further revealed that not only welded snow particles such as sun crust, but also disaggregated particles such as granular snow and dendrite crystals exhibit high reflectivity on their crystal facets, even when the bulk snow surface exhibits blackbody-like behavior as a whole. The observed thermal emissive behaviors of snow particles suggest that emissivity of the bulk snow surface can be expressed by a weighted sum of two emissivity components: those of the specular and blackbody surfaces. Based on this assumption, a semi-empirical emissivity model was constructed; it is expressed by a linear combination of specular and blackbody surfaces’ emissivities with a weighting parameter characterizing the specularity of the bulk surface. Emissivity spectra calculated using the model succeeded in reproducing the past in situ measured directional spectra of various snow types by employing a specific weighting parameter for each snow type. |
| ISSN |
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収録物識別子タイプ |
ISSN |
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収録物識別子 |
0003-6935 |
| 書誌レコードID |
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収録物識別子タイプ |
NCID |
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収録物識別子 |
AA00543409 |
| DOI |
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関連タイプ |
isIdenticalTo |
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識別子タイプ |
DOI |
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関連識別子 |
http://dx.doi.org/10.1364/AO.52.007243 |
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関連名称 |
info:doi/10.1364/AO.52.007243 |
| 権利 |
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権利情報 |
(C)2013 Optical Society of America |
| 著者版フラグ |
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出版タイプ |
VoR |
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出版タイプResource |
http://purl.org/coar/version/c_970fb48d4fbd8a85 |
| 資料番号 |
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内容記述タイプ |
Other |
|
内容記述 |
資料番号: PA1410023000 |