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Sentinel-2/MSI データを用いたインド・パンジャーブ州における野焼き火元画素の抽出条件
https://chikyu.repo.nii.ac.jp/records/4788
https://chikyu.repo.nii.ac.jp/records/478837936cf7-25f7-49ca-acc8-774b4f7c86eb
| 名前 / ファイル | ライセンス | アクション |
|---|---|---|
Sentinel-2/MSI データを用いたインド・パンジャーブ州における野焼き火元画素の抽出条件 (12.8 MB)
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| Item type | 研究報告 / Research Bulletin Paper(1) | |||||
|---|---|---|---|---|---|---|
| 公開日 | 2023-04-14 | |||||
| タイトル | ||||||
| タイトル | Sentinel-2/MSI データを用いたインド・パンジャーブ州における野焼き火元画素の抽出条件 | |||||
| タイトル | ||||||
| タイトル | Selection criteria of agricultural burning pixels using Sentinel-2/MSI data in Punjab, India | |||||
| 言語 | en | |||||
| 言語 | ||||||
| 言語 | jpn | |||||
| キーワード | ||||||
| 主題Scheme | Other | |||||
| 主題 | 短波長赤外の反射率 | |||||
| キーワード | ||||||
| 主題Scheme | Other | |||||
| 主題 | 植生指標NDVI | |||||
| キーワード | ||||||
| 主題Scheme | Other | |||||
| 主題 | 季節変化 | |||||
| キーワード | ||||||
| 言語 | en | |||||
| 主題Scheme | Other | |||||
| 主題 | Reflectance of short wavelength infrared | |||||
| キーワード | ||||||
| 言語 | en | |||||
| 主題Scheme | Other | |||||
| 主題 | vegetation index NDVI | |||||
| キーワード | ||||||
| 言語 | en | |||||
| 主題Scheme | Other | |||||
| 主題 | seasonal changes | |||||
| 資源タイプ | ||||||
| 資源タイプ識別子 | http://purl.org/coar/resource_type/c_e059 | |||||
| 資源タイプ | learning object | |||||
| 著者 |
于, 琨
× 于, 琨× 村松, 加奈子× YU, Kun× MURAMATSU, Kanako |
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| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | High concentrations of PM2.5 in Delhi, India, are a health concern. Main emission sources of PM2.5 are smoke from factories and exhaust gas from cars, but considerable amount of smoke from burning of agricultural residues is significant. Satellite observation is useful to monitor the fires from burning agricultural residues. We examined characteristics and seasonal changes in spectral reflectance and normalized vegetation index (NDVI) at the origin-of-fire by burning of agricultural residues. The reflectance in shortwave infrared (SWIR) of 2190 nm (RSWIR2190) was higher than 0.4, and the ratio between two SWIR (RSWIR2190/ RSWIR1610) was higher than 1.25. That was specific characteristic for the origin-of-fire. Most landcover such as water, vegetation and city area did not have that characteristic, but specific city area which had relatively high temperature such as brickyards had similar characteristics of RSWIR2190 was around 0.4. It was needed to remove hot pixels such as brickyards from candidate pixels of origin-of-fires. To confirm the pixel being farm by detecting vegetation signal, the condition was useful that the number of times with NDVI being higher than 0.85 was greater than 1 in a year. The pixels after agricultural burning showed gray in natural color composite image, and the spectral reflectance pattern was different from that in harvest and post-harvest time. From these results, it is suggested that after burning area could be extracted from satellite image, even if satellite could not observe on time of burning agricultural area. Further study with using ground survey data is needed to identify the agricultural burning pixels and estimate identify accuracy. | |||||
| 書誌情報 |
Aakash Working Paper en : Aakash Working Paper 号 2, p. 1-18, 発行日 2023-03 |
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| 出版者 | ||||||
| 出版者 | Aakash Project of Research Institute for Humanity and Nature | |||||
| ISSN | ||||||
| 収録物識別子タイプ | ISSN | |||||
| 収録物識別子 | 2436-9888 (Online) | |||||
| 権利 | ||||||
| 権利情報 | Aakash Project of Research Institute for Humanity and Nature | |||||
| 情報源 | ||||||
| 関連名称 | https://aakash-rihn.org/workingpaper/ | |||||
| 関連サイト | ||||||
| 識別子 | Aakashプロジェクト | https://aakash-rihn.org/ | |||||
| 識別子タイプ | URI | |||||
| 関連サイト | ||||||
| 識別子 | 総合地球環境学研究所 | https://www.chikyu.ac.jp/ | |||||
| 識別子タイプ | URI | |||||
| フォーマット | ||||||
| 内容記述タイプ | Other | |||||
| 内容記述 | application/pdf | |||||
| 著者版フラグ | ||||||
| 出版タイプ | VoR | |||||
| 出版タイプResource | http://purl.org/coar/version/c_970fb48d4fbd8a85 | |||||
