焼失面積指数（BAI）は、赤色バンドと近赤外バンドから生成され、各ピクセルの基準スペクトル点（木炭の測定反射率）からのスペクトル距離を測定します。このインデックスは、火災後の画像で炭のシグナルを強調することを目的としています。詳しくは、Chuvieco et al.（2002 年）をご覧ください。このプロダクトは、MODIS/006/MOD09GA 地表反射率コンポジットから生成されます。
バンド
帯域
名前
ピクセルサイズ
説明
BAI
463.313 メートル
焼損面積指数
利用規約
利用規約
LP DAAC を通じて取得した MODIS データとプロダクトには、その後の使用、販売、再配布に関する制限はありません。
[null,null,[],[[["\u003cp\u003eThe MODIS/MOD09GA_006_BAI dataset provides daily Burn Area Index (BAI) globally from February 24, 2000 to February 17, 2023.\u003c/p\u003e\n"],["\u003cp\u003eBAI is calculated using Red and Near-IR bands to highlight charcoal signals in post-fire imagery.\u003c/p\u003e\n"],["\u003cp\u003eThe dataset is generated from MODIS/006/MOD09GA surface reflectance composites with a pixel size of 463.313 meters.\u003c/p\u003e\n"],["\u003cp\u003eProvided by Google Earth Engine, this dataset is free for research, education, and non-profit use.\u003c/p\u003e\n"],["\u003cp\u003eMODIS data and products acquired through the LP DAAC have no restrictions on subsequent use, sale, or redistribution.\u003c/p\u003e\n"]]],["The MODIS/MOD09GA_006_BAI dataset, available from 2000-02-24 to 2023-02-17 via Google Earth Engine, provides a daily Burn Area Index (BAI) at a 463.313-meter pixel resolution, globally. The BAI, derived from Red and Near-IR bands, highlights charcoal signals in post-fire imagery. Users can access and explore this data, and associated code snippets, within the Earth Engine platform, with no restrictions on its subsequent use, sale, or redistribution.\n"],null,["# MODIS Terra Daily BAI\n\nDataset Availability\n: 2000-02-24T00:00:00Z--2023-02-17T00:00:00Z\n\nDataset Provider\n:\n\n\n [Google](https://earthengine.google.com/)\n\nCadence\n: 1 Day\n\nTags\n:\n bai \n daily \n global \n mod09ga \n modis \n surface-reflectance \n terra \n usgs \nvegetation-indices \n\n#### Description\n\nThe Burn Area Index (BAI) is generated from the Red and\nNear-IR bands, and measures the spectral distance of each pixel from a\nreference spectral point (the measured reflectance of charcoal). This\nindex is intended to emphasize the charcoal signal in post-fire\nimages. See\n[Chuvieco et al. (2002)](https://www.tandfonline.com/doi/abs/10.1080/01431160210153129)\nfor details. This product is generated from the MODIS/006/MOD09GA surface reflectance composites.\n\n### Bands\n\n**Bands**\n\n| Name | Pixel Size | Description |\n|-------|----------------|-----------------|\n| `BAI` | 463.313 meters | Burn Area Index |\n\n### Terms of Use\n\n**Terms of Use**\n\nMODIS data and products acquired through the LP DAAC have no restrictions on subsequent use, sale, or redistribution.\n\n### Explore with Earth Engine\n\n| **Important:** Earth Engine is a platform for petabyte-scale scientific analysis and visualization of geospatial datasets, both for public benefit and for business and government users. Earth Engine is free to use for research, education, and nonprofit use. To get started, please [register for Earth Engine access.](https://console.cloud.google.com/earth-engine)\n\n### Code Editor (JavaScript)\n\n```javascript\nvar dataset = ee.ImageCollection('MODIS/MOD09GA_006_BAI')\n .filter(ee.Filter.date('2018-04-01', '2018-06-01'));\nvar scaled = dataset.select('BAI');\nvar scaledVis = {\n min: 0.0,\n max: 100.0,\n};\nMap.setCenter(-7.03125, 31.0529339857, 2);\nMap.addLayer(scaled, scaledVis, 'Scaled');\n```\n[Open in Code Editor](https://code.earthengine.google.com/?scriptPath=Examples:Datasets/MODIS/MODIS_MOD09GA_006_BAI) \n[MODIS Terra Daily BAI](/earth-engine/datasets/catalog/MODIS_MOD09GA_006_BAI) \nThe Burn Area Index (BAI) is generated from the Red and Near-IR bands, and measures the spectral distance of each pixel from a reference spectral point (the measured reflectance of charcoal). This index is intended to emphasize the charcoal signal in post-fire images. See Chuvieco et al. (2002) for details. ... \nMODIS/MOD09GA_006_BAI, bai,daily,global,modis,surface-reflectance,terra,usgs,vegetation-indices \n2000-02-24T00:00:00Z/2023-02-17T00:00:00Z \n-90 -180 90 180 \nGoogle Earth Engine \nhttps://developers.google.com/earth-engine/datasets\n\n- [](https://doi.org/https://earthengine.google.com/)\n- [](https://doi.org/https://developers.google.com/earth-engine/datasets/catalog/MODIS_MOD09GA_006_BAI)"]]
