The 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. This product is generated from the MODIS/MOD09GA surface reflectance composites.
烧伤面积指数(BAI)由红色和近红外波段产生,测量每个像素与参考光谱点(测得的木炭反射率)的光谱距离。这个指数的目的是强调火后图像中的木炭信号。详见Chuvieco等人(2002)。该产品是由MODIS/MOD09GA表面反射率合成物生成的。
Dataset Availability
2000-02-24T00:00:00 - 2017-03-30T00:00:00
Dataset Provider
Collection Snippet
ee.ImageCollection("MODIS/MOD09GA_BAI")
Bands Table
Name | Description | Resolution |
BAI | Burn Area Index | 463.312716528 meters |
使用说明:
MODIS data and products acquired through the LP DAAC have no restrictions on subsequent use, sale, or redistribution.
代码:
var dataset = ee.ImageCollection('MODIS/MCD43A4_006_BAI') .filter(ee.Filter.date('2018-04-01', '2018-06-01')); var scaled = dataset.select('BAI'); var scaledVis = { min: 0.0, max: 100.0, }; Map.setCenter(-7.03125, 31.0529339857, 2); Map.addLayer(scaled, scaledVis, 'Scaled');