LBA-ECO LC-35 Landsat ETM+ Derived Active Fire Masks, Brazilian Amazon: 2001-2003

This data set provides active fire detection images and associated summary information derived from Landsat 7 Enhanced Thematic Mapper Plus (ETM+) images for various locations in Brazilian Amazonia during 2001-2003. There are two image types: (1) GeoTiff images (masks) of active fire pixels, and (2) GeoTiff images (masks) of clustered active fire pixels where a distinct cluster identification number has been assigned to each individual group of contiguous active fire pixels. There are 122 GeoTiff format files of each type of fire mask; a total of 244 images. The spatial resolution of the fire mask images is 30 meters. ETM+ images were selected based on data quality, availability, as well as on the occurrence of vegetation fires.

In addition to the two image types, there are also two types of fire pixel summary information provided in text files: (1) one file of active fire pixel summary information derived from the active fire pixel images, and (2) 122 files of clustered active fire pixel information derived from individual clustered fire pixel masks, each of which correspond to a clustered image.

本数据集提供了基于Landsat 7增强型专题制图仪（ETM+）图像的活跃火情检测图像及其相关概要信息，数据来源于2001至2003年间巴西亚马逊地区的多个地点。数据集包含两种图像类型：（1）活跃火点GeoTiff图像（掩膜），以及（2）针对连续活跃火点群集的GeoTiff图像（掩膜），其中每个群集的连续活跃火点均被分配了独特的识别编号。每种类型的火情掩膜包含122个GeoTiff格式文件，总计244幅图像。火情掩膜图像的空间分辨率为30米。ETM+图像的选择基于数据质量、可获得性以及植被火灾的发生情况。

除此之外，文本文件中也提供了两种火点信息类型：（1）一张包含从活跃火点图像中提取的活跃火点概要信息文件，以及（2）122张包含从单个群集火点掩膜中提取的群集活跃火点信息文件，每张文件对应一幅群集图像。