This dataset is directory format data after the original downloaded gz format data files are decompressed. Each unpacked data directory contains 14 data files, including 7 band TIF files, 1 band quality evaluation TIF file, 4 txt text files, 1 jpg file and README.GTF file. The Landsat project was initiated by the USGS of the United States to provide reliable quality remote sensing data for research and application activities. Landsat 1, 2 and 3 payloads are multispectral (MSS) sensors, Landsat 4 and 5 payloads are both multispectral (MSS) and thematic mapper (TM) sensors, and Landsat 7 payloads are enhanced thematic mapper (ETM+) The data in this dataset is Landsat 5 data.

This dataset comes from the USGS EarthExplorer data website. The main processing processes include: Enter the regional latitude and longitude, time range, and cloud cover conditions on the USGS EarthExplorer data website to obtain a data list within the region. From the data list, select satellite image data with less cloud cover and reliable quality by viewing image thumbnails one by one, and add it to the data basket. After ordering, the data website returns the data address, and downloads the data with the help of a batch download tool. After the data download is completed, data verification and reorganization will be carried out to delete invalid data that is not fully downloaded and repeatedly downloaded data, and verify the integrity of the downloaded data.

This dataset is Landsat TM sensor data from Landsat 5, with a spatial resolution of 30 meters in the visible light band and 120 meters in the thermal infrared band. The TM sensor covers 7 bands (visible light to thermal infrared). The TM sensor is designed with high signal-to-noise ratio to support the capture of weak radiation signals (such as vegetation coverage monitoring). The Landsat series satellites have a period of 16 days and support dynamic environmental monitoring. This data set is taken from the segmented data (i.e., one period a year) with the lowest cloud cover and the best phase (the best vegetation growth) among the data available during the year. It covers a total of 14 scenes segmented data across the tower. This data set collected 11 scenes segmented TM data that match the regional scope and time range, and the integrity of the data set is 78.6%