Which sensor is referred to as TM in the Landsat series?

The Thematic Mapper sensor, commonly referred to as TM, is a key instrument that was onboard the Landsat 4 and Landsat 5 satellites. It was designed specifically for capturing high-resolution multispectral imagery of the earth's surface, contributing significantly to various applications in agriculture, forestry, land use planning, and environmental monitoring. The TM sensor operates across several spectral bands, allowing for detailed analysis of land cover and land use change.

The designation 'Thematic Mapper' reflects its purpose of mapping thematic information, such as vegetation cover and water bodies, which is essential for resource management and environmental assessment. This emphasizes the importance of the TM sensor in providing valuable data for both scientific research and practical applications. The choice of TM as the correct answer highlights this significance in the context of the Landsat program, which has been crucial for remote sensing since its inception.