The Landsat Thematic Mapper (TM) sensor was carried on Landsat 4 and Landsat 5, and created images consisting of six spectral bands with a spatial resolution of 30 meters for Bands 1-5 and 7, and one thermal band (Band 6).
Color Composites.
ETM+ (Enhanced Thematic Mapper Plus), is carried on board Landsat 7.
The sensors aboard each of the Landsat satellites were designed to acquire data in different ranges of frequencies along the electromagnetic spectrum ( View Bandpass Wavelengths for all Landsat Sensors ).
The Landsat 4 TM instrument had seven spectral bands. Landsat 7 uses the Enhanced Thematic Mapper Plus (ETM+) scanner. The TM operates in the visible, infrared portions of the EM spectrum as well as collecting a thermal band.
The wavelengths of sensors … 2-14.These data, although not calibrated for sensor gain and offset (Chapters 3 and 7), nevertheless indicate the general properties of atmospheric influence as a function of wavelength.A common technique for atmospheric correction of multispectral imagery uses a “dark object” as a calibration … Band 6 senses thermal (heat) infrared radiation.
However, the thermaL-IR (TIR) band now has a 60-m GIFOV, instead of 120-m. Also, a 15-m panchromatic band has … and simulated Landsat bands from leaf level hyperspectral reflectance data.
The Thematic Mapper (TM) scanner, which first appeared on LANDSAT 4 in 1982, was designed to provide improved spectral and spatial resolution over the MSS instrument. Within a year of launch, Landsat 4 lost the use of two of its …
Its spectral bands are similar to thoss of TM, except that the thermal band (band 6) has an improved resolution of 60 m (versus 120 m in TM). The use of more sensitive detectors, better optics and a lower orbit enabled the collection of radiation in 7 spectral bands, with a spatial resolution of 30 m, and with a data range of 256 intensity levels. The band designations, bandpasses, and pixel sizes for the Landsat instruments are:
Landsat 8 uses two instruments, the Operational Land Imager (OLI) for optical bands and the Thermal Infrared Sensor (TIRS) for thermal bands.
Spatial resolution for Band 6 (thermal infrared) is 120 meters, but is resampled to 30-meter pixels. There is also an additional panchromatic …
Landsat 4-5 Thematic Mapper (TM) images consist of seven spectral bands with a spatial resolution of 30 meters for Bands 1 to 5 and 7.
At the leaf level, hyperspectral and simulated Landsat bands showed very similar …
The approximate scene size is 170 km north-south and 183 km east-west (106 mi by 114 mi). Landsat can only acquire night scenes in band 6. TM data are sensed in seven spectral bands simultaneously. The specific bands for TM and their applications are listed in the table below. Landsat 5 TM Collection 1 Tier 1 DN values, representing scaled, calibrated at-sensor radiance.Landsat scenes with the highest available data quality are placed into Tier 1 and are considered suitable for time-series processing analysis. The enhanced thematic mapper (plus) (ETM+) instrument on Landsat 7 shares the same basic design as the TM sensors on Landsats 4 and 5, with some significant improvements. But it is also pretty dull - there is …
The ETM+ instrument is an eight-band multispectral scanning radiometer capable of providing high-resolution image information of the Earths surface. Landsat 6 & Landsat 7: with the Enhanced Thematic Mapper (ETM) and the Enhanced Thematic Mapper Plus …