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The Landsat Thematic Mapper (TM) on Landsat 4 and Landsat 5 measured visible, near-infrared, and shortwave infrared light, along with thermal (heat) infrared radiation. The TM had an improved spatial resolution of 30 meters and sharper spectral separation and greater radiometric accuracy and resolution than the Multispectral Scanner (MSS).

Image
Image Caption

TM image of Chesapeake and Delaware Bay on the U.S. East Coast. Credit: USGS.

Instrument Type

Spectrometers/Radiometers

Instrument Subtype

Imaging Spectrometers/Radiometers

Specifications

Resolution

Spatial

30 m reflective, 120 m thermal (resampled to 30 m)

Spectral

0.45 µm to 12.5 µm

Temporal

16 days

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