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The electrically scanning microwave radiometer (ESMR) was an instrument carried by the Nimbus 5 satellite, precursor to the scanning multichannel microwave radiometer (SMMR) and special sensor microwave/imager (SSM/I) instruments.
The ESMR instrument only senses horizontally polarized radiation at a frequency of 19 GHz, and can be used to calculate sea ice concentration. However, results are difficult to intercompare to SMMR / SSMI. The ESMR scanned along the satellite track, leading to a wide range of incident angles; SMMR scanned with a constant angle of 50 degrees, allowing both horizontally and vertically polarised data to be received; SMMR also had 5 instead of one channels, leading to improved sea ice retrievals.
referencePosted on 01 May 2022, this text provides information on Miscellaneous in General related to General. Please note that while accuracy is prioritized, the data presented might not be entirely correct or up-to-date. This information is offered for general knowledge and informational purposes only, and should not be considered as a substitute for professional advice.
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