Scientists Highlight Importance of 37 GHz Band
The National Academy of Sciences’ Committee on Radio Frequencies (CORF) raised concerns about protecting scientific use of the lower 37 GHz band, one of five bands targeted for further study in the administration’s national spectrum strategy (see 2311130048). The band…
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offers “an extensively used passive microwave window channel between the 22 GHz water vapor line and the 60 GHz oxygen line complex, with a continuous program of record stretching back to the 1970s,” CORF said in a filing Friday in docket 24-243: “It provides unmatched radiometric sensitivity to key Earth system variables, including precipitation and cloud liquid water, surface freeze-thaw conditions and snow cover, sea-ice concentration, and ocean vector winds.” CORF filed after the Sept. 9 deadline for comments. Making measurements, CORF noted, is complex work. “It is important to recognize that although a certain band might measure emissions associated with a particular physical process or molecular species, correct interpretation of this emission signal requires that data from many bands be analyzed together.”