RFI and weather forecasting

It isn't just radio astronomers that are affected by radio frequency interference (RFI); meteorologists are finding it difficult to predict rain due to RFI. They passively use several different frequency bands, one of which is near the 22 GHz water vapour emission line. It is becoming harder and harder for them to use the data because man-made interference can't be distinguished from rainfall.

As I have said before, we need to protect some of the electromagnetic spectrum from development in the same way that we set aside National Parks. That way everyone can use them in a passive way.

Posted in astro blog by Stuart on Saturday 18th Dec 2004 (16:25 UTC) | Permalink
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