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An airborne microwave radiometer has been thoroughly characterized by the Met Office, using a thermalvacuum test facility and flight test data. Scan dependence due to mirror reflectivity considerations, as well as calibration target thermometry, target thermal gradients, radiometer noise, and radiometer stability are quantified. A resultant accuracy of approximately 1 K is achieved.

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We have built and characterized an injection-seeded, Q-switched, flash-lamp-pumped, eye-safe Er:glass laser that is suitable for coherent remote sensing. The output of the device is a 400-ns, single-frequency, transform-limited pulse of 1 mJ at 1.552 mum.