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M

Map accuracy

The degree to which a value on the map conforms to true or accepted values measured on the ground. Accuracy is a measure of correctness. It is distinguished from precision, which measures exactness.

Maximum likelihood estimator, mle

Inversion residual. The multiplet of backscatter data is inverted to three parameters: wind speed, wind direction and MLE. Therefore, the MLE measures the difference of the measured backscatter multiplet and the multiplet given by the solution wind speed and direction in the given satellite geometry of the WVC, according to the GMF. Hence, the MLE is a measure of the inconsistency of the measured backscatter multiplet with the GMF.

Mie scattering

Scattering mechanism taking place if the target size is similar to the wavelength resulting in resonant effects.

Multispectral

Measuring across the electromagnetic spectrum using typically 3 to 10 bands.