Mass concentration-
A mass concentration or a mascon is a region of a planet or moon’s crust that contains a large amount of material that is denser than the average for that body.
Mass median radius-
Parameter accepted for the definition of the particle size distribution.
Monin-Obukhov length-
The height at which the Richardson number (which parameterizes if is convection is free or forced) equals 1 for flow near a heated wall.
Multivariate Optimum Interpolation method-
The MVOI is a method for producing a dynamically consistent blending of observations and model forecasts for use as initial conditions for forecast models. The MVOI technique combines first guess fields (usually 6 hour or 12 hour model forecasts) with a wide variety of observational data to generate an analysis of the present state of the atmosphere.
Magnification Factor-
There is an increase in the angular size of an object if its magnification factor is more than 1. It accounts for slant path and refraction. Telescopes and binoculars provide angular magnification, increasing the acuity by the magnification factor.
Marhall-Palmer relation-
The Z–R relationship developed by J. S. Marshall and W. M. Palmer (1948) consistent with an exponential drop-size distribution. The relationship is Z = 200R1.6, where Z (mm6 m-3) is the reflectivity factor and R (mm h-1) is the rainfall rate. The relationship is sometimes generalized to the form Z = aRb, where a and b are adjustable parameters.
Mass absorption coefficient-
A measure of the rate of absorption of radiation, expressed as the absorption cross section per unit mass.
Mflx-
Net radiation flux absorbed by surface.
