A method for recalibrating a material attribute monitor for a mobile
vehicle includes accumulating an aggregate amount of material from a
plurality of material transfers; accumulating a plurality of material
attribute data sets via a series of data transfers from at least one
vehicle to another vehicle, wherein each material attribute data set of
the plurality of material attribute data sets is associated with a
corresponding material transfer of the plurality of material transfers;
measuring aggregate material attributes of the aggregate amount of
material; and generating material attribute calibration data from the
accumulated plurality of material attribute data sets and the measured
aggregate material attributes.