This icon returns a vector from user supplied GRIB data of vector X and Y components (cartesian coordinates) or intensity/direction (polar coordinates) with the option of colouring the vectorial representation (arrows) according to the magnitude of a user supplied scalar quantity. The classic example is to plot a wind field from (U,V) components coloured according to Temperature.
The macro language equivalent is grib_vectors().
The Grib Vectors Editor
Type
This parameter specifies whether the input data fields are in U/V format (Vector Field) or intensity/direction (Polar Field).
U Component
Specifies the field to be used as the vector field U component. The parameter accepts any GRIB icon as input. Available when Type is Vector Field.
V Component
Specifies the field to be used as the vector field V component. The parameter accepts any GRIB icon as input. Available when Type is Vector Field.
Intensity
Specifies the field to be used as the vector field intensity component. The parameter accepts any GRIB icon as input. Available when Type is Polar Field.
Direction
Specifies the field to be used as the vector field direction component. The parameter accepts any GRIB icon as input. Available when Type is Polar Field.
Colouring Field
Specifies the field to be used as the colouring key. The parameter accepts any GRIB icon as input.