2D-array of horizontal wind vectors, based on measurements of two doppler radars located typically less than 100 km from each other. .
Parameters
Product data quantity: array of speed (tenths of m/s and direction (degrees) of wind Image size: number of arrays per row (# of columns) and per column (# of rows) Coordinates of central point of the image Array spacing: km Upper limit altitude: m a.s.l. Lower limit altitude: m a.s.l. Maximum unambigious speed Unfolding method used Fallspeed correction method used if any
Notes
• The barbs cannot be used at area where the beams of the two radars are almost parallel. From this and other reasons, a quality indicator is essential.