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Height assignment (HA) is currently the most challenging task in the operational atmospheric motion vectors' (AMV) extraction scheme. Several sources of error are associated with the height assignment step, including the sensitivity of the HA methods to several atmospheric parameters. However, one of the main difficulties is to identify, for the HA calculation, the most significant image pixels used in the feature-tracking process. The most widely used method selects the coldest pixels in adoi:10.1175/jtech-d-13-00126.1 fatcat:eaxrq7khs5hnhbdae5p3b5hs5q