Preliminary Discussion on the Landfall and Touch Typhoon

Based on the basic meaning of these words related to the typhoon movement and the special horizontal structure of typhoon,we focused on the ambiguous statements of landfall,touch and graze typhoon, and analyzed the location relationship between coastline and the position of typhoon when it moves along or close to the coastline,thus obtained a specific method to identify the landfall and touch typhoon, so as to avoid the possible confusion of wording in operational forecasting.