GRAPES_WW3 of the National Meteorological Center (NMC) harnesses independently developed global mesoscale numerical weather prediction product GRAPES_GFS to drive WAVEWATCH III to calculate sea wave numerical weather prediction product of the global ocean surface with a horizontal resolution of 50 km.

This system operates twice a day, which can provide global sea wave numerical weather prediction product at 6-hour interval, with the prediction time efficiency of 10 days. Products include 10-meter wind, significant wave height (SWH), average wave direction, average wave period, and others. The newly launched GRAPES_WW3 products encompass SWH and average wave direction stacking chart products covering global oceans, such as Pacific, Indian Ocean, and Atlantic. (Sep. 17)

Author: Wang Yi

Editor: Liu Shuqiao