Analysis of sea conditions for manned submersible operation in Northeast Pacific

Maimed submersible is one of the important equipment for human exploration of the ocean. Marine environment factors have an important impact on the safety of its operation at sea. Based on ERA_Interim reanalysis data and OFES model data, this paper takes the Northeast Pacific Ocean as the target sea area and takes Jiaolong manned submersible as an example to make a statistical analysis of the environmental factors such as wind and waves that have a great impact on the submersible operation. The research shows that in the Northeast Pacific Ocean, July-August is the ideal window period for submersible operations at sea. During this period, there are many tropical cyclones and special attention should be paid to weather changes during operations at sea.