Is northern in Pacific capitalize?

The word "northern" should not be capitalized when referring to the Pacific Ocean.

Here's why:

* "Northern" is a directional term. It describes a location relative to something else, in this case, the Pacific Ocean. Directional terms are generally not capitalized unless they are part of a proper noun.

* "Pacific" is a proper noun. It is the specific name of an ocean and should be capitalized.

Therefore, the correct way to write it is "Northern Pacific Ocean".