In late May, NOAA Ship Rainier officially started her Chatham Strait hydrographic survey project in southeast Alaska. It’s often difficult to imagine the age of many of the depth measurements depicted on Alaskan charts, but this short animation brings it home.
The older picture is U.S. Coast and Geodetic Survey Steamer Patterson and her steam-powered launch Cosmos, surveying Gut Bay in 1897. (The USC&GS is one of NOAA’s predecessor agencies, and a direct predecessor of the Office of Coast Survey.) We juxtaposed Patterson with the Rainier, who is finally able to update the bathymetry — at the exact same location — 116 years later.
As our newest survey vessel, NOAA Ship Ferdinand Hassler, prepares for a long survey career, the crew is taking her through final repairs, upgrades, training, and inspection this spring. If all goes well, Hassler will then survey approaches to Chesapeake Bay in July, before heading to her new homeport in New Castle, New Hampshire. Once there, Hassler plans to survey approaches to New Hampshire and conduct some tests and evaluations of a new autonomous underwater vehicle (AUV) for surveying.
NOAA Ship Rainier is due to arrive at its homeport in Newport, Ore., on November 1, completing the ship’s 2012 hydrographic survey season. (Watch Rainier’s progress on NOAA’s Ship Tracker.) This survey season, Rainier departed Newport on May 17 and spent her summer mapping 604 square nautical miles of the ocean floor in Alaska, stretching from Kodiak to the Shumagin Islands, along the Alaskan archipelago.