Underway surface seawater and marine boundary layer observations made from the Alaska Marine Highway System M/V Columbia from October 2017 to October 2018 ...

• Main Author: Hakai Institute
• Format: Dataset
• Language: English
• Published: Hakai Institute 2019
• Subjects: marine CO2 system; Ocean acidification; oxygen dynamics; underway measurements; British Columbia coast; Gulf of Alaska; North Pacific Ocean; Pacific; Ketchikan; Skagway; Alaska
• Online Access: https://dx.doi.org/10.21966/zxzr-e472; https://catalogue.hakai.org/dataset/ca-cioos_6d779012-e236-4a03-b11a-a5915f0f4342

From October 2017 to October 2018, underway surface water measurements were collected from the Alaska Marine Highway System M/V Columbia during 81 service route transits. The service route of the Columbia included the ports of Sitka, Juneau, Haines, Skagway, Wrangell, Petersburg, and Ketchikan in southeast Alaska, and between Ketchikan and Bellingham, WA. The vessel sailed from Ketchikan every Wednesday, arrived in Bellingham on Friday, and returned to Ketchikan on Sunday. Measurements of temperature, salinity, dissolved oxygen content, and CO2 partial pressure were made every 2 mins on seawater drawn into the vessel from a ~2 m intake. Seawater was delivered from the intake to analytical equipment on the car deck using a AMT 1/2 HP pump (4295-98). Temperature and salinity data were collected using a Sea-Bird SBE 45 MicroTSG Thermosalinograph, and intake temperature measured using a SBE 38 Digital Oceanographic Thermometer. Dissolved oxygen content was determined using an Aanderaa 4330F that had undergone ...