High-resolution record of surface seawater carbon dioxide (CO2) content, water temperature, sea surface salinity and other parameters collected in Sitka Harbor, Alaska, USA

This dataset includes measurements of partial pressure of carbon dioxide (pCO2), sea surface salinity, sea surface temperature and other parameters collected in Sitka Harbor, Alaska, USA from 2017-06-01 to 2021-04-27. Sitka Tribe of Alaska’s Environmental Research Laboratory adjacent to Sitka Harbor, has been a site for shore-based and high-resolution measurement of surface seawater CO2 content since June 2017. Temperature, salinity, and CO2 partial pressure measurements are made near-continuously from a seawater sample line with an intake 50 m from shore and at a depth of 1 m in Sitka Harbor. The effort to collect these data is a collaboration between the Sitka Tribe of Alaska and the Hakai Institute with support from the Alaska Ocean Observing System.