Coastal Community Ocean Observers (C2O2) CTD data, 2014-2017

This dataset consists of measurements of physical properties of the coastal water of three Alaskan communities. Samples were taken by two types of small Conductivity-Temperature-Depth (CTD) instruments - the YSI/Sontek CastAway and the RBR Concerto. Parameters measured include pressure, temperature, conductivity, and chlorophyll-a; depth, salinity, and density (as sigma-t) were calculated from these. Community members in Kaktovik (on the North Slope), Old Harbor (on Kodiak Island), and St Paul (in the Bering Sea) took measurements from a dock, small boat, or through landfast ice with the goal of acquiring weekly measurements from 2014 through October 2017. Also included is the raw data for all instruments - both the proprietary formats readable via free software from the manufactures and ASCII versions written after preliminary data processing according to manufacture's instructions.