IMOS - Southern Ocean Time Series (SOTS) - Net Community Production (NCP) Calculation Procedure and MATLAB Code

• Other Authors: AODN Data Manager (distributor), CSIRO Oceans and Atmosphere - Hobart (hasAssociationWith), Commonwealth Scientific and Industrial Research Organisation (CSIRO) (publisher), Data Officer (distributor), Integrated Marine Observing System (IMOS) (custodian), Trull, Thomas W. (author), Weeding, Ben (author), Weeding. Ben (author)
• Format: Text
• Language: unknown
• Published: Australian Ocean Data Network
• Subjects: oceans; Southern Ocean Time Series Observatory Sub-Facility; Integrated Marine Observing System (IMOS); Antarctic; Southern Ocean; Antarc*; Antarctic Climate and Ecosystems Cooperative Research Centre; Australian Antarctic Division; Australian Antarctic Program
• Online Access: https://researchdata.edu.au/imos-southern-ocean-matlab-code/1879251; https://doi.org/10.26198/5f28da9bdf45a

Maintenance and Update Frequency: asNeeded Credit Australia’s Integrated Marine Observing System (IMOS) is enabled by the National Collaborative Research Infrastructure Strategy (NCRIS). It is operated by a consortium of institutions as an unincorporated joint venture, with the University of Tasmania as Lead Agent. Credit CSIRO Oceans and Atmosphere Credit Australian Bureau of Meteorology Credit Antarctic Climate and Ecosystems Cooperative Research Centre (ACE CRC) Credit Australian Marine National Facility (MNF) Credit Australian Antarctic Program Partnership (AAPP) Credit Australian Antarctic Division (AAD) The Southern Ocean Time Series (SOTS) Observatory, located in Subantarctic waters near 141°E and 47°S, consists of autonomous moorings that provide high temporal resolution observations. It is focused on the Subantarctic Zone because waters formed at the surface in this region by deep wintertime convection slide under warmer subtropical and tropical waters, carrying CO2 and heat into the deep ocean, where it is out of contact with the atmosphere. This process also supplies oxygen for deep ocean ecosystems, and exports nutrients that fuel ~70% of global ocean primary production. Local biological production also impacts carbon cycling and the SOTS moorings measure several variables important to these processes including solar radiation, chlorophyll fluorescence, optical backscatter, dissolved nitrate, dissolved oxygen, and total dissolved gases (using a total gas tension device). The oxygen and total gas tension observations can be combined to separate physical and biological contributions to surface mixed layer oxygen budgets and thus to yield estimates of net community production. This procedure, and the associated MATLAB code, are the subjects of this report. The code is currently enabled explicitly for the first three mooring deployments at SOTS with full suites of successful biogeochemical sensors required for the NCP calculations: Pulse-7, Pulse-9, and SOFS-7.5. It is constructed to ...