Name: Benguela Air-Sea CO2 and Heat Flux Experiment on the Algoa Voyage 278, December 2021
License: https://creativecommons.org/licenses/by-sa/4.0/

DOI: 10.15493/DEA.MIMS.01142023

Title	Benguela Air-Sea CO2 and Heat Flux Experiment on the Algoa Voyage 278, December 2021
Authors	Mutshutshu Tsanwani Oceans and Coastal Research, Department of Environment, Forestry and Fisheries (DFFE), South Africa, email: MTsanwani@dffe.gov.za
Publisher	Department of Forestry, Fisheries and the Environment (2023)
Contributors	Contact Person: Mutshutshu Tsanwani Oceans and Coastal Research, Department of Forestry, Fisheries and the Environment (DFFE), email: MTsanwani@dffe.gov.za
Abstract	The Benguela Air-Sea CO2 and Heat Flux Experiment was conducted on the Algoa Voyage 278 from 6 to 19 December 2021. The cruise operated on the West Coast of South Africa at a fixed location between Station 4 and 5 of the St. Helena Bay monitoring line (SHBML) with the ship's bow into the wind. The objectives of the cruise were to examine, using high-resolution Eddy Co-Variance (EcV) and in situ observations, the role of the ocean “cool skin” on the air-sea flux of CO2 and heat; to examine, through high-resolution observations, the impact of the vertical temperature gradient in the upper 10m of the water column on the estimation of the air-sea flux; to examine the sensitivity of 1 and 2 under a wide range of diurnal and synoptic wind stress and surface layer mixing conditions; to link the variability in the temperature gradients and pCO2 to mixed layer dynamics in response to the interaction of wind-linked mixing and heat-linked stratification; to understand the synoptic scale variability of the CO2 and heat fluxes; to understand how synoptic scale influence diurnal variability of Dissolved Inorganic Carbon (DIC) and Total Alkalinity (TA); to investigate how representative the bulk heat flux parameterisations are to the true EcV heat fluxes, particularly over sharp lateral temperature gradients; to determine the respective role of fine-scale lateral oceanic processes (submesoscales) and synoptic atmospheric variability to the leading order variability of surface heat fluxes and to conduct Top predator population including Seabirds, whales, dolphins, seals, etc.
Data	Attribution-ShareAlike 4.0 International (CC BY-SA 4.0) Cite 10.15493/DEA.MIMS.01142023 Style Terms of use These data are made available with the express understanding that any such use will properly acknowledge the originator(s) and publisher and cite the accession numbers and/or associated Digital Object Identifiers. Anyone wishing to use these data should properly cite and attribute the data providers listed as authors in the metadata provided with each dataset. It is expected that all the conditions of the data license will be strictly honoured. Use of any material herein should be properly cited using the dataset’s persistent identifiers such as accession numbers and DOIs. I agree to the terms of use
Temporal extent	06 Dec 2021 – 19 Dec 2021
Geographic extent	North: -32.0 South: -34.0 West: 17.0 East: 19.0
Keywords	Algoa, Algoa 278, cruise report, sailing orders
Related resources	Digital objects included in this collection: Processed underway Thermosalinograph (TSG) observations from the Benguela Air-Sea CO2 and Heat Flux Experiment on the Algoa Voyage 278, December 2021 (10.15493/DEA.MIMS.01212023) Raw underway Thermosalinograph (TSG) observations from the Benguela Air-Sea CO2 and Heat Flux Experiment on the Algoa Voyage 278, December 2021 (10.15493/DEA.MIMS.01222023)

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