the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
A High Dense Temperature-Salinity Dataset Observed by Automatic Underwater Vehicles toward Mesoscale eddies’ Evolutions and Associated Submesoscale Processes in South China Sea
Abstract. Marginal seas are usually fulfilled with strongly varying mesoscale eddies (MEs), which evolutions plays vital roles in regulating global oceanic energy equilibrium, triggering subemesoscale processes with strong vertical velocity, and inducing high biogeochemistry transport. But the temporal evolutions of MEs and submesoscale processes with several kilometers’ resolutions are difficult to be measured by traditional observations with passive working mode. The automatic underwater gliders (AUGs) and vehicles (AUVs) positively observe oceanic motion, and could provide us spatiotemporal synchronization information for strongly varying MEs. Here, we present a 9-year high dense dataset of AUVs/AUGs observations in 2014–2022 in the South China Sea (SCS) can be downloaded from https://doi.org/10.57760/sciencedb.11996 (Qiu et al., 2024b). Totally, 9 AUG and 2 AUV cruise experiments were conducted, and 83 AUGs (2 AUVs) equipment were deployed with zonal and temporal resolutions of < 7 km and <6 hour. It covers the area of eddy’s birth, propagation, and dissipation, presenting us the most complete data to investigate the evolution of MEs at different life stages. 40 % of them reach resolutions < 1 km and < 1 hour, which provides us the dynamic characteristics of submesoscale instabilities across and along front at the eddy edge. This dataset has potential in improving the forecast accuracy in physical and biogeochemistry numerical model. Much more aggressive field investigation programs will be promoted by the NSFC in future.
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Status: open (until 07 Nov 2024)
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CC1: 'Comment on essd-2024-338', Luo Yao, 16 Sep 2024
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The article highlights the crucial role of mesoscale eddy (ME) evolution in regulating the global ocean energy balance, triggering sub-mesoscale processes with strong vertical velocities, and inducing significant biogeochemical transport. It presents a remarkable dataset collected from the South China Sea (SCS) over nine years (2014-2022), using 83 AUG (2 AUV) devices, providing high-resolution observations with spatial resolution under 7 km and temporal resolution of less than 6 hours.
The cost of acquiring such high-quality, long-duration data is extremely high, making it inaccessible for many researchers. However, the availability of this dataset offers a valuable resource for the scientific community, serving as foundational data for numerous studies. It also has the potential to enhance the accuracy of both physical and biogeochemical numerical models, significantly advancing research in these areas.
Citation: https://doi.org/10.5194/essd-2024-338-CC1
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