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Surface ocean CO2 in 1990–2011 modelled using a feed-forward neural network ArchiMer
Zeng, Jiye; Nojiri, Yukihiro; Nakaoka, Shin-ichiro; Nakajima, Hideaki; Shirai, Tomoko.
This dataset includes the monthly distributions of CO2 fugacity in the world surface oceans reconstructed using a feed-forward neural network model and the CO2 measurements of the Surface Ocean CO2 Atlas version 2.0. It has a spatial resolution of 1 9 1° and spans a period of 22 years, from January 1990 to December 2011. The dataset also includes necessary parameters for the reconstruction and an estimate of the CO2 fluxes between the ocean and the atmosphere. The aim of this work is to provide a dataset for estimating the oceans’ contribution to the global carbon budget.
Tipo: Text Palavras-chave: Ocean; CO2; Neural network; Model.
Ano: 2015 URL: https://archimer.ifremer.fr/doc/00293/40400/38957.pdf
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Technical note: Evaluation of three machine learning models for surface ocean CO2 mapping ArchiMer
Zeng, Jiye; Matsunaga, Tsuneo; Saigusa, Nobuko; Shirai, Tomoko; Nakaoka, Shin-ichiro; Tan, Zheng-hong.
Reconstructing surface ocean CO2 from scarce measurements plays an important role in estimating oceanic CO2 uptake. There are varying degrees of differences among the 14 models included in the Surface Ocean CO2 Mapping (SOCOM) inter-comparison initiative, in which five models used neural networks. This investigation evaluates two neural networks used in SOCOM, self-organizing maps and feedforward neural networks, and introduces a machine learning model called a support vector machine for ocean CO2 mapping. The technique note provides a practical guide to selecting the models.
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Ano: 2017 URL: https://archimer.ifremer.fr/doc/00383/49464/49949.pdf
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