Abstract

Impacted by global warming, the global sea surface temperature (SST) has increased, exerting profound effects on local climate and marine ecosystems. So far, investigators have focused on the short-term forecast of a small or medium-sized area of the ocean. It is still an important challenge to obtain accurate large-scale and long-term SST predictions. In this study, we used the reanalysis data sets provided by the National Centers for Environmental Prediction based on the Internet of Things technology and temporal convolutional network (TCN) to predict the monthly SSTs of the Indian Ocean from 2014 to 2018. The results yielded two points: Firstly, the TCN model can accurately predict long-term SSTs. In this paper, we used the Pearson correlation coefficient (hereafter this will be abbreviated as “correlation”) to measure TCN model performance. The correlation coefficient between the predicted and true values was 88.23%. Secondly, compared with the CFSv2 model of the American National Oceanic and Atmospheric Administration (NOAA), the TCN model had a longer prediction time and produced better results. In short, TCN can accurately predict the long-term SST and provide a basis for studying large oceanic physical phenomena.

Highlights

  • Sea surface temperature (SST) has an important impact on the health of regional marine ecosystems [1], and its changing trend may lead to the growth, reproduction, and distribution of marine species

  • This study focused on the Indian Ocean to make an extended long-term SST forecast

  • The training set of the input model was a matrix of (120, 81, 50,660), of which 20% was used as training set of the input model was a matrix of (120, 81, 50,660), of which 20% was used as the validation set to adjust the model parameters to obtain the optimal model

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Summary

Introduction

Sea surface temperature (SST) has an important impact on the health of regional marine ecosystems [1], and its changing trend may lead to the growth, reproduction, and distribution of marine species. Long-term SST forecasts on large-scale waters are of great significance to oceanic physical phenomena and help climate monitoring and early warning systems for flood and drought risks. Subsea changes are likely to leave traces on the sea surface through changes in sea-surface height (SSH) [2], so research on SST is important in order to investigate the subsurface parameters. According to Khedouri (1983) [3] and. Ali (2004) [4], sea surface parameters are correlated with subsea ones. Yan et al (1992) [5]. Estimated subsea parameters based on the ocean surface information. Wu et al (2012) [2]

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