Articles | Volume 18, issue 8
https://doi.org/10.5194/essd-18-5855-2026
https://doi.org/10.5194/essd-18-5855-2026
Data review article
 | 
13 Aug 2026
Data review article |  | 13 Aug 2026

A global high-resolution temperature and salinity reconstruction by spatiotemporal multiscale correlations and dynamic height constraints

Haowen Wu, Wei Li, Hong Li, Guijun Han, Gongfu Zhou, Hanyu Liu, Lige Cao, and Qingyu Zheng

Cited articles

Argo: Argo float data and metadata from Global Data Assembly Centre (Argo GDAC), Argo, https://doi.org/10.17882/42182#76230, 2026. 
AVISO/DUACS: SWOT Level-3 KaRIn Low Rate SSH Expert (3.0), AVISO/DUACS, https://doi.org/10.24400/527896/A01-2023.018, 2024. 
Bagnell, A. and DeVries, T.: 20th century cooling of the deep ocean contributed to delayed acceleration of Earth's energy imbalance, Nat. Commun., 12, 4604, https://doi.org/10.1038/s41467-021-24472-3, 2021. 
Caldwell, P. C., Merrifield, M. A., and Thompson, P. R.: Sea level measured by tide gauges from global oceans – the Joint Archive for Sea Level holdings (NCEI Accession 0019568), Version 5.5, NOAA National Centers for Environmental Information [data set], https://doi.org/10.7289/V5V40S7W, 2015. 
Cao, L., Li, W., Zhang, Y., Han, G., Qin, Y., Liang, K., Wang, X., Li, H., Zhou, G., Wu, H., Zheng, Q., He, J., Tong, Y., and Zhang, Y.: MOHDAS: MaCOM Operational Hybrid Data Assimilation System Based on the Analytical 4-Dimensional Ensemble Variational Method, Ocean-Land-Atmos. Res., 5, 0135, https://doi.org/10.34133/olar.0135, 2026. 
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Short summary
Temperature and salinity (T&S) are fundamental in physical oceanography. Objective analysis can generate highly reliable gridded T&S datasets. However, most existing representative products have relatively coarse resolution. This study develops a global 1/4° high-resolution product by integrating spatiotemporal correlations and physical constraints. Results show that the dataset achieves excellent overall accuracy and unbiased performance, while effectively capturing abundant mesoscale features.
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