Improved Surface Currents from Altimeter-Derived and Sea Surface Temperature Observations: Application to the North Atlantic Ocean

被引：1

作者：

Ciani, Daniele ^{[1
]}

Asdar, Sarah ^{[2
]}

Buongiorno Nardelli, Bruno ^{[2
]}

机构：

[1] CNR, Ist Sci Marine CNR ISMAR, I-00133 Rome, Italy

[2] Ist Sci Marine CNR ISMAR, Consiglio Nazl Ric, I-80133 Naples, Italy

来源：

REMOTE SENSING | 2024年 / 16卷 / 04期

关键词：

geostrophic currents; sea surface temperature; satellite observations synergy; HIGH-RESOLUTION ALTIMETRY; GEOSTROPHIC CIRCULATION; MEDITERRANEAN SEA; GLOBAL OCEAN; HF RADAR; DRIFTER; INTERPOLATION; VARIABILITY; EDDIES;

D O I：

10.3390/rs16040640

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

We present a study on the ocean surface currents reconstruction by merging Level-4 (L4, gap-free) altimeter-derived geostrophic currents and satellite sea surface temperature. Building upon past studies on the multi-variate reconstruction of geostrophic currents from satellite observations, we regionalized and optimized an algorithm to improve the altimeter-derived surface circulation estimates in the North Atlantic Ocean. A ten-year-long time series (2010-2019) is presented and validated by means of in situ observations. The newly optimized algorithm allowed us to improve the currents estimate along the main axis of the Gulf Stream and in correspondence of well-known upwelling areas in the North Eastern Atlantic, with percentage improvements of around 15% compared to standard operational altimetry products.

引用

页数：15

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