P3.2-238 Retrieval of Sea Surface Current using

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P3.2-238 Retrieval of Sea Surface Current using Himawari-8 SST Data and Particle Image Velocimetry Method in the Flores Sea K. Setiya Wati1, P.P. Hadi Wiguna2, T. Osawa3, I W.G.A. Karang4 12Meteorological, Climatological, and Geophysical

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P3.2-238 Retrieval of Sea Surface Current using Himawari-8 SST Data and Particle Image Velocimetry Method in the Flores Sea
[K. Setiya Wati1, P.P. Hadi Wiguna2, T. Osawa3, I W.G.A. Karang4]
12Meteorological, Climatological, and Geophysical Agency, Indonesia/
3Yamaguchi University/ 4Udayana University Though Indonesia has large territorial waters, our ability to observe maritime weather parameters, especially sea surface currents, is still very limited.
Observing real-time surface ocean currents in Indonesia is only possible from four locations - the Flores Sea being one of them.
Himawari-8 is a geostationary satellite that orbits above Indonesia, providing continuous observations.
In order to estimate sea surface current components' velocity, particle image velocimetry can be used. The equation used here is cross-correlation.
Is this method effective in estimating sea surface currents from Himawari-8 SST data, especially in areas of Indonesia where the SST is almost uniform throughout the year?
Results vary in accuracy. Most accurate estimates have been seen near Komodo National Park or south of the Flores HF radar. The northern part of the HF radar range overestimates the value. This means that the current component velocity is higher than what the HF radar observed. This is why the estimated velocity is higher. In relatively calm areas, better estimates are produced.
Himawari-8 SST data and PIV can describe ocean surface currents, especially in the Flores Sea. To produce more accurate estimation data, further research is needed regarding adjusting PIV calculation methods such as interrogation windows, post-processing, etc.<br>