Gap Filling of the CALYPSO HF Radar Sea Surface Current Data through Past Measurements and Satellite Wind Observations

Table 1

Sample training dataset used for supervised learning of and coefficients for time T.

Wind; (T-6)	Wind; (T-5)	Wind; (T-4)	Wind; (T-3)	Wind; (T-2)	Wind; (T-1)	Current; (T-6)	Current; (T-5)	Current; (T-4)	Current; (T-3)	Current; (T-2)	Current; (T-1)	Current; (T)
4.17	2.42	2.77	3.12	3.47	3.82	−29.77	−34.68	−31.94	−31.61	−33.78	−31.75	−27.25
2.42	2.77	3.12	3.47	3.82	4.17	−34.68	−31.94	−31.61	−33.78	−31.75	−27.25	−25.12
2.77	3.12	3.47	3.82	4.17	4.14	−31.94	−31.61	−33.78	−31.75	−27.25	−25.12	−27.22
3.12	3.47	3.82	4.17	4.14	4.12	−31.61	−33.78	−31.75	−27.25	−25.12	−27.22	−24.96
3.47	3.82	4.17	4.14	4.12	4.10	−33.78	−31.75	−27.25	−25.12	−27.22	−24.96	−26.17
3.82	4.17	4.14	4.12	4.10	4.07	−31.75	−27.25	−25.12	−27.22	−24.96	−26.17	−22.13
4.17	4.14	4.12	4.10	4.07	4.05	−27.25	−25.12	−27.22	−24.96	−26.17	−22.13	−20.87
4.14	4.12	4.10	4.07	4.05	4.03	−25.12	−27.22	−24.96	−26.17	−22.13	−20.87	−21.26
4.12	4.10	4.07	4.05	4.03	4.29	−27.22	−24.96	−26.17	−22.13	−20.87	−21.26	−20.28
4.10	4.07	4.05	4.03	4.29	4.55	−24.96	−26.17	−22.13	−20.87	−21.26	−20.28	−18.65