Fig. 1. Geometry and radiation parameters of sea surface skin temperature measurement

Fig. 2. Schematic diagram of the hardware system composition of sea surface skin temperature correction scheme

Fig. 3. Section structure of circulating water film device

Fig. 4. Physical drawing of circulating water film device

Fig. 5. Calibration results of infrared imager

Fig. 6. Background radiation simulation panel's temperature and correction result for water film measurements. (a) Real temperature of background radiation simulation panel and water film; (b) correction result

Fig. 7. Inversed temperature of background radiation simulation panel. (a) Inversed temperature and the true temperature of background radiation simulation panel; (b) temperature difference between them

Fig. 8. Scene diagram of the outdoor experiment for water surface temperature correction of seawater simulator

Fig. 9. Measurement results of water surface and sky. (a) Measured value and the true value of circulating water film and seawater simulator; (b) temperature error of circulating water film and seawater simulator; (c) inversed sky brightness and the sky brightness measured by KT19; (d) sky brightness temperature difference between them

Fig. 10. Correction result for water surface temperature measurements and error of the three schemes. (a) True value of water surface temperature, the measured value corrected using the three schemes, and the uncorrected measured value; (b) original temperature error of water surface and error corrected by the three methods

Table 1. Water surface temperature measurement error before and after correction