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Fig. 2 | Progress in Earth and Planetary Science

Fig. 2

From: Abrupt water temperature increases near seafloor during the 2011 Tohoku earthquake

Fig. 2

a Time series, b power spectra, and c phase spectra of each temperature of SBPR-2 (Table 1). In a and b blue, green, and red curves denote internal temperature, ambient water temperature measured by an external thermometer, and water temperature estimated from the internal temperature, respectively. The internal temperature is shifted by –0.50 °C to meet the ambient water temperature. In c, phase differences are shown between the ambient temperature and (blue) the internal temperature, and (red) the estimated temperature, respectively. The positive phase means a delay from the ambient temperature. A 15-min delay from the ambient temperature is shown by a dashed curve. The phase spectra are shown when coherence-squared is greater than 0.6

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