Model transmission spectra compared to observed transit depths which are derived from a single transit. In all panels, green circles with error bars show our measurements in the g′r′i′z′JHK bands, of which the horizontal error bars indicate the FWHM of each bandpass. Black dotted line shows a constant value of . Orange dashed line shows a Rayleigh scattering spectrum that is caused by a high-altitude haze. Three fiducial model spectra are shown for comparison, and their broad-band integrated values are displayed in yellow squares. The optical and NIR data are shown in separate panels with different scales for clarity. Top panels show a model with TiO/VO as the dominant opacity sources and a dayside-wide averaged (f = 1/2) pressure-temperature (P-T) profile. Middle and bottom panels show two models with Na and K as the dominant opacity sources. While the middle-panel model has a dayside-wide averaged P-T profile, the bottom-panel model has a planet-wide averaged P-T profile (f = 1/4). See Sect. 4.3.1 for detailed discussion.