# Description This dataset contains time series of the temperature gradient derived from Akatsuki LIR data for each Venusian Year (VY), emission angle, and latitude. The dataset was created by Hiroyuki Koyama at The University of Tokyo. # File name convention YYYYMMDD_1VY_aa.a_bbb.b_plot_temp.dat YYYYMMDD: Start date of each Venusian Year (VY) aa.a: Lower limit of the emission angle range used for deriving the temperature gradient. The range is from aa.a to aa.a+10 degrees. bbb.b: Latitude # File format Column 1: Elapsed time from the beginning of each VY in unit of hourColumn 2: Elapsed time from the beginning of each VY in unit of dayColumn 3: Local solar time of Venus at the observed location in unit of hourColumn 4: Temperature gradient in unit of Kelvin/degree before removing long-term trendsColumn 5: Temperature gradient in unit of Kelvin/degree after removing long-term trends