The paper, and the datafile (below) should be cited as follows Lorenz, R. et al., A Radar Map of Titan Seas : Tidal Dissipation and Ocean Mixing through the Throat of Kraken, Icarus, submitted (2014)
The "Data File" link hereafter is to an ASCII file that comprises the analytic bathymetry model in the paper. Data File The bathymetry map (Supplemental Online File: see also http://www.lpl.arizona.edu/~rlorenz/titansea.html) is an array of integers, 325 rows by 270 columns, with the value corresponding to estimated depth in meters. The (x,y) coordinates (0<=x<325, 0<=y<275) for a location at latitude (LAT) and longitude (LON) are given approximately by the transformations
x = Xc + S*[cos(LAT)*cos(LON)]
y = Yc + S*[cos(LAT)*sin(LON)]
with parameters S=-495, Xc=232, Yc=245. Because there is some distortion in the map projection, these data should not be used for data correlation studies - the original mosaic (figure 1) or better yet, the raw radar images archived on the NASA Planetary Data System (PDS) should be used. The file here is generated with the assumption of A=0.5, thus the Ligeia central depth is ~170m and the greatest depth overall in Kraken is 197m. The array can simply be scaled (or indeed transformed to some other function such as depth proportional to square root of distance from shore) as desired.
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