The above data are plots (in both Postscript and Adobe PDF format) of length scale versus the RMS Deviation of slopes for the sections of the images that lie within the landing ellipse. The measures at different length scales come from summing the images to that resolution in meters per pixel and then running them through our photoclinometry routines to obtain slope images, from which we then calculate the RMS Deviation from all the pixels in the image.
Both maximum haze removal and no haze removal are plotted at 6 m/pixel, but only maximum haze removal values are plotted for other length scales.
We have also processed the images at their original resolutions for
Athabasca (Athabasca_small_scale.*) and Hematite
(Hematite_small_scale.*) to extend the roughness versus
length scale down to the smallest scales.
I must emphasize that this data is very course, it is derived from the large chunks of MOC images that cross the ellipses. Because of that, the slopes reported for Hematite are too steep because of all the non-topogarphy albedo variations.
We will have more fine-grained results for next week's meeting, but this is the general gist of things at the moment.