| DEMs.  No special extensions, e.g. dockton2012.tif  These are
32-bit floating point files.  We have only bare-earth DEMs here.
Some software will have trouble with it.
ArcMap and matlab will import them easily. | We are moving to explicit but obscure extensions.  "behsnw" means that these are
hillshade images of the bare-earth DEM as lit from the northwest (azimuth=315)
with the default altitude of 45 degrees.
These are an 8-bit image that can be displayed by any program
that does not choke on the size. | These are bi-linearly resampled pyramid files that enable arcmap to
display the images quickly and sharply when you are zoomed out. |