1. Spectral Profiler Probe Prototype Sends an optical package into a slotted sleeve inserted into the snowpack to perform contact spectroscopy in-situ, w/o snowpit. Black tarp not shown to block light at base.

2. Spectral Profiler Probe Send optics down hole Lateral reflectance spectra Fiber optic sends signal to spectrometer on surface No snowpit! probe carrier body drive tube optical camera spectral reflectance probe nylon brush aluminum sleeve fiber optic to spectrometer

3. SPL North Transect. Feb. 2010 4 profiles taken, 3m apart (W tarp)

4. Profiler probe transect data These data show a huge (lateral) variation between profiles.

5. Mean profiler grain size vs. contact probe Average of 4 profiles from transect, compared against contact probe measurements from a nearby pit (SPL3)