Read Me for Sediment Accumulation Data:

These files contain measurements of accumulated sediment in an infiltration basin
over the course of a wet season (~October through ~April)

Each file is named with the corresponding water year (WY). A water year runs
from 1 October - 30 September; for example water year 2012 (WY12) is 
1 October 2011 - 30 September 2012.

Each file has three columns of data. The first two columns indicate the location
of the measurement in UTM coordinates. The final column indicates how much
sediment had been deposited during this wet season, in centimeters. 