Snowmelt lysimeter data from Soddie site, 1998-2003

The lysimeter array is a collection of 105 snowmelt lysimeters that collect discharge measurements at the base of the snowpack. Each lysimeter is a polyethylene pan with 22 cm high vertical walls and 47 cm by 39.5 cm in horizontal extent resulting in a footprint area of ~1,850 cm2. The height of the lysimeter walls prevent both the loss of water out of the lysimeters and the influx of water from saturated zones along the snow-soil interface [Kattelmann, 2000]. This location collected data during spring snowmelt (April through July) for water years 1998 through 2003. From 1998 through 2001, the array was organized as a two meter grid nested within a four meter grid. The 1998 water year had only 36 lysimeters installed. In the 2002 water year, 15 of lysimeters on the perimeter were relocated to increase the density of the inner grid. Lysimeters were moved from locations of low snow accumulation on the eastern edge and a region that collects debris during melt on the western edge. Meltwater collected by the lysimeters flowed to an underground laboratory through flexible PVC piping into Rainwise Rainew Tipping Bucket Rain Gauges. The cumulative number of tips were recorded by a Campbell Scientific CR1O data logger at one hour intervals summed to daily totals for this dataset. The precision of outflow is approximately 11 ml (~0.06 mm given the footprint of the lysimeter). This dataset includes the coordinates for each lysimeter of the Soddie lysimeter array. Coordinates are in UTM projection, zone 13N, datum NAD83.