05/15/13, Boise State University, Dept of Geosciences, Hydrologic Sciences, Jim McNamara Research Director, Pam Aishlin Site Maintenance and Data Management Data provided herein is for soil instrumentatin site LS (low elevation, south-facing) of Dry Creek Experimental Watershed, Boise, Idaho. DATA STREAM: 1. Four pits were emplaced by graduate student Toni Smith, Boise State University in 2007. 2. Data collection and site maintenance is provided by Boise State University Hydrologic Sciences. 3. Data files collected via Campbell Scientific datalogger are quality checked and post processed for gapfilling, noise filtering and/or corrected according to established instrument calibrations. SITE NOTES: Soil moisture and soil temperature measurement site. Site includes four soil pits with sensors at multiple depths, 2, 15, 30 cm and/or near bedrock. Max 3 sensors per pit at this site, LS. For site LS, 30 cm is the deepest labeled sensor per pit. However, actual sensor depths are 31, 32,31,31, while pit depth is 35,32,35,32, accordingly, pit 1 to 4. Pits are located at 3 m quadrilateral separation. This site is north-facing, located in the Shingle Creek catchment of DCEW. It is one of 8 soil sites established as north-south facing paired sites in 2007, 2008. Geology at this location is Sandy loam over fractured granodiorite. DATA/INSTRUMENT NOTES: Sensors initially installed are Decagon ECH2O EC-TM soil moisture and soil temperature sensors. Sensor precision is 0.001 for volumetric water content (cm3/mc3) and 0.1 celsius for soil temperature. Sensors were calibrated in-lab at Boise State University by Toni Smith, in cooperation with Decagon technical support, in accordance with manual specifications and expected sandy loam soil. An appropriate datalogger program was written by Toni Smith in collaboration with Decagon technical support. DATA POSTPROCESSING: Data gaps and NAN values are filled w/ -6999 as a nodata value. Algorithms are used to remove obviously erroneous values, such as negative moisture values and temperature above expected range of -10 to 40 celsius, as well as obviously 'stuck' values. In some years, these algorithms were not applied in order to preserve trends such as occur with soil moisture into the negative range due to sensor calibration offset. ANNUAL ERRORS/GAPS/UPDATES: Data collection initiated May 14, 2008. 2009 gaps to 1/17 1800; 4/22; 9/15; 10/23-11/13; LS 2012 - Data gap 5/1/12-5/20/12. 2015 previously failed sensors = p1 30cm, p3 15cm, p4 2cm; p3 30 sporadic fail moi and T april; p1, p2, p3 2cm - soil moi out of range (NAN,-6999) at times in winter and summer; T problems.... p1, p2, p3 2cm - T is 49 to 59 C at the soil surface may be effect of sensor exposed. Also -6999 values. spring, fall, summer. 12/12 low battery, no data after 12/19; 2016 gap 12/19/15 - 1/08/16. End of 2016 sensors failed = pit1 30cm;pit2 2 cm ;pit3 15cm; pit4 2,15 cm. 2017 gaps begin 1/12/17 and continue through March, low battery. 4 pits each w/ one to two fully working sensors. (max 3 sensors installed per pit at this site)