4/14/2017, Boise State University, Dept of Geosciences, Hydrologic Sciences, Jim McNamara Research Director, Pam Aishlin Data Management Data provided herein is for the Lower Deer Point weather station (LDP) of Dry Creek Experimental Watershed, Boise, Idaho. DATA STREAM: 1. Measurement site was installed by Boise State University (Student Aurele LaMontagne) of Boise, Idaho, 2007 with data collection initiated June 13, 2007. Data collection and site maintenance is provided by Boise State University Hydrologic Sciences. Soil moisture sensors, thermocouples and heat flux plates are installed adjacent to the weather station tower at three shallow locations: at the station, 5 m west and 5 m east of the station. Additional deep soil pits are located on the adjacent east-facing hillslope and apprx 100 m further east under forest cover. 2. Data files collected via Campbell Scientific datalogger are telemetered and compiled. This is level 0, raw data. CUAHSI HIS standards, 0 = raw data, 1 = Quality controlled data that have passed quality assurance procedures such as routine estimation of timing and sensor calibration or visual inspection and removal of obvious errors, 2 = Derived products that require scientific and technical interpretation and may include multiple-sensor data. 3. Selected hourly timeseries are quality checked and post processed for gapfilling, noise filtering and/or corrected according to established instrument calibrations. 4. Data as collected and provided is, by protocol in mountain standard time, year-round. SITE NOTES: As the third weather station established in Dry Creek Experimental Watershed, this site is officially named “Lower Deer Point” weather station (LDP). Instrumentation with corresponding data series provides measurement of air temperature, relative humidity, snow depth, precipitation (shielded alter gage), wind speed and wind direction, soil temperature, soil moisture and soil heat flux. Additional sensors installed include a second shielded rain gage, fall 2011 (Dave Eirikkson, Pam Aishlin), on the adjacent east-facing hillslope and a four component shortwave/ longwave radiometer (graduate student Pat Kormos, sup. Jim McNamara) summer 2012. Site telemetry, maintenance and data analysis-management is conducted by Pam Aishlin. LDP is located on the northern ridge line of DCEW in the Con1West headwater catchment wherein stream flow is seasonal. At 1843 m elevation, LDP is located above the rain-snow transition zone for winter precipitation on the Boise Front. Water years 2008-2011 averaged 762 mm precipitation at LDP, range 667 to 907 mm, with snowpack generally one meter deep or less, December through April. Soil at the site is sandy loam, zero to one meter depth above fractured crystalline bedrock. Vegetation includes minor low profile grass and forbs, broad thickets of ceanothus , sparse Ponderosa pine and Douglas fir on the ridge top, in contrast with thicker forest vegetation, including tall stands of deciduous shrubs, Douglas fir and Ponderosa pine, on the east facing slope. DATA/INSTRUMENT NOTES: Weather Tower location, SOIL MOISTURE, TEMPERATURE, (HEAT FLUX - provided in separate folder) Below ground sensors installed at LDP include 2 Campbell Scientific CS616 Water Content Reflectometer, 3 thermocouples and 2 heat flux plates, buried at 8 cm depth. These are located adjacent to the weather station tower, east and west of tower. Heat flux value accuracy is <+/-5% for range +/- 100 W/m2, inferred precision .01 W/m2. Thermocouple accuracy is <+/- 0.2 C, inferred precision 0.1 C. Data is provided at quality control level 1,instantaneous hourly values. Data output is hourly sample and hourly average, except for heatflux which is only collected as hourly average. ADDITIONAL SOIL PITS ARE LOCATED EAST OF THE LDP WEATHER TOWER ON A NE facing slope and further east (< 0.5 km) within a forested location. Installation 2007. This data is available upon request. LDPup, Lower Deer Point upper pit, cr1000 logger LDPup was established in 2007 as one two sites in a paired unforested vs. forested east- facing hill slope soil measurement network within DCEW. Located above the rain-snow transition zone for winter precipitation on the Boise Front, these pits are proximate to weather station LDP wherein water years 2008-2011 averaged 762 mm precipitation, with snowpack generally one meter deep or less, December through April. Soil at this unforested hill slope is sandy loam, less than one meter deep overlying fractured crystalline bedrock. Vegetation includes sparse Ponderosa pine and Douglas fir with deciduous shrubs and broad thickets of ceanothus. Soil moisture and temperature is measured within one soil pit with sensor pairs of 0.5 meter lateral separation at 10, 20, 40 and 70 cm depth. In total, the pit contains eight ECH2O-TE/ EC-TM (Decagon) water content, EC and temperature. Between 2008 and 2012 two of these sensors failed. Tensiometers have been emplaced at each of the four measurements depths, but have not been employed. A snow depth sensor was installed October 2012. For water years prior to 2013, data is provided at hourly intervals, at 15 minute intervals thereafter. Upper pit: 4 paired tdr initially in place, CS 615 (2 prong, black cable, with 5 wires for connection to datalogger) and CS 605 for connection with multiplexor/wave generator a) upslope pair, 10 cm depth: CS615-L*282551, red-12v,black-ground,orange-enable, green-output,clear-drain. CS605 L*286727 b) downslope pair, 10 cm depth: c) upslope pair, 40 cm depth: d) downslope pair, 40 cm depth: Upper pit: grain size analysis, samples did not have enough fines to perform a proper hydrometer analysis. 60 cm dry weight = 135.21g 40 cm dry weight = 226.69g 10 cm dry weight = 107.08g LDPlp, Lower Deer Point lower pit, cr10x logger LDPlp was established in 2007 as one two sites in a paired unforested vs. forested east- facing hill slope soil measurement network within DCEW. Located above the rain-snow transition zone for winter precipitation on the Boise Front, these pits are proximate to weather station LDP wherein water years 2008-2011 averaged 762 mm precipitation, with snowpack generally one meter deep or less, December through April. Soil at this forested site includes high organic content topsoil over sandy loam, less than one meter deep overlying fractured crystalline bedrock. Vegetation includes Ponderosa pine and Douglas fir forest with deciduous shrubs below dense canopy. Soil moisture and temperature is measured within one soil pit with sensor pairs of 0.5 meter lateral separation at 10, 20 and 40 cm depth. In total, the pit contains six Campbell Scientific CS605 TDR water content sensors and three thermocouple temperature sensors. Tensiometers have been emplaced at each of the three measurements depths, but have not been employed. A snow depth sensor was installed October 2012. For water years prior to 2013, data is provided at hourly intervals, at 15 minute intervals thereafter. ANNUAL ERRORS/GAPS/UPDATES: 2007- Weather Station is purchased by Dr. Jim McNamara, research group. Constructed, programmed and installed by graduate student Aurele Montagne. cr10x logger and sensors as outlined above. Soil data valid from Sep 12, 2007. Datastream officially initiated 10/1/2007 with some problems occurring until 10/5/2007. Minor gaps 11/17-11/19, late Dec due to power issues. 2008- Sporadic data gaps occur Jan 7 through mid Feb. No soil data from 8/3/2008 to end of 2008. 2009- Data gaps 1/8,9-Jan 19, Sporadic data gaps mid to end of Dec. 2010- Sporadic data gaps Jan; 7/21-8/3; late Nov-Dec. 2011- operational 2012- Data gaps 10/24-10/29. 2013- Data gap1/1, 1/9-1/12. 2014- 10x logger replaced with cr1000 logger 9/16/14. Data gap 9/16-9/21. 2015- operational 2016- sporadic gaps late jan - feb 19, low bat, program changes. Multiple program changes in 2016. Minor gaps occur at program changes. East pit disturbed 9/20/16 to repair shallow heatflux sensor. 2017- heat flux plate #2 fails. splice fails also. CHANGED OUTPUT TO HRLY AVG ON ALL VALUES. 2018-2021 - pit performance is good. one flux plate remains operational. pit and flux sensors provided in separate files. NOTE: cURRENT YEAR DATA IS PROVISIONAL. All data sets may be error corrected at year-end. Precipitation data and snow data undergo smoothing and additional data filter processing at year end in contrast to raw data that may be published "realtime".