10/31/12, Boise State University, Dept of Geosciences, Hydrologic Sciences, Jim McNamara Research Director, Pam Aishlin Data Management

Data provided herein is for the Treeline weather station of Dry Creek Experimental Watershed, Boise, Idaho.
Data includes soil moisture data across a SW-NE transect apprx 200 m in length 
perpendicular to the stream channel in the Treeline catchment at approximately 5000 ft, 1610 m elevation. 
The transect includes a steep SW facing and opposite steep NE facing slope.


DATA STREAM:  

1. The Treeline soil pit transect was installed by Boise State University in 2002 with data collection initiated in 2003. 
Data collection and site maintenance is provided by Boise State University Hydrologic Sciences. Instruments installed 
include Campbell Scientific TDR soil moisture sensors and, for some pits, custom built soil tensiometers.  

2. Data files collected via Campbell Scientific datalogger. 2013 - gap 8/20-11/1 upgraded from 10x logger to cr1000. 

3. Data is quality checked and post processed for gapfilling, noise filtering and/or corrected according to established 
instrument calibrations. 


DATA/INSTRUMENT NOTES:

Tensiometers were decommissioned in 2004.  Tensiometer data is available upon request.  
Soil moisture data prior to 2008 is available upon request. 

Two soil pit transects were installed, one is named "upper transect", being upgradient of the "lower transect" relative to 
catchment geometry.  These transects are separated by approximately 10 meters. The transects cross the basin perpendicular
to the catchement channel and thus include "north facing" and "south facing" aspects, although these are actually 
northeast facing and southeast facing as the catchment channel trends southeast.  Additionally each pit is identified by
distance upslope from the stream channel. Each sensor is identified by emplacement depth in cm.  The two transects combined 
include 20 pits with each containing 2 or three sensors at successive depths. 

Most of these Soil Site data files contain multiple fields, one field (column) for each sensor at a given depth and 
pit location. The naming protocal for which addresses aspect, upper vs lower transect, distance upslope from stream 
channel in meters and sensor depth in centimeters.  For example, NU5_13 represents a sensor on the north facing slope of
the upper transect in a pit located 5 meters upslope from the channel with sensor depth at 13 cm. 

The south-facing datalogger was decommissioned in 2008, from which time all data for north and south facing
pits have been collected by the datalogger located on the north facing  slope.  

TL soil data is provided at hourly increments.  This increment was temporarily changed to 15 minute, October 2012 through March 2013,
for the transect data. 


No temperature data is paired with soil data for this transect. 


ERRORS/GAPS/UPDATES:

TL transect pits

2008 - 2009 - note 2008 and early 2009 data were collected hourly, though not consistently on the hour. Timestamps provide time
of measurement. Program changes were emplaced 5/21/2008 to combine datalogging for n and s pits on one logger vs. prior two loggers. 
npit data is noisy. 

2010-2012 - numerous minor gaps 11/23/2010 to 1/27/2011 due to power issues, power began to drop over night, 
gap 12/27/10 to 01/15/11 data loss due to work on logger. minor gaps 1/15/11 - 1/19/11, gap 01/27/11 to 02/05/11 
sensor su20_12 incurs repeated failure.  North facing slope data is noisy, including erroneous values > 1 
and negative values. 

2012 - numerous gaps occur, totalling 27 days. not gapfilled

2013 - gap 8/20-11/1 upgraded from 10x logger to cr1000 during this gap. 

2014- no gaps.

2015 - no gaps.  North face transect continues to perform poorly, best sensors are ND7_44, ND0_8. Poorly performing sensors on 
southface transect are SD30, SU30.

2016 - no gaps. See N and S face sensor errors above. 

2017 - 2/16 1300 gap. minor gaps AND erroneous data late dec, low bat. See N and S face sensor errors above. 

2018 - loose wire at sfacing logger box reemplaced.  minor gaps jan and feb, low bat. See N and S face sensor errors above. 
Additionally, at this point, the N face can be considered at completely failed, while additional sensors on the S face 
are showing increased noise, e.g. SD0_15 minor noise.  SD30 jan no data and SD30shall increased noise.  
SU30_70 and SU30_18 noisy.