Runoff and erosion from small forest watersheds on the Priest River Experimental Forest

Metadata:
Identification_Information:
Citation:
Citation_Information:
Originator: Miller, Ina S.
Originator: Elliot, William J.
Originator: Glaza, Brandon D.
Publication_Date: 2021
Title:
Runoff and erosion from small forest watersheds on the Priest River Experimental Forest
Geospatial_Data_Presentation_Form: tabular, vector, and raster digital data
Publication_Information:
Publication_Place: Fort Collins, CO
Publisher: Forest Service Research Data Archive
Online_Linkage: https://doi.org/10.2737/RDS-2021-0038
Description:
Abstract:
Ten small watersheds ranging in size from 1.7 to 6.5 hectares (ha) were installed at the Priest River Experimental Forest (PREF) in the northern panhandle of Idaho approximately 12 kilometers (km) (7 miles (mi)) northeast of Priest River, Idaho. The long term objective of the study was to compare impacts of different management activities, simulated wildland fire and salvage logging from those wildland fire simulations. No natural disturbances or treatments occurred on any of the watersheds during the first three years of the study. Two watersheds were designated as controls and the remaining eight watersheds received treatments between 2006-2009; a timeline with the treatment schedule is provided within the supplement folder. Weather data for this publication contains daily temperature, relative humidity, precipitation, wind speed, and solar radiation recorded from approximately 2003 through 2010. During 2006-2007, hemispheric photos were collected at the snow water equivalent (SWE) collection points for nine of the ten watersheds before and after the treatments. Last the GIS folder provides a shaded relief map of the hillslope and raster image file of the PREF area, along with shapefiles providing the boundaries of each watershed, point locations for weather stations, and the snow course within each watershed.
Purpose:
The purpose of this study is to measure the watershed impacts of current forest fuel management practices, simulated wildfire, and to present the runoff and erosion rates observed on these watersheds prior to and following any treatment in order to evaluate natural variability in small watershed studies.
Supplemental_Information:
For additional information regarding this study and the pre- and post-fire analyses of these data see Elliot and Glaza (2007 and 2009).
Time_Period_of_Content:
Time_Period_Information:
Range_of_Dates/Times:
Beginning_Date: 2003
Ending_Date: 2010
Currentness_Reference:
Ground condition
Status:
Progress: Complete
Maintenance_and_Update_Frequency: None planned
Spatial_Domain:
Description_of_Geographic_Extent:
Ten small watersheds ranging in size from 1.7 to 6.5 hectares (ha) were installed at the Priest River Experimental Forest (PREF) in the northern panhandle of Idaho approximately 12 kilometers (km) (7 miles (mi)) northeast of Priest River, Idaho. A map showing the location of this study can be found in \Supplements\PREF_BR_LocMap.pdf.
Bounding_Coordinates:
West_Bounding_Coordinate: -116.48000
East_Bounding_Coordinate: -116.48000
North_Bounding_Coordinate: 48.35000
South_Bounding_Coordinate: 48.35000
Keywords:
Theme:
Theme_Keyword_Thesaurus: ISO 19115 Topic Category
Theme_Keyword: climatologyMeteorologyAtmosphere
Theme_Keyword: environment
Theme_Keyword: geoscientificInformation
Theme_Keyword: inlandWaters
Theme:
Theme_Keyword_Thesaurus: National Research & Development Taxonomy
Theme_Keyword: Ecology, Ecosystems, & Environment
Theme_Keyword: Hydrology, watersheds, sedimentation
Theme_Keyword: Fire
Theme_Keyword: Wildland/urban interface
Theme_Keyword: Natural Resource Management & Use
Theme_Keyword: Forest management
Theme:
Theme_Keyword_Thesaurus: None
Theme_Keyword: biomass reduction
Theme_Keyword: sedimentation
Theme_Keyword: wildland fire
Theme_Keyword: small watershed
Theme_Keyword: hydrology
Place:
Place_Keyword_Thesaurus: None
Place_Keyword: Priest River Experimental Forest
Place_Keyword: Idaho
Access_Constraints: None
Use_Constraints:
These data were collected using funding from the U.S. Government and can be used without additional permissions or fees. If you use these data in a publication, presentation, or other research product please use the following citation:

Miller, Ina S.; Elliot, William J.; Glaza, Brandon D. 2021. Runoff and erosion from small forest watersheds on the Priest River Experimental Forest. Fort Collins, CO: Forest Service Research Data Archive. https://doi.org/10.2737/RDS-2021-0038
Browse_Graphic:
Browse_Graphic_File_Name: \Supplements\PREF_BR_LocMap.pdf
Browse_Graphic_File_Description:
Map and inset location of the PREF watersheds and weather stations.
Browse_Graphic_File_Type: PDF
Data_Set_Credit:
This project was funded by the USDA Forest Service, Rocky Mountain Research Station and the National Fire Plan.
Cross_Reference:
Citation_Information:
Originator: Elliot, William J.
Originator: Glaza, Brandon D.
Publication_Date: 2007
Title:
Variability in runoff and erosion from small forest watersheds
Geospatial_Data_Presentation_Form: conference proceedings
Series_Information:
Series_Name: American Society of Agricultural and Biological Engineers
Other_Citation_Details:
2007 ASAE Annual Meeting; June 17-20 in Minneapolis, MN
Online_Linkage: https://doi.org/10.13031/2013.22994
Cross_Reference:
Citation_Information:
Originator: Elliot, William J.
Originator: Glaza, Brandon D.
Publication_Date: 2009
Title:
Impacts of forest management on runoff and erosion
Geospatial_Data_Presentation_Form: conference proceedings
Other_Citation_Details:
pages 117-127
Online_Linkage: https://www.fs.usda.gov/treesearch/pubs/34683
Larger_Work_Citation:
Citation_Information:
Originator: Webb, Richard M. T.
Originator: Semmens, Darius J.
Publication_Date: 2009
Title:
Planning for an Uncertain Future-Monitoring, Integration, and Adaptation; Proceedings of the Third Interagency Conference on Research in the Watersheds
Geospatial_Data_Presentation_Form: conference proceedings
Series_Information:
Series_Name: U.S. Geological Survey Scientific Investigations Report
Issue_Identification: 2009-5049
Other_Citation_Details:
8-11 September, 2008, Estes Park, CO
Cross_Reference:
Citation_Information:
Originator: Srivastava, Anurag
Originator: Dobre, Mariana
Originator: Wu, Joan Q.
Originator: Elliot, William J.
Originator: Bruner, Emily A.
Originator: Dun, Shuhui
Originator: Brooks, Erin S.
Originator: Miller, Ina S.
Publication_Date: 2013
Title:
Modifying WEPP to improve streamflow simulation in a Pacific Northwest watershed
Geospatial_Data_Presentation_Form: journal article
Series_Information:
Series_Name: Transactions of the ASABE
Issue_Identification: 56(2): 603-611
Online_Linkage: https://www.fs.usda.gov/treesearch/pubs/43824
Online_Linkage: https://doi.org/10.13031/2013.42691
Cross_Reference:
Citation_Information:
Originator: Dobre, Mariana
Originator: Elliot, William J.
Originator: Wu, Joan Q.
Originator: Link, Timothy E.
Originator: Miller, Ina S.
Publication_Date: 2011
Title:
Effects of forest cover and environmental variables on snow accumulation and melt
Geospatial_Data_Presentation_Form: conference proceedings
Other_Citation_Details:
p. 114-119
Online_Linkage: https://www.fs.usda.gov/treesearch/pubs/41500
Larger_Work_Citation:
Citation_Information:
Originator: Medley, C. Nicolas (ed.)
Originator: Patterson, Glenn (ed.)
Originator: Parker, Melanie J. (ed.)
Publication_Date: 2011
Title:
Proceedings of the Fourth Interagency Conference on Research in the Watersheds: Observing, Studying, and Managing for Change
Geospatial_Data_Presentation_Form: conference proceedings
Series_Information:
Series_Name: Scientific Investigations Report
Issue_Identification: 2011-5169
Publication_Information:
Publication_Place: Reston, VA
Publisher: U.S. Geological Survey
Other_Citation_Details:
Sept 26-30, 2011; Fairbanks, AK
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Data_Quality_Information:
Attribute_Accuracy:
Attribute_Accuracy_Report:
Data from this study were collected by trained technicians and professionals. Upon analysis outliers that were deemed inaccurate have been culled from the data. All instrumentation was calibrated by the manufacturer or in our lab within a +/- 3% accuracy.

ADDITIONAL INFORMATION - VERIFIED

Snow Depth:
March 15, 2006 - there were 8 inches of new fallen snow that morning, and it was actively snowing when measuring watersheds 7 and 8
March 30, 2007 - no snow at any points. A bit of snow in shady patches on watershed 10
April 30, 2009 - no snow at any points
* Snow depths recorded in the snow depth data file versus the SWE data file vary. See the methods section below for more details.
Logical_Consistency_Report:
The data are logically consistent. The consistency was verified as part of the quality assurance that occurred during data analysis.
Completeness_Report:
Information regarding how missing data are recorded are defined in the description of each data file. Data missing from equipment malfunction are also noted in the data files.

SNOW WATER EQUIVALENT
February 25-29, 2004 - did not collected snow water equivalent (SWE) for watersheds 4, 7 and 8. Reason unknown.


RUNOFF
Missing data caused by equipment malfunction or environmental factors. The flumes and corresponding stilling wells were covered, but not heated. This may have caused the float device in the stilling well to freeze in place during the winter. The equipment was powered by solar panels and batteries. If solar panels could not keep up with power needs, batteries discharged. Another factor is wildlife, rodents chewing wires or larger animals ‘investigating’ equipment sometimes results in a disruption of data collected.


GROUND COVER
2008 - No samples were taken
2006 - some of the cover data were taken twice for watersheds 3, 4, 7 and 8. The first taken in May 2006 (pretreatment), the second round of data logged during October 2006 (after the simulated wildfire).
Lineage:
Methodology:
Methodology_Type: Field
Methodology_Description:
BACKGROUND
The study plan presented two main treatments for the Priest River Experimental Forest (PREF) study, wildfire and thinning, as well as an undisturbed control. The thinning and mastication was completed in 2007 and a couple of the watersheds were prescribed (broadcast) burned after thinning in 2009 (see \Supplements\PREF_treatment_schedule.pdf for treatment and years). Following the wildfire treatment (2006), half of the wildfire watersheds would be treated with a salvage logging operation to remove large trees with economic value (2007). Information about treatments and each watershed can also be found in \Supplements\PREF_SmallWatershed_parameters.pdf.

The watersheds to be treated with simulated wildfire were all under 5 ha. Experience by researchers trying to measure sediment generated by wildfires had shown that building weirs and sediment basins to measure sediment from larger areas would be beyond the research budget (Robichaud 2005). Also, a number of wildfire and fuel management treatments have been completed on watersheds of this size (e.g. Covert et al. 2005), so keeping a similar size would make observations from these studies easy to compare to a number of studies of similar scale.

The Priest River watersheds have a south-southwest aspect (\Supplements\PREF_BR_LocMap.pdf) and range in elevation by almost 200 meters, 857 meters at watershed 1 and 1040 meters at watershed 10. (\Supplements\PREF_SmallWatershed_parameters.pdf). The watershed areas of the control are 5.1 ha (watershed 6) and 5.9 ha (watershed 10).

Two weather stations were installed, as one was considered insufficient, because of a larger variation in elevation among the watersheds.

Weather station, cover and soil loss are the only data collected through 2010. During 2009 all electronics (except the weather stations) were pulled out of the site. During 2010 the larger items were collected (i.e. flumes, sediment traps etc.).

In addition, hemispheric photos were collected at the SWE points in each watershed except watershed 7 (unknown reason). These photos were taken before and after the treatments during 2006-2007. Data outlining the procedure and nomenclature can be found in \Supplements\HemisphericPhotoFieldProcedure.pdf and \Supplements\HemisphericPhoto_index-nomenclature.pdf.


WEATHER DATA
One weather station was installed between watershed 1 and watershed 2. The second weather station was installed between watersheds 6 and 7 (\Supplements\PREF_BR_LocMap.pdf). Daily weather station data were collected with Campbell Scientific data logger and programs. Connected to the data logger were the following peripherals: wind speed and direction, solar radiation, ambient temperature and humidity, and precipitation monitors. Both stations were collecting data until 2010. However, weather station #2 precipitation totals are deemed low because of equipment malfunction.


SNOW DATA
Snow data were collected at various points in each watershed at PREF from February until the end of the snow season every year, 2004 to 2009. Collection was performed by following the Natural Resource Conservation Service (NRCS) standards (\Supplements\NRCS_SnowSurveySamplingGuide_AgHandbk196.pdf). Snow data are provided in two different files: snow depth and snow water equivalent (SWE).

Discrepancies occurred between the snow depths of snow depth file (\Data\2004_2009_PREF_BR_SnowDepthData.csv) and the depths taken to determine SWE (\Data\2004_2009_PREF_BR_SWE.csv). During collection, two people were taking samples, one collecting snow depth and another person taking a depth for the calculation of SWE. Because two different people were performing a collection of depth separately, following one another rather than sharing the depth measurement, the measurements between the two depths collected are variable. It is likely that both parties collected sample for depth around central point and variations could possibly be from a variety of issues: drifting snow, additional snow accumulation and/or human error (i.e. finding the correct stake to take measurements, etc.). The end analysis is that the SWE sampling was calculated with the depths measured from one individual and are valid measurements.


GROUND COVER
Groundcover was measured on all the watersheds on a 60-meter (m) grid. At each measurement point, a 1 square meter frame with 100 points was placed on the ground and the material beneath the x-sections of the grid recorded (see \Supplements\FieldProcedures_Cover_watersheds.pdf). Cover classes were mineral soil, ash, rock, branches, organic material, and charcoal. The number of points in each class was converted to a percent and averaged for each watershed. Ground cover was collected through 2010. Because the prescribed burns on watershed 5 and 9 took place the year before, it was decided that cover data may prove useful to see how much the vegetation had recovered.


RUNOFF
For the PREF study, h-flumes for lower flows (control, thinning, mastication) and V-notch weirs for anticipation of higher flows (simulated wildfire) were installed. Only three watersheds recorded runoff: watersheds, 1, 6 and 10.

For the control, thinning/mastication and thinning plus prescribed fire watersheds, metal borders were installed at the bottom of each watershed outlet to divert the runoff water to a 300 millimeter (mm) pipe. The pipe conveyed the water to a large plastic box which served as a sediment trap (\Supplements\BBEF3_Flume.jpg). The sediment trap is covered, and the volume is approximately 1 cubic meter. The outflow from the trap is diverted to a 2-m long fiberglass trough leading to a 300 mm fiberglass h-flume with a stilling basin. Flow depth in the h-flume is measured with a magneto restrictive float device and recorded at regular intervals on a nearby data logger. Data for runoff is reported daily in data files.

The wildfire sites are designed similarly to those used in wildfire erosion studies (Robichaud 2005). A 2-m high sheet metal and wood post barrier is installed across the watershed outlet. A 300-mm vee notch is cut in the sheeting to serve as a vee-notch weir, approximately 1.5 m above the elevation of the existing waterway (\Supplements\BBEF10_VeeNotchWeir.jpg). Following a major erosion event, the erosion can be estimated by measuring the accumulated volume of sediment, by excavating all the deposited sediment and weighing the soil accumulated until the collection basin is empty. None of the watersheds that were treated with simulated wildfire at PREF generated sediment delivered to the weirs.

A photo from a Boise Basin Experimental (BBEF) Forest, a sister watershed study to PREF, shows standing water behind the installed V-notch weir from one of the simulated wildfire watersheds (\Supplements\BBEF7_Spring2009.jpg). The equipment installed at this watershed was designed to capture larger runoff flows and erosion from a burned watershed that had limited vegetation. The watersheds at either BBEF or PREF may have recorded runoff provided different runoff measuring equipment had been installed (flume versus weir). The photo illustrates the difficulty in predicting and measuring variable amounts of runoff and erosion.


SOIL LOSS
Most of the soil loss was collected from the control watershed 10. A limited amount of soil loss was collected from the apron in front of the weir caused by animal activity, presumably a burrowing rodent. Watershed 10 is the only watershed that has perennial flow. To collect the soil loss sample entailed draining the sediment trap of water (after diverting the flow) and collecting a grab sample. The remaining soil in the trap was weighed in situ. In the lab, the grab sample was analyzed for soil moisture by weighing the wet grab sample before and after being thoroughly oven dried at 1000 degrees Celsius (C). The moisture content percent was used to calculate the dried weight of the discarded soil measured in situ, for a total soil loss sample weight.


HEMISPHERIC PHOTOS
Hemispheric photos give in situ skyward illustrations from the earth’s surface to a sky view of the canopy. These photos were taken with a Pentax camera outfitted with a fisheye lens. The hemispheric photos were collected at the snow water equivalent points (SWE) in each watershed except watershed 7 (data for watershed 7 is missing). These photos were taken before and after the treatments during 2006-2007. Data outlining the procedure and nomenclature can be found in \Supplements\HemisphericPhotoFieldProcedure.pdf and \Supplements\HemisphericPhoto_index-nomenclature.pdf.
Methodology_Citation:
Citation_Information:
Originator: Robichaud, Pete R.
Publication_Date: 2005
Title:
Measurement of post-fire hillslope erosion to evaluate and model rehabilitation treatment effectiveness and recover
Geospatial_Data_Presentation_Form: journal article
Series_Information:
Series_Name: International Journal of Wildland Fire
Issue_Identification: 14: 475-485
Online_Linkage: https://doi.org/10.1071/wf05031
Methodology_Citation:
Citation_Information:
Originator: Covert, S. A.
Originator: Robichaud, Pete R.
Originator: Elliot, William J.
Originator: Link, T. E.
Publication_Date: 2005
Title:
Evaluation of runoff prediction from WEPP-based erosion models for harvested and burned forest watersheds
Geospatial_Data_Presentation_Form: journal article
Series_Information:
Series_Name: Transactions of the ASAE
Issue_Identification: 48(3): 1091-1100
Online_Linkage: https://doi.org/10.13031/2013.18519
Source_Information:
Source_Citation:
Citation_Information:
Originator: USDA Natural Resources Conservation Service
Publication_Date: 2020
Title:
DEM and IMG for the Priest River Experimental Forest area
Geospatial_Data_Presentation_Form: raster digital data
Publication_Information:
Publisher: Geospatial Data Gateway
Other_Citation_Details:
accessed 11/11/2020
Online_Linkage: https://datagateway.nrcs.usda.gov/
Type_of_Source_Media: Online
Source_Time_Period_of_Content:
Time_Period_Information:
Single_Date/Time:
Calendar_Date: 2020
Source_Currentness_Reference:
Publication Date
Source_Citation_Abbreviation:
NRCS Data Gateway
Source_Contribution:
Digital elevation model (DEM) for the PREF area and the georeferenced IMG file containing topographic features for the PREF area were downloaded from the NRCS Data Gateway web site by selecting the Get Data option on the main page and choosing data surrounding the PREF area.
Process_Step:
Process_Description:
GPS data were logged with a Trimble Pathfinder Pro XR receiver and system equipment. For Forest Service performance testing of the Trimble equipment see \Supplements\ProXR_3-2001.pdf. Watershed boundaries, snow points and weather station locations were collected by USDA Forest Service, Rocky Mountain Research Station (RMRS) crews using the Trimble equipment. Raster data were collected from the datagateway (https://datagateway.nrcs.usda.gov/) provided by USDA. Other files, such as the hillshade file was generated with ArcGIS tools. And last, a georeferenced image file (\Data\GIS\PREF_BR_Rasters\pref_pbs_map.tif) created by Jeff Evans, a past GIS specialist employee, RMRS, Moscow Idaho is in the Raster folder.
Source_Used_Citation_Abbreviation:
NRCS Data Gateway
Process_Date: 2020
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Entity_and_Attribute_Information:
Overview_Description:
Entity_and_Attribute_Overview:
DATA FILES - TABULAR (9)

Below you will find a list and description of tabular data files included in this data publication.

1-2. \Data\2003-2010_PREF_BR_24hr WeatherSta#.csv: Comma-delimited ASCII text file containing 24 hour weather data from 2003 to 2010 from weather station # (where # = 1 or 2) at PREF. The first 20 rows contain header information including blank rows. Cells with a "." denote equipment malfunction.

Variables include:
Date = date (mm/dd/yyyy, where mm=month, dd=day, yyyy=year)
AirTemp Avg (C) = average air temperature for the 24 hour period (degrees Celsius)
RelHumid-Avg (%) = average relative humidity for the 24 hour period (percent)
RelHumid-Max (%) = maximum daily relative humidity for the 24 hour period (percent)
RelHumid-Min (%) = minimum daily relative humidity for the 24 hour period (percent)
SolarRad-Avg (watts/m^2) = daily average solar radiation (watts per square meter)
WindSpeed-S-WVT (Avg) (m/s) = mean wind speed for the 24 hour period (meters per second [m/s])
WindDirec-D1-WVT = unit vector mean direction for the 24 hour period
WindDirec-Sd1-WVT = standard deviation of the direction for the 24 hour period
WindSpeed-Max (m/s) = maximum wind speed for the 24 hour period (m/s)
WindSpeed-Min (m/s) = minimum wind speed for the 24 hour period (m/s)
Precip (mm) = total precipitation measured in the gauge for the 24 hour period (mm)


3. \Data\2004-2009_PREF_BR_SnowDepthData.csv: Comma-delimited ASCII text file containing the snow depth data from 2004 to 2009 from the 10 watersheds at PREF. The first 15 rows contain header information including blank rows. Cells with a "." = no sample taken, "0" = no snow on the ground to measure, and "T" = trace of snow.

NOTE: Discrepancies between the snow depths and the snow water equivalent depths are explained in more detail in the methods section. In summary, two people were taking samples, one person measuring depth, the other person measuring the depth for SWE. First years measurements may see some variations due to two different people performing the collection. Likely that the depths were taken around central point, variations could possibly be from drifting snow, additional snow accumulation and/or human error.

Variables include:
Collection date start = the date which collection of the snow data started
Collection date end = the date which collection of the snow data ended
WS = watershed number of data collection
Plot # = point where data was collected
Depth (cm) = depth of snow (centimeters)


4. \Data\2004-2009_PREF_BR_SWE.csv: Comma-delimited ASCII text file containing the snow water equivalent (SWE) data from 2004 to 2009 from the 10 watersheds at PREF. The first 17 rows contain header information including blank rows. Cells with a "." = calculations to derive the SWE or density were not performed as there was not enough snow to perform these calculations and "T" = trace of snow unless noted otherwise in the Remarks column.

NOTE: Discrepancies between the snow depths and the snow water equivalent depths are explained in more detail in the methods section. In summary, two people were taking samples, one person measuring depth, the other person measuring the depth for SWE. First years measurements may see some variations due to two different people performing the collection. Likely that the depths were taken around central point, variations could possibly be from drifting snow, additional snow accumulation and/or human error.

Variables include:
Collection date start = the date which collection of the snow data started
Collection date end = the date which collection of the snow data ended
WS = watershed number of data collection
Plot # = point where data was collected
Depth (cm) = depth of snow (centimeters)
SWE (cm) = Snow Water Equivalent (centimeters)
Density % = density of snow (percent)
Remarks = remarks recorded by data collector (where
Road = sampled on/near forest road;
Air pocket = sample had air pocket in tube;
Missing stake = the stake for the plot was missing so the plot was not sampled;
Excessive ice = difficulty in coring due to excess ice;
Time constraints = did not complete because of time constraints;
Estimated location = sampled in an estimated location because stake could not be found;
Covered tube = snow over the top of the tube, the snow corer was not long enough for the depth of the snow, if noted, depth will be in cm;
Max depth = maximum snow depth that the equipment will allow to be sampled; and
Too deep = the snow was too deep to be sampled)


5-7. \Data\2004-2009_PREF_BR_WS#_Runoff.csv: Comma-delimited ASCII text files (3) containing 2004 to 2009 watershed runoff data for the specified PREF watershed (WS)# (where # = 1, 6, and 10). The first 8 rows contain header information. Blank cells denote data not measured.

Variables include:
Date = date (mm/dd/yyyy where mm=month, dd=day, yyyy=year)
RO = Runoff (mm) where mm = millimeters


8. \Data\2004-2010_PREF_BR_SoilLoss_WS3_WS10.csv: Comma-delimited ASCII text file containing 2004 to 2010 soil loss data for watersheds 3 and 10 at PREF. The first 10 rows contain header information including blank rows. Cells with a "." denote data not collected.

NOTE: Watershed 3 sample was usually not taken, and the sample taken in 2009 represents animal disturbance on the apron of the weir. Watershed 10 was not sampled in 2008 and 2009 - only 2010. The three year average of the sample acquired from 2010 is 7.4 kilograms per hectare.

Variables include:
WS # = watershed # (WS 3, WS10)
Year = soil loss (weight) collected for specified year in kilograms per hectare (Kg/ha)


9. \Data\2006-2010_PREF_BR_GroundCover.csv: Comma-delimited ASCII text file containing 2006 to 2010 ground cover measurements at PREF. The first 20 rows contain header information. Cells with a "." denote data not collected that year.

Variables include:
M-Y collected = month and year (m-yy) that data were collected (where m = month [M=May, J=June, A=August, O=October]; yy = last two digits of year)
Watershed = small watershed 1-10
Plot code = point sampled within watershed # (1-61)
Mineral fraction = fraction of mineral soil exposed on the surface
Ash fraction = fraction of ash exposed on the surface
Rock fraction = fraction of rock exposed on the surface
Branch fraction = fraction of branch exposed on the surface
Other organic material fraction = fraction of any other organic matter not accounted for exposed on the surface
Charcoal fraction = fraction of charcoal exposed on the surface
Sum = sum of fraction (which equals 1 plus or minus 0.01)
Entity_and_Attribute_Detail_Citation:
none provided
Overview_Description:
Entity_and_Attribute_Overview:
DATA FILES - GEOSPATIAL (25)

Below you will find a list and description of geospatial data files included in this data publication.

1. \Data\GIS\PREF_BR_LocMap.mpk: ArcGIS Map Package file containing a map of the location and layout of the 10 watershed boundaries, snow course points and weather stations of the PREF study. A PDF version of this map is also available: \Supplements\PREF_BR_LocMap.pdf.

2. \Data\GIS\PREF_BR_Rasters\HillShade.tif: Georeferenced TIF file generated within the ArcGIS platform, which helps display the shaded relief of the hillslope, generated from the DEM downloaded from the NRCS Data Gateway web site: https://datagateway.nrcs.usda.gov/ (accessed 11/11/2020).

3. \Data\GIS\PREF_BR_Rasters\ned30m48116.tif: Georeferenced digital elevation model (DEM), downloaded from the NRCS Data Gateway web site: https://datagateway.nrcs.usda.gov/ (accessed 11/11/2020).

4. \Data\GIS\PREF_BR_Rasters\pref_pbs_map.tif: Georeferenced TIF file created by Jeff Evans, a past GIS specialist employee, RMRS, Moscow Idaho. The file represents the topographic features of the PREF area.

5. \Data\GIS\PREF_BR_Shapefiles\WeatherStations.shp: Georeferenced ArcGIS generated shapefile (and associated files) containing a visual representation of the GPS logged data of the two installed weather stations at PREF.

6-15. \Data\GIS\PREF_BR_Shapefiles\ws#_bnd.shp: Georeferenced ArcGIS generated shapefiles (10) (and associated files) containing a visual representation of the GPS logged boundary data of the individual PREF watershed (WS) # (where # = 1-10).

16-25. \Data\GIS\PREF_BR_Shapefiles\ws#_snwcrs.shp: Georeferenced ArcGIS generated shapefiles (10) (and associated files) containing a visual representation of the GPS logged snow course points for the individual PREF watershed (WS) # (where # = 1-10).
Entity_and_Attribute_Detail_Citation:
None
Overview_Description:
Entity_and_Attribute_Overview:
SUPPLEMENTAL FILES (11)

Below you will find a list and description of supplemental files included in this data publication.

1. \Supplements\2004_PREF_ForestStudyPlan.pdf: Portable Document Format file containing a draft of the 2004 study plan "Fuel treatment effects on erosion and sediment delivery at the watershed scale in the Priest River Experimental Forest."

2. \Supplements\BBEF3_Flume.jpg: Joint Photograph Experts Group (JPEG) image file that shows flume set up for the watersheds at both the Boise Basin Experimental Forest (BBEF) and PREF.

3. \Supplements\BBEF7_Spring2009.jpg: JPEG image file which shows water captured behind the weir but not able to measure at the BBEF watershed 7 during the spring of 2009, may apply to the weirs installed at PREF.

4. \Supplements\BBEF10_VeeNotchWeir.jpg: JPEG image file that shows the V-notch weir set up for the watersheds at both the BBEF and PREF.

5. \Supplements\FieldProcedures_Cover_watersheds.pdf: Portable Document Format file outlining the methods of logging cover percent on the watersheds.

6. \Supplements\HemisphericPhoto_index-nomenclature.pdf: Portable Document Format file containing nomenclature detail for the hemispheric photos found in \Supplements\HemisPhotos_AfterTrt and \Supplements\HemisPhotos_BeforeTrt.

7. \Supplements\HemisphericPhotoFieldProcedure.pdf: Portable Document Format file containing methods for taking hemispheric photos.

8. \Supplements\NRCS_SnowSurveySamplingGuide_AgHandbk196.pdf: Portable Document Format file containing methods for sampling snow as documented by the NRCS (https://www.wcc.nrcs.usda.gov/factpub/ah169/SnowSurveySamplingGuideHandout.pdf), accessed 11/11/2020.

9. \Supplements\PREF_BR_LocMap.pdf: Portable Document Format file containing a map and inset location of the PREF watersheds and weather stations.

10. \Supplements\PREF_SmallWatershedParameters.pdf: Portable Document Format file containing a table outlining the variable characteristics of each watershed at PREF.

11. \Supplements\PREF_treatment_schedule.pdf: Portable Document Format file containing a table reflecting the year and type of treatment applied to each watershed at PREF.

12. \Supplements\ProXR_3-2001.pdf: Portable Document Format file containing the performance testing of the Trimble Pathfinder Pro XR GPS.
Entity_and_Attribute_Detail_Citation:
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SUPPLEMENTAL FILES - HEMISPHERIC PHOTOGRAPHS (125)

Below you will find a list and description of hemispheric photographs included in this data publication.

1-60. \Supplements\HemisPhotos_AfterTrt\WS#_TRT_YEAR\WS#_XX_AT.jpg: JPEG image files (60) containing tree canopy photos taken after treatments for the individual PREF watershed (WS) # (where # = 1, 2, 3, 4, 5, 8, and 9). The year (YEAR = 2006 and 2007) and treatment (TRT = Thin, SimWildfire, and SalvageLog) are specified in the filename. Photos were taken at snow course SWE point location XX.

61-108. \Supplements\HemisPhotos_BeforeTrt\WS#_undisturbed\WS#_XX_BT.jpg: JPEG image files (48) containing tree canopy photos taken before treatments for the individual PREF watershed (WS) # (where # = 1, 2, 3, 4, 5, 8, and 9). Photos were taken at snow course SWE point location XX.

109-125. \Supplements\HemisPhotos_BeforeTrt\WS#_CONTROL\WS#_##_Control.jpg: JPEG image files (17) containing tree canopy photos taken of the individual control PREF watershed (WS) # (where # = 6 and 10). Photos were taken at snow course SWE point location XX.
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Contact_Organization_Primary:
Contact_Organization: USDA Forest Service, Research and Development
Contact_Position: Research Data Archivist
Contact_Address:
Address_Type: mailing and physical
Address: 240 West Prospect Road
City: Fort Collins
State_or_Province: CO
Postal_Code: 80526
Country: USA
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Contact Instructions: This contact information was current as of April 2021. For current information see Contact Us page on: https://doi.org/10.2737/RDS.
Resource_Description: RDS-2021-0038
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Metadata documents have been reviewed for accuracy and completeness. Unless otherwise stated, all data and related materials are considered to satisfy the quality standards relative to the purpose for which the data were collected. However, neither the author, the Archive, nor any part of the federal government can assure the reliability or suitability of these data for a particular purpose. The act of distribution shall not constitute any such warranty, and no responsibility is assumed for a user's application of these data or related materials.

The metadata, data, or related materials may be updated without notification. If a user believes errors are present in the metadata, data or related materials, please use the information in (1) Identification Information: Point of Contact, (2) Metadata Reference: Metadata Contact, or (3) Distribution Information: Distributor to notify the author or the Archive of the issues.
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Metadata_Reference_Information:
Metadata_Date: 20210415
Metadata_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: Ina Sue Miller
Contact_Organization: USDA Forest Service, Rocky Mountain Research Station
Contact_Position: Hydrologist
Contact_Address:
Address_Type: mailing and physical
Address: 1221 S. Main Street
City: Moscow
State_or_Province: ID
Postal_Code: 83843
Country: USA
Contact_Voice_Telephone: 208-883-2328
Contact_Electronic_Mail_Address: ina.miller3@usda.gov
Metadata_Standard_Name: FGDC Biological Data Profile of the Content Standard for Digital Geospatial Metadata
Metadata_Standard_Version: FGDC-STD-001.1-1999
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