Environmental Data: EndSplit

Keywords:
END-MEMBER MIXING
END-MEMBER SPLITTING
EVAPOTRANSPIRATION
ISOTOPES
PRECIPITATION
STREAMFLOW
TRACER
Keywords:
END-MEMBER MIXING
END-MEMBER SPLITTING
EVAPOTRANSPIRATION
ISOTOPES
PRECIPITATION
STREAMFLOW
TRACER

Description

R scripts and demonstration data for end-member mixing and splitting: using isotopes and other tracers to determine where streamflow comes from (end-member...

Citation

Kirchner, J. (2019). EndSplit. EnviDat. https://www.doi.org/10.16904/envidat.91.

Resources

  • EndSplit version 1.0 build 2020.05.16

    EndSplit_v1.0_20200516.R implements end-member mixing and splitting. This script is copyright (C) 2020 ETH Zurich and James Kirchner. Public use is permitted under GNU General Public License 3 (GPL3); for details see https://www.gnu.org/licenses/ But… READ THIS CAREFULLY: ETH Zurich and James Kirchner make ABSOLUTELY NO WARRANTIES OF ANY KIND, including NO WARRANTIES, expressed or implied, that this software is free of errors or is suitable for any particular purpose. Users are solely responsible for determining the suitability and reliability of this software for their own purposes. This script implements end-member mixing and end-member splitting, as described in Kirchner and Allen, "Seasonal partitioning of precipitation between streamflow and evapotranspiration, inferred from end-member splitting analysis", Hydrology and Earth System Sciences, 24, 17-39, https://doi.org/10.5194/hess-24-17-2020, 2020. Users publishing results based on these scripts should cite that paper.

    EndSplit version 1.0 build 2020.05.16

  • EndSplit_demo version 1.0 build 2020.05.16

    EndSplit_demo_v1.0_20200516.R demonstrates the application of EndSplit to the Hubbard Brook Watershed 3 isotope data set. It calls EndSplit_v1.0_20200516.R. Both of these scripts are copyright (C) 2020 ETH Zurich and James Kirchner. Public use is permitted under GNU General Public License 3 (GPL3); for details see https://www.gnu.org/licenses/ But… READ THIS CAREFULLY: ETH Zurich and James Kirchner make ABSOLUTELY NO WARRANTIES OF ANY KIND, including NO WARRANTIES, expressed or implied, that this software is free of errors or is suitable for any particular purpose. Users are solely responsible for determining the suitability and reliability of this software for their own purposes. These scripts implement end-member mixing and end-member splitting, as described in Kirchner and Allen, "Seasonal partitioning of precipitation between streamflow and evapotranspiration, inferred from end-member splitting analysis", Hydrology and Earth System Sciences, 24, 17-39, https://doi.org/10.5194/hess-24-17-2020, 2020. Users publishing results based on these scripts should cite that paper.

    EndSplit_demo version 1.0 build 2020.05.16

  • demonstration input data

    # The zip file "demonstration input data.zip" contains 8 demonstration data files (all tab-delimited text): # "Hubbard Brook WS3 isotope data split by sampling date.txt" contains streamflow and precipitation isotope data from Hubbard Brook Watershed 3 isotope data (Campbell and Green, 2019). "Hubbard Brook WS3 daily P and Q 1956-2014.txt" contains daily precipitation and streamflow totals for Hubbard Brook Watershed 3. (USDA Forest Service Northern Research Station, 2016a and 2016b). "Hubbard Brook WS3 isotope data WY2007.txt", "Hubbard Brook WS3 isotope data WY2008.txt", "Hubbard Brook WS3 isotope data WY2009.txt", "Hubbard Brook WS3 daily P and Q WY2007.txt", "Hubbard Brook WS3 daily P and Q WY2008.txt", and "Hubbard Brook WS3 daily P and Q WY2009.txt" contain subsets of these data for the designated water years. As the work product of US federal employees, the data in these files are in the public domain. However, any users of these data should cite the original sources: Campbell, J. L., and Green, M. B.: Water isotope samples from Watershed 3 at Hubbard Brook Experimental Forest, 2006-2010, https://doi.org/10.6073/pasta/f5740876b68ec42b695c39d8ad790cee, 2019. USDA Forest Service Northern Research Station: Hubbard Brook Experimental Forest (US Forest Service): Daily Streamflow by Watershed, 1956 - present, https://doi.org/10.6073/pasta/38b11ee7531f6467bf59b6f7a4d9012b, 2016a. USDA Forest Service Northern Research Station: Hubbard Brook Experimental Forest (US Forest Service): Total Daily Precipitation by Watershed, 1956 - present, https://doi.org/10.6073/pasta/163e416fb108862dc6eb857360fa9c90, 2016b.

    demonstration input data

  • demonstration output files

    These tab-delimited text files were generated by running EndSplit_demo_v1.0_20200516.R (which in turn calls EndSplit_v1.0_20200516.R) under R version 3.6.0, using the input files contained in "demonstration input data.zip"

    demonstration output files