Please use this identifier to cite or link to this item: https://hdl.handle.net/11681/34103
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dc.contributor.authorDortch, Mark S.-
dc.contributor.authorRyder, Jodi L.-
dc.contributor.authorGerald, Jeffrey A.-
dc.contributor.authorJohnson, Billy E.-
dc.date.accessioned2019-09-19T12:57:17Z-
dc.date.available2019-09-19T12:57:17Z-
dc.date.issued2019-09-
dc.identifier.govdocERDC/EL TR-19-12-
dc.identifier.urihttps://hdl.handle.net/11681/34103-
dc.identifier.urihttp://dx.doi.org/10.21079/11681/34103-
dc.descriptionTechnical Report-
dc.description.abstractThe Training Range Environmental Evaluation and Characterization System (TREECS™) was developed for the U. S. Army to forecast the fate of and risk from munitions constituents (MC) (e.g., high explosives and metals), within, and transported from, firing/training ranges to surface water and groundwater. The military footprint of the United States (U.S.) in the Arctic region falls within the state of Alaska, where the U.S. Army manages approximately 10% of all active Army training lands worldwide. Primary recalcitrant contaminants of concern at active and previously-used training ranges include energetics, high explosives, and heavy metals. There are limited management tools for assessing contaminant fate and transport and identifying risks in Arctic environments. TREECS™ can handle a wide variety of site conditions and has been applied to a variety of temperate sites. However, previous versions had limitations for application to Arctic conditions. The work reported herein was conducted to overcome these limitations. This report describes the changes implemented in TREECS™ for handling Arctic conditions as well as application test results.en_US
dc.description.sponsorshipEnvironmental Quality and Installations Program (U.S.)en_US
dc.description.tableofcontentsAbstract .................................................................................................................................... ii Figures and Tables ................................................................................................................... v Preface ................................................................................................................................... viii List of Acronyms, Abbreviations, and Symbols .................................................................. ix 1 Introduction ...................................................................................................................... 1 1.1 Background ........................................................................................................ 1 1.2 Objectives ........................................................................................................... 2 1.3 Approach ............................................................................................................ 3 2 Overall Plan ....................................................................................................................... 6 2.1 Surface soil water movement and contaminant F/T with freeze/thaw .................................................................................................................. 6 2.1.1 Model reviews ............................................................................................................. 6 2.1.2 Hydrus-1D tests ........................................................................................................... 8 2.1.3 Conclusions ............................................................................................................... 10 2.2 Groundwater flow and transport .....................................................................11 2.3 Soil interflow and transport ........................................................................... 12 3 Snowfall, Accumulation, and Melt ............................................................................... 15 3.1 Background ......................................................................................................15 3.2 Description of Snow17 .................................................................................... 16 3.3 Conversion of snow cover from SWE to actual depth ................................... 18 3.4 Implementation of Snow17 ............................................................................ 19 3.5 TREECS™ Snow17 testing .............................................................................. 25 3.5.1 Water budget verification ......................................................................................... 25 3.5.2 Sensitivity testing ...................................................................................................... 26 3.5.3 Validation of snow cover ........................................................................................... 27 4 Soil Thermal Regime ...................................................................................................... 32 4.1 Implementation of the GIPL model and input ............................................... 32 4.2 GIPL model output .......................................................................................... 40 4.3 TREECSTM GIPL verification and validation ................................................... 45 5 Surface Soil Hydrology .................................................................................................. 49 5.1 Description of Arctic surface soil hydrology model ....................................... 49 5.2 Implementation of the Arctic surface soil hydrology model ......................... 56 5.3 Water balance testing ..................................................................................... 57 6 Changes to the HGCT .................................................................................................... 59 7 Soil Fate Model .............................................................................................................. 62 7.1 Description of changes for the Arctic soil fate model ................................... 62 7.2 Implementation of the Arctic soil fate model and related processors ........ 65 8 TREECS™ Application Protocol for Arctic ................................................................... 69 8.1 General overview ............................................................................................ 69 8.2 TREECS™ application methodology ............................................................... 71 9 Demonstration Applications ......................................................................................... 76 9.1 General study plan .......................................................................................... 76 9.2 Selection of AOI and site description .............................................................. 77 9.3 Application inputs ........................................................................................... 80 9.3.1 HGCT inputs ............................................................................................................... 81 9.3.2 Soil fate model inputs ............................................................................................... 82 9.3.3 Vadose zone and aquifer model inputs ................................................................... 83 9.3.4 Soil interflow fate/transport model inputs .............................................................. 84 9.3.5 Plus Operator model inputs ...................................................................................... 85 9.3.6 CMS surface water model inputs ............................................................................. 85 9.4 Model results for base case scenario ........................................................... 86 9.4.1 Soil AOI concentrations and fluxes .......................................................................... 87 9.4.2 Soil interflow mass fluxes to surface water ............................................................. 92 9.4.3 Combined mass fluxes to surface water ................................................................. 93 9.4.4 Surface water and sediment concentrations .......................................................... 94 9.5 Model results for scenario 2 .......................................................................... 98 9.5.1 Soil AOI concentrations and fluxes .......................................................................... 98 9.5.2 Vadose zone fluxes and aquifer concentrations ..................................................... 99 9.5.3 Soil interflow mass fluxes to surface water ........................................................... 101 9.5.4 Combined mass fluxes to surface water ............................................................... 101 9.5.5 Surface water and sediment concentrations ........................................................ 102 10 Summary and Recommendations ............................................................................. 105 References .......................................................................................................................... 108 Appendix A: GIPL Input and Output files ......................................................................... 113 Report Documentation Page-
dc.format.extent136 pages / 7.939 Mb-
dc.format.mediumPDF-
dc.language.isoen_USen_US
dc.publisherEnvironmental Laboratory (U.S.)en_US
dc.publisherEngineer Research and Development Center (U.S.)-
dc.relation.ispartofseriesTechnical Report (Engineer Research and Development Center (U.S.)) ; no. ERDC/EL TR-19-12-
dc.rightsApproved for Public Release; Distribution is Unlimited-
dc.sourceThis Digital Resource was created in Microsoft Word and Adobe Acrobat-
dc.subjectFate/transport modelingen_US
dc.subjectMulti-mediaen_US
dc.subjectFreeze/thaw conditionsen_US
dc.subjectPermafrosten_US
dc.titleDevelopment and testing of the Training Range Environmental Evaluation and Characterization System (TREECS™) for Arctic/sub-Arctic conditionsen_US
dc.typeReporten_US
Appears in Collections:Technical Report

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