https://repository.kopri.re.kr/handle/201206/5457 Tue, 07 Apr 2026 05:38:59 GMT 2026-04-07T05:38:59Z https://repository.kopri.re.kr/handle/201206/6584 Title: Validations of a Numerical Model of Solute Transport in a Snowpack Authors: Lee, Jeonghoon Abstract: Snowmelt from seasonal snow covers can be significant in many environments of northern and alpine areas. Water flow and chemical transport resulting from snowmelt have been studied for an understanding of contributions to watersheds or catchments. A Mobile-Immobile water Model (MIM) was developed to describe the movement of ionic tracers through a snowpack by Lee et al. (2008) and Lee et al. (2008b). To validate the model used in the studies, mass balance calculations of the model were conducted and comparisons were made between model results and analytical solutions in this work. Mass balance was calculated based on the fact that change in total mass within a snowpack with time is equal to sum of any change in the flux of water or ionic tracers into and out of the snowpack. Calculations of both water and ionic mass show almost perfect agreement between changes of two water and solute mass fluxes. Comparisons between model results and analytical solutions including wave velocity and effective saturation show almost perfect agreement.catchments. A Mobile-Immobile water Model (MIM) was developed to describe the movement of ionic tracers through a snowpack by Lee et al. (2008) and Lee et al. (2008b). To validate the model used in the studies, mass balance calculations of the model were conducted and comparisons were made between model results and analytical solutions in this work. Mass balance was calculated based on the fact that change in total mass within a snowpack with time is equal to sum of any change in the flux of water or ionic tracers into and out of the snowpack. Calculations of both water and ionic mass show almost perfect agreement between changes of two water and solute mass fluxes. Comparisons between model results and analytical solutions including wave velocity and effective saturation show almost perfect agreement. Sun, 01 Jan 2012 00:00:00 GMT https://repository.kopri.re.kr/handle/201206/6584 2012-01-01T00:00:00Z https://repository.kopri.re.kr/handle/201206/6583 Title: Development of Mathematical Model for Both Solute Transport in Snowand Isotopic Evolution of Snowmelt Authors: Lee, Jeonghoon Abstract: Chemical and isotopic variations of snowmelt provide important clues for understanding snowmelt processes and the timing and contribution of snowmelt to catchment or watershed in spring. The newly developed model includes a hydraulic exchange between mobile and immobile water (ω), and isotopic exchanges between both mobile water and ice (f1) and immobile water and ice (f2). Since the new model is based on the mobile-immobile water conceptualization, which is widely used for describing chemical tracer transport in snow, it allows simultaneous calculations of chemical as well as isotopic variations in snowpack discharge. We compare the model results with a study of solute transport and isotopic evolution of snowmelt in snow, using artificial rain-on-snow experiments with conservative anion (Br-). These observations are used to test the newly developed model and to better understand physical processes in a seasonal snowpack where our model simulates the chemical and isotopic variations.change between mobile and immobile water (ω), and isotopic exchanges between both mobile water and ice (f1) and immobile water and ice (f2). Since the new model is based on the mobile-immobile water onceptualization, which is widely used for describing chemical tracer transport in snow, it allows simultaneous calculations of chemical as well as isotopic variations in snowpack discharge. We compare the model results with a study of solute transport and isotopic evolution of snowmelt in snow, using artificial rain-on-snow experiments with conservative anion (Br-). These observations are used to test the newly developed model and to better understand physical processes in a seasonal snowpack where our model simulates the chemical and isotopic variations. Sun, 01 Jan 2012 00:00:00 GMT https://repository.kopri.re.kr/handle/201206/6583 2012-01-01T00:00:00Z