Kikuchi, Colin P.

13 items:

Runoff sources and flow paths in a partially burned, upland boreal catchment underlain by permafrost Boreal soils in permafrost regions contain vast quantities of frozen organic material that is released to terrestrial and aquatic environments via subsurface flow paths as permafrost thaws. Longer flow paths may allow chemical reduction of solutes, nutrients, and contaminants, with implications for greenhouse gas emissions and aqueous export. Predicting boreal catchment runoff is complicated by soil heterogeneities related to variability in active layer thickness, soil type, fire history, and preferential flow potential. By coupling measurements of permeability, infiltration potential, and water chemistry with a stream chemistry end-member mixing model, we tested the hypothesis that organic soils and burned slopes... Categories: Publication; Types: Citation; Tags: Modeling, Monitoring 2-Standardized Stream and Lake Information, Monitoring 3-Improve Permafrost Mapping, and Monitoring
Spatially telescoping measurements for characterization of ground water - surface water interactions along Lucile Creek, Alaska The suite of measurement methods available to characterize fluxes between groundwater and surface water is rapidly growing. However, there are few studies that examine approaches to design of field investigations that include multiple methods. We propose that performing field measurements in a spatially telescoping sequence improves measurement flexibility and accounts for hydrologic scale while still allowing for parsimonious experimental design. We applied this spatially telescoping approach in a study of ground water-surface water (GW-SW) interaction during base flow conditions along Lucile Creek, located near Wasilla, Alaska. Catchment-scale data, including channel geomorphic indices and hydrogeologic transects,... Categories: Publication; Types: Citation; Tags: M2-Standardized Stream and Lake Information
Shallow Groundwater in the Matanuska-Susitna Valley, Alaska—Conceptualization and Simulation of Flow Categories: Publication; Types: Citation; Tags: M2-Standardized Stream and Lake Information
Runoff sources and flow paths in a partially burned, upland boreal catchment underlain by permafrost Boreal soils in permafrost regions contain vast quantities of frozen organic material that is released to terrestrial and aquatic environments via subsurface flow paths as permafrost thaws. Longer flow paths may allow chemical reduction of solutes, nutrients, and contaminants, with implications for greenhouse gas emissions and aqueous export. Predicting boreal catchment runoff is complicated by soil heterogeneities related to variability in active layer thickness, soil type, fire history, and preferential flow potential. By coupling measurements of permeability, infiltration potential, and water chemistry with a stream chemistry end-member mixing model, we tested the hypothesis that organic soils and burned slopes... Categories: Publication; Types: Citation; Tags: Modeling, Monitoring 2-Standardized Stream and Lake Information, Monitoring 3-Improve Permafrost Mapping, and Monitoring
Runoff sources and flow paths in a partially burned, upland boreal catchment underlain by permafrost Boreal soils in permafrost regions contain vast quantities of frozen organic material that is released to terrestrial and aquatic environments via subsurface flow paths as permafrost thaws. Longer flow paths may allow chemical reduction of solutes, nutrients, and contaminants, with implications for greenhouse gas emissions and aqueous export. Predicting boreal catchment runoff is complicated by soil heterogeneities related to variability in active layer thickness, soil type, fire history, and preferential flow potential. By coupling measurements of permeability, infiltration potential, and water chemistry with a stream chemistry end-member mixing model, we tested the hypothesis that organic soils and burned slopes... Categories: Publication; Types: Citation; Tags: M2-Standardized Stream and Lake Information, M3-Improve Permafrost Mapping, Modeling, and Monitoring

ScienceBase brings together the best information it can find about USGS researchers and offices to show connections to publications, projects, and data. We are still working to improve this process and information is by no means complete. If you don't see everything you know is associated with you, a colleague, or your office, please be patient while we work to connect the dots. Feel free to contact sciencebase@usgs.gov.