Joshua C Koch, Ph.D.
Surface water / groundwater interactions; hyporheic zone hydrology and biogeochemistry; carbon, nitrogen, and phosphorus cycling; flow above / through frozen ground; preferential flow and soil pipe formation and transport.
Professional Experience
2011 - Present Research Hydrologist, U.S. Geological Survey (USGS), Anchorage, AK
2006 - 2011 Student Hydrologist, Branch of Regional Research, USGS, Boulder, CO
2005 - 2006 Research Assistant, Institute of Alpine and Arctic Research, University of Colorado, Boulder
2003 - 2005 Research Assistant, Semi-Arid Hydrology and Riparian Areas, University of Arizona, Tucson, AZ
2002 - 2003 Hydrologist Intern, Branch of Regional Research, USGS, Lakewood, CO
2001 - 2002 Hydrologist Intern, MA-RI Water District, USGS, Northborough, MA
Education and Certifications
PhD 2010 University of Colorado, Boulder, CO Civil, Environmental, and Architectural Engineering
MS 2005 University of Arizona, Tucson, AZ Department of Hydrology
BA 2001 Wesleyan University, Middletown, CT Earth and Environmental Sciences
Affiliations and Memberships*
American Geophysical Union, Hydrology and Cryosphere Sections
American Water Resources Association - Alaska Chapter
Association of Polar Early Career Scientists
Science and Products
Dissolved organic carbon and nitrogen release from boreal Holocene permafrost and seasonally frozen soils of Alaska
Soil physical, hydraulic, and thermal properties in interior Alaska, USA: Implications for hydrologic response to thawing permafrost conditions
Ice wedge degradation and stabilization impacts water budgets and nutrient cycling in Arctic trough ponds
Comparative nest survival of three sympatric loon species breeding in the Arctic
Dissolved organic carbon and nitrogen release from boreal Holocene permafrost and seasonally frozen soils of Alaska
Nutrient dynamics in partially drained arctic thaw lakes
Patterns and controls of mercury accumulation in sediments from three thermokarst lakes on the Arctic Coastal Plain of Alaska
Tracer-based evidence of heterogeneity in subsurface flow and storage within a boreal hillslope
Potential effects of permafrost thaw on arctic river ecosystems
Multidecadal increases in the Yukon River Basin of chemical fluxes as indicators of changing flowpaths, groundwater, and permafrost
Lateral and subsurface flows impact arctic coastal plain lake water budgets
Landscape effects of wildfire on permafrost distribution in interior Alaska derived from remote sensing
Surface water connectivity drives richness and composition of Arctic lake fish assemblages
Science and Products
Dissolved organic carbon and nitrogen release from boreal Holocene permafrost and seasonally frozen soils of Alaska
Soil physical, hydraulic, and thermal properties in interior Alaska, USA: Implications for hydrologic response to thawing permafrost conditions
Ice wedge degradation and stabilization impacts water budgets and nutrient cycling in Arctic trough ponds
Comparative nest survival of three sympatric loon species breeding in the Arctic
Dissolved organic carbon and nitrogen release from boreal Holocene permafrost and seasonally frozen soils of Alaska
Nutrient dynamics in partially drained arctic thaw lakes
Patterns and controls of mercury accumulation in sediments from three thermokarst lakes on the Arctic Coastal Plain of Alaska
Tracer-based evidence of heterogeneity in subsurface flow and storage within a boreal hillslope
Potential effects of permafrost thaw on arctic river ecosystems
Multidecadal increases in the Yukon River Basin of chemical fluxes as indicators of changing flowpaths, groundwater, and permafrost
Lateral and subsurface flows impact arctic coastal plain lake water budgets
Landscape effects of wildfire on permafrost distribution in interior Alaska derived from remote sensing
Surface water connectivity drives richness and composition of Arctic lake fish assemblages
*Disclaimer: Listing outside positions with professional scientific organizations on this Staff Profile are for informational purposes only and do not constitute an endorsement of those professional scientific organizations or their activities by the USGS, Department of the Interior, or U.S. Government