James P McNamara

Soil moisture states , lateral flow , and streamflow generation in a semi-arid , snowmelt-driven catchment

James P McNamara, David G. Chandler, Mark Seyfried, Shiva Achet
2005

Hydraulic connectivity on hillslopes and the existence of preferred soil moisture states in a catchment have important controls on runoff generation. In this study we investigate the relationships… (More)

Controls on the temporal and spatial variability of soil moisture in a mountainous landscape : the signatures of snow and complex terrain

Controls on the temporal and spatial variability of soil moisture in a mountainous landscape: the signatures of snow and complex terrain C. J. Williams, J. P. McNamara, and D. G. Chandler Northwest… (More)

Transient Storage as a Function of Geomorphology , Discharge , and Permafrost Active Layer Conditions in Arctic Tundra Streams

Jay P. Zarnetske, Michael N Gooseff, +4 authors Bowden
2007

[1] Transient storage of solutes in hyporheic zones or other slow-moving stream waters plays an important role in the biogeochemical processes of streams. While numerous studies have reported a wide… (More)

Snow distribution , melt and surface water inputs to the soil in the mountain rain – snow transition zone

http://dx.doi.org/10.1016/j.jhydrol.2014.06.051 0022-1694/ 2014 Elsevier B.V. All rights reserved. Abbreviations: SWI, surface water inputs; ROS, rain on snow; SCA, snow covered area; SWE, snow water… (More)

Spatially distributed temperatures at the base of two mountain snowpacks measured with fiber-optic sensors

Scott W. Tyler, Susan A. BURAK, James P McNamara, A Lamontagne, John S. Selker, Jeff Dozier
2008

Snowpack base temperatures vary during accumulation and diurnally. Their measurement provides insight into physical, biological and chemical processes occurring at the snow/soil interface. Recent… (More)

Modeling the Water and Energy Balance of Vegetated Areas with Snow Accumula on

1013 W in the soil–plant–atmosphere system are important at the local, regional, and global scales. Direct measurement of these fl uxes is generally limited to a few locations and to relatively short… (More)

Measuring thaw depth beneath peat-lined arctic streams using ground-penetrating radar

In arctic streams, depth of thaw beneath the stream channel is likely a significant parameter controlling hyporheic zone hydrology and biogeochemical cycling. As part of an interdisciplinary study of… (More)

Modeling Soil Depth from Topographic and Land Cover Attributes

[1] Soil depth is an important input parameter in hydrological and ecological modeling. Presently, the soil depth data available in national soil databases (STATSGO and SSURGO) from the Natural… (More)

Modeling the isotopic evolution of snowpack and snowmelt: Testing a spatially distributed parsimonious approach

Pertti Ala-Aho, Doerthe Tetzlaff, James P McNamara, Hjalmar Laudon, Patrick Kormos, Chris Soulsby
Water resources research
2017

Use of stable water isotopes has become increasingly popular in quantifying water flow paths and travel times in hydrological systems using tracer-aided modeling. In snow-influenced catchments,… (More)

Application of Time-Lapse ERT Imaging to Watershed Characterization

Carlyle R. Miller, Partha S. Routh, Troy R. Brosten, James P McNamara
2008

Time-lapse electrical resistivity tomography ERT has many practical applications to the study of subsurface properties and processes. When inverting time-lapse ERT data, it is useful to proceed… (More)

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