Deuterium to hydrogen (D/H) ratios in Earth’s hydrologic cycle have long served as important tracers of climate processes, yet the global HDO budget remains poorly constrained because of uncertainties in the isotopic compositions of continental evapotranspiration and runoff. Here bias-corrected satellite retrievals of HDO and H₂O concentrations from the Tropospheric...
With water vapor and clouds expected to effect significant feedbacks on climate, moisture transport through convective processes has important implications for future temperature change. The precipitation efficiency—the ratio of the rates at which precipitation and condensation form (e = P/C)—is useful for characterizing how much boundary layer moisture recycles through precipitation versus...
Continental precipitation not routed to the oceans as runoff returns to the atmosphere
as evapotranspiration. Partitioning this evapotranspiration flux into interception, transpiration,
soil evaporation, and surface water evaporation is difficult using traditional hydrological
methods yet critical for understanding the water cycle and linked ecological processes. We
combined two large-scale flux-partitioning...
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water fluxes
Good, S. P., Noone, D., & Bowen, G. (2015). Hydrologic connectivity constrains
Continental precipitation not routed to the oceans as runoff returns to the atmosphere
as evapotranspiration. Partitioning this evapotranspiration flux into interception, transpiration,
soil evaporation, and surface water evaporation is difficult using traditional hydrological
methods yet critical for understanding the water cycle and linked ecological processes. We
combined two large-scale flux-partitioning...
Full Text:
Fluxes
Stephen P. Good, David Noone, Gabriel Bowen
correspondence to: stephen.good@oregonstate.edu
In 2011, the Institute for Natural Resources – Portland (INR) entered into an agreement with the Natural Resources Conservation Service through the Cooperative Ecosystem Study Unit to assist in evaluation of a targeted watershed restoration area in central Oregon. The primary objective of the agreement was to use remote sensing...
A new matrix operator framework is developed to analyze results from climate modeling studies that employ numerical water tracers (WTs), which track the movement of water in the aerial hydrological cycle from evaporation to precipitation. Model WT output is related to the fundamental equation of hydrology, and the moisture flux...
Pine Creek Conservation Area (PCCA), just northeast of the John Day River in Wheeler County, Oregon, was acquired in 1999-2001 by the Confederate Tribes of Warm Springs with support from the Bonneville Power Administration (BPA), to mitigate for wildlife losses created by the large, hydropower Columbia River Dams, particularly the...
With the recent advent of commercial laser absorption spectrometers, field studies measuring stable isotope ratios of hydrogen and oxygen in water vapor have proliferated. These pioneering analyses have provided invaluable feedback about best strategies for optimizing instrumental accuracy, yet questions still remain about instrument performance and calibration approaches for multi-year...
With the recent advent of commercial laser absorption spectrometers, field studies measuring stable isotope ratios of hydrogen and oxygen in water vapor have proliferated. These pioneering analyses have provided invaluable feedback about best strategies for optimizing instrumental accuracy, yet questions still remain about instrument performance and calibration approaches for multi-year...
This research examines the effect of recent landownership changes and new management stewardship
mechanisms (e.g., forest certification and working forest conservation easements) on disturbance rates in Maine
forests. We quantify forest disturbance rates between 2000 and 2007 and forest cover type composition in 2007,
as detected by Landsat Thematic Mapper...
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% (Noone 2009). The recent
changes in Maine’s forest landscape and ownership patterns require frequent