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Benthic oxygen consumption rates during hypoxic conditions on the Oregon continental shelf: Evaluation of the eddy correlation method

Creator:: Reimers, Clare E., Özkan-Haller, H. Tuba, Berg, Peter, Devol, Allan, McCann-Grosvenor, Kristina, and Sanders, Rhea D.
Abstract:: Three stations, at ∼80 m water depth on the Oregon shelf between 44.7°N and 43.9 N, were studied under hypoxic conditions in late spring and summer of 2009 to determine benthic oxygen consumption rates. Oxygen fluxes were derived from eddy correlation (EC) measurements made from an autonomous lander deployed for...
Resource Type:: Article
Full Text:: oxygen consumption rates. Oxygen fluxes were derived from eddy correlation (EC) measurements made from an

Benthic oxygen consumption rates during hypoxic conditions on the Oregon continental shelf: Evaluation of the eddy correlation method

Creator:: Reimers, Clare E., Özkan-Haller, H. Tuba, Berg, Peter, Devol, Allan, McCann-Grosvenor, Kristina, and Sanders, Rhea D.
Abstract:: Three stations, at similar to ~80 m water depth on the Oregon shelf between 44.7 degrees N and 43.9 N, were studied under hypoxic conditions in late spring and summer of 2009 to determine benthic oxygen consumption rates. Oxygen fluxes were derived from eddy correlation (EC) measurements made from an...
Resource Type:: Article
Full Text:: oxygen consumption rates. Oxygen fluxes were derived from eddy correlation (EC) measurements made from an

Evaluation of continental carbon cycle simulations with North American flux tower observations

Creator:: Raczka, Brett M., Davis, Kenneth J., Huntzinger, Deborah, Neilson, Ronald P., Poulter, Benjamin, Richardson, Andrew D., Xiao, Jingfeng, Baker, Ian T., Ciais, Philippe, Keenan, Trevor F., Law, Beverly, Post, Wilfred M., Ricciuto, Daniel, Schaefer, Kevin, Tian, Hanqin, Tomelleri, Enrico, Verbeeck, Hans, and Viovy, Nicolas
Abstract:: Terrestrial biosphere models can help identify physical processes that control carbon dynamics, including land–atmosphere CO₂ fluxes, and have great potential to predict the terrestrial ecosystem response to changing climate. The skill of models that provide continental-scale carbon flux estimates, however, remains largely untested. This paper evaluates the performance of continental-scale...
Resource Type:: Article
Full Text:: flux tower calibrated, empirical models, EC-MOD and MOD17þ, performed as well as the best process-based

Potentials and limitations for estimating daytime ecosystem respiration by combining tower-based remote sensing and carbon flux measurements

Creator:: Hilker, Thomas, Hall, Forrest G., Coops, Nicholas C., Black, Andrew T., Jassal, Rachhpal, Mathys, Amanda, and Grant, Nicholas
Abstract:: Vegetation carbon uptake and respiration constitute the largest carbon cycle of the planet with an annual turnover in the order of 120 GT. Currently, neither ecosystem carbon uptake (through photosynthesis) nor ecosystem carbon release (through respiration) can be measured directly during the daytime. Instead, flux-tower measurements rely on nighttime respiration...
Resource Type:: Article
Full Text:: daytime footprints between EC-flux observations and AMSPEC measurements are similar (Hilker et al., 2008

Leg 202 summary

Creator:: Mix, Alan C., Tiedemann, R., and Blum, P.
Abstract:: More than 7 km of long and relatively continuous sediment sequences from 11 sites in the southeast and equatorial Pacific were recovered during Leg 202 for the study of the Earth’s climate and biogeochemical systems on scales that range from tectonic (millions of years) to orbital (tens to hundreds of...
Resource Type:: Article

Inter-laboratory Validation of Bioaccessibility Testing for Metals

Creator:: Henderson, Rayetta G., Verougstraete, Violaine, Anderson, Kim, Arbildua, José J., Brock, Thomas O., Brouwers, Tony, Cappellini, Danielle, Delbeke, Katrien, Herting, Gunilla, Hixon, Greg, Odnevall Wallinder, Inger, Rodriguez, Patricio H., Van Assche, Frank, Wilrich, Peter, and Oller, Adriana R.
Abstract:: Bioelution assays are fast, simple alternatives to in vivo testing. In this study, the intra- and inter-laboratory variability in bioaccessibility data generated by bioelution tests were evaluated in synthetic fluids relevant to oral, inhalation, and dermal exposure. Using one defined protocol, five laboratories measured metal release from cobalt oxide, cobalt...
Resource Type:: Article
Full Text:: (REACH) Regulation in 6 Europe (EU) (Regulation (EC) No 1907/2006, 2006) necessitates the generation of

Comparing streambed light availability and canopy cover in streams with old-growth versus early-mature riparian forests in western Oregon

Creator:: Warren, Dana R., Keeton, William S., Bechtold, Heather A., and Rosi-Marshall, Emma J.
Abstract:: Light availability strongly influences stream primary production, water temperatures and resource availability at the base of stream food webs. In headwater streams, light is regulated primarily by the riparian forest, but few studies have evaluated the influence of riparian forest stand age and associated structural differences on light availability. In...
Resource Type:: Article
Full Text:: Sciences 49 (3):540-425 551 426 Boston HL, Hill WR (1991) Photosynthesis light relations of stream

Seasonal hydrology explains interannual and seasonal variation in carbon and water exchange in a semiarid mature ponderosa pine forest in central Oregon

Creator:: Thomas, Christoph, Law, Beverly E., Irvine, James, Martin, Jonathan, Pettijohn, J. Cory, and Davis, Kent J.
Abstract:: We analyzed 7 years (2002–2008) of micrometeorological and concurrent biological observations of carbon and water fluxes at a mature ponderosa pine forest in central Oregon in a semiarid climate. We sought to evaluate the extent that gross primary productivity, net ecosystem exchange, ecosystem respiration, net primary productivity, net ecosystem productivity,...
Resource Type:: Article
Full Text:: (2006 onward) at 33 m agl on the main meteorological tower using the eddy covariance (EC) technique. In

Climate Divisions for Alaska Based on Objective Methods

Creator:: Bieniek, Peter A., Bhatt, Uma S., Thoman, Richard L., Angeloff, Heather, Partain, James, Papineau, John, Fritsch, Frederick, Holloway, Eric, Walsh, John E., Daly, Christopher, Shulski, Martha, Hufford, Gary, Hill, David F., Calos, Stavros, and Gens, Rudiger
Abstract:: Alaska encompasses several climate types because of its vast size, high-latitude location, proximity to oceans, and complex topography. There is a great need to understand how climate varies regionally for climatic research and forecasting applications. Although climate-type zones have been established for Alaska on the basis of seasonal climatological mean...
Resource Type:: Article
Full Text:: Global Summary of the Day (GSOD) database at NCDC, Environment Canada (EC), the Alaska Climate Research

Stream biomonitoring using macroinvertebrates around the globe: a comparison of large-scale programs

Creator:: Buss, Daniel F., Carlisle, Daren M., Chon, Tae-Soo, Culp, Joseph, Harding, Jon S., Keizer-Vlek, Hanneke E., Robinson, Wayne A., Strachan, Stephanie, Thirion, Christa, and Hughes, Robert M.
Abstract:: Water quality agencies and scientists are increasingly adopting standardized sampling methodologies because of the challenges associated with interpreting data derived from dissimilar protocols. Here, we compare 13 protocols for monitoring streams from different regions and countries around the globe. Despite the spatially diverse range of countries assessed, many aspects of...
Resource Type:: Article
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ScholarsArchive@OSU

Benthic oxygen consumption rates during hypoxic conditions on the Oregon continental shelf: Evaluation of the eddy correlation method

Benthic oxygen consumption rates during hypoxic conditions on the Oregon continental shelf: Evaluation of the eddy correlation method

Evaluation of continental carbon cycle simulations with North American flux tower observations

Potentials and limitations for estimating daytime ecosystem respiration by combining tower-based remote sensing and carbon flux measurements

Leg 202 summary

Inter-laboratory Validation of Bioaccessibility Testing for Metals

Comparing streambed light availability and canopy cover in streams with old-growth versus early-mature riparian forests in western Oregon

Seasonal hydrology explains interannual and seasonal variation in carbon and water exchange in a semiarid mature ponderosa pine forest in central Oregon

Climate Divisions for Alaska Based on Objective Methods

Stream biomonitoring using macroinvertebrates around the globe: a comparison of large-scale programs

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