Index Catalog // ScholarsArchive@OSU

Creator:: Haggerty, Roy, Wondzell, Steven M., and Johnson, Matthew A.
Abstract:: We measured the hyporheic residence time distribution in a 2nd-order mountain stream at the H. J. Andrews Experimental Forest, Oregon, and found it to be a power-law over at least 1.5 orders of magnitude in time (1.5 hr to 3.5 d). The residence time distribution has a very long tail...
Resource Type:: Article
Full Text:: University, Corvallis, Oregon, USA Steven M. Wondzell Pacific Northwest Research Station, Olympia Forestry

Creator:: Dore, John E., Church, Matthew J., Karl, David M., Sadler, Daniel W., and Letelier, Ricardo M.
Abstract:: Sustained time series have provided compelling evidence for progressive acidification of the surface oceans through exchange with the growing atmospheric reservoir of carbon dioxide. However, few long-term programs exist, and extrapolation of results from one site to larger oceanic expanses is hampered by the lack of spatial coverage inherent to...
Resource Type:: Article

Creator:: Preston, Daniel L., Caine, Nel, McKnight, Diane M., Williams, Mark W., Hell, Katherina, Miller, Matthew P., Hart, Sarah J., and Johnson, Pieter T. J.
Abstract:: High-elevation aquatic ecosystems are highly vulnerable to climate change, yet relatively few records are available to characterize shifts in ecosystem structure or their underlying mechanisms. Using a long-term data set on seven alpine lakes (3126 to 3620 m) in Colorado, USA, we show that ice-off dates have shifted 7 days earlier over...
Resource Type:: Article

Creator:: Mathis, Jeremy T., Pickart, Robert S., Byrne, Robert H., McNeil, Craig L., Moore, G. W. K., Juranek, Laurie W., Liu, Xuewu, Ma, Jian, Easley, Regina A., Elliot, Matthew M., Cross, Jessica N., Reisdorph, Stacey C., Bahr, Frank, Morison, Jamie, and Lichendorf, Trina
Abstract:: The carbon system of the western Arctic Ocean is undergoing a rapid transition as sea ice extent and thickness decline. These processes are dynamically forcing the region, with unknown consequences for CO2 fluxes and carbonate mineral saturation states, particularly in the coastal regions where sensitive ecosystems are already under threat...
Resource Type:: Article
Full Text:: Rates of phytoplankton primary production over the shelf have been estimated at �6–12 g C m�2 yr�1

Creator:: Abrahamsen, E. Povl, Meredith, Michael P., Falkner, Kelly, Torres-Valdes, Sinhue, Leng, Melanie J., Alkire, Matthew B., Bacon, Sheldon, Laxon, Seymour W., Polyakov, Igor, and Ivanov, Vladimir
Abstract:: We investigate the freshwater composition of the shelf and slope of the Arctic Ocean north of the New Siberian Islands using geochemical tracer data (δ¹⁸O, Ba, and PO₄*) collected following the extreme summer of 2007. We find that the anomalous wind patterns that partly explained the sea ice minimum at...
Resource Type:: Article
Full Text:: Michael P.Meredith,1 Kelly Kenison Falkner,2 Sinhue Torres-Valdes,3 Melanie J. Leng,4 Matthew B. Alkire,2

Creator:: Mote, Philip W., Holton, James R., Russell, James M., and Boville, Byron A.
Abstract:: Recent measurements (21 September - 15 October 1992) of methane and water vapor by the Halogen Occultation Experiment (HALOE) on the Upper Atmosphere Research Satellite (UARS) are compared with model results for the same season from a troposphere-middle atmosphere version of the National Center for Atmospheric Research (NCAR )Community Climate...
Resource Type:: Article
Full Text:: STRATOSPHERIC WATER VAPOR Philip W. Mote 1, James R. Holton 1, James M. Russell III 2, and Byron A. Boville 3

ScholarsArchive@OSU