Index Catalog // ScholarsArchive@OSU

Paired windward and leeward biogeochemical time series reveal consistent surface ocean CO₂ trends across the Hawaiian Ridge

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

Anomalous transient uplift observed at the Lop Nor, China nuclear test site using satellite radar interferometry time-series analysis

Creator:: Vincent, P., Buckley, S. M., Yang, D., and Carle, S. F.
Abstract:: Anomalous uplift is observed at the Lop Nor, China nuclear test site using ERS satellite SAR data. Using an InSAR time‐series analysis method, we show that an increase in absolute uplift with time is observed between 1997 and 1999. The signal is collocated with past underground nuclear tests. Due to...
Resource Type:: Article
Full Text:: time-series analysis P. Vincent1, S. M. Buckley2, 3, D. Yang2 S. F. Carle4 1College of Earth Ocean

Error spectrum for the global M₂ ocean tide

Creator:: Ray, Richard D., Eanes, R. J., Egbert, Gary D., and Pavlis, N. K.
Abstract:: The most accurate determinations of the global ocean tides are currently based on altimeter measurements made by the Topex/Poseidon satellite. The error spectrum corresponding to the M₂ tidal solution is here estimated, primarily by inverse methods and secondarily by simple differencing in flatter than tidal signal spectrum, and it exceeds...
Resource Type:: Article
Full Text:: amplitude spectrum is [Wahr et al., 1998] (Z aXn n --2 •Nn -- a •Cnm q- rn \m-O (4) 3. Tidal error

Diagnosing a partly standing internal wave in Mamala Bay, Oahu

Creator:: Martini, K. I., Alford, M. H., Nash, Jonathan, Kunze, E., and Merrifield, M. A.
Abstract:: An internal partly standing wave in Mamala Bay, Hawaii is studied using new observations and the Princeton Ocean Model (POM). Previous work suggested a convergence in the bay of east- and westbound waves emanating from Kaena Ridge and Makapuu Point, respectively. New energy flux measurements with shipboard ADCP/CTD confirm that...
Resource Type:: Article
Full Text:: Mamala Bay, Oahu K. I. Martini,1 M. H. Alford,1 J. D. Nash,2 E. Kunze,3 and M. A. Merrifield4 Received

Pacific ventilation of the Artic Ocean's lower halocline by upwelling and diapycnal mixing over the continental margin

Creator:: Woodgate, Rebecca A., Aagaard, Knut, Swift, James H., Falkner, Kelly, and Smethie, William M.
Abstract:: Pacific winter waters, a major source of nutrients and buoyancy to the Arctic Ocean, are thought to ventilate the Arctic's lower halocline either by injection (isopycnal or penetrative) of cold saline shelf waters, or by cooling and freshening Atlantic waters upwelled onto the shelf. Although ventilation at salinity (S) >...
Resource Type:: Article
Full Text:: ,1 James H. Swift,2 Kelly K. Falkner,3 and William M. Smethie Jr.4 Received 6 July 2005; revised 23

Relationship of pore water freshening to accretionary processes in the Cascadia margin: Fluid sources and gas hydrate abundance

Creator:: Torres, Marta E., Teichert, B. M. A., Tréhu, Anne Martine, Borowski, W., and Tomaru, H.
Abstract:: Drilling in the Cascadia accretionary complex enable us to evaluate the contribution of dehydration reactions and gas hydrate dissociation to pore water freshening. The observed freshening with depth and distance from the prism toe is consistent with enhanced conversion of smectite to illite, driven by increase in temperature and age...
Resource Type:: Article
Full Text:: . Teichert,2 A. M. Tréhu,1 W. Borowski,3 and H. Tomaru4,5 Received 6 August 2004; revised 13 September 2004

Connections among ice, runoff and atmospheric forcing in the Beaufort Gyre

Creator:: Macdonald, R. W., Carmack, E. C., McLaughlin, F. A., Falkner, Kelly, and Swift, J. H.
Abstract:: During SHEBA, thin ice and freshening of the Arctic Ocean surface in the Beafort Sea led to speculation that perennial sea ice was disappearing [McPhee et al., 1998]. Since 1987, we have collected salinity, δ¹⁸O and Ba profiles near the initial SHEBA site and, in 1997, we ran a section...
Resource Type:: Article
Full Text:: explaining much of the freshcuing at SHEBA. Ice melt went through a dramatic 4-6 m jump in the ear- ly

Metabolic balance of coastal Antarctic waters revealed by autonomous pCO₂ and ΔO₂/Ar measurements

Creator:: Tortell, Philippe D., Asher, Elizabeth C., Ducklow, Hugh W., Goldman, Johanna A. L., Dacey, John W. H., Grzymski, Joseph J., Young, Jodi N., Kranz, Sven A., Bernard, Kim S., and Morel, François M. M.
Abstract:: We use autonomous gas measurements to examine the metabolic balance (photosynthesis minus respiration) of coastal Antarctic waters during the spring/summer growth season. Our observations capture the development of a massive phytoplankton bloom and reveal striking variability in pCO₂ and biological oxygen saturation (ΔO₂/Ar) resulting from large shifts in community metabolism...
Resource Type:: Article

Long-term explosive degassing and debris flow activity at West Mata submarine volcano

Creator:: Dziak, R. P., Bohnenstiehl, D. R., Baker, E. T., Matsumoto, H., Caplan-Auerbach, J., Embley, R. W., Merle, S. G., Walker, S. L., Lau, T-K., and Chadwick, W. W., Jr.
Abstract:: West Mata is a 1200 m deep submarine volcano where explosive boninite eruptions were observed in 2009. The acoustic signatures from the volcano’s summit eruptive vents Hades and Prometheus were recorded with an in situ (~25 m range) hydrophone during ROV dives in May 2009 and with local (~5 km...
Resource Type:: Article
Full Text:: , A. M. Shaw, D. R. Bohnenstiehl, W. W. Chadwick Jr., J. H. Haxel, H. Matsumoto, and S. L. Walker

DC-8-based observations of aircraft CO, CH₄, N₂O, H₂O(G) emission indices during SUCCESS

Creator:: Vay, S. A., Anderson, B. E., Sachse, G. W., Collins, J. E., Podolske, J. R., Twohy, Cynthia, Gandrud, Bruce W., Chan, K. Rolan, Baughcum, S. L., and Wallio, H. A.
Abstract:: We report the first measurements of CO₂, CH₄, N₂O, CO₂, and H₂O(g) in the exhaust trails of T-39, B-757, and DC-8 aircraft at cruise conditions. Emission indices (El) derived from these in-situ measurements are presented. Results are in agreement with ground-based tests indicating aircraft act as a net sink for...
Resource Type:: Article
Full Text:: . Sachse, 2 J. E. Collins, Jr., 3 J. R. Podolske, 4 C. H. Twohy, -• B. Gandrud, • K. R. Chan, 4 S. L

ScholarsArchive@OSU

Paired windward and leeward biogeochemical time series reveal consistent surface ocean CO₂ trends across the Hawaiian Ridge

Anomalous transient uplift observed at the Lop Nor, China nuclear test site using satellite radar interferometry time-series analysis

Error spectrum for the global M₂ ocean tide

Diagnosing a partly standing internal wave in Mamala Bay, Oahu

Pacific ventilation of the Artic Ocean's lower halocline by upwelling and diapycnal mixing over the continental margin

Relationship of pore water freshening to accretionary processes in the Cascadia margin: Fluid sources and gas hydrate abundance

Connections among ice, runoff and atmospheric forcing in the Beaufort Gyre

Metabolic balance of coastal Antarctic waters revealed by autonomous pCO₂ and ΔO₂/Ar measurements

Long-term explosive degassing and debris flow activity at West Mata submarine volcano

DC-8-based observations of aircraft CO, CH₄, N₂O, H₂O(G) emission indices during SUCCESS

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