Results 201 to 210 of about 8,682 (251)

DEPARTMENT OF ATMOSPHERIC, OCEANIC AND PLANETARY PHYSICS, UNIVERSITY-OF-OXFORD

, 2016
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Simulation the impact of shifts in Southern Ocean westerlies at LGM on ocean physics and atmospheric CO2

, 2013
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The Infrared Spectrum of Uranus Revealed with JWST

Roman M, Fletcher L, Hammel H, King O, Irwin P, de Pater I, Moses J, Orton G, Rowe-Gurney N, Melin H, Hedman M, Toogood S, Harkett J, Penn J, Milam S.   +14 more
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Sensitivity of a Coupled Ocean–Atmosphere Model to Physical Parameterizations

Journal of Climate, 1994
Abstract The sensitivity of a coupled ocean–atmosphere general circulation model to parameterizations of selected physical processes is studied. The parameterizations include those of longwave radiation and surface turbulent fluxes in the atmospheric model, and those of vertical turbulent mixing and penetration of solar radiation in the ocean model. It
Chung-Chun Ma, Carlos R. Mechoso, Akio Arakawa, John D. Farrara   +3 more
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Biological, Physical, and Atmospheric Controls on the Distribution of Cadmium and Its Isotopes in the Pacific Ocean

Global Biogeochemical Cycles, 2023
AbstractDespite the Pacific being the location of the earliest seawater Cd studies, the processes which control Cd distributions in this region remain incompletely understood, largely due to the sparsity of data. Here, we present dissolved Cd and δ114Cd data from the US GEOTRACES GP15 meridional transect along 152°W from the Alaskan margin to the ...
Matthias Sieber, Nathan T. Lanning, Zachary B. Bunnell, Xiaopeng Bian, Shun‐Chung Yang, Chris M. Marsay, William M. Landing, Clifton S. Buck, Jessica N. Fitzsimmons, Seth G. John, Tim M. Conway   +10 more
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The role of lateral ocean physics in the upper ocean thermal balance of a coupled ocean-atmosphere GCM

Climate Dynamics, 2001
The sensitivity of the upper ocean thermal balance of an ocean-atmosphere coupled GCM to lateral ocean physics is assessed. Three 40-year simulations are performed using horizontal mixing, isopycnal mixing, and isopycnal mixing plus eddy induced advection.
Guilyardi, Éric, Madec, Gurvan, Terray, Laurent   +2 more
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Effects of physical changes in the ocean on the atmospheric pCO2: glacial-interglacial cycles

Climate Dynamics, 2009
Based on LGM experiments with an atmosphere–ocean general circulation model, we systematically investigated the effects of physical changes in the ocean and induced biological effects as well on the low atmospheric CO2 concentration (pCO2) at the last glacial maximum (LGM).
Takasumi Kurahashi-Nakamura, Ayako Abe-Ouchi, Yasuhiro Yamanaka   +2 more
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 Impact of Ocean Physical Conditions on Ocean Carbon Pumps and Atmospheric CO2

During glacial periods, atmospheric CO2 concentrations are known to have been about 90 ppmv lower than during interglacial. However, climate models have not been able to fully reproduce this decrease, partly due to large uncertainties in changes in ocean physical fields. In this study, we evaluate the impact of uncertainties in ocean physical fields on
Miyano Nishida, Akira Oka, Hidetaka Kobayashi   +2 more
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Methods for Observation Data Assimilation in Problems of Physics of Atmosphere and Ocean

Izvestiya, Atmospheric and Oceanic Physics, 2019
This paper presents a review and analysis of approaches to data assimilation in problems of geophysical hydrodynamics, from the simplest sequential assimilation schemes to modern variational methods. Special attention is paid to the study of the problem of variational assimilation in a weak formulation, in particular, to the construction of an ...
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Oxygenation of the Earth's atmosphere–ocean system: A review of physical and chemical sedimentologic responses

Marine and Petroleum Geology, 2012
Abstract The Great Oxidation Event (GOE) is one of the most significant changes in seawater and atmospheric chemistry in Earth history. This rise in oxygen occurred between ca. 2.4 and 2.3 Ga and set the stage for oxidative chemical weathering, wholesale changes in ocean chemistry, and the evolution of multicelluar life.
P.K. Pufahl, E.E. Hiatt
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