Index Catalog // ScholarsArchive@OSU

Creator:: Shaman, Jeffrey, Samelson, R. M., and Skyllingstad, Eric
Abstract:: The intraseasonal variability of turbulent surface heat fluxes over the Gulf Stream extension and subtropical mode water regions of the North Atlantic, and long-term trends in these fluxes, are explored using NCEP–NCAR reanalysis. Wintertime sensible and latent heat fluxes from these surface waters are characterized by episodic high flux events...
Resource Type:: Article
Full Text:: : Atmospheric Controls and Trends JEFFREY SHAMAN, R. M. SAMELSON, AND ERIC SKYLLINGSTAD College of Oceanic and

Creator:: Shaman, Jeffrey, Samelson, R. M., and Tziperman, Eli
Abstract:: This paper presents a methodology for performing complex wavenumber ray tracing in which both wave trajectory and amplitude are calculated. This ray-tracing framework is first derived using a scaling in which the imaginary wavenumber component is assumed to be much smaller than the real wavenumber component. The approach, based on...
Resource Type:: Article
Full Text:: JEFFREY SHAMAN Department of Environmental Health Sciences, Columbia University, New York, New York R. M

Creator:: Shaman, Jeffrey, Stieglitz, Marc, Stark, Colin, Le Blancq, Sylvie, and Cane, Mark
Abstract:: We modeled surface wetness at high resolution, using a dynamic hydrology model, to predict flood and swamp water mosquito abundances. Historical meteorologic data, as well as topographic, soil, and vegetation data, were used to model surface wetness and identify potential fresh and swamp water breeding habitats in two northern New...
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Full Text:: Abundances in Flood and Swamp Water Jeffrey Shaman, Marc Stieglitz, Colin Stark, Sylvie Le Blancq, and Mark

Creator:: Maloney, Eric D. and Shaman, Jeffrey
Abstract:: Intraseasonal variability of boreal summer rainfall and winds in tropical West Africa and the east Atlantic is examined using daily Tropical Rainfall Measuring Mission (TRMM) precipitation and the NCEP–NCAR reanalysis during 1998–2006. Intraseasonal precipitation variability is dominated by two significant spectral peaks at time scales near 15 and 50 days,...
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Full Text:: Atlantic ITCZ ERIC D. MALONEY AND JEFFREY SHAMAN College of Oceanic and Atmospheric Sciences, Oregon

Creator:: Shaman, Jeffrey and Tziperman, Eli
Abstract:: Numerous studies have demonstrated statistical associations between the El Niño–Southern Oscillation (ENSO) and precipitation in the Mediterranean basin. The dynamical bases for these teleconnections have yet to be fully identified. Here, observational analyses and model simulations are used to show how ENSO variability affects rainfall over southwestern Europe (Iberia, Southern...
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Full Text:: Southwestern European Precipitation JEFFREY SHAMAN College of Oceanic and Atmospheric Sciences, Oregon State

Creator:: Shaman, Jeffrey and Tziperman, Eli
Abstract:: An atmospheric stationary wave teleconnection mechanism is proposed to explain how ENSO may affect the Tibetan Plateau snow depth and thereby the south Asian monsoons. Using statistical analysis, the short available record of satellite estimates of snow depth, and ray tracing, it is shown that wintertime ENSO conditions in the...
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Full Text:: Wave Teleconnection Mechanism and Implications for the South Asian Monsoons JEFFREY SHAMAN Department

Creator:: Shaman, Jeffrey and Tziperman, Eli
Abstract:: Recent findings indicate that ENSO may modulate the strength of the Indian monsoons by altering the meridional tropospheric temperature gradient between Asia and the equatorial Indian Ocean. Here we show that during northern hemisphere summertime El Nino events both colder upper tropospheric temperatures and increased vorticity anomalies are observed within...
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Full Text:: teleconnection and implications for the Indian monsoons Jeffrey Shaman1 and Eli Tziperman2 Received 19

Creator:: Shaman, Jeffrey and Kohn, Melvin
Abstract:: Influenza A incidence peaks during winter in temperate regions. The basis for this pronounced seasonality is not understood, nor is it well documented how influenza A transmission principally occurs. Previous studies indicate that relative humidity (RH) affects both influenza virus transmission (IVT) and influenza virus survival (IVS). Here, we reanalyze...
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Full Text:: , and seasonality Jeffrey Shamana,1 and Melvin Kohnb aCollege of Oceanic and Atmospheric Sciences

Creator:: Shakun, Jeremy D. and Shaman, Jeffrey
Abstract:: The origin of the Pacific Decadal Oscillation (PDO), the leading mode of sea surface temperature variability for the North Pacific, is a matter of considerable debate. One paradigm views the PDO as an independent mode centered in the North Pacific, while another regards it as a largely reddened response to...
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Full Text:: decadal variability Jeremy D. Shakun1 and Jeffrey Shaman2 Received 6 August 2009; revised 1 September

Creator:: Shaman, Jeffrey and Day, Jonathan F.
Abstract:: The frequency of moderate to heavy rainfall events is projected to change in response to global warming. Here we show that these hydrologic changes may have a profound effect on mosquito population dynamics and rates of mosquito-borne disease transmission. We develop a simple model, which treats the mosquito reproductive cycle...
Resource Type:: Article
Full Text:: Populations in Response to Rainfall Frequency Jeffrey Shaman1*, Jonathan F. Day2 1 College of Oceanic and

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