Lagged Maximum Covariance Analysis (LMCA) is used to examine the intraseasonal variability of zonal wind, sea surface temperature (SST) and outgoing longwave radiation (OLR) in the Eastern Tropical Paci c Ocean during Northern Hemisphere summertime. Results show the eastward propagation of the Madden Julian Oscillation (MJO) signal at both 850 mb and 200 mb. The 850 mb zonal wind shows a jet-li...

Title of Dissertation: THE EFFECT OF DEEP CONVECTION ON TEMPERATURES IN THE TROPICAL TROPOPAUSE LAYER AND ITS IMPLICATIONS TO THE REGULATION OF TOROPICAL LOWER STRATOSPHERIC HUMIDITY Hyun Cheol Kim, Doctor of Philosophy, 2005 Dissertation directed by: Dr. Andrew E. Dessler Department of Meteorology This dissertation focuses on the impact of deep convection on the thermal structure in the Tropic...

The objective of present research is to examine the thermal radiation effect in three-dimensional mixed convection flow of viscoelastic fluid. The boundary layer analysis has been discussed for flow by an exponentially stretching surface with convective conditions. The resulting partial differential equations are reduced into a system of nonlinear ordinary differential equations using appropria...

In the context of convection-di usion equation, we consider the use of open boundary conditions (also called radiation boundary conditons) in Block GaussSeidel algorithms. Theoretical results and numerical tests show that the convergence is thus accelerated.

The effects of natural convection with and without the interaction of surface radiation in square and rectangular enclosures have been studied, numerically and theoretically. The analyses were carried out over a wide range of enclosure aspect ratios ranging from 0.0625 to 16, including square enclosures in sizes from 40cm to 240cm, with cold wall temperatures ranging from 283 to 373 K, and hot ...

Previous work revealed that bloodsucking bugs can discriminate between oscillating changes in infrared (IR) radiation and air temperature (T) using two types of warm cells located in peg-in-pit sensilla and tapered hairs (Zopf LM, Lazzari CR, Tichy H. J Neurophysiol 111: 1341-1349, 2014). These two stimuli are encoded and discriminated by the response quotient of the two warm cell types. IR rad...

On 10 July 2006, during the Special Observation Period (SOP) of the African Monsoon Multidisciplinary Analysis (AMMA) campaign, a small convective system initiated over Niamey and propagated westward in the vicinity of several instruments activated in the area, including the Massachusetts Institute of Technology (MIT) C-band Doppler radar and the Atmospheric Radiation Measurement (ARM) mobile f...

Two-dimensional numerical study of flow and temperature fields for laminar natural convection and radiation in the inclined cavity is performed in the present work. The walls of the square cavity are assumed kept at constant temperatures. An absorbing, emitting, and scattering gray medium is enclosed by the opaque and diffusely emitting walls. The set of governing equations, including conservat...

this article deals with the study of the two-dimensional mixed convection magnetohydrodynamic (mhd) boundary layer of stagnation-point flow over a stretching vertical plate in porous medium filled with a nanofluid. the model used for the nanofluid incorporates the effects of brownian motion and thermophoresis in the presence of thermal radiation. the skin-friction coefficient, nusselt number an...

In this study, the thermal performance of three kinds of roofs with different heat capacity and thermal conductivity under different external conditions has been investigated using a numerical method. For this purpose, the combined solar radiation, conduction and convection heat transfer were calculated implicitly in terms of a one-dimensional finite difference method. Different high and low so...