Recent work has shown that observations of tropical precipitation conform to properties associated with critical phenomena in other systems. Here some of these universal properties are used to probe the physics of tropical convection empirically, providing potential tests for models and parameterizations. The power law pickup of ensemble average precipitation as a function of column water vapor...

The unsteady separated turbulent flow around an oscillating airfoil pitching in a sinusoidal pattern in the regime of low Reynolds number is investigated numerically employing the URANS approach with two advanced turbulence models, namely the RNG kmode and Transition SST model, and the DES approach based on the SST kmodel. A comparison with experimental data shows that the SST kbased D...

FEBRUARY 2002 AMERICAN METEOROLOGICAL SOCIETY | L indzen et al. (2001, hereafter LCH) present observational analysis suggesting that the area coverage of anvil clouds associated with tropical convection is less extensive when sea surface temperatures (SSTs) are higher. This conclusion is based on a negative correlation between the fractional area coverage by high clouds and the average SST unde...

[1] In this study we utilize two organic geochemical proxies, the U37 k′ index and TEX86, to examine past sea surface temperatures (SST) from a site located near the Nile River Delta in the eastern Mediterranean (EM) Sea. The U37 k′ and TEX86 records generally are in agreement and indicate SST ranges of 14°C–26°C and 14°C–28°C, respectively, during the last 27 cal ka. During the Holocene, TEX86...

  In this study, fluid flow and energy separation in a micro-scale Ranque-HilschVortex Tube are numerically investigated. The flow is assumed as 2D, steady,compressible ideal gas, and shear-stress-transport SST k-W is found to be a bestchoice for modeling of turbulence phenomena. The results are in a good agreementwith the experimental results reported in the literature. The results show that f...

FEBRUARY 2002 AMERICAN METEOROLOGICAL SOCIETY | L indzen et al. (2001, hereafter LCH) present observational analysis suggesting that the area coverage of anvil clouds associated with tropical convection is less extensive when sea surface temperatures (SSTs) are higher. This conclusion is based on a negative correlation between the fractional area coverage by high clouds and the average SST unde...

in this study, fluid flow and energy separation in a micro-scale ranque-hilschvortex tube are numerically investigated. the flow is assumed as 2d, steady,compressible ideal gas, and shear-stress-transport sst k-w is found to be a bestchoice for modeling of turbulence phenomena. the results are in a good agreementwith the experimental results reported in the literature. the results show that flu...

[1] We characterize near-surface ocean diurnal warm-layer events, using satellite observations and fields from numerical weather forecasting. The study covers April to September, 2006, over the area 11 W to 17 E and 35 N to 57 N, with 0.1 cells. We use hourly satellite SSTs from which peak amplitudes of diurnal cycles in SST (dSSTs) can be estimated with error 0.3 K. The diurnal excursions of S...