Observed Boundary Layer Wind Structure and Balance in the Hurricane Core....

Journal of the Atmospheric Sciences;  September 1, 2006 ;     700+ words ......horizontal and vertical resolution, and of very...tropical cyclone boundary layer. These data...that above the boundary layer is found to...in the upper boundary layer is not found...tropical cyclone boundary layer model of Kepert...simulate the ...

Linking boundary layer circulations and surface processes during FIFE 89....

Journal of the Atmospheric Sciences;  April 1, 1998 ;     700+ words ......feedback processes, boundary layer structure, and circulations in the boundary layer. The objective...augmented with high vertical resolution radiosonde measurements...an undisturbed boundary layer situation and rainfall...different disturbed boundary ...

The flatland boundary layer experiments

Bulletin of the American Meteorological Society;  March 1, 1998 ;     700+ words ......article describes the 1995 and 1996 Flatland boundary layer experiments, known as Flatland95 and Flatland96...theme of characterization of the convective boundary layer, especially the boundary layer top and entrainment zone. In this article...

Comparisons between Model Forecast and Observed Boundary Layer Profiles...

Weather and Forecasting;  December 1, 2004 ;     700+ words ......mesoscale model boundary layer profiles, and radiosonde...three intensive boundary layer cloud experiments...represent the fine vertical structure seen...estimate for the vertical resolution required to adequately...the evolution of boundary layer cloud. ...

An Approach for Retrieving Marine Boundary Layer Refractivity from GPS...

Journal of Atmospheric and Oceanic Technology;  December 1, 2006 ;     700+ words ......the planetary boundary layer (PBL) and the free...However, the marine boundary layer (MBL, i.e., PBL...surface and the boundary layer have proven very...conditions, their vertical resolution is far too poor for boundary layer characterization...coverage, ...

Boundary layer development over a tropical island during the maritime...

Journal of the Atmospheric Sciences;  August 1, 2001 ;     700+ words ......December 1995) have been used to analyze boundary layer development and circulations over two...every day of the field campaign. The boundary layer depth, temperature, and circulation...measurements. On average, the island boundary layer depth reaches 1.5 km by early to ...

Formulation of turbulent fluxes in the stable boundary layer

Journal of the Atmospheric Sciences;  October 15, 2003 ;     700+ words ......situations. For example, the boundary layer depth is often not definable...numerical models of the stable boundary layer require definition of the boundary layer depth as a fundamental cornerstone...referred to as the upside-down boundary layer by Mahrt (1999) and ...

Mesoscale fluctuations in scalars generated by boundary layer convection

Journal of the Atmospheric Sciences;  March 1, 1999 ;     700+ words ......simulations of the penetrating dry convective boundary layer (microscale convection). The simulated...horizontal size being roughly 16 times the boundary layer depth. It turns out that both the turbulent...originates from a scale of the order of the boundary layer height. ...

The Boundary Layer Winds in Hurricanes Danielle (1998) and Isabel (2003)

Monthly Weather Review;  August 1, 2008 ;     700+ words ......This paper describes the boundary layer wind structure and dynamics...flow by a three-dimensional boundary layer model produced by Kepert...show that the hurricane boundary layer has a complex three-dimensional...

Analysis of mesoscale linear features observed in the Artic atmospheric...

Monthly Weather Review;  September 1, 1996 ;     700+ words ......shallow (z^sub i^ == 150 m) atmospheric boundary layer is documented. These were observed...within and above the arctic atmospheric boundary layer. These aircraft data also exhibit smaller-sca...circulations with scales of 3-8 times the boundary layer depth. Based on analysis of our ...

Convective boundary layer height measurement with wind profilers and...

Journal of Atmospheric and Oceanic Technology;  December 1, 1998 ;     700+ words ...ABSTRACT The depth of the atmospheric boundary layer is of interest in several different...compare several different measurements of boundary layer depth. First, the authors use the standard...humidity gradients to estimate the boundary layer depth. A method for obtaining meaningful...

An observational and numerical study of a sheared, convective boundary...

Journal of the Atmospheric Sciences;  September 1, 1999 ;     700+ words ......of a convective, sheared planetary boundary layer during an afternoon over the High Plains...layer and lowest third of the observed boundary layer were similar to minimally sheared convective...differences in the upper two-thirds of the boundary layer. An overrunning residual ...

Application of a perturbation recycling method in the large-eddy...

Journal of the Atmospheric Sciences;  August 1, 2002 ;     700+ words ......addition to the domain where the internal boundary layer develops, the method requires a section...surface that is of the order of 10 boundary layer thicknesses and thus similar in size to that needed for the LES of the upwind boundary layer. In addition to periodic lateral, closed...

Entrainment, Rayleigh friction, boundary layer winds over the tropical...

Journal of Climate;  January 1, 2002 ;     700+ words ......vertical mixing of momentum into the boundary layer (entrainment)-is very successful in...model (the entrainment rate and the boundary layer depth) are assumed to have uniform...climatology. Such a procedure leads to boundary layer depths between 300 and 400 m and entrainment...

Formation and development of nocturnal boundary layer clouds over the...

Journal of the Atmospheric Sciences;  June 1, 2001 ;     700+ words ......formation and evolution of nocturnal boundary layer clouds over land are studied using a simple wellmixed boundary layer theory. By analyzing the deepening...kinetic energy budget of the whole boundary layer, the authors studied how the formation...