Search Results

You are looking at 1 - 10 of 28 items for :

  • Thermocline circulation x
  • Journal of Applied Meteorology and Climatology x
  • All content x
Clear All
S. G. H. Philander

Southern Oscillation (Hirst1988). One type of mode corresponds to westwardtraveling waves in which, at a fixed point, the zonalwinds lead the sea surface temperature anomalies inphase. In this mode the atmospheric response to a warmsea surface temperature anomaly includes wester!9winds that have a maximum to the west of the temperature anomaly. These winds induce convergentoceanic motion at the equator, downwelling, a deepened thermocline, and hence higher sea surface temperatures. Therefore, the winds

Full access
Jerome Namias

anomalies at 700 mb. Washington, D. C., ESSA Tech. Rept. WB10, 103 pp.Petterssen, S., 1956: Weather Analysis and Forecasting, Vol. 1. New York, McGraw-Hill, 428 pp.Robinson, M. K., and R. A. Bauer, 1971: Atlas of Monthly Mean Sea Surface and Subsurface Temperature and Depth of the Top of the Thermocline North ?acific Ocean. Monterey, Calif., Fleet Numerical Weather Central, 96 pp.Stidd, C. K., 1954: The use of correlation fields in relating pre cipitation to circulation. J. Meteor., 11, 202

Full access
Mark R. Jury

River daily flow with case study indicated by an arrow. (c) GFS air pressure map on 1 Jul 2012 with yellow shading for aerosol optical depth > 0.35 during June–July 2012. The central Caribbean lies within the North American Mesoscale (NAM; Michalakes et al. 2005 ) model domain and has a dense network of observations for assimilation to a 12-km grid. This has made it possible to study local diurnal circulations and convection ( Jury et al. 2009 ; Jury and Chiao 2012 ). Whereas these earlier studies

Full access
Albert J. Semtner Jr.

-layer thickness is added in thesecond coupled model. The third coupled model is one in which three-dimensional ocean circulation is included,using a relatively fine oceanic grid (1.5°). Long integrations of the three coupled models are carried out inorder to understand their intrinsic dynamics.The first coupled model exhibits many aspects of the seasonally varying atmospheric circulation, such asstrong unstable wintertime westerlies, a summertime intertropical convergence zone at latitude 12°, and a

Full access
C. S. Ramage

pressure began to rise. Thus, it appearsas if upper- and lower-tropospheric convergence sud- 9so s0denly dissipated Iris. By the 8th, nothing remained ofthe circulation. The satellite picture for 0743 of 80c- 940tober is shown in Fig. 5. Conditions in October over the South China Seaoften resemble hurricane season conditions over theCaribbean, in which ~ semi-permanent northeastsouthwest trough (cyclonic shear line) in the uppertroposphere affects tropical disturbances (Simpson andSugg, 1970; Dunn

Full access
Walter A. Lyons

cloudiness and the direction of the gradient flow with respect to the shoreline.1. Introduction The land and sea breeze are perhaps the mostfamiliar local meteorological event to residents of acoastal region. These local circulations are not restrictedto ocean shorelines however. Lakes even as small as1 mi across under ideal conditions can produce detectable wind patterns (Plank, 1965). The lake breeze, which generally achieves an intensitycomparable to the oceanic sea breeze at mid

Full access
Edward B. Rodgers, Robert F. Adler, and Harold F. Pierce

Introduction The main driving force of the time-averaged planetary-scale motions of the earth’s atmosphere is provided by quasi-stationary heat sources generated by the combination of latent heat release (LHR) and radiative processes, in which LHR is the larger. Therefore, the knowledge of the spatial and temporal variation of rainfall is fundamental in understanding and modeling the anomalies of the general atmospheric circulation ( Huffman et al. 1997 ; Berg and Avery 1994 ; Wang 1994

Full access
Steven R. Hanna

-p'ing (1963) has observed longitudinaldunes aligned with the prevailing wind and havingspacings of -'-0.3-2 km.The largest mountain-valley circulation in the worldmay be observed in the huge Takla-Makan basin inCentral Asia, according to Fedorivich (1948). Nearlysurrounded by high mountains, this desert heats upduring the daytime and acts as the center of a largeconvection cell. During the night cold air drainage fromthe mountains occurs. As a result of the convergence ofwinds, the dunes all appear to be

Full access
Xiaoyan Zhang, Jianping Huang, Gang Li, Yongwei Wang, Cheng Liu, Kaihui Zhao, Xinyu Tao, Xiao-Ming Hu, and Xuhui Lee

1. Introduction Lake breezes, which are local circulations driven by the thermal contrast between lake and nearby land, are often observed near lakeshores under clear and calm weather conditions with strong solar radiation ( Lyons 1972 ; Sills et al. 2011 ). Lake breezes may pose an important constraint on local weather and air quality in the lakeshore areas where population density is often highest ( Rao et al. 2008 ; Gronewold et al. 2013 ). Usually convective activities are suppressed near

Full access
Alan E. Strong

598 JOURNAL OF APPLIED METEOROLOGY VOLUME 11The Influence of a Great Lake Anticyclone on the Atmospheric Circulation~.~' ALAN E. STRONGEnvironmental Sdences Group, National Environmental Satellit~ Sendce, NOAA, Washington, D. C. 20031 (Manuscript received 6 December 1971) An air-water interaction study was pedormed near Waukegan, Ill., to determine the effect

Full access