Search Results

You are looking at 31 - 40 of 7,107 items for :

  • Diabatic heating x
  • All content x
Clear All
Mingyu Park and Sukyoung Lee

was found that the SWI tends to be positive 7–10 days after an enhanced warm pool convection, which enhances the zonal asymmetry of the climatological heating field in the tropics. Positive SWI days are typically followed by Arctic warming 8–10 days later. Examining the stationary wave responses to individual forcing terms, presented by Held et al. (2002) , we find that the responses to diabatic heating fields—tropical and extratropical heating individually—exhibit circulation patterns that

Full access
Akira Kasahara, Arthur P. Mizzi, and U. C. Mohanty

2904 MONTHLY WEATHER REVIEW VOLUM-115Comparison of Global Diabatic Heating Rates from FGGE Level IHb Analyses with Satellite Radiation Imagery Data AFo~ KASAHARA AND ARTHUR P.National Center for Atmospheric Research,* Boulder, Colorado 80307 U. C. MOHANTYIndian Institute of Technology, New Delhi, India(Manuscript received 4 November 1986, in final form 11 May

Full access
Peter Siegmund

DECEMBER 1993 S I EG M U N D 2419Cloud Diabatic Forcing of the Atmosphere, Estimated from Simultaneous ECMWF Diabatic Heating and ISCCP Cloud Amount Observations PETER SIEGMUNDRoyal Netherlands Meteorological Institute, De Bilt, the Netherlands(Manuscript received 21 August 1992, in final form 3 May 1993) ABSTRACT The cloud diabafic forcing (CDF) of the

Full access
Gregory S. Elsaesser, Christian D. Kummerow, Tristan S. L’Ecuyer, Yukari N. Takayabu, and Shoichi Shige

priori that regimes contain a mixture of precipitating cloud types and, therefore, individual precipitating clouds are not isolated so as to avoid compositing similar precipitating clouds from different regimes. The role of each cloud type within the precipitation regimes, in terms of their contribution to regime diabatic heating, is also investigated using new satellite-based products. Results are presented that support a stronger idea of precipitation regime self-similarity by considering a regime

Full access
Julian F. Quinting and Michael J. Reeder

upper-level anticyclones are composed. Section 3 aims to answer the following questions: What is a characteristic pathway of air masses that reach these upper-level anticyclones? Is the cross-isentropic transport of anticyclonic PV through diabatic heating important for the formation of heat waves? Where does the cross-isentropic transport occur? Although the analysis in section 3 helps to explain the dynamics of upper-tropospheric anticyclones during southeastern Australian heat waves, it does

Full access
Yuh-Lang Lin

1 OCTOBER 1989 YUH-LANG LIN 3015A Theory of Cyclogenesis Forced by Diabatic Heating. Part I: A Quasi-geostrophic Approach YUH-LANG LINDepartment of Marine, Earth, and Atmospheric Sciences, North Carolina State University, Raleigh, North Carolina(Manuscript received 5 December 1988, in final form 8 May 1989) ABSTRACT A quasi

Full access
Koki Iwao and Masaaki Takahashi

flows ( Fig. 12b ). In addition to this balance, another balance is recognized between the adiabatic heating due to anomalous vertical flows ( Fig. 12c ) and anomalies of the diabatic heating ( Fig. 12d ). Thus, diabatic heating can explain the anomalies of vertical flows in the midtroposphere as shown in Fig. 9 . Using Eq. (4) , we can estimate the sources of the diabatic heating in the column amount, which is obtained by vertical integration from the surface to the 150-hPa level. The results

Full access
Feimin Zhang, Chenghai Wang, and Zhaoxia Pu

al. 2018 ; Shou et al. 2019 ). Most of these previous studies were either based on statistical analysis using datasets from different reanalyses generated by general circulation models (GCMs), synoptic weather maps, and satellite retrievals, or based on numerical simulations using idealized frameworks or coarse model resolutions. It has been recognized that surface diabatic and condensational latent heating, topographical effects of the TP, large-scale circulation such as atmospheric oscillation

Free access
Ben-Da Lin

1206 3OURNAL OF THE ATMOSPHERIC SCIENCES VOLUME39The Behavior of Winter Stationary Planetary Waves Forced by Topography and Diabatic Heating~ BEN-DA LIN2Department of Atmospheric Sciences, University of Washington, Seattle 98195(Manuscript received 13 October 1981, in final form 25 February 1982)ABSTRACT A primitive equation linear wave model is developed to examine the

Full access
Dennis A. Keyser and Donald R. Johnson

SEPTEMBER 1984 DENNIS A. KEYSER AND DONALD R. JOHNSON 1709Effects of Diabatic Heating on the Ageostrophic Circulation of an Upper Tropospheric Jet Streak DENNIS A. KEYSERI AND DONALD R. JOHNSON2Department of Meteorology, The University of Wisconsin-Madison, Madison, WI 53706(Manuscript received 4 March 1983, in final form 29 May 1984) ABSTRACT The interaction between the

Full access