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RISLagrangian Study of Cloud Properties and Their Relationships to Meteorological Parameters over the U.S. Southern Great Plains
Publisher: American Meteorological Society
Abstract: Hourly satellite cloud data from 18 June to 18 July 1997 over the U.S. southern Great Plains are analyzed to study the scale-dependent cloud properties and their relationships to atmospheric conditions. The observed clouds ...
Untitled
Publisher: American Meteorological Society
Abstract: AbstractDuring boreal spring, observations show a double ITCZ over the eastern Pacific, with the northern ITCZ stronger than the southern ITCZ. However, it is opposite in most climate models. It is also evident that there ...
Improving Trigger Functions for Convective Parameterization Schemes Using GOAmazon Observations
Publisher: American Meteorological Society
Abstract: AbstractUsing observations from the Green Ocean Amazon (GOAmazon) field campaign, this study aims to improve trigger functions of convection schemes. Results show that the CAPE generation rate (dCAPE)-type triggers are the ...
Untitled
Publisher: American Meteorological Society
Abstract: AbstractObservational studies suggest that the vertical structure of diabatic heating is important to MJO development. In particular, the lack of a top-heavy heating profile was believed to be responsible for poor MJO ...
Convection Parameterization, Tropical Pacific Double ITCZ, and Upper-Ocean Biases in the NCAR CCSM3. Part II: Coupled Feedback and the Role of Ocean Heat Transport
Publisher: American Meteorological Society
Abstract: This study investigates the coupled atmosphere?ocean feedback and the role of ocean dynamic heat transport in the formation of double ITCZ over the tropical Pacific in the NCAR Community Climate System Model, version 3 ...
Evaluation of Trigger Functions for Convective Parameterization Schemes Using Observations
Publisher: American Meteorological Society
Abstract: ealistic simulation of different modes of atmospheric variability ranging from diurnal cycle to interannual variation in global climate models (GCMs) depends crucially on the convection trigger criteria. In this study, ...
Role of Climate Feedback in El Niño–Like SST Response to Global Warming
Publisher: American Meteorological Society
Abstract: nder global warming from the doubling of CO2, the equatorial Pacific experiences an El Niño?like warming, as simulated by most global climate models. A new climate feedback and response analysis method (CFRAM) is applied ...
Simulation of the Madden–Julian Oscillation in the NCAR CCM3 Using a Revised Zhang–McFarlane Convection Parameterization Scheme
Publisher: American Meteorological Society
Abstract: This study presents the simulation of the Madden?Julian oscillation (MJO) in the NCAR CCM3 using a modified Zhang?McFarlane convection parameterization scheme. It is shown that, with the modified scheme, the intraseasonal ...
Improving the Simulation of Tropical Convective Cloud-Top Heights in CAM5 with CloudSat Observations
Publisher: American Meteorological Society
Abstract: AbstractUsing 4 years of CloudSat data, the simulation of tropical convective cloud-top heights (CCTH) above 6 km simulated by the convection scheme in the Community Atmosphere Model, version 5 (CAM5), is evaluated. Compared ...
Evaluation of the Quasi-Biweekly Oscillation over the South China Sea in Early and Late Summer in CAM5
Publisher: American Meteorological Society
Abstract: Low-frequency intraseasonal oscillations in the tropical atmosphere in general circulation models (GCMs) were studied extensively in many previous studies. However, the simulation of the quasi-biweekly oscillation (QBWO), ...