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The ITCZ in the Central and Eastern Pacific on Synoptic Time Scales
Publisher: American Meteorological Society
Abstract: The ITCZ in the central and eastern Pacific on synoptic time scales is highly dynamic. The active season extends roughly from May through October. During the active season, the ITCZ continuously breaks down and re-forms, ...
Intertropical Convergence Zones during the Active Season in Daily Data
Publisher: American Meteorological Society
Abstract: Synoptic-scale variability of vorticity structures in the lower troposphere of the tropics is analyzed in 23 yr of daily averaged high-resolution reanalysis data. The vorticity structures can be divided into zonally elongated ...
ITCZ Breakdown in Three-Dimensional Flows
Publisher: American Meteorological Society
Abstract: The intertropical convergence zone (ITCZ) is observed to undulate and at times break down into a series of tropical disturbances in several days. Some of these disturbances may develop into tropical cyclones and move to ...
Climate Effects of Anthropogenic Aerosol Forcing on Tropical Precipitation and Circulations
Publisher: American Meteorological Society
Abstract: ABSTRACTAerosols are one of the key factors influencing the hydrological cycle and radiation balance of the climate system. Although most aerosols deposit near their sources, the induced cooling effect is on a global scale ...
Breakdown and Reformation of the Intertropical Convergence Zone in a Moist Atmosphere
Publisher: American Meteorological Society
Abstract: The effects of moisture on the intertropical convergence zone (ITCZ) over the eastern Pacific on the synoptic time scale are investigated using an intermediate complexity atmospheric circulation model, the quasi-equilibrium ...
Observed and Projected Frontal Activities in East Asia
Publisher: American Meteorological Society
A Bayesian Framework for Storm Tracking Using a Hidden-State Representation
Publisher: American Meteorological Society
Abstract: A probabilistic tracking model is introduced that identifies storm tracks from feature vectors that are extracted from meteorological analysis data. The model assumes that the genesis and lysis times of each track are ...
Processes Leading to Double Intertropical Convergence Zone Bias in CESM1/CAM5
Publisher: American Meteorological Society
Abstract: he double intertropical convergence zone (ITCZ) bias in the eastern Pacific in the Community Earth System Model version 1 with Community Atmosphere Model version 5 (CESM1/CAM5) is diagnosed. In CAM5 standalone, the northern ...
Detecting the ITCZ in Instantaneous Satellite Data using Spatiotemporal Statistical Modeling: ITCZ Climatology in the East Pacific
Publisher: American Meteorological Society
Abstract: A Markov random field (MRF) statistical model is introduced, developed, and validated for detecting the east Pacific intertropical convergence zone in instantaneous satellite data from May through October. The MRF statistical ...