Feb 1, 2018 · This article challenges the assumption that the seasonal cycle of rainfall in equatorial Africa is controlled by the seasonal excursion of the ITCZ and calls for additional research on the seasonal cycle.

Seasonal variability of the Intertropical Convergence Zone (ITCZ), Congo air boundary (CAB), tropical rainbelt, and surface winds over Africa (adapted from Dezfuli 2017 with modification). This schematic shows that the ITCZ and the region of maximum rainfall can be …

Aug 15, 2003 · A 20-year GCM simulation with the CMT parameterization successfully reproduces the observed seasonal migration of the ITCZ precipitation across the equator with the peaks near 8°N during boreal summer and near 8°S during boreal winter.

Sep 4, 2014 · On seasonal and longer timescales, the ITCZ migrates, typically towards a warming hemisphere but with exceptions, such as during El Niño events. An emerging framework links the ITCZ to the...

Jan 18, 2021 · Here we use projections from 27 state-of-the-art climate models and document a robust zonally varying ITCZ response to the SSP3-7.0 scenario by 2100, with a northward shift over eastern Africa...

Apr 11, 2010 · We investigated the seasonal march of the Intertropical Convergence Zone (ITCZ) shown by the 22 coupled general circulation models of the 20th Century Climate in Coupled Models experiment in seven regions (Africa, Indian Ocean, western Pacific, central Pacific, eastern Pacific, South America, and Atlantic Ocean).

Nov 10, 2020 · Over 1979–2014, the seasonal ITCZ has shifted poleward, narrowed and strengthened in South Pacific; and generally narrowed and strengthened in North Pacific. Under future warming, however, nearly all the seasonal ITCZs …

Jun 1, 2008 · We show that axisymmetric atmospheric dynamics cause a rapid transition from one solstitial circulation to the next. With a two-level, nonlinear model of an axisymmetric atmospheric circulation connected to a slab ocean, we explore the role of angular momentum in the seasonal transition of the ITCZ.

Oct 30, 2020 · After summarizing the dynamical and energetic balances that distinguish an ITCZ from a monsoon, we show that this theoretical framework provides strong support for the migrating convergence zone picture and allows constraints on the circulation to be identified via the momentum and energy budgets.

Mar 3, 2020 · The ITCZ migrates seasonally towards the warming hemisphere, such that location of the ITCZ over the central Atlantic and Pacific oceans varies between 9 \ ( {}^ {\circ }\) N in boreal summer and 2 \ ( {}^ {\circ }\) N in boreal winter, while over the Indian Ocean and nearby land surfaces, the ITCZ migrates abruptly and more dramatically ...