The ITCZ is the Intertropical Convergence Zone. There appear to be two meanings: (1) Where the Northern Hemisphere (NH) and Southern Hemisphere (SH) Hadley Cells meet; a line of thunderstorms according to a NOAA site; (2) The caloric equator, the location of maximum insolation.
As various climate influences act, the location of the ITCZ will of course vary. Precession is one of the varying forcings, at least for definition (2). In the following papers and book chapters, the general conclusion appears to be that the ITCZ ought to be in the SH at present: Amazon ITCZ overview: http://www.botany.wisc.edu/courses/botany_430/Hooghiemstra.pdf LGM Atlantic ITCZ simulation: http://www.atmos.washington.edu/~david/chiang.pdf Arabian Sea last 90 ky: http://www.era.lib.ed.ac.uk/bitstream/1842/760/10/10+Chapter+8+Synthesis.pdf But we have this quote "... today the ITCZ maintains a nearly permanent Northern Hemisphere bias." from: http;//www.springerlink.com/index/h3p1736qm55vm080.pdf I suppose this is a global warming effect, but I don't claim to understand it. --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups Global Change ("globalchange") newsgroup. Global Change is a public, moderated venue for discussion of science, technology, economics and policy dimensions of global environmental change. Posts will be admitted to the list if and only if any moderator finds the submission to be constructive and/or interesting, on topic, and not gratuitously rude. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/globalchange -~----------~----~----~----~------~----~------~--~---
