Mechanisms for the Global Transmission and Registration of North Atlantic Heinrich Events.-and-nbsp;
S.W. Hostetler, P.U. Clark, P.J. Bartlein, A.C. Mix and N.G. Pisias (1999),
J. Geophysical Research 104(D4):-and-nbsp;3947-3953.

Abstract.-and-nbsp; For the purposes of modeling the sensitivity of the climate system during Heinrich event 2, we employ the concept of a -and-quot;canonical-and-quot; Heinrich event--one that includes elements common to several individual events.-and-nbsp; This canonical event begins with a full-size LIS and cold North Atlantic sea surface temperatures (SSTs), followed by reduction in the height of the LIS, and concluding with warming of North Atlantic SSTs and implied reinvigoration of the THC.-and-nbsp; Our model results show spatially variable Northern Hemisphere responses in temperature and wind fields to each variable and suggest an interhemispheric response through the global water balance.-and-nbsp; In general, the responses to warmer North Atlantic SSTs are greater than those induced by the lowered ice sheet alone; however, in some regions the responses are additive whereas in other regions (such as western North America), the responses to ice and SST elements cancel or are of opposite sign, suggesting that Heinrich event climate variations may have left complex signatures in geologic records.