ESS101C
Prof.
Jin-Yi Yu
Monsoon and Methane
qOn the 23,000-year cycle, methane variations closely resemble the variations of monsoon strength.
qThe peak
values of methane match the expected peaks in monsoon intensity not only in timing but also in amplitude.
qThis match suggests a close connection between CH4 concentrations and the monsoon on the 23,000-year climate cycle.
qBy why?
Modern interglacial period
Last interglacial period
(from Earth’s Climate: Past and Future)