Sentences with phrase «monsoon weakened»

However, at the start of Bond events, which are smaller and briefer than Heinrich events, the Asian summer monsoon weakened more gradually, taking about 110 years to reach its weakest point.
Some studies suggest that climate change may be one of the reasons that the Asian Summer Monsoon weakened.
Near the end of the green Sahara periods, the intertropical Convergence Zone moved southwards and summer monsoons weakened.
Dongge cave stalagmite D shows at 8.2 kyr the usual Asian monsoon weakening that takes place during periods of low solar activity.

Not exact matches

During this time, rainfall was affected by the African monsoon which strengthened and weakened on a 23,000 year cycle driven by the precession of the equinoxes.
Most El Niños weaken east Asian monsoons, but the Indian monsoon may survive.
If it weakens the Asian monsoons, it will threaten the food supply of billions of people.
Because monsoons result from the temperature differences between land and sea, the yearly monsoon was so weakened that northern Africa and India experienced a devastating drought.
He has created computer simulations indicating that sulfate clouds could potentially weaken the Asian and African summer monsoons, reducing rain that irrigates the food crops of billions of people.
Powerful eruptions can wreak havoc on monsoons by shifting and weakening the Intertropical Convergence Zone, a belt of low pressure near the equator that drives nearby precipitation patterns.
The second of these shows Kotla Dahar becoming completely ephemeral ca. 2200 - 2000 BC as a result of an abrupt weakening of the monsoon, and the weakening of the monsoon is visible in speleothem records in Oman and northeast India.
The weakening monsoons caused further desertification and vegetation loss, promoting a feedback loop which eventually spread over the entirety of the modern Sahara.
It is already affecting weather around the world, from boosting the number of supertyphoons in the Pacific to weakening the Indian monsoon.
Links between monsoon - related events (rainfall over South Asia, rainfall over East Asia, NH circulation, tropical Pacific circulation) weakened between 1890 and 1930 but strengthened during 1930 to 1970 (Kripalani and Kulkarni, 2001).
Sulfurous gases released into the atmosphere impacted monsoon rainfall in the Ethiopian highlands, weakening the rain belt system and, as a result, depleting the flow of water to the river.
Now it's the turn of the Indian Ocean, where pollution from the subcontinent has been wafting over the Bay of Bengal, cooling the sea surface and weakening the annual monsoon.
(2) An argument against sulphate injection geoengineering is that a reduced land ocean temperature gradient during the warm season can weaken monsoons.
So while the monsoon winds might weaken the precipitation nonetheless increases (more bang for the buck) as a weaker circulation carries more water vapor (and latent energy).
Sea level rise in the Indian Ocean increases as monsoon circulation weakens & heat transport decreases.
The dimming by sulfates, nitrates, and carbonaceous (black and organic carbon) species has been shown to disrupt and weaken the monsoon circulation over southern Asia.
The North Atlantic region cooled during this interval with a weakening of Northern Hemisphere monsoon strength.
Participating researchers said, in the course of the study, they had noticed «a strengthening trend of winter rainfall (between 1964 - 2006) and summer rainfall (between 1938 - 2006) and weakening monsoon rain (1960 onwards).
Using eight AOGCMs, Ueda et al. (2006) demonstrate that pronounced warming over the tropics results in a weakening of the Asian summer monsoon circulations in relation to a reduction in the meridional thermal gradients between the Asian continent and adjacent oceans.
The monsoon clouds have weakened in several parts of the region and the variable and erratic rains have left weather forecasters scratching their heads
Greenhouse warming that is stronger over land and in the Northern Hemisphere tends to strengthen the monsoon, but increases in planetary albedo over the continent due to aerosol forcing and / or land - use change tend to weaken it.
Consequently, any perturbation that tends to weaken the driving pressure gradient has the potential to destabilize the monsoon circulation.
Past studies suggest the North American monsoon will weaken in the future.
This, in turn, regionally increased albedo (caused more sunlight to be reflected from the land) and reduced evaporation, which further weakened the monsoon (Stewart, 2010).
He said though the Indian summer monsoon circulation will weaken, rainfall will increase due to higher atmospheric moisture resulting from a rise in temperatures.
Chung, C. & Ramanathan, V. Weakening of N. Indian SST gradients and the monsoon rainfall in India and the Sahel.
As I write, Pakistan is suffering, not from a weakened monsoon, but one supercharged by a stationary blocking high pressure system that created the conditions for devastating floods.
As for the potential impacts of climate change on the monsoon, the report says it is unknown at this point whether this will strengthen or weaken the ability of the monsoon to transport pollutants into the upper atmosphere.
This event is associated with cold and dry conditions increasing with latitude in the North, temperature and precipitation influences on tropical and boreal wetlands, Siberian - like winters in much of the North Atlantic, weakening of monsoon intensity, and southward displacement of tropical rainfall patterns.
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