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.
If
tropical rainfall patterns shift, ecosystems like rainforests could be hugely impacted.
Also, temperature anomalies like those in the figure at the top do influence
tropical rainfall patterns.
Not exact matches
How temporal
patterns in
rainfall determine the geomorphology and carbon fluxes of
tropical peatlands.
The
tropical rain band that encircles Earth just north of the equator affects
rainfall patterns worldwide.
So, a thirsty tree growing in a
tropical forest and one in a temperate forest, such as those we find throughout Europe, will have largely the same response to drought and will inevitably suffer as a result of rising temperatures and changes in
rainfall patterns on Earth.»
The UM Rosenstiel School researchers used historical observations of cloud cover as a proxy for wind velocity in climate models to analyze the Walker circulation, the atmospheric air flow and heat distribution in the tropic Pacific region that affects
patterns of
tropical rainfall.
The findings from researchers at the University of Miami (UM) Rosenstiel School of Marine and Atmospheric Science provide new evidence that climate change in the
tropical Pacific will result in changes in
rainfall patterns in the region and amplify warming near the equator in the future.
Changes in
rainfall patterns that are already being observed in the tropics — a result of forest clearing and climate change — will likely remake Panama's
tropical forests.
However, the study does not exclude the possibility that
tropical rainfall could act to stimulate or strengthen the
pattern.
El Niño — a warming of
tropical Pacific Ocean waters that changes weather
patterns across the globe — causes forests to dry out as
rainfall patterns shift, and the occasional unusually strong «super» El Niños, like the current one, have a bigger effect on CO2 levels in the atmosphere.
The
rainfall patterns reconstructed from the 2009 snail shells have «good consistency with
rainfall,» said Anant Parekh of the Indian Institute of
Tropical Meteorology, Pune, India, who did not participate in the project.
Tropical agriculture in particular is very sensitive to the projected temperature changes and associated changes in
rainfall patterns.
So, a thirsty tree growing in a
tropical forest and one in a temperate forest, such as those we find throughout Europe, will have largely the same response to drought and will inevitably suffer as a result of rising temperatures and changes in
rainfall patterns on Earth.
Euresia Review: How will
rainfall patterns across the
tropical Indian and Pacific regions change in a future warming world?
The regional
patterns of
tropical rainfall diurnal cycles are specified in the Amazon, Mexico, the Caribbean Sea, Calcutta, Bay of Bengal, Malaysia, and northern Australia.
For example, the northern East Asian summer monsoon (NEASM) is, for the years of highest SST anomalies in the
tropical eastern Pacific (TEP), affected by the Pacific - East Asian (PEA) teleconnection
pattern, which consists of a wave creating an anomalously strong western North Pacific (WNP) anticyclonic circulation and anomalously strong cyclonic circulation in the NEASM region, creating more monsoon
rainfall.
Deforestation of
tropical forests in the world's southern hemisphere is threatening world food production by distorting
rainfall patterns across the rest of the globe, a study has indicated.
In addition, the
pattern of sea surface temperatures at low latitudes is extremely important for regional climate variations (shown, for example, by the increased likelihood of heavy winter
rainfall in California when the eastern
tropical Pacific warms in El Niño events).
This eastward moving pulse of anomalous variations in
rainfall, wind, sea surface temperatures, and clouds in the tropics typically recurs every 30 — 60 days, creating a
pattern that profoundly influences global weather and climate systems, including monsoons,
tropical cyclone activity, and El Niño — Southern Oscillation events.
The
rainfall patterns reconstructed from the 2009 snail shells have «good consistency with
rainfall,» said Anant Parekh of the Indian Institute of
Tropical Meteorology, Pune, India, who did not participate in the project.
The reason why Figure 9.1 in IPCC AR4 is disconcerting is that the temperature anomaly in the upper
tropical atmosphere bears the signature of increased moist convective activity, which means that the hydrological cycle probably gets perturbed by increased GHG forcings, hence affecting
rainfall patterns.
The team used newly available NASA satellite observations of
rainfall and vegetation, and a computer model that predicts atmospheric wind flow
patterns, to explore the impact of the Earth's
tropical forests.