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Shri Ashtapad Maha Tirth - II
climate over longer time scales also influenced the evolution of the world's highest mountain chain, the Himalaya. The climate over much of Asia is dominated by seasonal winds that carry moist air over the Pacific Ocean into East Asia and over the Indian Ocean into South Asia. The East and South Asian monsoons are responsible for most of the rainfall in these regions. Although the time when these monsoon patterns were first established is unknown, many lines of evidence suggest that they first came about at least 24 Ma. While it makes sense intuitively that heavy rainfall should be correlated with more aggressive erosion, it is important to see such direct evidence of the coupling between the processes that define the evolution of mountain ranges and climatic processes. It implies, once again, that Earth is a complex system, and we cannot begin to fully understand mountain building without appreciating the roles of the hydrosphere and atmosphere in the evolution of mountain ranges.
2007 Solar Forcing
Horstman (2005) Dikplati, Toma & Glinan (2006
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Sunspot Number
Bhatt Jain & Aggarwal (2009) -
1700 1710 1720 1730 1740 1750 1760 1770 1780 1790 1800 1810
Clivdrd et al. (bodoh
00 01 02 03 04 05 06 07 08 09 10 11 12 13
Year Monthly Values
- Predicted Values (Smoothed) Smoothed Monthly Values
1800 1810 1820 1830 1840 1850 1860 1870 1880 1890 1900 1910
(http://www.sidec.be, Dec 1, 2009)
The 80 and 200-year sunspot cycle are also Climate cycle: The Wolf-Gleisberg cycle of 80 years influence the earth by stimulating solar forcing so as to vary the global air and ocean temperatures. The 80-year periodicity cycle is marked in a wide range of terrestrial evidence since mllions of years and is still at work. It is found that climatic fluctuations are induced at the turning points of such cycles.
100 €
1900 1910 1920 1930 1940 1950 1960 1970 1980 1990 1900 1910
Fig. 9: The sunspot cycle variation since 1700AD to present (left-side). On the top right-side predictions for the future sunspot maximum year and amplitude are presented. Bottom right-side briefs the relationship between the sunspot activity and the climate cycle on the Earth.
For ninety percent of the last million years, the normal state of the Earth's climate has been an ice age. Ice age last about 100,000 years, and are punctuated by short periods of warm climate, or inter-glacials (cf. Figure 7 and 8). The last ice age started about 114,000 years ago. It began
New Techniques to discover Ashtapad
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