Why are these people wading through the water?

Why are these crops so plentiful?

Barker A2 Textbook P56 Copy the 4 diagrams showing the seasonal movement of the ITCZ (Or you can do this on the A3 sheet) Read P58-59 on the Monsoon Season

Chittagong - Bangladesh

Sdsssssssssssssssss Mangalore (South West) New Delhi (North)

http://www.youtube.com/watch?v=pe1p-XcGdC4

Persistent Circulation Patterns NH winter Sea level pressure and prevailing winds 8

Persistent Circulation Patterns NH winter > subtropical highs Sea level pressure and prevailing winds 9

Persistent Circulation Patterns NH winter > 2 major subpolar lows: near polar front, storm track Sea level pressure and prevailing winds 10

Persistent Circulation Patterns NH winter > subpolar highs: shallow, thermally induced Sea level pressure and prevailing winds 11

Persistent Circulation Patterns NH winter > subpolar trough in SH: high winds and seas, roaring 40s Sea level pressure and prevailing winds 12

Persistent Circulation Patterns NH winter > ITCZ displaced south Sea level pressure and prevailing winds 13

Persistent Circulation Patterns NH summer > ITCZ displaced north Sea level pressure and prevailing winds 14

Persistent Circulation Patterns NH summer > Subtropical highs move north Sea level pressure and prevailing winds 15

Persistent Circulation Patterns NH summer > Thermal lows develop over land Sea level pressure and prevailing winds 16

Persistent Circulation Patterns NH summer > Weak Icelandic Low remains, Aleutian Low disappears Sea level pressure and prevailing winds 17

Persistent Circulation Patterns NH summer > Asian Monsoon season Sea level pressure and prevailing winds 18

Seasonal Circulation Patterns winter summer Subpolar lows disappear Subtropical highs remain Zone of max heating shifts north Weak equator - pole temp gradient Strong thermal imbalance Strong pressure gradient Strong winds Strong equator - pole temp gradient Thermal Imbalance is the Driver Sea level pressure and prevailing winds 19

The Monsoon

Seasonal Circulation Animation H Sea level pressure and winds University of Oregon Thermal Imbalance is the Driver 21

January (N.Hem Winter) ITCZ moves South due to the earth tilting the South towards the sun, making the hottest point South of the equator

July (N.Hem Summer) ITCZ moves North of the equator due to Earth tilt

http://www.classzone.com/books/earth_science/terc/content/visualizations/es2402/es2402page01.cfm?chapter_no=visualization

http://www.cbsnews.com/video/watch/?id=712201n http://www.youtube.com/watch?v=uFilBJsu224

Kolcatta India

Monsoon Good? NEW DELHI: India's south-west monsoon is likely to be normal for the second straight year in 2011, weather officials said on Monday, raising hopes of higher farm output that could help the government tame high food prices. The monsoon acts as a lifeline for India's farm-dependent economy, which is also the world's leading producer and consumer of several key commodities such as sugar, grains, oilseeds and cooking oils. "There is no abnormal global signals in the weather system to hint that there could be a drought this year," D. Sivananda Pai, director at the state-run National Climate Center, told Reuters. Pai said a La Nina weather pattern, which causes heavier-than-normal rains in South Asia, still prevails over 25 percent of the country and is expected to remain active till May, just before the start of the June-Spetember monsoon season.

Another senior official said weather models of the Indian weather office ruled out chances of occurrence of El Nino that causes drought conditions in the Indian sub-continent. "Our statistical models do not forecast a bad monsoon for 2011," the government official said without wanting to be named. India's main weather office will come out with its first forecast on this year's monsoon season in April with periodic reviews as the four-month season progresses. The government in Asia's third-largest economy is struggling to control double-digit food inflation, among the highest in the region, and a good monsoon is seen as crucial for higher farm output needed to cool prices. Prime Minister Manmohan Singh, whose Congress party faces several important state elections this year, has said fighting inflation is a priority and last month's federal budget has spelt out steps to help boost farm output.

Monsoon Bad? In July and August 2010, abnormally heavy monsoon floods hit the Indus River in Pakistan, causing unprecedented damage. The floods deluged a fifth of the country, affecting 21 million people and destroying homes, farmland, health clinics, power stations, schools, roads and water-supply systems. The scale and damage of the floods is greater than that of the Asian Tsunami, the Kashmir earthquake and the Haiti earthquake combined.  

Six months later, on January 31, the Pakistan Federal Government called an official end to relief operations. But the disaster is far from over. Millions continue to need humanitarian aid, with deeper effects to come. Many areas – mainly houses and agricultural land – remain under water or cut off. Over one million people (and probably many more uncounted) are still homeless, with no adequate shelter for the winter. In southern Pakistan, malnutrition rates, already critical before the flood, now rival those of African countries affected by famine, UNICEF estimates  

Half-Term homework Read the article on Monsoons Complete this essay Discuss the impacts of storm events in the British Isles and evaluate the responses to them. (40 marks)