AIRASIA Flight missing , Blame I.T.C.Z

A Malaysian flight missed amid a thunderstorm. So far there is no news of the plane and its passengers and crews.
 At this season the south east of Asia in under influence of severe thunderstorm resulting from Inter-Tropical Convergence Zone.It is said that the pilot asked for deviation from  their regular path to avoid thunderstorms.
The Inter-tropical Convergence Zone, or ITCZ (pronounce itch), is the region that circles the Earth, near the equator, where the trade winds of the Northern and Southern Hemispheres come together.In Asia, countries such as Malaysia, Singapore, Indonesia and Philippine located in this area.The intense sun and warm water of the equator heats the air in the ITCZ, raising its humidity and making it buoyant. Aided by the convergence of the trade winds, the buoyant air rises. As the air rises it expands and cools, releasing the accumulated moisture in an almost perpetual series of thunderstorms.
ITCZ moves to southern hemisphere from September to march. Now it is somewhere around 7 degree south of equator. As a result wind moves from north east to south west and brings lots of moist from Pacific ocean  which collides with winds from southern hemisphere. The result is up warding air and severe shower in short period of time.
The solid bands of clouds may extends for thousands of kilometers and sometimes is broken to smaller segments.
Therefore, up warding  hot, moist winds and down warding cold air which delivering a significant amount of water may be responsible for a natural and human disaster.

Current weather 

Mangrove stopped Tsunami

Ten years ago India plate moved towards Indonesian plate and as a result an earthquake as equal as a 23000 atomic bomb released to neighborhood areas. In a few minutes a big wave was made by earthquake waves which reached as far as south Africa. Tsunami wave reached to 20 to 30 meters in some areas and killed 230,000 people across the region, most of them in Aceh of Indonesia and India and Sri Lanka. But one village escape the Tsunami wave in Thailand. Villagers in Baan Nai Rai survived  the earthquake-driven tsunami - which killed 8,000 in Thailand, on December 26, 2004 - thanks to the protection provided by the dense mangrove forest.

With a population of 700, only one person was killed in the village even though the south of Thailand was one of the hardest hit areas by the killer wave 10 years ago.
Mangroves trees protects the soil and create a natural shelter against Indian ocean waves. Mangroves are still important for villages but danger not only coming from Tsunami, but also those developer who want to destroy mangroves trees to establish a tourist resort and a hotel. If it happens deforestation and soil erosion will destroy the village worse than a Tsunami.

YALDA A night to remember

Winter is coming and autumn is going out.Geographically speaking northern hemisphere will go to its shade more often and southern hemisphere will expose more to sun. Yalde celebrate by Iranians and some other nations as longest night of northern hemisphere which equal to winter solstice (first day of winter). Yalda word comes from Syriac language (a forgotten language in Lebanon  and Syria) which means birth. In first day of winter longest night will happen but since then day length gradually will increase in  a rate of a few minutes every day. So more sun light and thus it is sun's birth. Since earth travel a big curve around Sun, changes in day and night takes a month to be noticeable. While in northern hemisphere experiencing more darkness and northern pole is completely covers by earth shadow (no sunrise for six months), in southern hemisphere longest days are predominated and they have summer (in south pole no sunset for six months). In northern hemisphere days start to increase their length , in southern hemisphere days length shrink. In both hemisphere length of day and night would be equal at first day of spring (spring equinox) for northern hemisphere and first day of fall for southern hemisphere (fall equinox).In northern hemisphere day continue to increase their length until reach to first day of summer which is called summer solstice.Summer solstice in northern hemisphere  equals to first day of winter in southern hemisphere hence winter solstice. All of the above changes happens because of inclination in earth axis.

 Earth axis is an imagery line from north pole to south pole.This line makes almost 23 degree to its perpendicular rotational axis, called axis tilt.Without axis tilt there is no seasons(no temperature exchanges) and length of day and night were equal (very hot every day, no north and south poles).As the year progresses and the earth revolves around the sun, the tilt of the earth’s axis doesn't change. The axis is 23 ½ degrees away from a straight up and down line relative to the sun’s position. This means that for some of the year ( northern hemisphere summer), the North Pole is aimed toward the sun, and some of the year it is aimed away from the sun ( northern hemisphere winter). It is vice versa in the southern hemisphere.

So remember Yalda many geographical astrological changes have happened to make your planet livable and beautifully desirable. 

Summer Solstice Northern hemisphere

Winter solstice Northern hemisphere 

Last temptation of Fall

Winter will arrive  officially very soon. But still some landscapes of Toronto lure us to look again for  more pictures before all disappears.  All pictures are from Riverdale  park east and surrounding
areas.

View from Millwood Rd.  Bridge , East York