Learn About the Weather,
Don't Just Read the Reports
 |
The more you know about
the weather, the better
prepared you'll be out there. |
|
|
WEATHER INFORMATION - ABOUT FRONTS
Read about weather fronts and more, to
help you understand what's going on outside around you.
|
There are three types of weather
fronts:
A cold front is cold air moving into
an area of warm air.
The cold air pushes under the warm air forcing the warm
air to rise. The warm air then condenses producing rain.
An occluded front
is were two fronts, a warm and a cold meet. If the cold front cuts under the
warm front it is known as a cold occlusion. If the cold front rises over
the warm one it is known as a warm occlusion. Both types of occluded
fronts can bring rain.
|
|
Global Air masses
Globally there are very large areas of high and low pressures. The form bands
around the Earth that are parrellel with
the line of latitude.
At the equator (0 ) there is a low pressure band with two
more, one near the Artic (60 North) and one
near the antartic (60 South).
Between the low pressure lie high pressure belts
one at 30 North and one at 30 South, just
north and south of the tropical latitudes.
As air moves from high to low pressures it produces the global prevailing winds,
known as trade winds. The trade winds
are strongest
between the high and low pressures with wind speeds relatively low
at the pressure belts. The trade winds
do not blow in a straght line
towards the poles as they are blown of course by
the spinnig of the Earth. In the northern
hemisphere the winds are blown to the right
and to the left in the southern
hemisphere. Therefore making prevailng
winds mainly south westerly in the North.
RESERVOIR FISHING?
JUST SAY "BOOYAH"!
Finally, a
jig made to penetrate
the brush piles or drop through the grass beds with equal
efficiency. this jig
features a flat bottom 28 degree rise, Mustad® Ultra Point™ premium
black nickel hook, heavy weed guard, 2 magnum rattles, and a full
body 50-strand Bio-Flex®
silicone skirt
SEE MORE |
|
The Hadley cell carries heat and moisture from the tropics
to the northern and southern mid-latitudes.
|
 |
Thanks to
wikibooks
for this great weather information |
|
What Are Hadley Cells?
The low pressure area at the equator
is the driving force for the whole current system
of the Earth. As warm air
rises at this low pressure area it cools and condenses forming clouds and
precipitation. The low pressure then takes cold air from the north and south
to
replace the rising air. This cold air is then itself heated pushing the now dry
warm air further north and south. This dry air starts to sink back to Earth at
the tropics creating the High Pressure areas. This falling dry air makes the
areas havea much drier climate forming deserts and savannahs. This dry air is
then sucked back towards the equator where the process is repeated. The areas
where this cycles of winds happen is known
as the Hadley Cells. |
|
Beijing Anomaly
Scientists scanning the deep interior of Earth have found evidence of a vast
water
reservoir beneath eastern Asia that is at least the volume of the Arctic
Ocean.
The left figure is a slice through the Earth, taken from the figure on the
right, showing the attenuation anomalies within the mantle at a depth of roughly
620 miles. In both images, red shows unusually soft and weak rock believed to be
saturated with water, and the blue shows unusually stiff rock (yellow and white
show near-average values). |
|
|
