L.W.(=?iso-8859-1?Q?=DFill?=) Hughes III

But not the Jet Streams that govern out whether:
http://squall.sfsu.edu/crws/jetstream.html
God Bless America, ßill O|||||||O
mailto:-------------------- http://www.----------.com/

Dave Milne wrote:
>
> Yes, you are correct for cyclones and hurricanes, but the trade winds cross
> the equator !
>
> Dave Milne, Scotland
> '91 Grand Wagoneer, '99 TJ

L.W.(=?iso-8859-1?Q?=DFill?=) Hughes III

But not the Jet Streams that govern out whether:
http://squall.sfsu.edu/crws/jetstream.html
God Bless America, ßill O|||||||O
mailto:-------------------- http://www.----------.com/

Dave Milne wrote:
>
> Yes, you are correct for cyclones and hurricanes, but the trade winds cross
> the equator !
>
> Dave Milne, Scotland
> '91 Grand Wagoneer, '99 TJ

L.W.(=?iso-8859-1?Q?=DFill?=) Hughes III

But not the Jet Streams that govern out whether:
http://squall.sfsu.edu/crws/jetstream.html
God Bless America, ßill O|||||||O
mailto:-------------------- http://www.----------.com/

Dave Milne wrote:
>
> Yes, you are correct for cyclones and hurricanes, but the trade winds cross
> the equator !
>
> Dave Milne, Scotland
> '91 Grand Wagoneer, '99 TJ

L.W.(=?iso-8859-1?Q?=DFill?=) Hughes III

When they coined the phrase, "you may lead a horse to water, but
you can't make it drink" they ere thinking of you!

Section 19.4Air Motion

The gravitational pull of Earth acts downward on
molecules in the air, causing the
density of air to increase as you descend into the
atmosphere and to reach a
maximum near Earth's surface. It is, however,
pressure differences due to
temperature variations across the surface of Earth
that cause horizontal air
movements. When encountering the unbalanced forces
produced by these pressure
differences, air always moves from a high-pressure
region to a low-pressure one.

Localized heating of Earth's surface gives rise to
convection cycles. These occur
because heated air expands and rises, allowing
cooler air to flow in horizontally to
take its place. The convection cycles set up in
this way are often referred to as
thermal circulation. The horizontally moving air,
or wind, is acted on by
speed-dependent forces such as friction and the
Coriolis force. The Coriolis force is
the result of the rotation of Earth beneath the
moving air, which causes it to appear to
be deflected as it moves. Friction also causes
deflection and retardation of moving
air. As air flows outward from a high-pressure
region in the Northern Hemisphere, it is
deflected into clockwise rotation around the high
by the Coriolis force. Air moving
toward a low-pressure region is deflected into
counterclockwise rotation around the
low. Counterclockwise rotation around a
low-pressure cell is called a cyclone, and
clockwise rotation around a high is referred to as
an anticyclone. These rotational
patterns are reversed in the Southern Hemisphere.

Horizontal air movement is referred to as wind.
The speed of moving air determines
the strength of the wind. Wind speed is usually
measured in miles per hour or
kilometers per hour. Wind direction is determined
by the direction from which the
wind is blowing. For example, an east wind blows
from east to west. The speed of
the wind is measured with a device called an
anemometer, and the direction of the
wind is indicated by a wind vane.

Local heating and cooling often produce localized
air movement. For example, when
the ground is heated during the day, the air above
it rises, and cool air flows in to
replace the rising warm air. This often occurs
near large bodies of water, and the
resulting wind is called a sea breeze because the
surface wind moves from the water
toward the land. At night when the land cools off
more rapidly than the adjacent
water, the process is reversed and a land breeze
is likely to occur. Other winds such
as those associated with a monsoon occur because
of similar localized heating of
Earth's surface, although they are usually on a
much larger scale.

The overall global circulation patterns are driven
by differential heating that
establishes basic north-south wind movement. Three
basic north-south circulation
patterns are set up in the Northern Hemisphere and
three more in the Southern
Hemisphere. (See Fig. 19.21 in the textbook.) The
Coriolis force tends to turn these
wind patterns as they move across Earth's surface.
The results are six general
regions of air circulation, three north of the
equator and three south of the equator.

In the Northern Hemisphere the northeast trade
winds are the first of these regions
encountered. They blow primarily from the
northeast, producing generally regular and
steady winds between the equator and approximately
30° N. Between 30° N and 60°
N the pattern changes and is referred to as the
westerlies because of the prevailing
direction of air movement out of the west. North
of 60° the polar easterlies blow
predominantly from the northeast. In the Southern
Hemisphere these patterns are
reversed. (See Fig. 19.21 in the textbook.)
General wind patterns are responsible to a
large extent for the climate in many parts of the
world, and they also determined the
trade and exploration routes used by early
seafaring adventurers.

Prevailing wind patterns also exist in the upper
atmosphere that greatly affect the
climate and the severity of seasonal weather
conditions. These fast-moving rivers of
air are known as the jet streams. They are the
result of pressure differences where
great high-pressure and low-pressure areas meet.
It is probable that jet streams also
influence the formation of tornadoes and other
severe atmospheric storms.
--
God Bless America, ßill O|||||||O
mailto:-------------------- http://www.----------.com/


Stephen Cowell wrote:
>
> Bill, you're starting to look foolish (starting?)... the
> atmosphere mixes, your link never denied that, it even
> says that the atmosphere is remarkably consistant:
>
> http://college.hmco.com/physicalscie...udygoals/ch19/
>
> "Our atmosphere is quite complex, yet its composition remains surprisingly
> consistent. By volume, 99% is made up of only two common gases, nitrogen
> (78%) and oxygen (21%). The remaining 1% is primarily argon and carbon
> dioxide, together with very small traces of several other gases. "
>
> We all know that wind can blow across the Equator...
> at least, most of us know this. Do you deny this?
> How about the solar radiation, moving from North
> to South each year due to the seasons? This creates
> high/low pressure zones above and below the
> geographic Equator... air is exchanged.
>
> You can't find a cite that tells me air is not
> exchanged between hemispheres... but you
> are welcome to try... : )
> __
> Steve
> .
>
> __
> Steve
> .

L.W.(=?iso-8859-1?Q?=DFill?=) Hughes III

When they coined the phrase, "you may lead a horse to water, but
you can't make it drink" they ere thinking of you!

Section 19.4Air Motion

The gravitational pull of Earth acts downward on
molecules in the air, causing the
density of air to increase as you descend into the
atmosphere and to reach a
maximum near Earth's surface. It is, however,
pressure differences due to
temperature variations across the surface of Earth
that cause horizontal air
movements. When encountering the unbalanced forces
produced by these pressure
differences, air always moves from a high-pressure
region to a low-pressure one.

Localized heating of Earth's surface gives rise to
convection cycles. These occur
because heated air expands and rises, allowing
cooler air to flow in horizontally to
take its place. The convection cycles set up in
this way are often referred to as
thermal circulation. The horizontally moving air,
or wind, is acted on by
speed-dependent forces such as friction and the
Coriolis force. The Coriolis force is
the result of the rotation of Earth beneath the
moving air, which causes it to appear to
be deflected as it moves. Friction also causes
deflection and retardation of moving
air. As air flows outward from a high-pressure
region in the Northern Hemisphere, it is
deflected into clockwise rotation around the high
by the Coriolis force. Air moving
toward a low-pressure region is deflected into
counterclockwise rotation around the
low. Counterclockwise rotation around a
low-pressure cell is called a cyclone, and
clockwise rotation around a high is referred to as
an anticyclone. These rotational
patterns are reversed in the Southern Hemisphere.

Horizontal air movement is referred to as wind.
The speed of moving air determines
the strength of the wind. Wind speed is usually
measured in miles per hour or
kilometers per hour. Wind direction is determined
by the direction from which the
wind is blowing. For example, an east wind blows
from east to west. The speed of
the wind is measured with a device called an
anemometer, and the direction of the
wind is indicated by a wind vane.

Local heating and cooling often produce localized
air movement. For example, when
the ground is heated during the day, the air above
it rises, and cool air flows in to
replace the rising warm air. This often occurs
near large bodies of water, and the
resulting wind is called a sea breeze because the
surface wind moves from the water
toward the land. At night when the land cools off
more rapidly than the adjacent
water, the process is reversed and a land breeze
is likely to occur. Other winds such
as those associated with a monsoon occur because
of similar localized heating of
Earth's surface, although they are usually on a
much larger scale.

The overall global circulation patterns are driven
by differential heating that
establishes basic north-south wind movement. Three
basic north-south circulation
patterns are set up in the Northern Hemisphere and
three more in the Southern
Hemisphere. (See Fig. 19.21 in the textbook.) The
Coriolis force tends to turn these
wind patterns as they move across Earth's surface.
The results are six general
regions of air circulation, three north of the
equator and three south of the equator.

In the Northern Hemisphere the northeast trade
winds are the first of these regions
encountered. They blow primarily from the
northeast, producing generally regular and
steady winds between the equator and approximately
30° N. Between 30° N and 60°
N the pattern changes and is referred to as the
westerlies because of the prevailing
direction of air movement out of the west. North
of 60° the polar easterlies blow
predominantly from the northeast. In the Southern
Hemisphere these patterns are
reversed. (See Fig. 19.21 in the textbook.)
General wind patterns are responsible to a
large extent for the climate in many parts of the
world, and they also determined the
trade and exploration routes used by early
seafaring adventurers.

Prevailing wind patterns also exist in the upper
atmosphere that greatly affect the
climate and the severity of seasonal weather
conditions. These fast-moving rivers of
air are known as the jet streams. They are the
result of pressure differences where
great high-pressure and low-pressure areas meet.
It is probable that jet streams also
influence the formation of tornadoes and other
severe atmospheric storms.
--
God Bless America, ßill O|||||||O
mailto:-------------------- http://www.----------.com/


Stephen Cowell wrote:
>
> Bill, you're starting to look foolish (starting?)... the
> atmosphere mixes, your link never denied that, it even
> says that the atmosphere is remarkably consistant:
>
> http://college.hmco.com/physicalscie...udygoals/ch19/
>
> "Our atmosphere is quite complex, yet its composition remains surprisingly
> consistent. By volume, 99% is made up of only two common gases, nitrogen
> (78%) and oxygen (21%). The remaining 1% is primarily argon and carbon
> dioxide, together with very small traces of several other gases. "
>
> We all know that wind can blow across the Equator...
> at least, most of us know this. Do you deny this?
> How about the solar radiation, moving from North
> to South each year due to the seasons? This creates
> high/low pressure zones above and below the
> geographic Equator... air is exchanged.
>
> You can't find a cite that tells me air is not
> exchanged between hemispheres... but you
> are welcome to try... : )
> __
> Steve
> .
>
> __
> Steve
> .

L.W.(=?iso-8859-1?Q?=DFill?=) Hughes III

When they coined the phrase, "you may lead a horse to water, but
you can't make it drink" they ere thinking of you!

Section 19.4Air Motion

The gravitational pull of Earth acts downward on
molecules in the air, causing the
density of air to increase as you descend into the
atmosphere and to reach a
maximum near Earth's surface. It is, however,
pressure differences due to
temperature variations across the surface of Earth
that cause horizontal air
movements. When encountering the unbalanced forces
produced by these pressure
differences, air always moves from a high-pressure
region to a low-pressure one.

Localized heating of Earth's surface gives rise to
convection cycles. These occur
because heated air expands and rises, allowing
cooler air to flow in horizontally to
take its place. The convection cycles set up in
this way are often referred to as
thermal circulation. The horizontally moving air,
or wind, is acted on by
speed-dependent forces such as friction and the
Coriolis force. The Coriolis force is
the result of the rotation of Earth beneath the
moving air, which causes it to appear to
be deflected as it moves. Friction also causes
deflection and retardation of moving
air. As air flows outward from a high-pressure
region in the Northern Hemisphere, it is
deflected into clockwise rotation around the high
by the Coriolis force. Air moving
toward a low-pressure region is deflected into
counterclockwise rotation around the
low. Counterclockwise rotation around a
low-pressure cell is called a cyclone, and
clockwise rotation around a high is referred to as
an anticyclone. These rotational
patterns are reversed in the Southern Hemisphere.

Horizontal air movement is referred to as wind.
The speed of moving air determines
the strength of the wind. Wind speed is usually
measured in miles per hour or
kilometers per hour. Wind direction is determined
by the direction from which the
wind is blowing. For example, an east wind blows
from east to west. The speed of
the wind is measured with a device called an
anemometer, and the direction of the
wind is indicated by a wind vane.

Local heating and cooling often produce localized
air movement. For example, when
the ground is heated during the day, the air above
it rises, and cool air flows in to
replace the rising warm air. This often occurs
near large bodies of water, and the
resulting wind is called a sea breeze because the
surface wind moves from the water
toward the land. At night when the land cools off
more rapidly than the adjacent
water, the process is reversed and a land breeze
is likely to occur. Other winds such
as those associated with a monsoon occur because
of similar localized heating of
Earth's surface, although they are usually on a
much larger scale.

The overall global circulation patterns are driven
by differential heating that
establishes basic north-south wind movement. Three
basic north-south circulation
patterns are set up in the Northern Hemisphere and
three more in the Southern
Hemisphere. (See Fig. 19.21 in the textbook.) The
Coriolis force tends to turn these
wind patterns as they move across Earth's surface.
The results are six general
regions of air circulation, three north of the
equator and three south of the equator.

In the Northern Hemisphere the northeast trade
winds are the first of these regions
encountered. They blow primarily from the
northeast, producing generally regular and
steady winds between the equator and approximately
30° N. Between 30° N and 60°
N the pattern changes and is referred to as the
westerlies because of the prevailing
direction of air movement out of the west. North
of 60° the polar easterlies blow
predominantly from the northeast. In the Southern
Hemisphere these patterns are
reversed. (See Fig. 19.21 in the textbook.)
General wind patterns are responsible to a
large extent for the climate in many parts of the
world, and they also determined the
trade and exploration routes used by early
seafaring adventurers.

Prevailing wind patterns also exist in the upper
atmosphere that greatly affect the
climate and the severity of seasonal weather
conditions. These fast-moving rivers of
air are known as the jet streams. They are the
result of pressure differences where
great high-pressure and low-pressure areas meet.
It is probable that jet streams also
influence the formation of tornadoes and other
severe atmospheric storms.
--
God Bless America, ßill O|||||||O
mailto:-------------------- http://www.----------.com/


Stephen Cowell wrote:
>
> Bill, you're starting to look foolish (starting?)... the
> atmosphere mixes, your link never denied that, it even
> says that the atmosphere is remarkably consistant:
>
> http://college.hmco.com/physicalscie...udygoals/ch19/
>
> "Our atmosphere is quite complex, yet its composition remains surprisingly
> consistent. By volume, 99% is made up of only two common gases, nitrogen
> (78%) and oxygen (21%). The remaining 1% is primarily argon and carbon
> dioxide, together with very small traces of several other gases. "
>
> We all know that wind can blow across the Equator...
> at least, most of us know this. Do you deny this?
> How about the solar radiation, moving from North
> to South each year due to the seasons? This creates
> high/low pressure zones above and below the
> geographic Equator... air is exchanged.
>
> You can't find a cite that tells me air is not
> exchanged between hemispheres... but you
> are welcome to try... : )
> __
> Steve
> .
>
> __
> Steve
> .

L.W.(=?iso-8859-1?Q?=DFill?=) Hughes III

When they coined the phrase, "you may lead a horse to water, but
you can't make it drink" they ere thinking of you!

Section 19.4Air Motion

The gravitational pull of Earth acts downward on
molecules in the air, causing the
density of air to increase as you descend into the
atmosphere and to reach a
maximum near Earth's surface. It is, however,
pressure differences due to
temperature variations across the surface of Earth
that cause horizontal air
movements. When encountering the unbalanced forces
produced by these pressure
differences, air always moves from a high-pressure
region to a low-pressure one.

Localized heating of Earth's surface gives rise to
convection cycles. These occur
because heated air expands and rises, allowing
cooler air to flow in horizontally to
take its place. The convection cycles set up in
this way are often referred to as
thermal circulation. The horizontally moving air,
or wind, is acted on by
speed-dependent forces such as friction and the
Coriolis force. The Coriolis force is
the result of the rotation of Earth beneath the
moving air, which causes it to appear to
be deflected as it moves. Friction also causes
deflection and retardation of moving
air. As air flows outward from a high-pressure
region in the Northern Hemisphere, it is
deflected into clockwise rotation around the high
by the Coriolis force. Air moving
toward a low-pressure region is deflected into
counterclockwise rotation around the
low. Counterclockwise rotation around a
low-pressure cell is called a cyclone, and
clockwise rotation around a high is referred to as
an anticyclone. These rotational
patterns are reversed in the Southern Hemisphere.

Horizontal air movement is referred to as wind.
The speed of moving air determines
the strength of the wind. Wind speed is usually
measured in miles per hour or
kilometers per hour. Wind direction is determined
by the direction from which the
wind is blowing. For example, an east wind blows
from east to west. The speed of
the wind is measured with a device called an
anemometer, and the direction of the
wind is indicated by a wind vane.

Local heating and cooling often produce localized
air movement. For example, when
the ground is heated during the day, the air above
it rises, and cool air flows in to
replace the rising warm air. This often occurs
near large bodies of water, and the
resulting wind is called a sea breeze because the
surface wind moves from the water
toward the land. At night when the land cools off
more rapidly than the adjacent
water, the process is reversed and a land breeze
is likely to occur. Other winds such
as those associated with a monsoon occur because
of similar localized heating of
Earth's surface, although they are usually on a
much larger scale.

The overall global circulation patterns are driven
by differential heating that
establishes basic north-south wind movement. Three
basic north-south circulation
patterns are set up in the Northern Hemisphere and
three more in the Southern
Hemisphere. (See Fig. 19.21 in the textbook.) The
Coriolis force tends to turn these
wind patterns as they move across Earth's surface.
The results are six general
regions of air circulation, three north of the
equator and three south of the equator.

In the Northern Hemisphere the northeast trade
winds are the first of these regions
encountered. They blow primarily from the
northeast, producing generally regular and
steady winds between the equator and approximately
30° N. Between 30° N and 60°
N the pattern changes and is referred to as the
westerlies because of the prevailing
direction of air movement out of the west. North
of 60° the polar easterlies blow
predominantly from the northeast. In the Southern
Hemisphere these patterns are
reversed. (See Fig. 19.21 in the textbook.)
General wind patterns are responsible to a
large extent for the climate in many parts of the
world, and they also determined the
trade and exploration routes used by early
seafaring adventurers.

Prevailing wind patterns also exist in the upper
atmosphere that greatly affect the
climate and the severity of seasonal weather
conditions. These fast-moving rivers of
air are known as the jet streams. They are the
result of pressure differences where
great high-pressure and low-pressure areas meet.
It is probable that jet streams also
influence the formation of tornadoes and other
severe atmospheric storms.
--
God Bless America, ßill O|||||||O
mailto:-------------------- http://www.----------.com/


Stephen Cowell wrote:
>
> Bill, you're starting to look foolish (starting?)... the
> atmosphere mixes, your link never denied that, it even
> says that the atmosphere is remarkably consistant:
>
> http://college.hmco.com/physicalscie...udygoals/ch19/
>
> "Our atmosphere is quite complex, yet its composition remains surprisingly
> consistent. By volume, 99% is made up of only two common gases, nitrogen
> (78%) and oxygen (21%). The remaining 1% is primarily argon and carbon
> dioxide, together with very small traces of several other gases. "
>
> We all know that wind can blow across the Equator...
> at least, most of us know this. Do you deny this?
> How about the solar radiation, moving from North
> to South each year due to the seasons? This creates
> high/low pressure zones above and below the
> geographic Equator... air is exchanged.
>
> You can't find a cite that tells me air is not
> exchanged between hemispheres... but you
> are welcome to try... : )
> __
> Steve
> .
>
> __
> Steve
> .

L.W.(=?iso-8859-1?Q?=DFill?=) Hughes III

The Trade winds of course go in opposite directions at the equator.
Trade Winds:
Surface winds that generally dominate air flow in the tropics. These
winds blow from about 30° North and South latitude (subtropical high
pressure zone) to the equator (intertropical convergence zone). Trade
winds in the Northern Hemisphere have northeast to southwest direction
and are referred to as the Northeast Trades. Southern Hemisphere trade
winds have southeast to northwest direction but are called the Southeast
Trades.
God Bless America, ßill O|||||||O
mailto:-------------------- http://www.----------.com/

Dave Milne wrote:
>
> Yes, you are correct for cyclones and hurricanes, but the trade winds cross
> the equator !
>
> Dave Milne, Scotland
> '91 Grand Wagoneer, '99 TJ

L.W.(=?iso-8859-1?Q?=DFill?=) Hughes III

The Trade winds of course go in opposite directions at the equator.
Trade Winds:
Surface winds that generally dominate air flow in the tropics. These
winds blow from about 30° North and South latitude (subtropical high
pressure zone) to the equator (intertropical convergence zone). Trade
winds in the Northern Hemisphere have northeast to southwest direction
and are referred to as the Northeast Trades. Southern Hemisphere trade
winds have southeast to northwest direction but are called the Southeast
Trades.
God Bless America, ßill O|||||||O
mailto:-------------------- http://www.----------.com/

Dave Milne wrote:
>
> Yes, you are correct for cyclones and hurricanes, but the trade winds cross
> the equator !
>
> Dave Milne, Scotland
> '91 Grand Wagoneer, '99 TJ

L.W.(=?iso-8859-1?Q?=DFill?=) Hughes III

The Trade winds of course go in opposite directions at the equator.
Trade Winds:
Surface winds that generally dominate air flow in the tropics. These
winds blow from about 30° North and South latitude (subtropical high
pressure zone) to the equator (intertropical convergence zone). Trade
winds in the Northern Hemisphere have northeast to southwest direction
and are referred to as the Northeast Trades. Southern Hemisphere trade
winds have southeast to northwest direction but are called the Southeast
Trades.
God Bless America, ßill O|||||||O
mailto:-------------------- http://www.----------.com/

Dave Milne wrote:
>
> Yes, you are correct for cyclones and hurricanes, but the trade winds cross
> the equator !
>
> Dave Milne, Scotland
> '91 Grand Wagoneer, '99 TJ