Atmosphere - Revision history

Admin: /* Low Pressure Areas */

2014-03-22T20:00:17Z

Low Pressure Areas

← Older revision		Revision as of 14:00, 22 March 2014
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	=== Low Pressure Areas ===		=== Low Pressure Areas ===
	Also called Depressions or Cyclones. Areas of MSL Pressure surrounded by higher pressure. They are marked by an L on surface charts.<ref>ACWM 5.3</ref> Ascending and convergence.		Also called Depressions or Cyclones. Areas of MSL Pressure surrounded by higher pressure. They are marked by an L on surface charts.<ref>ACWM 5.3</ref> Ascending (rising) and convergence. Cloudiness and precipitation.

	=References=		=References=
	<references />		<references />

Admin at 15:44, 22 March 2014

2014-03-22T15:44:28Z

← Older revision		Revision as of 09:44, 22 March 2014
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	Saturated air cools less rapidly than unsaturated air because heat is released during the condensation of water vapour.		Saturated air cools less rapidly than unsaturated air because heat is released during the condensation of water vapour.
	==== Dry ====		==== Dry ====
	Unsaturated - 3°/1000'		Unsaturated (less than 100% humidity) - 3°/1000'
	==== Wet ====		==== Wet ====
	Saturated - 1.5°/1000'.		Saturated (100% humidity) - 1.5°/1000'.
	==== Standard Atmosphere ====		==== Standard Atmosphere ====
	1.98°/1000'. Also called the environmental lapse rate.		1.98°/1000'. Also called the environmental lapse rate.

Admin: environmental lapse rate

2014-03-16T18:12:21Z

environmental lapse rate

← Older revision		Revision as of 12:12, 16 March 2014
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	Saturated - 1.5°/1000'.		Saturated - 1.5°/1000'.
	==== Standard Atmosphere ====		==== Standard Atmosphere ====
	1.98°/1000'		1.98°/1000'. Also called the environmental lapse rate.

	== Definitions ==		== Definitions ==

Admin: Added Cloud Base Calculations

2014-03-16T18:05:06Z

Added Cloud Base Calculations

← Older revision		Revision as of 12:05, 16 March 2014
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	<br />		<br />
	The earth's surface is heated by short wave solar radiation.		The earth's surface is heated by short wave solar radiation.
			=== Calculate Cloud Base ===
			[(Surface Temperature °C - Dewpoint °C) / 2.5] * 1000. Shortcut if all temperatures are in °C, (Surface Temperature - Dewpoint) * 400.

	=== Lapse Rates ===		=== Lapse Rates ===
	Saturated air cools less rapidly than unsaturated air because heat is released during the condensation of water vapour.		Saturated air cools less rapidly than unsaturated air because heat is released during the condensation of water vapour.

Admin: /* Lapse Rates */

2014-03-16T17:58:30Z

Lapse Rates

← Older revision		Revision as of 11:58, 16 March 2014
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	The earth's surface is heated by short wave solar radiation.		The earth's surface is heated by short wave solar radiation.
	=== Lapse Rates ===		=== Lapse Rates ===
			Saturated air cools less rapidly than unsaturated air because heat is released during the condensation of water vapour.
	==== Dry ====		==== Dry ====
	Unsaturated - 3°/1000'		Unsaturated - 3°/1000'
	==== Wet ====		==== Wet ====
	Saturated - 1.5°/1000'		Saturated - 1.5°/1000'.
	==== Standard Atmosphere ====		==== Standard Atmosphere ====
	1.98°/1000'		1.98°/1000'

Admin at 17:56, 16 March 2014

2014-03-16T17:56:48Z

← Older revision		Revision as of 11:56, 16 March 2014
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	<br />		<br />
	The earth's surface is heated by short wave solar radiation.		The earth's surface is heated by short wave solar radiation.
			=== Lapse Rates ===
			==== Dry ====
			Unsaturated - 3°/1000'
			==== Wet ====
			Saturated - 1.5°/1000'
			==== Standard Atmosphere ====
			1.98°/1000'

	== Definitions ==		== Definitions ==

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	=== Low Pressure Areas ===		=== Low Pressure Areas ===
	Also called Depressions or Cyclones. Areas of MSL Pressure surrounded by higher pressure. They are marked by an L on surface charts.<ref>ACWM 5.3</ref>		Also called Depressions or Cyclones. Areas of MSL Pressure surrounded by higher pressure. They are marked by an L on surface charts.<ref>ACWM 5.3</ref> Ascending and convergence.

	=References=		=References=
	<references />		<references />

Admin: Created page

2014-03-16T17:45:38Z

Created page

New page

[[Category:Weather]]
= Atmosphere =
The Atmosphere is composed of 78% nitrogen, 21% oxygen, and 1% other gases.<ref>ACWM 2-1</ref>
<br />
The earth's surface is heated by short wave solar radiation.
== Definitions ==

=== ISA ===
International Standard Atmosphere - Temperature at sea level is 15°C and the pressure is 1013.2hPa. The standard lapse rate is 2°/1000'.<ref>[https://en.wikipedia.org/wiki/International_Standard_Atmosphere Wikipedia ISA]</ref>

=== Diurnal ===
Daily temperature change.

=== Troposphere ===
Part of the earth that contains all the elements of the weather.<ref>ACWM 2-2</ref>

=== Mesosphere ===
Region of the atmosphere between the stratopause and the mesopause.<ref>[https://en.wikipedia.org/wiki/Atmospheric_layers#Mesosphere Wikipedia Mesosphere]</ref>

=== Stratosphere ===
Temperatures in the lower stratosphere approximate those of the tropopause.<ref>ACWM 2.3</ref>

=== Ozone ===
A nearly colourless gas that is a very strong absorber of ultraviolet radiation and which is found at all altitudes in the atmosphere.<ref>AMWM 2-5</ref><ref>[https://en.wikipedia.org/wiki/Ozone Wikipedia Ozone]</ref>

=== Coriolis Force ===
Force that is a result of the earth's rotation. It causes air in motion to deflect to the right in the northern hemisphere and to the let in the southern hemisphere.<ref>ACWM 5-6</ref>

=== Convection ===
Atmospheric motions in the vertical direction.

=== Convergence ===
Air that is being forced together into a smaller area<ref>http://www.islandnet.com/~see/weather/elements/whatgoesup3.htm</ref> Divergence is air being moved away or spreading out from an area.

=== Low Pressure Areas ===
Also called Depressions or Cyclones. Areas of MSL Pressure surrounded by higher pressure. They are marked by an L on surface charts.<ref>ACWM 5.3</ref>

=References=
<references />