breakout session: 5c recorder:

ASCL Workshop— Boulder, COASCL Workshop— Boulder, CO

Fundamental ConceptsFundamental Conceptsfor Essential Principal:for Essential Principal:

Atmospheric circulations transport Atmospheric circulations transport mattermatter, gases, particles, energy , gases, particles, energy and and

momentum.momentum.

Breakout session: Breakout session: 5c5cRecorder: <Susan Avery and Peter Recorder: <Susan Avery and Peter

Tuddenham>Tuddenham>

ASCL Workshop— Boulder, CO

Initial CommentsInitial Comments► Q: Circulation or circulations?Q: Circulation or circulations?► Q: Transport momentum or transfer momentum?Q: Transport momentum or transfer momentum?► Q: Where are forces covered?Q: Where are forces covered?► Q: EP1: Structure and composition of atmosphere should be Q: EP1: Structure and composition of atmosphere should be

in EP1? Should include aerosols, basic chemical structure, in EP1? Should include aerosols, basic chemical structure, and ionosphere (including upper atmosphere)and ionosphere (including upper atmosphere)

► Q: EP2: Should include sun variability and other forces (IR Q: EP2: Should include sun variability and other forces (IR heating (indirect solar response), Coriolis force, etc) which heating (indirect solar response), Coriolis force, etc) which gives rise to the circulation. gives rise to the circulation.

► Q: EP 4: The atmosphere changes over time and space Q: EP 4: The atmosphere changes over time and space giving rise to weather, climate, giving rise to weather, climate, and space weatherand space weather. (reword). (reword)

► Point: These fundamental concepts link to other essential Point: These fundamental concepts link to other essential principles and should reinforce the system approach.principles and should reinforce the system approach.


Fundamental Concept #1Fundamental Concept #1

►Patterns of motion/circulation can be Patterns of motion/circulation can be observed at different levels from the observed at different levels from the global to local. The spin of the earth global to local. The spin of the earth and differences in atmospheric and differences in atmospheric heating/pressure establish the basic heating/pressure establish the basic circulation.circulation.



►The atmosphere transports water The atmosphere transports water vapor and particles that impact the vapor and particles that impact the formation and development of formation and development of precipitation and weather systems. It precipitation and weather systems. It is an important component of the is an important component of the global water cycle. There is a dynamic global water cycle. There is a dynamic relationship between atmosphere, relationship between atmosphere, hydrosphere, lithosphere.hydrosphere, lithosphere.



►Atmosphere transport produces Atmosphere transport produces episodic events of energy exchanges episodic events of energy exchanges resulting in cyclones, hurricanes, resulting in cyclones, hurricanes, tornados and other extreme weather tornados and other extreme weather and climate effects. and climate effects.



►Circulation(s) distribute energy, water, Circulation(s) distribute energy, water, gases, particles, globally establishing gases, particles, globally establishing climate, weather, and upper atmosphere climate, weather, and upper atmosphere patterns that can be beneficial or patterns that can be beneficial or detrimental to the health of the planet detrimental to the health of the planet and the health of individuals (air quality, and the health of individuals (air quality, pollution, droughts, floods, wildfire, pollution, droughts, floods, wildfire, severe storms, stratospheric ozone, severe storms, stratospheric ozone, satellite, and communication systems, satellite, and communication systems, power grids). power grids).



►Energy exchanges occur at the Energy exchanges occur at the atmospheric boundaries which in turn atmospheric boundaries which in turn have an interface with the ocean, land, have an interface with the ocean, land, space, and sun. These energy space, and sun. These energy exchanges drive circulation(s). (Latent exchanges drive circulation(s). (Latent heating, conduction, convection, heating, conduction, convection, sensible heat, radiation, albedo, sensible heat, radiation, albedo, density differences, absorption, density differences, absorption, particle heating).particle heating).



►Matter exchanges at the atmospheric Matter exchanges at the atmospheric boundaries affect other important boundaries affect other important cycles that are essential to life (carbon cycles that are essential to life (carbon cycle, nitrogen cycle, photosynthesis, cycle, nitrogen cycle, photosynthesis, fresh water). fresh water).


Fundamental Concept #7 Fundamental Concept #7 and #8and #8

►Technology enables us to observe, Technology enables us to observe, model, and predict circulation model, and predict circulation transports in the atmosphere (EP 6)transports in the atmosphere (EP 6)

►Human activities contribute to change Human activities contribute to change in atmospheric circulation patterns (EP in atmospheric circulation patterns (EP 7) 7)


Concluding RemarksConcluding Remarks

►What are the properties of a system?What are the properties of a system?►Concern that we are not addressing Concern that we are not addressing

system issues and that this process is system issues and that this process is reinforcing existing paradigms.reinforcing existing paradigms.


Final StepFinal Step

►At the end of the breakout session, the At the end of the breakout session, the Recorder should save this file, using the Recorder should save this file, using the following naming convention:following naming convention:

ascl_breakoutascl_breakout_<session#(5b, 7a, _<session#(5b, 7a, etc)>.etc)>.pptppt

eg., eg., ascl_breakout_6c.pptascl_breakout_6c.ppt►Once you have saved the file, please Once you have saved the file, please

transfer it to your session’s OPL, who will transfer it to your session’s OPL, who will upload it for use in the following plenary.upload it for use in the following plenary.

breakout session: 5c recorder:

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