Webpage of the course
Physics of the Atmosphere and the Ocean
(L.M.
Fisica)  A.A. 2021/2022
Microsoft Teams Channel: contact the teacher
G.
Redaelli (gianluca.redaelli@aquila.infn.it)
L. Sangelantoni (lorenzo.sangelantoni@aquila.infn.it)
Orario/Lesson Timetable: contact the teacher
Ricevimento del docente/office hours: by appointment
Testi di riferimento/reference textbooks:
J. Wallace and P. Hobbs, Atmospheric Science: An introductory survey, Academic Press
Jacob D. J., Introduction to Atmospheric Chemistry, Princeton University Press
Jacobson M. Z., Fundamentals of Atmospheric Modeling, Cambridge University Press
Calendario Lezioni/Lesson schedule
Part I  I Semester 
6 CFU/ECTS GEO12
1 
Fr 1 October 

Introduction to the course. General characteristics of the Atmosphere. 
2 
Mo 4 October 
General characteristics of the Atmosphere: mass, chemical composition, temperature, pressure, winds. Surface winds and SST.  
3 
Mo 11 October 
General characteristics of the Atmosphere: General Circulation and surface winds in an "Aquaplanet" approximation.  
4  We 13 October 
Atmospheric Thermodynamics: gas laws, hydrostatic equation, geopotential, scale height and hypsometric equation, reduction of pressure to sea level.  
5  We 20 October 
Atmospheric Thermodynamics: The first law of thermodynamics, Enthalpy and sensible heat, The Dry Adiabatic Lapse Rate.  
6  Mo 25 October 
Atmospheric Thermodynamics: Potential Temperature and Static stability.  
7 
We 27 October 
Atmospheric Thermodynamics: Buoyancy oscillations and Brunt–Väisälä frequency.  
8  We 3 November 
Water Vapor in Air: Virtual Temperature and moisture parameters.  
9  We
10 November 
Water Vapor in Air: LCL and Pseudoadiabatic Processes, The Saturated Adiabatic Lapse Rate, Equivalent Potential Temperature, Conditional Instability.  
10  Mo
15 November 
Radiative
transfer:Blackbody Radiation.
Properties of nonblack materials. 

11  Mo
22 November 
Calculation
of the Effective Emission
Temperature of the Earth. Greenhouse
effect. Radiative Forcing and
Climate Sensitivity. 

12  We 24 November 
Radiative
transfer:Physics of Scattering
and Absorption and Emission. 

13  Th
25 November 
Climate
Equilibria,
Sensitivity
and Feedback.
Climate
feedback
factors. 

14  Mo 29 November 
Main Climate Feedbacks. The climate system. Transient versus equilibrium response.  
15  We 1 December 
Stable,
unstable and
multiple
equilibrium
states:
Daisyworld.


16 
Fr 3 December 
Evidences
of the building of GHGs
and of global warming.
GHGs and GWP. Anthropogenic forcings. 

17  Mo 6 December 
Atmospheric
Chemistry: Gasphase
species, chemical
reactions,
and reaction rates.
Temperature and
pressure dependence
of rate
coefficients.


18 
Tu 14 December 
Sets of reactions. Stiff systems. Chemical lifetimes and residence time.  
19  We 15 December 
1D Energy Balance Model for the calculation of Ts: numerical solution.  
20  Th 16 December 
1D
Energy Balance Model
for the calculation
of Ts: numerical
solution. Atmospheric Chemistry: Photostationarystate approximation. 

21  Mo 20 December 
Chemical
families: general
characteristics and
calculation of
partition ratios. Stratospheric Ozone: the Chapman cycle. 

23 
Mo 10 January 
The
Chapman cycle:
Steady state
solution and
calculation of
vertical profile.
Catalytic Ozone
loss cycles (HOx
and NOx)


24 
Tu 11 January 
Catalytic
Ozone loss cycles
(NOx and ClOx). Vertical distribution and techniques for measuring Atmospheric Ozone. 

25 
We 12 January 
Tropospheric Ozone: principal chemical reactions and NOx/HOx cycles. 
Parte II  II Semestre  4 CFU/ECTS FIS06
26 
Mo 28 February 
The
Antarctic Ozone
Hole: evolution
and experimental
evidences. Heterogeneous chemistry on PSC's surfaces. 

27 
Fr 4 March 
The
Antarctic Ozone
Hole: dynamical
causes and
prediction for the
future. The Geochemical cycles. 

28 
Mo
7 March 
Atmospheric Dynamics: elementary kinematic properties of the largescale flow.  
29  Fr
18 March 
Atmospheric
Dynamics:
dynamics of the
horizontal flow.
Apparent and
real forces. The horizontal equation of motion. The Geostrophic wind. The effect of Friction. 

30  Mo
21 March 
Atmospheric
Dynamics: The
Gradient wind
and the
Thermal wind.
Conservation laws for Vorticity. 

31  Mo
28 March 
Atmospheric
Dynamics:
Barotropic and
Isentropic
Potential
Vorticity. The Primitive Equations. 

32  Fr
1 April 
Atmospheric
Dynamics:
Inference of
the Vertical
Motion Field.
From Primitive equations to General Circulation in an Aquaplanet atmosphere 

33  Fr
8 April 
Finite
grid vs
spectral
formulation
for AGCMs. The Ocean General Circulation. 

34 
Mo
11 April 
Patterns and indices of Climate Variability: Main indices and statistical derivation.  
35  We
13 April 
Patterns and indices of Climate Variability: ENSO, AO, NAO, PDO.  
36  We
13 April 
Launch of a balloon with PTU sensors and ECC ozonesonde.  
37  


38  
39  
40  
41  
42  
43  
44 