Modelling class/workshop: Difference between revisions
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==Motivation== | ==Motivation== | ||
Many of us are using modelling more or less extensively as a part of our thesis and even if one wouldn’t be using any model, it would be very beneficial to have some knowledge about model set-up just to be able to read the literature and analyse the data. Also it is relatively easy to get access to different model codes in general and even set up an experiment. However, it might be often be that the user doesn't understand all (or maybe any of) the issues related to the set-up and in the worst case one might try to interpret some model artefacts as meaningful results. We hope this course could give some insight in these issues. | Many of us are using modelling more or less extensively as a part of our thesis and even if one wouldn’t be using any model, it would be very beneficial to have some knowledge about model set-up just to be able to read the literature and analyse the data. Also it is relatively easy to get access to different model codes in general and even set up an experiment. However, it might be often be that the user doesn't understand all (or maybe any of) the issues related to the set-up and in the worst case one might try to interpret some model artefacts as meaningful results. We hope this course could give some insight in these issues. | ||
Line 26: | Line 5: | ||
*Learn how different processes are represented in different types of models | *Learn how different processes are represented in different types of models | ||
*Why and what does it mean in terms of using the model | |||
==Learning outcomes== | ==Learning outcomes== | ||
Line 51: | Line 24: | ||
***resolution | ***resolution | ||
***coupling | ***coupling | ||
***predictability (Francois) | ***predictability (Francois Counillon) | ||
***super-parameterizations | ***super-parameterizations | ||
***Boundary conditions | |||
***Initialization | |||
***Conservation of properties | ***Conservation of properties | ||
**''' | **'''Parameterizations for missing [physical] processes (rest of the week)''' | ||
***Convection | ***Convection (Mats, Thomas T knows Steve) | ||
***Mixing | ***Mixing (Mehmet, Robert Hallberg, Alistair Adcroft, Markus Jochum) | ||
***Topography | ***Topography (Pål Erik Isachsen) | ||
***Internal waves | ***Internal waves (Jonas Nycander, Jarle Berntsen) | ||
***Radiation | ***Surface (Thomas knows a guy) | ||
***Cloud microphysics | ***Radiation (Thomas T) | ||
***Cloud microphysics (Trond Iversen, Jon-Egill Kristjansson, from Oslo) | |||
**'''Special topics''' for 1-1/2 day depending on time/lecturers | |||
***sea-ice/land ice/carbon (Petra, Kerim, Pierre Rampal, Cristoph Heinze) | |||
<!--**First steps about model validation | <!--**First steps about model validation | ||
*Learn how to set-up and run a sensitivity test with a climate model--> | *Learn how to set-up and run a sensitivity test with a climate model--> | ||
*Note: it's obvious that each of these topics could be made into a semester long class, so some narrowing down has to happen. | *Note: it's obvious that each of these topics could be made into a semester long class, so some narrowing down has to happen. | ||
== | ==Time Plan== | ||
The class would be based on lectures and discussion session about lectures and pre-assigned literature. The idealised order is given below. Some flexibility is of course possible. | |||
===Detailed Time Plan [suggestions for Organisers]=== | ===Detailed Time Plan [suggestions for Organisers]=== | ||
{| class="wikitable" | |||
|- | |||
! Time !!Monday !! Tuesday !! Wednesday !! Thursday !! Friday | |||
|- | |||
| 9-10 || General Intro || Lecture || Lecture || Lecture || Lecture | |||
|- | |||
| 10-11 || Lecture || Lecture || Lecture || Lecture || Lecture | |||
** | |- | ||
* | | 11-12 || Discussion || Discussion || Discussion || Discussion || Discussion | ||
|- | |||
| 12-13 || Lunch || Lunch || Lunch || Lunch || Lunch | |||
|- | |||
| 13-14 || Lecture || Lecture || Lecture || Lecture || Lecture | |||
|- | |||
* | | 14-15 || Discussion || Discussion || Discussion || Discussion || Discussion | ||
* | |- | ||
| 15-16 || Lecture || Lecture || Lecture || Lecture || Lecture | |||
|- | |||
| 16-17 || Discussion || Discussion || Discussion || Discussion || Discussion | |||
|} | |||
* | |||
* | |||
* | === Part I: General Intro (Mo) === | ||
* | |||
The idea is to give a give a general overview of what models exists and what they are used for. It should lead towards the specific modelling problems that we picked for the following days. More philosophical thoughts on the limits of modelling both for making predictions and for gaining understanding are welcome, especially for the discussion slots on Monday. | |||
'''Specific topics for Monday:''' (1 lecture for each) | |||
* | *Basic Equations, approximation, predictability | ||
* | *Discretization, resolution, parameterization, conservation of properties | ||
*Initializations, Boundary conditions | |||
=== Part II: Topic days (Tu — Fr) === | |||
For a few selected topics, the following questions should be answered | |||
#On which scales to I have to consider which effects (and what happens if I don't)? | |||
#How is it treated in models of varying complexity? | |||
In order to better tie the related topics together, the first (maybe shorter) lecture of the day could introduce the theme and suggest some links between the topics. | |||
'''Specific topics for Tuesday''' (2 lectures for both or as the lecturer(s) want to separate) | |||
*Coupling, nesting, super-parameterization | |||
*Bathymetry/Topography, Internal waves | |||
'''Specific topics for Wednesday''' (2 lectures for both or as the lecturer(s) want to separate) | |||
*Mixing/Turbulence | |||
*Convection | |||
'''Specific topics for Thursday''' (2 lectures for both or as the lecturer(s) want to separate) | |||
*Cloud Microphysics | |||
*Radiation | |||
'''Specific topics for Friday''' (2 lectures for both or as the lecturer(s) want to separate) | |||
*Surface I: Air-sea interaction, from AGCM+slab-ocean / OGCM+prescribed wind stresses to coupled AOGCMs | |||
*Surface II: EITHER Vegetation & land surface OR ice & snow depending on lecturer | |||
=== Timing === | |||
20th-24th January | |||
==Funding== | ==Funding== | ||
Line 118: | Line 115: | ||
==Questions to find out and solve== | ==Questions to find out and solve== | ||
*Examples of the somewhat similar ones out there already? | *Examples of the somewhat similar ones out there already? | ||
Line 133: | Line 122: | ||
**The University of Helsinki/Finnish met institute is offering a class, where they choose a different model each time and do some specific tests and write a short report. This class is also offered as a web-course for anyone interested. | **The University of Helsinki/Finnish met institute is offering a class, where they choose a different model each time and do some specific tests and write a short report. This class is also offered as a web-course for anyone interested. | ||
**There is also a the European Earth System and Climate Modelling School lead by the NCAS & MPI-M, the length is similar. | **There is also a the European Earth System and Climate Modelling School lead by the NCAS & MPI-M, the length is similar. | ||
==Online resources== | |||
* [http://stratus.astr.ucl.ac.be/textbook/contents.html Hugue Goosse's climate dynamics and modelling book] | |||
* [http://www.realclimate.org/index.php/archives/2005/01/is-climate-modelling-science/ RealClimate article] |
Latest revision as of 06:08, 2 October 2013
Motivation
Many of us are using modelling more or less extensively as a part of our thesis and even if one wouldn’t be using any model, it would be very beneficial to have some knowledge about model set-up just to be able to read the literature and analyse the data. Also it is relatively easy to get access to different model codes in general and even set up an experiment. However, it might be often be that the user doesn't understand all (or maybe any of) the issues related to the set-up and in the worst case one might try to interpret some model artefacts as meaningful results. We hope this course could give some insight in these issues.
The idea in short
- Learn how different processes are represented in different types of models
- Why and what does it mean in terms of using the model
Learning outcomes
- Learn some fundamentals of different type of models
- What type of questions can be answered with full climate models, ocean/atmosphere stand-alone, regional scale etc.
- Process approach: go trough some of the most challenging aspects in modelling and how are they solved in different type of models and what consequences does this have
- Topics:
- Model set-up/design, 1st day, how to build a model
- Basic equations
- Discretizations (Mats: unstructured grids, volume vs spectral, dis/advantages)
- approximations (non-hydrostatic vs hydrostatic)
- resolution
- coupling
- predictability (Francois Counillon)
- super-parameterizations
- Boundary conditions
- Initialization
- Conservation of properties
- Parameterizations for missing [physical] processes (rest of the week)
- Convection (Mats, Thomas T knows Steve)
- Mixing (Mehmet, Robert Hallberg, Alistair Adcroft, Markus Jochum)
- Topography (Pål Erik Isachsen)
- Internal waves (Jonas Nycander, Jarle Berntsen)
- Surface (Thomas knows a guy)
- Radiation (Thomas T)
- Cloud microphysics (Trond Iversen, Jon-Egill Kristjansson, from Oslo)
- Special topics for 1-1/2 day depending on time/lecturers
- sea-ice/land ice/carbon (Petra, Kerim, Pierre Rampal, Cristoph Heinze)
- Model set-up/design, 1st day, how to build a model
- Note: it's obvious that each of these topics could be made into a semester long class, so some narrowing down has to happen.
Time Plan
The class would be based on lectures and discussion session about lectures and pre-assigned literature. The idealised order is given below. Some flexibility is of course possible.
Detailed Time Plan [suggestions for Organisers]
Time | Monday | Tuesday | Wednesday | Thursday | Friday |
---|---|---|---|---|---|
9-10 | General Intro | Lecture | Lecture | Lecture | Lecture |
10-11 | Lecture | Lecture | Lecture | Lecture | Lecture |
11-12 | Discussion | Discussion | Discussion | Discussion | Discussion |
12-13 | Lunch | Lunch | Lunch | Lunch | Lunch |
13-14 | Lecture | Lecture | Lecture | Lecture | Lecture |
14-15 | Discussion | Discussion | Discussion | Discussion | Discussion |
15-16 | Lecture | Lecture | Lecture | Lecture | Lecture |
16-17 | Discussion | Discussion | Discussion | Discussion | Discussion |
Part I: General Intro (Mo)
The idea is to give a give a general overview of what models exists and what they are used for. It should lead towards the specific modelling problems that we picked for the following days. More philosophical thoughts on the limits of modelling both for making predictions and for gaining understanding are welcome, especially for the discussion slots on Monday.
Specific topics for Monday: (1 lecture for each)
- Basic Equations, approximation, predictability
- Discretization, resolution, parameterization, conservation of properties
- Initializations, Boundary conditions
Part II: Topic days (Tu — Fr)
For a few selected topics, the following questions should be answered
- On which scales to I have to consider which effects (and what happens if I don't)?
- How is it treated in models of varying complexity?
In order to better tie the related topics together, the first (maybe shorter) lecture of the day could introduce the theme and suggest some links between the topics.
Specific topics for Tuesday (2 lectures for both or as the lecturer(s) want to separate)
- Coupling, nesting, super-parameterization
- Bathymetry/Topography, Internal waves
Specific topics for Wednesday (2 lectures for both or as the lecturer(s) want to separate)
- Mixing/Turbulence
- Convection
Specific topics for Thursday (2 lectures for both or as the lecturer(s) want to separate)
- Cloud Microphysics
- Radiation
Specific topics for Friday (2 lectures for both or as the lecturer(s) want to separate)
- Surface I: Air-sea interaction, from AGCM+slab-ocean / OGCM+prescribed wind stresses to coupled AOGCMs
- Surface II: EITHER Vegetation & land surface OR ice & snow depending on lecturer
Timing
20th-24th January
Funding
Tore Furevik: typically around 50 Knok + travel and accommodation for all participants. This covers travel and accommodation for one or two lecturers plus some lecture fees at standard UiB rates.
Questions to find out and solve
- Examples of the somewhat similar ones out there already?
- Stockholm University is offering a class titled "introduction to climate modelling"
- This class sounds like it could be the basis for ours
- More information flyer, description and schedule
- The University of Helsinki/Finnish met institute is offering a class, where they choose a different model each time and do some specific tests and write a short report. This class is also offered as a web-course for anyone interested.
- There is also a the European Earth System and Climate Modelling School lead by the NCAS & MPI-M, the length is similar.
- Stockholm University is offering a class titled "introduction to climate modelling"