1. What is GMD?
Why do we need it?
Who is involved?
How will it work?

2. Geoscientific Model Development (GMD) is an international scientific journal dedicated to the publication and public discussion of the description, development and benchmarking of numerical models of the Earth System and its components. Manuscript types considered for peer-reviewed publication are:
Model descriptions
Model intercomparison descriptions
Benchmarking papers
Technical papers

3. A few ‘Case Studies’ of bad practice…….
(the names have been changed to protect the innocent!)

4. A few ‘Case Studies’ of bad practice…….
(the names have been changed to protect the innocent!)
Papers containing ‘too much’ model description cut down or even rejected….

5. A few ‘Case Studies’ of bad practice…….
(the names have been changed to protect the innocent!)
Papers containing ‘too much’ model description cut down or even rejected….
“There is 14 pages of models description, and only 6 pages of experiments, results and discussion. It appears to me that needs more scientific analysis for publishing”.

6. A few ‘Case Studies’ of bad practice…….
(the names have been changed to protect the innocent!)
Institute webpages with links to model code….

7. A few ‘Case Studies’ of bad practice…….
(the names have been changed to protect the innocent!)
Institute webpages with links to model code….
“Bottomline: you should use the new version and forget the old one - if you ask us. (The plots on the web site are old - it is about time we supplied some numerical data for such checks as you are doing.)”

8. A few ‘Case Studies’ of bad practice…….
(the names have been changed to protect the innocent!)
Tracibility of model versions…..

9. A few ‘Case Studies’ of bad practice…….
(the names have been changed to protect the innocent!)
Tracibility of model versions…..
“there is no need to worry, when you get more barren than with the Journal 1 version. The version, which is on the web, produces more barren, because the water balance has been improved (Journal 2), which leads to drier conditions ….. You can look at the latest publication from in Journal 3”

10. A few ‘Case Studies’ of bad practice…….
(the names have been changed to protect the innocent!)
Loss of institution ‘memory’…..

11. A few ‘Case Studies’ of bad practice…….
(the names have been changed to protect the innocent!)
Loss of institution ‘memory’…..
“It turns out that the have lost the input files and code used to create the boundary conditions for their standard control simulation.”

12. A few ‘Case Studies’ of bad practice…….
(the names have been changed to protect the innocent!)

13. A few ‘Case Studies’ of bad practice…….
(the names have been changed to protect the innocent!)
~ 1.8 oC
~ 1.8 oC

14. A few ‘Case Studies’ of bad practice…….
(the names have been changed to protect the innocent!)
Undocumented irreproducibility across platforms….
~ 1.8 oC
~ 1.8 oC

15. Advisory Board:
Garry Clarke, Paul Crutzen, John Shepherd, Carl Wunsch

16. Advisory Board: Executive Editors:
Garry Clarke, Paul Crutzen, John Shepherd, Carl Wunsch
Dan Lunt, James Annan, Julia Hargreaves, Ian Rutt, Rolf Sander

17. Advisory Board: Executive Editors: Topical Editors:
Garry Clarke, Paul Crutzen, John Shepherd, Carl Wunsch
Dan Lunt, James Annan, Julia Hargreaves, Ian Rutt, Rolf Sander
Atmospheric Sciences: Boucher, Grewe, Hazeleger, Jöckel, Sander
Biogeosciences: Ridgwell
Climate and Earth System Modelling: Banks, Boucher, Goose, Hargreaves, Hazeleger, Kawamiya, Lawrence, Lunt, Marti, Otto-Bliesner
Cryosphere: Huybrechts, Ritz, Rutt
Hydrology: Bates, Coe
Numerical Methods: Annan, Rutt, Sandu, Tobis
Oceanography: Roberts

18. “Missing” subject areas:
Planetary and Solar System Sciences
Solar-terrestrial Science
Solid Earth (Geochemistry, Mineralogy, Petrology, Volcanology, Magnetism, Palaeomagnetism, Rock Physics, Geomaterials)

19. Advisory Board: Executive Editors: Topical Editors: Europe (17)
Garry Clarke, Paul Crutzen, John Shepherd, Carl Wunsch
Dan Lunt, James Annan, Julia Hargreaves, Ian Rutt, Rolf Sander
Atmospheric Sciences: Boucher, Grewe, Hazeleger, Jöckel,
Biogeosciences: Ridgwell
Climate and Earth System Modelling: Banks, Goose, Kawamiya, Lawrence, Marti, Otto-Bliesner
Cryosphere: Huybrechts, Ritz
Hydrology: Bates, Coe
Numerical Methods: Sandu, Tobis
Oceanography: Roberts
Europe (17)
North America (7)
Asia (3)

20. Detailed model description papers.
May include a user manual and actual code (as supplementary information).
Submission of short papers describing subsequent model development and bug-fixes will be encouraged. These papers will be electronically linked to the orginal, allowing a ‘portfolio’ to be developed.

21. Detailed model description papers.
May include a user manual and actual code (as supplementary information).
Submission of short papers describing subsequent model development and bug-fixes will be encouraged. These papers will be electronically linked to the orginal, allowing a ‘portfolio’ to be developed.
= Traceability and Reproducibility

22. A ‘traditional’ model….
“Results” papers
+ some development
Technical Notes
+ some more development

23. A ‘traditional’ model….
“Results” papers
+ some development
Technical Notes
+ some more development
A model published in GMD
GMD paper – v.1

24. A ‘traditional’ model….
“Results” papers
+ some development
Technical Notes
+ some more development
A model published in GMD
GMD paper – v.1
“Results” papers

25. A ‘traditional’ model….
“Results” papers
+ some development
Technical Notes
+ some more development
A model published in GMD
GMD paper – v.1
“Results” papers
GMD paper – v.2

26. A ‘traditional’ model….
“Results” papers
+ some development
Technical Notes
+ some more development
A model published in GMD
GMD paper – v.1
“Results” papers
GMD paper – v.2

27. A ‘traditional’ model….
“Results” papers
+ some development
Technical Notes
+ some more development
A model published in GMD
GMD paper – v.1
“Results” papers
GMD paper – v.2
GMD paper – v.3

28. A ‘traditional’ model….
“Results” papers
+ some development
Technical Notes
+ some more development
A model published in GMD
GMD paper – v.1
“Results” papers
GMD paper – v.2
GMD paper – v.3

29. A ‘traditional’ model….
“Results” papers
+ some development
Technical Notes
+ some more development
A model published in GMD
GMD paper – v.1
“Results” papers
GMD paper – v.2
GMD paper – v.3

30. GMD will provide a means by which the hard work of model developers can be formally recognised and published.
All papers to include model name and version number in title.
Special Issues for very large models, such as GCMs.
First 1000 pages are free!
Standard EGU format, including Open Access, Open Reviews, Discussions paper.

35. Accepting contributions via the webpage NOW!
Accepting contributions via the webpage NOW!
First paper currently in GMDD (discussions journal)
Any questions, contact the Executive Editors: