Counter

Search

Mass and Energy Conservation

August 30th, 2007 by Dan Hughes

When the basis of the mathematical models used in AOLGCM models/codes are discussed it is almost always stated that the ‘fundamental laws of conservation and mass and energy’ are at the foundations of the models. This is an incomplete, and somewhat incorrect, statement on several levels.

Conservation of mass and energy is the focus of the following discussion.

Read the rest of this entry »

Posted in Code Documentation, Validation, Verification | 4 Comments »

Editorial Policies of Scientific Journals

August 9th, 2007 by Dan Hughes

The recent results of an Independent Verification of a calculation at Climate Audit and discussed here brings me to mention the editorial policies of scientific journals relative to Verification, Validation, Software Quality Assurance, and Qualfications of models, methods, software, calculations, users, and applications. I have posted comments about the issues relative to publication of peer-reviewed papers on several blogs and given more detailed discussion here.

According to the results of a very unscientific survey by me, the scientific journals have no interest in these very important issues. Many engineering journals, however, have addressed the problems and developed editorial appropriate policies which must be met by authors.

A little over two years ago I wrote letters to the editors of several scientific journals in which the climate change community publishes papers. I have uploaded an example of the letter.

I think it’s time to followup on that letter, for a second time. Read the rest of this entry »

Posted in Code Documentation, Code Verification, Model Validation, Numerical methods Verification, Validation, Verification | No Comments »

A Start on a V&V and SQA Bibliography

February 23rd, 2007 by Dan Hughes

Here is a start on a bibliography for V&V and SQA books and articles.
Read the rest of this entry »

Posted in Calculation Verification, Code Documentation, Code Verification, Model Validation, Numerical methods Verification, Validation, Verification | 3 Comments »

A Discussion Paper on Software V&V and SQA

February 17th, 2007 by Dan Hughes

I have a kind of long discussion paper on V&V and SQA that I put together a couple of years ago. I have uploaded a copy V&V and SQA.

Posted in Code Documentation, MMS, Validation, Verification | No Comments »