Autochem
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Developer(s) | David Lary |
---|---|
Stable release | v8
/ 2005 |
Technical computing | |
License | Commercial proprietary software |
Website | www |
AutoChem is NASA release software[clarification needed] that constitutes an automatic computer code generator and documenter for chemically reactive systems[1] written by David Lary between 1993 and the present. It was designed primarily for modeling atmospheric chemistry, and in particular, for chemical data assimilation.
The user selects a set of chemical species. AutoChem then searches
The reactions involving the user specified constituents are extracted by the first AutoChem preprocessor program called Pick. This subset of reactions is then used by the second AutoChem preprocessor program RoC (rate of change) to generate the time derivatives, Jacobian, and Hessian. Once the two preprocessor programs have run to completion all the
A huge observational database of many different atmospheric constituents from a host of platforms are available from the AutoChem site.[2]
AutoChem has been used to perform long term chemical data assimilation of atmospheric chemistry. This assimilation was automatically documented by the AutoChem software and is available on line at CDACentral.[3] Data quality is always an issue for chemical data assimilation, in particular the presence of biases. To identify and understand the biases it is useful to compare observations using probability distribution functions. Such an analysis is available on line at PDFCentral which was designed for the validation of observations from the NASA Aura satellite.[4]
See also
References
- ^ "AutoChem". November 2005.
- ^ "Data References".
- ^ "Welcome to CDA Central". Archived from the original on July 17, 2006. Retrieved April 24, 2017.
- ^ "PDF Central". Archived from the original on February 23, 2007. Retrieved April 24, 2017.