Assimilation is sometimes confused with another linguistic term--coarticulation--largely because coarticulation has sometimes been employed in linguistic writing as more or less equivalent to assimilation.
It is understandable if singers and teachers associate the term assimilation with the notion of a special context, encountered only on occasion, that requires particular treatment, as in French.
Assimilation typically assumes a number of common forms.
This is the type of assimilation familiar from French and known as vowel harmonization, in which a vowel is modifed to conform to the vowel in the ensuing syllable: "heureux" [[TEXT NOT REPRODUCIBLE IN ASCII]], "les baisers" [le.
Other examples of English vowel accommodation include unstressed schwas replaced by syllabic consonants ([s[LAMBDA]d[TEXT NOT REPRODUCIBLE IN ASCII]]), and the apostrophe contractions ("can't," "wouldn't"), but these more accurately fall under the rubric of elision than assimilation.
While it is possible that future developments in data assimilation may enable the discernment of model error from observational error in bias corrections, there is little doubt that highly accurate data will make any such discernment more tractable.
Finally, analysis of the diagnostics of four-dimensional variational assimilation is not the only approach to diagnosing model error, but by virtue of its ability to disentangle the different physical processes at work in the context of a system that considers both the full dynamical equations of motion and a large abundance of data, it is likely that any problem encountered in our numerical experiment will also be encountered in less direct and less objective approaches.
For reference, the diagram above conceptually illustrates the steps in data assimilation for any particular state variable (e.
Data assimilation is the procedure by which a numerical model of the atmosphere is guided by observational data to best represent the atmosphere's true evolving state.
Thepault, 2006: Assimilation experiments with CHAMP GPS radio occultation measurements.