Improved HITRAN crosssection model #360
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Preparations for new crosssection fit algorithm. Tighten compare criteria for xsec test. Simplify fit code. Adapt for changed grid order.
Use derivates for extraplation if target temperature or pressure is outside of fit.
Add extpol_p and extpol_t parameters to abs_xsec_per_speciesAddHitranXsec. Both are enabled by default. Remove apply_tfit parameter.
Code cleanup.
No longer needed for new hitran-xsec model.
Needed for upcoming integral adjustment.
Remove temperature/pressure dependency term. Negative xsec values are removed and integral is scaled accordingly. Update input coefficients for test case.
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* Add subsection about HITRAN cross section to the theory guide. * Add addititional package to common.tex and added additional references to references.bib.
* Add subsection about absorption cross section model and update subsection absorption species. * Update subsection HITRAN absorption cross section model. * Rename HITRAN absorption cross section model to absorption cross section model.
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This PR replaces the old model for calculating absorption for HITRAN crosssection species with an improved model. The ARTS implementation is based on the model mainly developed by @mbrath. The python code to calculate the coefficients for the model will be made available in a separate repository.
TODO: