Target
The target of version 1.5 is the radiative transfer. This includes a more sophisticated radiative transfer for pure absorption (i.e. the intensity-based scheme, petitRadtrans like one), with scattering, reflection lights (flux-adding scheme based on [Robinson and Crisp (2018)](https://arxiv.org/abs/1803.02378), LART), more test and improvements of transmission (incl. bug fix), and so on.
Feature List
Radiative Transfer
**Important:** the default RT scheme has been the intensity-based scheme w/ 8 streams (ibased), in ArtEmisPure for instance, since version 1.5 (more accurate and faster than the flux based, fbased, see 475, 457 ). This may change the result slightly because of the difference of the RT scheme.
- [x] Intensity-based radiative transfer for pure absorption 411 412 419
- [x] Toon-type two-stream radiative transfer (with scattering/reflection), flux-adding (and LART) 428 477
- [x] Forward modeling of the reflection spectrum, with an example of Jupiter's reflection spectrum. 477
- [x] transmission improvements (Simpson) and more tests 421 424 463 464
Scattering
- [x] Rayleigh scattering 115 430 434
- [x] Cloud (Mie) scattering using Ackerman and Marley cloud model 477
Other Improvements
- [x] OLA-based convolution of the response (spin and IP) 417
- [x] telluric line fitting 450
- [x] OpaCont includes H-, Rayleigh, Mie, and CIA 434 480
Big Fixes
- bugfix for non-constant gravity 447
- enables to compute gradients for transmission 463 464
- enables OpaDirect for VALD 404
- optelower for HITEMP 454
- slight change (uses nansum) in the f-based transfer 475
- 32 bit issue for mmw 473
Minor Issues
- valid auto T-range became wider than the previous version 345 456 466
- allows 32bit for MultiMol 461
See [here](https://github.com/HajimeKawahara/exojax/milestone/8?closed=1) for more details.