ARTS 2.6.0

Many changes have gone into ARTS since the 2.4.0 release. Below you find some key features and improvements in ARTS 2.6.0:

• extension to shortwave radiation
• support of measured cross-section data (e.g. HITRAN absorption cross sections)
• new clear-sky solver with support for shortwave radiation (iyClearsky)
• molecular scattering (clear-sky Rayleigh scattering)
• improved DISORT interface
• much improved Python integration

We recommend to install ARTS in Miniforge3 with mamba install -c rttools pyarts.

ARTS 2.5.12

What's Changed

• CIA now does all species by @riclarsson in #597
• Add LBL example routine by @riclarsson in #593
• Add CIA example routine by @riclarsson in #594
• A bug fix by @erikssonpatrick in #599
• Interpolation routine in a uniform matter by @riclarsson in #598
• Adding ppath plotting by @riclarsson in #605
• Optimize IGRF13 calculations by @olemke in #606
• Implement recent Rosenkranz absorption models by @stuartfox in #613
• Add convenience functions for reading ARTS types in PyARTS by @olemke in #616
• License update by @riclarsson in #611
• Fix clangd completion inside OpenMP blocks by @olemke in #628
• Update authors by @olemke in #631
• Add MPM93 nitrogen (dry air) continuum as predefined model by @stuartfox in #629
• Add back mtckd 3.2 by @riclarsson in #633
• Make repr and str print full value by @riclarsson in #640
• Single frequency LBL by @riclarsson in #638
• Fix bug in XSEC calculations by @riclarsson in #645
• Respect the extrapolation factor passed to CIA-Extract routine by @riclarsson in #647
• Make CIA file. Expose absorption computations for HXSEC by @riclarsson in #646
• Rename Disort WSMs by @m-brath in #649
• Update to pybind 2.11.1 by @olemke in #655
• Parallelize run_cdisort_flux by @olemke in #658
• Add CMake presets and conda environment configurations by @olemke in #660
• Change to use lx and dlx initialised by static functions by @riclarsson in #667
• Fix check-all by @olemke in #670
• Fix bug in ScatSpeciesMerge by @olemke in #674
• Fix cloudboxSetAutomatically by @olemke in #681
• Update heating rates by @m-brath in #682
• Distribute and document arts_convert script by @olemke in #685
• Add catalog download function by @olemke in #699

Full Changelog: v2.5.10...v2.5.12

ARTS 2.5.10

What's Changed

• Add description for adding groups; you must also do python by @riclarsson in #578
• Fix missing dependency for eigen-matpack integration test by @riclarsson in #580
• Making 1D allsky simulations with collimated source using yCalc possible by @m-brath in #581
• Refactor stars by @m-brath in #583
• Split line shape by @riclarsson in #582
• Description of antenna pattern + more by @erikssonpatrick in #585
• Allow empty parens in WSM calls by @olemke in #586
• Define star spectrum at given location by @j-petersen in #573
• Extra type checking by @riclarsson in #587
• Use source_location when available for better error msg by @riclarsson in #588
• Fix error on bad input for AbsorptionLines creation by @riclarsson in #589
• Remove many places that "new" is used by @riclarsson in #591
• Add interface required for pyLBL by @riclarsson in #592

Full Changelog: v2.5.8...v2.5.10

ARTS 2.5.8

What's Changed

• Add aa_grid-size check to DisortCalc and DisortCalcWithARTSSurface by @m-brath in #524
• Update cmake compiler checks by @olemke in #526
• Move test to python and test that it works by @riclarsson in #527
• Some more compatibility for swap and destructors by @riclarsson in #528
• Add method to ignore lbl_checkedCalc line mixing check by @riclarsson in #529
• Can now pickle simple agendas by @riclarsson in #530
• Use snprintf. Use std::array instead of char array. by @olemke in #531
• PPath bugfix by @m-brath in #532
• Port mpm89 by @riclarsson in #534
• Remove Wigner warning by @riclarsson in #537
• Rem legacy cont by @riclarsson in #536
• Telsem atlas reading and agenda bug fixes by @olemke in #538
• Fix warning of default initializer by using it by @riclarsson in #539
• Add simple method to rescale a species by @riclarsson in #541
• Add option to compile only with O2 in Release mode by @olemke in #542
• Enable thin lto for pybind by @olemke in #544
• Stick with OSX 11 for now in CI by @olemke in #543
• Add n_za_grid check in AntennaConstantGaussian1D by @olemke in #545
• Fix some clangd; also make QuantumIdentifier mappable by @riclarsson in #549
• Make empty propmat option by @riclarsson in #548
• Remove get_absolute_path by @olemke in #550
• Throw when target is not selection and selection is not empty by @riclarsson in #551
• add tre05 and more doc tests by @riclarsson in #553
• Remove return statements by @riclarsson in #555
• Fix some cppcheck by @riclarsson in #557
• solar ref spectra in irradiance by @j-petersen in #554
• Partfun restruct by @riclarsson in #558
• Force Python 3.10 for now on macOS runners by @olemke in #560
• Partfun restruct (cont) by @riclarsson in #559
• Fix auto_partfun.h not found by @olemke in #562
• Replace return with asserts in pytest by @olemke in #564
• Fix netcdf type for Index by @olemke in #565
• More NetCDF fixes by @olemke in #566
• Optional variadic macros by @riclarsson in #567
• Make Workspace() private to follow best-use practices by @riclarsson in #568
• MT CKD 4.0 Water by @riclarsson in #569
• Better development error messages by @riclarsson in #572
• Extend matpack concepts by @riclarsson in #570
• Fix memory leak caused by cyclic reference by @olemke in #574
• Make repr macro default to just output the Type by @riclarsson in #575

Full Changelog: v2.5.6...v2.5.8

ARTS 2.5.6

Pre-release for a EUMETSAT study.

ARTS 2.5.4

Pre-release for the halocarbon paper.

ARTS 2.4.0

Key features

• New improved format for line-by-line data
• Non-LTE (pure-rotational non-overlapping, and non-chemical cases)
• Dedicated methods for heating rate calculations
• Basic simulations of radars (both single and multiple scattering)
• Radio link calculations not supported in this version
• Interfaces to DISORT and RT4 scattering solvers
• Jacobian for new quantities:
• spectroscopic variables
• particle properties (approximative)
• OEM type inversions inside ARTS
• TELSEM and TESSEM surface models
• PyARTS: Python bindings for ARTS

General

• Radiative transfer code (except MC) totally revised, including:
• Higher consistency between modules
• Higher calculation efficiency
• Jacobian of atmospheric variables now fully analytical
• Absorption/LBL revised
• Support for new lineshapes
• Performance improvements
• New and extended system for defining particle size distributions
• DOIT improvements
• Optimized pressure grid
• Convergence acceleration
• Optional precalculated first-guess field
• New sensor setup for passband-type, meteorological millimeter
  instruments (sensor_responseMetMM)

Known Issues

• TestSpectroscopy fails on macOS