{"title":"Advances in polarization imaging: Techniques and instrumentation","authors":"Vipin Tiwari","doi":"10.1016/j.jqsrt.2025.109427","DOIUrl":"10.1016/j.jqsrt.2025.109427","url":null,"abstract":"<div><div>Polarization imaging has drawn significant attention from the research fraternity for decades due to its prominent imaging capabilities across multidisciplinary fields. Polarization imaging is based on the study of vectorial properties of light and associated vectorial transformations resulting from light-matter interaction. The range of polarization imaging and its applications is so broad that it is very challenging to accommodate all relevant concepts and applications in a single literature. This review article is an attempt in this direction. This paper presents a concise review of polarization imaging from fundamental to advanced level, covering the essential elements, such as historical development, theoretical concepts, and experimental aspects of polarization imaging, followed by a brief introduction to traditional and modern polarization imaging instruments. This review article aims to provide a reference text for readers from various research backgrounds interested in polarization imaging.</div></div>","PeriodicalId":16935,"journal":{"name":"Journal of Quantitative Spectroscopy & Radiative Transfer","volume":"338 ","pages":"Article 109427"},"PeriodicalIF":2.3,"publicationDate":"2025-03-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143629433","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Constrained optimization of sensor locations for existing light-pollution monitoring networks","authors":"Rodrigo Lopez-Farias , S. Ivvan Valdez , Jorge Paredes-Tavares , Hector Lamphar","doi":"10.1016/j.jqsrt.2025.109396","DOIUrl":"10.1016/j.jqsrt.2025.109396","url":null,"abstract":"<div><div>The high levels of nocturnal artificial light emissions from urban areas induce adverse effects on the environment and human health. Having adequate monitoring provides information for planning public policies and measuring their degree of achievement. Consequently, there is a need for optimal designing or redesigning of Light-Pollution Monitoring Networks focused on sensing the most impacting regions such as protected natural areas, and delivering representative measurements of the whole region of interest. This article addresses the optimum redesign and improvement of existing monitoring networks constrained to relocating a limited number of sensors. Furthermore, we introduce metrics to evaluate the covering region of a network and its accuracy for recovering artificial light emission levels of the whole area. Then, we find the sensor locations that maximize such metrics and, consequently, the monitoring performance. Our results are novel designs that use punctual measurements to estimate light levels of the whole region of interest for different numbers of sensors. Finally, the method, metrics, and a study case provide clear guidelines for the re-design of monitoring networks regarding sensitive zones for health, urban, or ecological planning, as well as the intensity of light emissions and existing monitoring networks.</div></div>","PeriodicalId":16935,"journal":{"name":"Journal of Quantitative Spectroscopy & Radiative Transfer","volume":"338 ","pages":"Article 109396"},"PeriodicalIF":2.3,"publicationDate":"2025-03-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143629434","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"The Landé g-factors for the 1s22s22p1/2 and 1s22s22p3/2 states of middle-Z B-like ions: Importance from negative energy states","authors":"Ji-Min Wang , Yong-Zhi Zhang , Yong-Bo Tang","doi":"10.1016/j.jqsrt.2025.109413","DOIUrl":"10.1016/j.jqsrt.2025.109413","url":null,"abstract":"<div><div>In this work, we calculate the Landé g-factors for the <span><math><mrow><mn>1</mn><msup><mrow><mi>s</mi></mrow><mrow><mn>2</mn></mrow></msup><mn>2</mn><msup><mrow><mi>s</mi></mrow><mrow><mn>2</mn></mrow></msup></mrow></math></span> <span><math><mrow><mn>2</mn><msub><mrow><mi>p</mi></mrow><mrow><mn>1</mn><mo>/</mo><mn>2</mn></mrow></msub></mrow></math></span> and <span><math><mrow><mn>1</mn><msup><mrow><mi>s</mi></mrow><mrow><mn>2</mn></mrow></msup><mn>2</mn><msup><mrow><mi>s</mi></mrow><mrow><mn>2</mn></mrow></msup></mrow></math></span> <span><math><mrow><mn>2</mn><msub><mrow><mi>p</mi></mrow><mrow><mn>3</mn><mo>/</mo><mn>2</mn></mrow></msub></mrow></math></span> states in B-like systems with nuclear charges <span><math><mi>Z</mi></math></span> ranging from 10 to 20. Our method starts with the Dirac–Coulomb–Breit Hamiltonian, incorporating electron correlation effects from both negative-energy and positive-energy states using third-order many-body perturbation theory, and including leading-order quantum electrodynamics (QED) corrections through an approximate method. A key aspect of this research is to elucidate the role played by negative-energy states in determining Landé g-factors for B-like ions. Our findings reveal that negative-energy states are crucial for accurately evaluating the Landé g-factors for these states. The contributions from negative-energy states and positive-energy states are of similar magnitude but with opposite signs, resulting in a significant cancellation. The accuracy of our calculations is verified by comparing our results with available experimental results, showing good agreement. This work may serve as a valuable reference for future precise calculations of Landé g-factors in heavy atomic systems.</div></div>","PeriodicalId":16935,"journal":{"name":"Journal of Quantitative Spectroscopy & Radiative Transfer","volume":"338 ","pages":"Article 109413"},"PeriodicalIF":2.3,"publicationDate":"2025-03-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143620113","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Quantifying shortwave radiative forcing and heating rates of UTLS aerosols in the Asian summer monsoon anticyclone region","authors":"V.N. Santhosh, B.L. Madhavan, M. Venkat Ratnam","doi":"10.1016/j.jqsrt.2025.109430","DOIUrl":"10.1016/j.jqsrt.2025.109430","url":null,"abstract":"<div><div>This study quantifies the shortwave (SW) direct radiative forcing and heating rates associated with the monsoonal aerosol enhancements in the upper troposphere and lower stratosphere (UTLS) over a broad spatial domain (25°N to 37.5°N and 40°E to 95°E) within the Asian summer monsoon anticyclone (ASMA) region. Using satellites and reanalysis data, we examine three dominant aerosol scenarios—sulfate, nitrate, and anthropogenic aerosols—and demonstrate that these enhancements induce a cooling at the top of the atmosphere (TOA), with radiative forcing estimates ranging from −0.13 to −0.19 Wm<sup>-2</sup>. Our analysis reveals increased upwelling SW fluxes at the TOA during the monsoon, with forcings reaching −0.2 Wm<sup>-2</sup> relative to winter conditions. While both scattering aerosols (sulfates and nitrates) and absorbing aerosols (anthropogenic) contribute to TOA cooling, the magnitude of cooling from anthropogenic aerosols is comparatively smaller. Within the UTLS column (12–20 km), heating rates peak at 0.04 K day<sup>-1</sup> for anthropogenic aerosols, while those associated with sulfate and nitrate aerosols remain significantly lower. Additionally, the study identifies key atmospheric changes during the monsoon, including elevated water vapor concentrations, reduced temperatures, and deceased ozone levels, both spatially and vertically, across the study domain. These findings underscore the critical role of Asian tropopause aerosols in shaping the regional radiation budget, emphasizing the need for their inclusion in future climate model assessments.</div></div>","PeriodicalId":16935,"journal":{"name":"Journal of Quantitative Spectroscopy & Radiative Transfer","volume":"339 ","pages":"Article 109430"},"PeriodicalIF":2.3,"publicationDate":"2025-03-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143683785","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
R. Dodangodage , P.F. Bernath , C. Boone , M. Lecours , M. Schmidt
{"title":"HFC-23 from updated Atmospheric Chemistry Experiment Fourier transform spectrometer (ACE-FTS) retrievals","authors":"R. Dodangodage , P.F. Bernath , C. Boone , M. Lecours , M. Schmidt","doi":"10.1016/j.jqsrt.2025.109416","DOIUrl":"10.1016/j.jqsrt.2025.109416","url":null,"abstract":"<div><div>HFC-23 (CHF<span><math><msub><mrow></mrow><mrow><mn>3</mn></mrow></msub></math></span>) retrievals from the Atmospheric Chemistry Experiment Fourier transform spectrometer (ACE-FTS) have been improved. The volume mixing ratio (VMR) values in the recent update (v6) have increased compared to the previous ACE version 5.2 retrievals, and the relative uncertainties have decreased. The HFC-23 VMR time series has been calculated and compared with Advanced Global Atmospheric Gases Experiment (AGAGE) ground-based measurements, and the agreement has been improved in this new version. ACE data show that HFC-23 has increased at a rate of 1.03 ppt/year in recent years spanning 2012–2024.</div></div>","PeriodicalId":16935,"journal":{"name":"Journal of Quantitative Spectroscopy & Radiative Transfer","volume":"338 ","pages":"Article 109416"},"PeriodicalIF":2.3,"publicationDate":"2025-03-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143620116","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
R.C. Bergmayr , L.H. Scarlett , D. Wünderlich , D.V. Fursa , M.C. Zammit , I. Bray , U. Fantz
{"title":"A fully ro-vibrationally resolved corona model for the molecular hydrogen Fulcher-α system","authors":"R.C. Bergmayr , L.H. Scarlett , D. Wünderlich , D.V. Fursa , M.C. Zammit , I. Bray , U. Fantz","doi":"10.1016/j.jqsrt.2025.109414","DOIUrl":"10.1016/j.jqsrt.2025.109414","url":null,"abstract":"<div><div>A ro-vibrationally resolved corona model for the molecular hydrogen Fulcher-<span><math><mi>α</mi></math></span> transition based on the Yacora solver is introduced. The model couples 1365 ro-vibrational levels of the <span><math><mrow><msup><mrow><mi>X</mi></mrow><mrow><mn>1</mn></mrow></msup><msubsup><mrow><mi>Σ</mi></mrow><mrow><mi>g</mi></mrow><mrow><mo>+</mo></mrow></msubsup></mrow></math></span>, <span><math><mrow><msup><mrow><mi>d</mi></mrow><mrow><mn>3</mn></mrow></msup><msub><mrow><mi>Π</mi></mrow><mrow><mi>u</mi></mrow></msub></mrow></math></span> and <span><math><mrow><msup><mrow><mi>a</mi></mrow><mrow><mn>3</mn></mrow></msup><msubsup><mrow><mi>Σ</mi></mrow><mrow><mi>g</mi></mrow><mrow><mo>+</mo></mrow></msubsup></mrow></math></span> states via electron impact excitation from the ground state into the <span><math><mrow><msup><mrow><mi>d</mi></mrow><mrow><mn>3</mn></mrow></msup><msub><mrow><mi>Π</mi></mrow><mrow><mi>u</mi></mrow></msub></mrow></math></span> state and subsequent spontaneous emission into the <span><math><mrow><msup><mrow><mi>a</mi></mrow><mrow><mn>3</mn></mrow></msup><msubsup><mrow><mi>Σ</mi></mrow><mrow><mi>g</mi></mrow><mrow><mo>+</mo></mrow></msubsup></mrow></math></span> state. For the process of electron impact excitation a set of 45260 fully ro-vibrationally resolved cross sections calculated with the molecular convergent close-coupling (MCCC) method in the adiabatic-nuclei formulation is applied. The MCCC cross sections are compared with results of a scaling method used in other works, demonstrating the need for dedicated ro-vibrationally resolved cross sections. By post-processing the model output, entire Fulcher spectra can be simulated. These spectra are benchmarked with measurements from an inductively coupled plasma discharge at a pressure between 1.1–10<span><math><mspace></mspace></math></span>Pa and a RF power of 700<span><math><mspace></mspace></math></span>W. The model results agree very well with the experiment both in relative shape and in absolute value. A non-ro-vibrationally resolved, purely electronically resolved collisional radiative model for molecular hydrogen (including further states and reaction channels) is applied to investigate the validity of the corona approximation for the benchmark plasmas and the relevance of possible process extensions of the corona model. Furthermore, the influence of collisional quenching, autoionization and predissociation is discussed.</div></div>","PeriodicalId":16935,"journal":{"name":"Journal of Quantitative Spectroscopy & Radiative Transfer","volume":"338 ","pages":"Article 109414"},"PeriodicalIF":2.3,"publicationDate":"2025-03-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143620114","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Apoorva Upadhyay , Tibor Furtenbacher , Armando N. Perri , Charles A. Bowesman , Eamon K. Conway , Katy L. Chubb , Alec Owens , Caitlin P. Dobney , Ella Bowen , Daniel Broner , Victor Ciobanu , Katherina Gelborova , Sam Livsey , Damilola Magbagbeola , Madhushree Manjunatha , Tom Mitchell , David Morohunfola , Emaan Wijayakoon , Sophie Winter , Jonathan Tennyson
{"title":"MARVEL analysis of high-resolution spectra of ozone (16O3)","authors":"Apoorva Upadhyay , Tibor Furtenbacher , Armando N. Perri , Charles A. Bowesman , Eamon K. Conway , Katy L. Chubb , Alec Owens , Caitlin P. Dobney , Ella Bowen , Daniel Broner , Victor Ciobanu , Katherina Gelborova , Sam Livsey , Damilola Magbagbeola , Madhushree Manjunatha , Tom Mitchell , David Morohunfola , Emaan Wijayakoon , Sophie Winter , Jonathan Tennyson","doi":"10.1016/j.jqsrt.2025.109399","DOIUrl":"10.1016/j.jqsrt.2025.109399","url":null,"abstract":"<div><div>Accurate rotation-vibration (ro-vibrational) energy levels of the main isotopologue of ozone (<sup>16</sup>O<sub>3</sub>) in its ground electronic <span><math><mrow><mover><mrow><mi>X</mi></mrow><mrow><mo>̃</mo></mrow></mover><msup><mrow><mspace></mspace></mrow><mrow><mn>1</mn></mrow></msup><msub><mrow><mi>A</mi></mrow><mrow><mn>1</mn></mrow></msub></mrow></math></span> state are determined by performing MARVEL (Measured Active Rotation Vibration Energy Levels) analysis on measured line positions from 29 sources of data published in scientific literature. A total of 50276 ro-vibrational transitions are considered yielding 13664 MARVEL energy levels of <sup>16</sup>O<sub>3</sub> with their associated uncertainties. The maximum values of the energy and rotational angular momentum quantum number in the MARVEL dataset are 8167.33 cm<sup>−1</sup> and <span><math><mrow><mi>J</mi><mo>=</mo><mn>67</mn></mrow></math></span> respectively. Variational nuclear motion calculations of <sup>16</sup>O<sub>3</sub> energy levels are performed and subsequently used to assess and validate the MARVEL results. Comparisons with alternative data compilations based on effective Hamiltonians are also shown.</div></div>","PeriodicalId":16935,"journal":{"name":"Journal of Quantitative Spectroscopy & Radiative Transfer","volume":"338 ","pages":"Article 109399"},"PeriodicalIF":2.3,"publicationDate":"2025-03-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143620115","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"A modified recursive transfer matrix algorithm for radiation and scattering computation of a multilayered sphere","authors":"Jianing Zhang","doi":"10.1016/j.jqsrt.2025.109401","DOIUrl":"10.1016/j.jqsrt.2025.109401","url":null,"abstract":"<div><div>We discuss the electromagnetic scattering and radiation problems of multilayered spheres, reviewing the history of the Lorentz–Mie theory and the numerical stability issues encountered in handling multilayered spheres. By combining recursive methods with the transfer matrix method, we propose a modified transfer matrix algorithm designed for the stable and efficient calculation of electromagnetic scattering coefficients of multilayered spheres. The new algorithm simplifies the recursive formulas by introducing Debye potentials and logarithmic derivatives, effectively avoiding numerical overflow issues associated with Bessel functions under large complex variables. Moreover, by adopting a hybrid recursive strategy, this algorithm can resolve the singularity problem associated with logarithmic derivatives in previous algorithms. Numerical test results demonstrate that this algorithm offers superior stability and applicability when dealing with complex cases such as thin shells and strongly absorbing media.</div></div>","PeriodicalId":16935,"journal":{"name":"Journal of Quantitative Spectroscopy & Radiative Transfer","volume":"338 ","pages":"Article 109401"},"PeriodicalIF":2.3,"publicationDate":"2025-03-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143593440","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Xinchuan Huang , Iouli E. Gordon , Thibault Bertin , David W. Schwenke , Timothy J. Lee
{"title":"Accurate potential energy surface, dipole moment surface, and IR line lists for OCS isotopologues up to 2000 K","authors":"Xinchuan Huang , Iouli E. Gordon , Thibault Bertin , David W. Schwenke , Timothy J. Lee","doi":"10.1016/j.jqsrt.2025.109425","DOIUrl":"10.1016/j.jqsrt.2025.109425","url":null,"abstract":"<div><div>We report high-quality IR line lists of carbonyl sulfide (OCS) computed using an <em>ab initio</em> potential energy surface (PES) refined with selected energy levels from HITRAN2020 and experimental energies for highly excited vibrational states, and CCSD(T)/aug-cc-pV(T/Q/5+d)Z dipole moment surfaces (DMS). With PES accuracy σ<sub>rms</sub> < 0.01 cm<sup>-1</sup> for <sup>16</sup>O<sup>12</sup>C<sup>32</sup>S levels and DMS fitting σ<sub>rms</sub> = 1.3×10<sup>–7</sup> au for potential energy < 15,000 cm<sup>-1</sup>, room-temperature IR line lists are generated for 12 OCS isotopologues in the 0–15,000 cm<sup>-1</sup> range with S<sub>296K</sub> > 10<sup>–31</sup> cm<sup>-1</sup>/molecule.cm<sup>-2</sup>, then combined into a composite line list of 9 million transitions, denoted Ames-296K. For high-temperature applications, an Ames-2000K OCS line list is constructed in the same range, including 7 OCS isotopologues, with J ≤ 240 and <em>E</em>' ≤ 23,000 cm<sup>-1</sup> for <sup>16</sup>O<sup>12</sup>C<sup>32/34</sup>S. The Ames line lists are compared to HITRAN, CDMS, JPL(2010) near-IR line list, ExoMol line list for <sup>16</sup>O<sup>12</sup>C<sup>32</sup>S, and high-resolution experimental IR studies. Data issues and discrepancies are identified and discussed. The accuracy of energy levels and line positions in the Ames line lists have been further enhanced using reliable experimental-based effective Hamiltonian (EH) models from HITRAN, or more consistent 0th-2nd order adjustments derived from the band-by-band comparisons between E<sub>Ames</sub> and E<sub>MARVEL</sub>, E<sub>CDMS</sub>, and experimental data and models. We demonstrate the reliability and consistency of theoretical calculations may be utilized to determine more consistent empirical line positions, compared to direct MARVELization. The Ames-296K line list is evaluated against Pacific Northwest National Laboratory experimental cross sections, showing widespread improvements over HITRAN and ExoMol line lists in the range of 600–6500 cm<sup>-1</sup>. The Ames line lists with empirically corrected line positions will provide accurate, reliable, and more complete IR predictions to facilitate OCS spectra analysis and modeling in atmospheric and exoplanetary studies. The PES, DMS, and line list files are available online to public.</div></div>","PeriodicalId":16935,"journal":{"name":"Journal of Quantitative Spectroscopy & Radiative Transfer","volume":"339 ","pages":"Article 109425"},"PeriodicalIF":2.3,"publicationDate":"2025-03-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143644658","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
O.N. Ulenikov , O.V. Gromova , E.S. Bekhtereva , N.I. Nikolaeva , C. Sydow , S. Bauerecker
{"title":"Extended high resolution study of 28SiH4 in the region of the octad stretching–bending bands","authors":"O.N. Ulenikov , O.V. Gromova , E.S. Bekhtereva , N.I. Nikolaeva , C. Sydow , S. Bauerecker","doi":"10.1016/j.jqsrt.2025.109402","DOIUrl":"10.1016/j.jqsrt.2025.109402","url":null,"abstract":"<div><div>The infrared spectra of <!--> <sup>28</sup>SiH<span><math><msub><mrow></mrow><mrow><mn>4</mn></mrow></msub></math></span> were measured at varied experimental conditions with a Bruker Fourier transform infrared spectrometer IFS125HR and analyzed in the 2800–3400 cm<sup>−1</sup> region where eight sub-bands of the four stretching–bending bands of the octad are located. The 5670 transitions (<span><math><mrow><msup><mrow><mi>J</mi></mrow><mrow><mtext>max</mtext></mrow></msup><mo>=</mo><mn>27</mn></mrow></math></span>) belonging to these sub-bands were assigned (which is 5.5 times higher in comparison with the amount of corresponding data known from the literature) in the recorded experimental spectra and theoretically reproduced by a set of 130 parameters (band centers, rotational, centrifugal distortion, tetrahedral splitting and resonance interaction parameters) obtained from the weighted fit with the <span><math><msub><mrow><mi>d</mi></mrow><mrow><mtext>rms</mtext></mrow></msub></math></span> deviation of <span><math><mrow><mn>4</mn><mo>.</mo><mn>7</mn><mo>×</mo><mn>1</mn><msup><mrow><mn>0</mn></mrow><mrow><mo>−</mo><mn>4</mn></mrow></msup></mrow></math></span> cm<sup>−1</sup>. A list of assigned experimental transitions is presented as the Supplementary data to this paper.</div></div>","PeriodicalId":16935,"journal":{"name":"Journal of Quantitative Spectroscopy & Radiative Transfer","volume":"338 ","pages":"Article 109402"},"PeriodicalIF":2.3,"publicationDate":"2025-03-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143593439","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}