Quantifying Transition Zone Radiative Effects in Longwave Radiation Parameterizations
| العنوان: | Quantifying Transition Zone Radiative Effects in Longwave Radiation Parameterizations |
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| المؤلفون: | Babak Jahani, Josep-Abel González, Josep Calbó |
| المساهمون: | Ministerio de Economía y Competitividad (Espanya) |
| المصدر: | Geophysical Research Letters, 2020, vol. 47, núm. 22, p. e2020GL090408 Articles publicats (D-F) Jahani, Babak Calbó Angrill, Josep González Gutiérrez, Josep Abel 2020 Quantifying Transition Zone Radiative Effects in Longwave Radiation Parameterizations Geophysical Research Letters 47 22 e2020GL090408 DUGiDocs – Universitat de Girona instname |
| بيانات النشر: | American Geophysical Union (AGU), 2020. |
| سنة النشر: | 2020 |
| مصطلحات موضوعية: | Radiació atmosfèrica, Aerosols radioactius, Longwave radiation, Atmospheric sciences, Aerosol, Radiative effect, Geophysics, Transition zone, Radiació -- Mesurament, Radiative transfer, Radiation -- Measurement, General Earth and Planetary Sciences, Environmental science, Atmospheric radiation, Aerosols, Radioactive |
| الوصف: | The change in the state of sky from cloudy to cloudless (or vice versa) comprises an additional phase called 'transition zone,' in which the characteristics of the particle suspension lay between those corresponding to pure clouds and atmospheric aerosols. This phase, however, is usually considered, in atmospheric monitoring and modeling, as an area containing either aerosol or thin clouds. A sensitivity analysis has been performed to assess the longwave radiative effects resulting from different approximations to the transition zone for three radiation parameterizations included in the Weather Research and Forecasting Model. The parameterizations produce important differences (up to 60 W m−2) between radiative effects of optically thin layers of aerosols and clouds (as surrogates for transition zone suspensions) in the longwave region, both at the top and bottom of the atmosphere. Also, differences are greater if the suspension of particles is located at higher altitudes, but smaller in high humidity conditions This study is funded by the Spanish Ministry of Economy and Competitiveness (project NUBESOL, CGL2014‐55976‐R), Spanish Ministry of Science and Innovation (project NUBESOL‐2, PID2019‐105901RB‐I00), and University of Girona (project PONTUdG2019/05). Babak Jahani holds a FI‐AGAUR PhD grant (2018FI_B_00830) provided by the Government of Catalonia (Universities and Research Secretariat) and the European Union |
| وصف الملف: | application/pdf |
| تدمد: | 1944-8007 0094-8276 |
| DOI: | 10.1029/2020gl090408 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8550f5b53c9e04c3a1480538c3b2044e https://doi.org/10.1029/2020gl090408 |
| Rights: | OPEN |
| رقم الانضمام: | edsair.doi.dedup.....8550f5b53c9e04c3a1480538c3b2044e |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 19448007 00948276 |
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| DOI: | 10.1029/2020gl090408 |