The ECMWF re-analysis for the AMMA observational campaign
| العنوان: | The ECMWF re-analysis for the AMMA observational campaign |
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| المؤلفون: | Anton Beljaars, Anna Ghelli, Martin Köhler, Gianpaolo Balsamo, Maike Ahlgrimm, Anna Agusti-Panareda, Olivier Bock, Françoise Guichard, Remi Meynadier, Richard G. Forbes, Jean-Jacques Morcrette |
| المساهمون: | European Centre for Medium-Range Weather Forecasts (ECMWF), SPACE - LATMOS, Laboratoire Atmosphères, Milieux, Observations Spatiales (LATMOS), Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS), Groupe d'étude de l'atmosphère météorologique (CNRM-GAME), Institut national des sciences de l'Univers (INSU - CNRS)-Météo France-Centre National de la Recherche Scientifique (CNRS), ARM program at ECMWF, Centre national de recherches météorologiques (CNRM), Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire Midi-Pyrénées (OMP), Institut de Recherche pour le Développement (IRD)-Université Toulouse III - Paul Sabatier (UT3), Université de Toulouse (UT)-Université de Toulouse (UT)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France -Institut de Recherche pour le Développement (IRD)-Université Toulouse III - Paul Sabatier (UT3), Université de Toulouse (UT)-Université de Toulouse (UT)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France -Centre National de la Recherche Scientifique (CNRS) |
| المصدر: | Quarterly Journal of the Royal Meteorological Society Quarterly Journal of the Royal Meteorological Society, Wiley, 2010, 136 (651), pp.1457-1472. ⟨10.1002/qj.662⟩ Quarterly Journal of the Royal Meteorological Society, 2010, 136 (651), pp.1457-1472. ⟨10.1002/qj.662⟩ |
| بيانات النشر: | HAL CCSD, 2010. |
| سنة النشر: | 2010 |
| مصطلحات موضوعية: | Atmospheric Science, 010504 meteorology & atmospheric sciences, Meteorology, [SDE.MCG]Environmental Sciences/Global Changes, 0207 environmental engineering, Weather forecasting, 02 engineering and technology, ECMWF re-analysis, [SDU.STU.ME]Sciences of the Universe [physics]/Earth Sciences/Meteorology, Monsoon, computer.software_genre, 01 natural sciences, law.invention, West africa, West African monsoon, law, Water cycle, 020701 environmental engineering, 0105 earth and related environmental sciences, Radiosonde, Numerical weather prediction, 13. Climate action, [SDU.STU.CL]Sciences of the Universe [physics]/Earth Sciences/Climatology, Climatology, Energy budget, Observational study, computer |
| الوصف: | International audience; During the 2006 African Monsoon Multidisciplinary Analysis (AMMA) field experiment, an unprecedented number of soundings were performed in West Africa. However, due to technical problems many of these soundings did not reach the Global Telecommunication System and therefore they could not be included in the operational numerical weather prediction (NWP) analyses. This issue, together with the realization that there was a significant bias in the radiosonde humidity, led to the conclusion that a re-analysis effort was necessary. This re-analysis was performed at the European Centre for Medium-Range Weather Forecasts (ECMWF) spanning the wet monsoon season of 2006 from May-September. The key features of the ECMWF AMMA re-analysis are presented, including the use of a newer model version with improved physics, all the AMMA radiosonde data available from the AMMA database and a new radiosonde humidity bias-correction scheme. Data-impact experiments show that there is a benefit from these observations, but also highlight large model physics biases over the Sahel that cause a short-lived impact of the observations on the model forecast. The AMMA re-analysis is compared with independent observations to investigate the biases in the different parts of the physics. In the framework of the AMMA project, a hybrid dataset was developed to provide a best estimate of the different terms of the water cycle. This hybrid dataset is used to evaluate the improvement achieved from the use of extra AMMA observations and of a radiosonde humidity bias-correction scheme in the water cycle of the West African monsoon. Finally, future model developments that offer promising improvements in the water cycle are discussed. |
| اللغة: | English |
| تدمد: | 0035-9009 1477-870X |
| DOI: | 10.1002/qj.662⟩ |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0642b23b96f2c537c309ca35e3ef2df0 https://hal.archives-ouvertes.fr/hal-00514040 |
| Rights: | CLOSED |
| رقم الانضمام: | edsair.doi.dedup.....0642b23b96f2c537c309ca35e3ef2df0 |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 00359009 1477870X |
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| DOI: | 10.1002/qj.662⟩ |