Impacto da assimilação de dados de sondagem e radiâncias em evento de ciclogênese
DOI:
https://doi.org/10.5902/2179460X66091Keywords:
Data assimilation, WRF, CyclogenesisAbstract
An assessiment of the assimilation satelitte radiances and the atmospheric soundings impact in the WRF simulation is presented in this work. The simulation is performed during a cyclone propagation over southern Brazil, from August 20 to 23, 2020. The techinique used in this study is a Three-Dimensional Variational Data Assimilation Scheme implemented on WRF Model (3DVAR). The results show that the assimilation procedure has a higher impact on the first 48 hours of forecasting for low a medium level of the atmosphere. It was also concluded that 2-hour data assimilation window centered on the analysis time, presents a better result than larger windows. Aditional results show that errors of day matrix (B) generated by few forecasting pairs (24h -12h) presents worse results than the generic matrix provided by the WRF assimilation package. Lastly, it was show in this work that satellite data has a better impact than sounding data in the weather forecast on large scale.
Downloads
References
BARKER, D., HUANG, W., GUO, Y.R., Xiao. Q.N. A Three-Dimensional (3DVAR) Data Assimilation System For Use With MM5: Implementation and Initial Results. Monthly Weather Review, 132, 897-914, 2004.
BARKER, D., HUANG, X. -Y., LIU, Z., AULIGNÉ, T., ZHANG, X., RUGG, S., AJJAJI, R., BOURGEOIS, A., BRAY, J., CHEN, Y., DEMIRTAS, M., GUO, Y. -R., HENDERSON, T., HUANG, W., LIN, H. -C., MICHALAKES, J., RIZVI, S., ZHANG, X. The Weather Research and Forecasting Model's Community Variational/Ensemble Data Assimilation System: WRFDA. Bulletin American Meteorological Society, 93, 831–843, 2012.
COURTIER, P., ANDERSON, E., HECKLEY, W., PAILLEUX, J., VASILJEVIC, D., HAMRUD, M., HOLINGSWORTH, H., RABIER, F., FISHER, M. The European Centre for Medium-Range Weather Forecasting implementation of three-dimensional variational assimilation (3D-Var). Part 1: formulation. Quarterly Journal Royal Meteorological Society, 1783-1807, 1998.
DATA ASSIMILATION SYSTEM FOR USE WITH MM5: Implementation and Initial Results. Monthly Weather Review, 132, 897-914, 2004.
HARTER,F. P.,YAMASAKI,Y., BECK, V. C. Variational Data Assimilation in Chaotic Regime by Lorenz Model. Anuário IGEO, 38, 73-80, 2015.
HARTER, F. P., CAMPOS VELHO, H. F. New Approach to Applying Neural Network in Nonlinear Dynamic Model. Applied Mathematical Modeling, 12, 1-25, 2008.
HOLTON, J. R. An Introduction to Dynamic Meteorology. 4.ed. New York: Academic Press, 2004.
Published
How to Cite
Issue
Section
License
Copyright (c) 2021 Ciência e Natura
This work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License.
To access the DECLARATION AND TRANSFER OF COPYRIGHT AUTHOR’S DECLARATION AND COPYRIGHT LICENSE click here.
Ethical Guidelines for Journal Publication
The Ciência e Natura journal is committed to ensuring ethics in publication and quality of articles.
Conformance to standards of ethical behavior is therefore expected of all parties involved: Authors, Editors, Reviewers, and the Publisher.
In particular,
Authors: Authors should present an objective discussion of the significance of research work as well as sufficient detail and references to permit others to replicate the experiments. Fraudulent or knowingly inaccurate statements constitute unethical behavior and are unacceptable. Review Articles should also be objective, comprehensive, and accurate accounts of the state of the art. The Authors should ensure that their work is entirely original works, and if the work and/or words of others have been used, this has been appropriately acknowledged. Plagiarism in all its forms constitutes unethical publishing behavior and is unacceptable. Submitting the same manuscript to more than one journal concurrently constitutes unethical publishing behavior and is unacceptable. Authors should not submit articles describing essentially the same research to more than one journal. The corresponding Author should ensure that there is a full consensus of all Co-authors in approving the final version of the paper and its submission for publication.
Editors: Editors should evaluate manuscripts exclusively on the basis of their academic merit. An Editor must not use unpublished information in the editor's own research without the express written consent of the Author. Editors should take reasonable responsive measures when ethical complaints have been presented concerning a submitted manuscript or published paper.
Reviewers: Any manuscripts received for review must be treated as confidential documents. Privileged information or ideas obtained through peer review must be kept confidential and not used for personal advantage. Reviewers should be conducted objectively, and observations should be formulated clearly with supporting arguments, so that Authors can use them for improving the paper. Any selected Reviewer who feels unqualified to review the research reported in a manuscript or knows that its prompt review will be impossible should notify the Editor and excuse himself from the review process. Reviewers should not consider manuscripts in which they have conflicts of interest resulting from competitive, collaborative, or other relationships or connections with any of the authors, companies, or institutions connected to the papers.
