Sistemas convectivos de Mesosescala associados a eventos extremos de precipitação sobre o semiárido do Nordeste do Brasil
This work presents a study of the physical and morphological characteristics of the Mesoscale Convective Systems (MCS) that occurred between 2010 and 2011 on the semi-arid region of Northeast Brazil in situations of rainfall weak (WRE) and intense (HRE). For this, Geostationary Operational Environme...
Na minha lista:
| Principais autores: | , , , |
|---|---|
| Formato: | article |
| Idioma: | pt_BR |
| Publicado em: |
Anuário do Instituto de Geociências - UFRJ
|
| Assuntos: | |
| Endereço do item: | https://repositorio.ufrn.br/jspui/handle/123456789/30005 |
| Tags: |
Adicionar Tag
Sem tags, seja o primeiro a adicionar uma tag!
|
| id |
ri-123456789-30005 |
|---|---|
| record_format |
dspace |
| spelling |
ri-123456789-300052020-09-13T07:57:25Z Sistemas convectivos de Mesosescala associados a eventos extremos de precipitação sobre o semiárido do Nordeste do Brasil Mesoscale convective systems associated to extreme rainfall events on Brazil Northeast Semiarid Costa, Micejane da Silva Lima, Kellen Carla Gonçalves, Weber Andrade Mattos, Enrique Vieira Fortracc Quantis Mesoescala This work presents a study of the physical and morphological characteristics of the Mesoscale Convective Systems (MCS) that occurred between 2010 and 2011 on the semi-arid region of Northeast Brazil in situations of rainfall weak (WRE) and intense (HRE). For this, Geostationary Operational Environmental Satellite (GOES-12) satellite images were used in the infrared channel, obtained every 30 minutes. These data were used by the Forecasting and Tracking the Evolution of Cloud Clusters (ForTraCC) to identify, track and determine the characteristics of MCS. In addition, daily rainfall data, provided by the National Water Agency and by the National Institute of Meteorology were used to identify extreme events by quantiles analysis. The results showed that HRE were more frequent WRE, especially in March. Both MCS related to WRE and HRE presented, in their majority, irregular type format. The mean temperatures at the top of the cloud were similar (-52°C), but the minimum temperatures at the top of the MCS had higher occurrences in the warmer months, with a value of -79°C. The MCS related to HRE presented larger sizes. From these results it is possible to affirm that MCS acting on the Brazil Northeast Semiarid present intense vertical development, possibly favored by the presence of one or more atmospheric systems acting at the same time Este trabalho apresenta um estudo das características físicas e morfológicas dos Sistemas Convectivos de Mesoescala (SCM) que ocorreram entre os anos de 2010 e 2011 sobre a região Semiárida do Nordeste do Brasil em situações de eventos de precipitação fraca (EPF) e intensa (EPI). Para tanto, foram utilizadas imagens do satélite Geostationary Operational Environmental Satellite (GOES-12) no canal infravermelho, obtidas a cada 30 minutos, dados esses utilizados pelo Forecasting and Tracking the Evolution of Cloud Clusters (10,7 µm) para identificar, rastrear e determinar as características dos SCM. Além disso, foram utilizados dados de precipitação diária, fornecidos pela Agência Nacional de Águas (ANA) e pelo Instituto Nacional de Meteorologia (INMET) para identificação dos eventos extremos, por meio da técnica dos quantis. Os resultados mostraram que os EPI foram mais frequentes que EPF, principalmente no mês de março. Ambos SCM relacionados à EPF e EPI, apresentaram, em sua maioria, formato do tipo irregular. As temperaturas médias do topo da nuvem foram semelhantes (-52ºC), porém as temperaturas mínimas do topo dos SCM tiveram maiores ocorrências nos meses mais quentes, com valor de -79ºC. Os SCM relacionados aos EPI apresentaram maiores tamanhos. A partir desses resultados evidencia-se que os SCM atuantes sobre o Semiárido do Nordeste do Brasil possuem desenvolvimento vertical intenso, possivelmente favorecido pela presença de um ou mais sistemas atmosféricos atuando simultaneamente 2020-09-10T15:09:36Z 2020-09-10T15:09:36Z 2019-01 article COSTA, M. S.; LIMA, K. C.; GONÇALVES, W. A.; MATTOS, E. V.. Mesoscale conevctive sytems associated to extreme rainfall events on Brazil Northeast Semiarid. Anuário do Instituto de Geociências - UFRJ, [s.l.], v. 42, n. 1, p. 317-328, 25 mar. 2019. Disponível em: https://revistas.ufrj.br/index.php/aigeo/article/view/30449. Acesso em: 10 ago. 2020. http://dx.doi.org/10.11137/2019_1_317_328 0101-9759 https://repositorio.ufrn.br/jspui/handle/123456789/30005 10.11137/2019_1_317_328 pt_BR Attribution 3.0 Brazil http://creativecommons.org/licenses/by/3.0/br/ application/pdf Anuário do Instituto de Geociências - UFRJ |
| institution |
Repositório Institucional |
| collection |
RI - UFRN |
| language |
pt_BR |
| topic |
Fortracc Quantis Mesoescala |
| spellingShingle |
Fortracc Quantis Mesoescala Costa, Micejane da Silva Lima, Kellen Carla Gonçalves, Weber Andrade Mattos, Enrique Vieira Sistemas convectivos de Mesosescala associados a eventos extremos de precipitação sobre o semiárido do Nordeste do Brasil |
| description |
This work presents a study of the physical and morphological characteristics of the Mesoscale Convective Systems (MCS) that occurred between 2010 and 2011 on the semi-arid region of Northeast Brazil in situations of rainfall weak (WRE) and intense (HRE). For this, Geostationary Operational Environmental Satellite (GOES-12) satellite images were used in the infrared channel, obtained every 30 minutes. These data were used by the Forecasting and Tracking the Evolution of Cloud Clusters (ForTraCC) to identify, track and determine the characteristics of MCS. In addition, daily rainfall data, provided by the National Water Agency and by the National Institute of Meteorology were used to identify extreme events by quantiles analysis. The results showed that HRE were more frequent WRE, especially in March. Both MCS related to WRE and HRE presented, in their majority, irregular type format. The mean temperatures at the top of the cloud were similar (-52°C), but the minimum temperatures at the top of the MCS had higher occurrences in the warmer months, with a value of -79°C. The MCS related to HRE presented larger sizes. From these results it is possible to affirm that MCS acting on the Brazil Northeast Semiarid present intense vertical development, possibly
favored by the presence of one or more atmospheric systems acting at the same time |
| format |
article |
| author |
Costa, Micejane da Silva Lima, Kellen Carla Gonçalves, Weber Andrade Mattos, Enrique Vieira |
| author_facet |
Costa, Micejane da Silva Lima, Kellen Carla Gonçalves, Weber Andrade Mattos, Enrique Vieira |
| author_sort |
Costa, Micejane da Silva |
| title |
Sistemas convectivos de Mesosescala associados a eventos extremos de precipitação sobre o semiárido do Nordeste do Brasil |
| title_short |
Sistemas convectivos de Mesosescala associados a eventos extremos de precipitação sobre o semiárido do Nordeste do Brasil |
| title_full |
Sistemas convectivos de Mesosescala associados a eventos extremos de precipitação sobre o semiárido do Nordeste do Brasil |
| title_fullStr |
Sistemas convectivos de Mesosescala associados a eventos extremos de precipitação sobre o semiárido do Nordeste do Brasil |
| title_full_unstemmed |
Sistemas convectivos de Mesosescala associados a eventos extremos de precipitação sobre o semiárido do Nordeste do Brasil |
| title_sort |
sistemas convectivos de mesosescala associados a eventos extremos de precipitação sobre o semiárido do nordeste do brasil |
| publisher |
Anuário do Instituto de Geociências - UFRJ |
| publishDate |
2020 |
| url |
https://repositorio.ufrn.br/jspui/handle/123456789/30005 |
| work_keys_str_mv |
AT costamicejanedasilva sistemasconvectivosdemesosescalaassociadosaeventosextremosdeprecipitacaosobreosemiaridodonordestedobrasil AT limakellencarla sistemasconvectivosdemesosescalaassociadosaeventosextremosdeprecipitacaosobreosemiaridodonordestedobrasil AT goncalvesweberandrade sistemasconvectivosdemesosescalaassociadosaeventosextremosdeprecipitacaosobreosemiaridodonordestedobrasil AT mattosenriquevieira sistemasconvectivosdemesosescalaassociadosaeventosextremosdeprecipitacaosobreosemiaridodonordestedobrasil AT costamicejanedasilva mesoscaleconvectivesystemsassociatedtoextremerainfalleventsonbrazilnortheastsemiarid AT limakellencarla mesoscaleconvectivesystemsassociatedtoextremerainfalleventsonbrazilnortheastsemiarid AT goncalvesweberandrade mesoscaleconvectivesystemsassociatedtoextremerainfalleventsonbrazilnortheastsemiarid AT mattosenriquevieira mesoscaleconvectivesystemsassociatedtoextremerainfalleventsonbrazilnortheastsemiarid |
| _version_ |
1773966268906340352 |