@InProceedings{LyraHGSSGQMCCFPF:2024:ExPrEv,
               author = "Lyra, Matheus and Herdies, Dirceu Luis and Gomes, Helber and 
                         Silva, Maria Cristina and Silva, Fabr{\'{\i}}cio and Gomes, 
                         Heliof{\'a}bio and Quadros, M{\'a}rio and Mantovani Antonio 
                         J{\'u}nior, Jos{\'e} and Coelho, William Ferreira and Calvetti, 
                         Leonardo and Figueroa, Silvio Nilo and Pendharkar, Jayant and 
                         Fernande Neto, Pedro",
          affiliation = "{Universidade Federal de Alagoas (UFAL)} and {Instituto Nacional 
                         de Pesquisas Espaciais (INPE)} and {Universidade Federal de 
                         Alagoas (UFAL)} and {Universidade Federal de Alagoas (UFAL)} and 
                         {Universidade Federal de Alagoas (UFAL)} and {Universidade Federal 
                         de Alagoas (UFAL)} and {Instituto Federal de Santa Catarina 
                         (IFSC)} and {Instituto Nacional de Pesquisas Espaciais (INPE)} and 
                         {Instituto Nacional de Pesquisas Espaciais (INPE)} and 
                         {Universidade Federal de Pelotas (UFPel)} and {Instituto Nacional 
                         de Pesquisas Espaciais (INPE)} and {Instituto Nacional de 
                         Pesquisas Espaciais (INPE)} and {Universidade Federal de Campina 
                         Grande (UFCG)}",
                title = "Extreme Precipitation Events in the Northeast Brazil during the 
                         winters of 2022 and 2023",
            booktitle = "Proceedings...",
                 year = "2024",
         organization = "EGU General Assemblyh",
             abstract = "This study aims to evaluate the synoptic conditions responsible 
                         for two extreme precipitation events development that occurred in 
                         the same region on the east coast of Northeast Brazil (NEB) in two 
                         different years, on July 1, 2022 (185 mm/24h), and July 7, 2023 
                         (213 mm/24h). These events are becoming increasingly frequent in 
                         all regions of Brazil, especially in areas with high population 
                         density, associated with significant material and human losses, 
                         emphasizing the significance of a deeper comprehension of these 
                         events. ERA5 global reanalysis data have been used for synoptic 
                         and vertical structure evaluation as a first analysis step. 
                         Infrared GOES-16 satellite images have been used to monitor the 
                         cloudiness development. Pluviometric stations were used to 
                         document accumulated precipitation caused by these events. The 
                         following step will consist of conducting very high-resolution 
                         simulations using the Model for Prediction Across Scales (MPAS) to 
                         assess its ability to represent the circulation patterns 
                         associated with the analyzed extreme precipitation events. Both 
                         analyzed cases occurred along the eastern coast of the NEB, 
                         specifically over the Alagoas state, and were triggered by the 
                         same synoptic-scale system, the Easterly Wave Disturbances (EWDs). 
                         The trough axis penetrating the study area was observed on both 
                         examined dates, with a very characteristic relative vorticity of 
                         this tropical disturbance. Despite satellite images in the IR 
                         channel indicating lower cloud top temperatures in the first case, 
                         thermodynamic diagram data showed a greater vertical development 
                         of cloudiness in the second case. Distinct situations were 
                         observed when analyzing moisture transport convergence fields. In 
                         the first event, moisture convergence intensified over 12 hours, 
                         while in the second event, moisture convergence over Alagoas was 
                         evident throughout the entire day. This variation can be 
                         attributed to the intensification of the subtropical anticyclone 
                         during the extreme precipitation event in July 2023, which 
                         intensified moisture transport in the region. In general, moisture 
                         convergence resulted from the high flow of moisture prevailing 
                         over the region combined with upward movements caused by the 
                         trough present at low levels, which combined with local factors in 
                         the region such as topography, contributed to the increase in 
                         rainfall over the study area in both analyzed cases.",
  conference-location = "Vienna, Austria",
      conference-year = "14-19 Apr. 2024",
                  doi = "10.5194/egusphere-egu24-12954",
                  url = "http://dx.doi.org/10.5194/egusphere-egu24-12954",
             language = "en",
        urlaccessdate = "05 maio 2024"
}