@InProceedings{MarcheziKeGoMuPiSiHa:2023:EfSoWi,
               author = "Marchezi, Jos{\'e} Paulo and Keese, Amy M. and Goughlan, Michael 
                         and Mukudan, Raman and Pinto, Victor A. and Silva, Ligia Alves da 
                         and Hampton, Donald",
          affiliation = "{University of New Hampshire Main Campus} and {University of New 
                         Hampshire} and {University of New Hampshire} and {University of 
                         New Hampshire} and {Universidad de Santiago de Chile} and 
                         {Instituto Nacional de Pesquisas Espaciais (INPE)} and {University 
                         of Alaska Fairbanks}",
                title = "On the effects of the solar wind structures in the global 
                         distribution of ground-based geomagnetic perturbations during 
                         geomagnetic storms",
            booktitle = "Proceedings...",
                 year = "2023",
         organization = "AGU FAll Meeting",
            publisher = "AGU",
             abstract = "Changes in the solar wind flow, generally linked to interplanetary 
                         coronal mass ejections (ICME) or high-speed streams (HSS), are 
                         directly related to the space environment near Earth. The impact 
                         of these structures on the Earths magnetosphere perturbs the 
                         geomagnetic field. Variable geomagnetic fields give rise to 
                         measurable effects in the magnetosphere, the ionosphere, the upper 
                         atmosphere, and on the ground. Rapid changes in the geomagnetic 
                         field can lead to the generation of geomagnetically induced 
                         currents (GICs). Intense GICs can have adverse effects on 
                         technology systems, leading to power outages and damage to power 
                         grid components as well as impacting pipelines and train systems. 
                         The goal of this work is to evaluate how the characteristics of 
                         different solar wind structures (ICME and HSS) correlate with the 
                         magnetic field perturbation (dB/dt) occurrence, intensity, and 
                         location. We selected storm events based on the Sym-H index less 
                         than or equal to -50 nT. A total of 534 events were selected, 263 
                         related to ICME and 271 to HSS. To capture the variations in a 
                         broad range of latitudes, the thresholds of dB/dt were defined as 
                         200, 300, 400, and 500 nT/min in stations at geographic latitudes 
                         varying from +- 30 to +-90 degrees. The asymmetry in the 
                         distribution of dB/dt spikes according to MLT, discussed in 
                         previous work, is observed. We also observe differences in the 
                         preferential location of dB/dt with respect to storms related to 
                         HSS and ICME. Our investigation seeks to evaluate the relationship 
                         between ground level dB/dt variation and solar wind parameters 
                         including mesoscale structures of solar wind events and the 
                         periodicity of solar wind velocity and magnetic field variations. 
                         This analysis will enhance our understanding of these mechanisms 
                         and aid in the incorporation of solar wind parameters to machine 
                         learning models to improve the accuracy of forecasts of dB/dt 
                         recorded on the ground.",
  conference-location = "San Francisco, CA",
      conference-year = "11-15 Dec. 2023",
             language = "en",
        urlaccessdate = "30 abr. 2024"
}