Future changes in the frequency of weather types over the South Atlantic Ocean: WT_data

Weather types to South Atlantic Ocean
Climate change is
expected to affect the frequency of regional atmospheric circulation patterns
and, consequently, it will result in changes in meteorological and
oceanographic conditions. Here, we present a dataset that consists of the
frequency of the main atmospheric patterns (weather types) over the South
Atlantic Ocean in the past and future. We used a reanalysis hindcast to
identify 25 weather types representing the typical synoptic conditions in the
region over the past 32 years. We verified the performance of the CMIP5 and
CMIP6 projections on describing the frequency of these main weather types over
the South Atlantic and assessed the potential changes in these frequencies in
the future. The scenarios project variations of up to 3% in the frequency of
some weather types over the 21st century. The data set and the performance
analysis presented here can be used to support future statistical analysis,
such as statistical downscaling experiments of oceanographic variables and
studies on climate variations in the South Atlantic.