Meteorological behavior during the mid-summer drought in Guatemala
DOI:
https://doi.org/10.36829/63CTS.v9i2.1284Keywords:
climate change, heatwave, temperature, precipitationAbstract
The objective of this research was to explore the historical behavior of temperature, precipitation and outgoing long-wave radiation (OLR) for Guatemala, during the midsummer drought period (canícula). The methodological procedure was based on the use of the database of 38 stations of the National Institute of Seismology, Volcanology, Meteorology, and Hydrology, of Guatemala (INSIVUMEH), from the period 1971-2019. Averages were made for each region of the country; North, Caribbean, Transversal Strip, Pacific, Boca Costa, East and Altiplano. Using time series with daily temporal resolution, signals of change were evaluated, and OLR plots were made using the National Center for Environmental Prediction (NCEP) database at 2.5°x2.5° resolution. The results show that the temperature has reached in this period, finding that in some climatic regions the increase has been 1 ºC and in others 2 ºC. Likewise, it was found that the days without rain have a tendency to increase, as well as the outstanding long-wave radiation. The heat wave is a meteorological phenomenon that is being affected by climate change, and to the extent that differential heating between the Pacific and Atlantic oceans continues to be experienced, it will influence climate change for Guatemala. In conclusion, during the heat wave, there are signs of a trend toward an increase in temperature, an increase in days without rain and an increase in OLR.
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