Investigating short-term variations of some parameters during the selected typhoons in the South China Sea

Different parameters of sea surface temperature (SST), latent heat flux (LHF), sensible heat flux (SHF), sea level pressure (SLP), and precipitation rate were compared with their own related anomalies during different typhoons in the South China Sea, to determine the effect of the typhoon on the parameters. These effects were examined based on the archived data from the National Centers for Environmental Prediction and the National Center for Atmospheric Research to compute the anomaly of the parameters. The data of the typhoons obtained from the International Best Track Archive for Climate Stewardship. Two series of maps were considered, one for the first day and one for the strongest day of the typhoon occurrence. Using eyeball analysis of the maps showed the SST in the day that the typhoon had high intensity reduced relative to the first day due to cooling effect. The SLP anomaly reduction from the first day to the extreme day was obvious in all cases that could be connected to the typhoon strengthening. Furthermore, variations of LHF values between the first day and the extreme day increased, and their anomalies changed from negative values to positive values. The results also indicated a positive correlation between SHF and typhoon intensity.