Total Totals Index

Usage

Total_Totals(td850, ta850, ta500)

Arguments

td850: dew point temperature [lon, lat, time] at 850 hPa (K).
ta850: air temperature [lon, lat, time] at 850 hPa (K).
ta500: air temperature [lon, lat, time] at 500 hPa (K).

Value

the computed total totals index [lon, lat, time] (K).

References

Miller, R.C., 1967. Notes on analysis and severe storm forecasting procedures of the Military Weather Warning Center. Tech. Rep. 200, AWS, U.S. Air Force. 94 pp. [Headquarters, AWS, Scott AFB, IL 62225].

Examples

data("ERA5_pl")
hus <- ERA5_pl$hus
ta <- ERA5_pl$ta
hus_d <- dim(hus)
pa <- ERA5_pl$plev / 100 # convert to hPa
l500 <- which(pa == 500)
l850 <- which(pa == 850)
pa <- convert_plev_to_array(pa, hus_d)
td <- td_from_hus(hus, pa, nthreads = 1)

res <- Total_Totals(
  td[, , l850, ],
  ta[, , l850, ],
  ta[, , l500, ]
)