Tropical cyclone(TC)genesis prediction is a major scientific challenge to the TC operation and research community.This report surveys the current status of TC genesis forecasts by a number of major operational centers...Tropical cyclone(TC)genesis prediction is a major scientific challenge to the TC operation and research community.This report surveys the current status of TC genesis forecasts by a number of major operational centers covering the key ocean basins across both hemispheres.Since IWTC-9,we see an emergence of probabilistic TC genesis forecast products by operational centers,typically supported by the statistical processing of a combination of ensemble prediction and satellite analysis,covering time periods of couple of days to weeks ahead.The prevalence of multi-center grand ensemble approach highlights the uncertainties involved and the forecast challenges in quantitative genesis prediction.While operational practice might differ across agencies,verification efforts generally report a steady or slightly improving skill level in terms of reliability,which likely results from the continual improvement in global numerical weather prediction capability.展开更多
文摘Tropical cyclone(TC)genesis prediction is a major scientific challenge to the TC operation and research community.This report surveys the current status of TC genesis forecasts by a number of major operational centers covering the key ocean basins across both hemispheres.Since IWTC-9,we see an emergence of probabilistic TC genesis forecast products by operational centers,typically supported by the statistical processing of a combination of ensemble prediction and satellite analysis,covering time periods of couple of days to weeks ahead.The prevalence of multi-center grand ensemble approach highlights the uncertainties involved and the forecast challenges in quantitative genesis prediction.While operational practice might differ across agencies,verification efforts generally report a steady or slightly improving skill level in terms of reliability,which likely results from the continual improvement in global numerical weather prediction capability.
