The Implementation of a National Network of HEAT/HEALTH Warning Systems in the Republic of Korea

Abstract

O-31C9-1 Background/Aims: During the last several years, a collaborative effort has been underway to develop and implement urban area heat health warning systems (HHWS) to warn the citizens of the Republic of Korea when conditions are dangerous to personal health because of excessive heat. These systems are unique because the triggers to call the warnings are based on human health response as expressed by increasing numbers of deaths attributed to heat. At present, 6 systems in large urban areas are in operation, with plans to nationalize the system over the next 2 years. In addition, extensive system evaluation is planned, and sophisticated intervention techniques are being considered. Methods: The first step in system development is the creation of a daily air mass calendar for each locale utilizing a spatial synoptic classification. “Offensive” air masses, with historically high mortality rates, are isolated, and algorithms are developed to determine which variables within these air masses explain the greatest variations in mortality (eg, consecutive days of oppressive heat, maximum temperature, time of season). Results: A password-protected website is then created to be used by forecasters at the Korea Meteorological Administration as guidance to call excessive heat warnings. The impact of heat varies considerably across space, even in a small country like Korea, so each urban area possesses unique heat/mortality characteristics, and hence, requires a separate website. Conclusion: This year, we have concentrated on technology transfer and developing the spatial synoptic classification for a variety of climate environments in Korea. System evaluation and determination of effectiveness of stakeholder responses are planned to commence in upcoming years.