Flash floods are among the world’s deadliest natural disasters with more than 5 000 lives lost annually. Their social, economic and environmental impacts are significant. Accounting for approximately 85% of flooding cases, flash floods also have the highest mortality rate among different classes of flooding, including riverine and coastal. Flash floods differ from river floods in their short time scales and occurrence on small spatial scales, which makes flash flood forecasting a different challenge from large-river flood forecasting.
Member news related
Research meteorologists from Poland (Institute of Geophysics Polish Academy of Sciences, Collegium Civitas), USA (Naval Research Laboratory, Scripps Institution of Oceanography) and Indonesia (Agency for Meteorology, Climatology and Geophysics of the Republic of Indonesia, Andalas University) identified key predictors of floods on Sumatra. The research is part of the Years of the Maritime Continent and the Equatorial Line Observation (ELO) project.
Indonesia takes special precaution of wildfire risk in peatlands areas, and attempt to mitigate the risk by rewetting the peatlands by weather modification activities. The Agency for Meteorology Climatology and Geophysics (BMKG) is working closely with partner authorities in this efforts by providing critical information such as cloud growth potential map from weather forecasts, and real time satellite and radar data analyses to determine flight sorties departure and pinpoint location of cloud cells to be seeded. For this tall order, we had made 16 flight sorties during the period of 13-31 May 2020 that associated with 138,1 mm of rainfall.
The ASEAN Climate Outlook Forum has issued its seasonal forecast for the summer monsoon season, June-July-August 2020 over Southeast Asia, taking into account the possible influence of the El Niño Southern Oscillation (ENSO) and the Indian Ocean Dipole (IOD) on the climate system over the region.
Chile, in its role as presidency, designated the UN Climate Change Conference, COP25, as the ‘Blue COP,’ in order to increase awareness of the impact of climate change on the ocean and to harness ocean science to support climate action.
The roles of National Meteorological Services are the key to inform appropriate actions before and during hazardous event, such as the recent drought-induced fires and smoke episode in the western maritime continent area. The Agency for Meteorology Climatology and Geophysics (BMKG) is working closely with partner authorities in efforts to prevent and extinguish fires and also mitigate its impacts. In the dry season which is exacerbated with a strong positive Indian Ocean Dipole mode, conditions are much dryer than usual and thus chances of precipitations are generally small and the onset of the wet season is expected to be delayed.