This paper discusses the result of the development of a hydrometeorological hazard early warning system (H-MHEWS) that combines weather prediction from Weather Research and Forecasting (WRF) and the hydrometeorological hazard index from the National Disaster Management Authority (BNPB), Indonesia. In its current development phase, the hazards that H-MHEWS predicts are floods, landslides, and extreme weather events. Potential hazard indices are obtained by using an overlay approach and resampling so that the data have a 100-m spatial resolution. All indices are classified into 4 status categories: "No alert", "Advisory", "Watch", and "Warning". Flood potential is produced by overlaying rainfall prediction at 3hour intervals with the flood index. Landslide potential is produced by overlaying rainfall prediction with the landslide index. Extreme weather potential is divided into 3 categories, i.e. heavy rain, strong winds, and extreme ocean waves. The whole prediction is dynamic, following weather predictions at 3-hour intervals. The hazard prediction results will trigger a 'Warning' alert in case of emergency status. This alert will be set up in a notification system to make it easier for the user to identify the most dangerous hydrometeorological hazard events.

Research on the development of data integration system design and web-based system in the calculation of Marine Ecological Carrying Capacity (MECC) for managing marine and coastal resource management has been carried out. In this study, Nunukan Regency, North Kalimantan was chosen as the study area. The process of integrating data in managing marine and coastal resources in a sustainable manner using the carrying capacity concept approach is carried out by designing an information system development system in processing and displaying the results of MECC calculations. This can make it easier for decision makers to develop the utilization of blue economic potential in accordance with geographic conditions as well as efforts that can be made to increase the productivity of the blue economy in Nunukan Regency, North Kalimantan.

Cities have a high vulnerability to climate change. Rising sea levels that cause tidal flooding frequently happen in coastal cities, damaging the environment. People lost their houses and occupation, making them powerless. This research aims to identify the adaptation strategy used by urban communities in coastal cities to survive environmental problems due to climate change. This research is located in Tambak Lorok in Semarang City and Bedono in Demak Regency. Qualitative research was employed to gain an in-depth understanding of the adaptation strategy of urban coastal communities. Data were collected by interviews, observation, and literature study. The results show that environmental problems that occurred because of climate change are one complication of serious problems, but it is worsened by construction projects as a part of urban development. The two communities have similar but different strategies for survival in that situation. While the people of Tambak Lorok in Semarang City do not have any other better option than accepting the relocation, the people of Bedono in Demak Regency rely on mangroves to protect their settlements. This result concludes that although urban coastal communities have their adaptation strategies, they need long-term solutions from local governments and other parties to live without worry.

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