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Intro -- Contents -- 1 Introduction -- Abstract -- 2 Application of Dense Offshore Tsunami Observations from Ocean Bottom Pressure Gauges (OBPGs) for Tsunami Research and Early Warnings -- Abstract -- 1 Introduction and Background -- 2 Data and Different Types of OBS Pressure Gauges -- 3 Methodology -- 4 Case Study One: The 2012 Haida Gwaii Tsunami, Offshore Canada -- 5 Case Study Two: The 2009 Dusky Sound Tsunami, Offshore New Zealand -- 6 Conclusions -- Acknowledgements -- References -- 3 Remote Sensing for Natural or Man-Made Disasters and Environmental Changes -- Abstract -- 1 Introduction -- 2 St. Lucia Case Study -- 3 Papanice Case Study -- 4 Sendai Case Study -- 5 Discussion and Conclusions -- Acknowledgements -- References -- 4 Classification of Post-earthquake High Resolution Image Using Adaptive Dynamic Region Merging and Gravitational Self-Organizing Maps -- Abstract -- 1 Introduction -- 2 Methodology -- 2.1 Feature Extraction -- 2.2 Adaptive Region Descriptor -- 2.3 Dynamic Region Merging -- 2.4 gSOM Clustering -- 2.5 Clustering Ensemble -- 3 Experiments -- 3.1 Survey Area and Data Description -- 3.2 Experiment Setups -- 3.2.1 ADRM Segmentation Evaluation -- 3.2.2 gSOM Classification Evaluation -- 4 Conclusion -- Acknowledgments -- References -- 5 A Survey on the Role of Wireless Sensor Networks and IoT in Disaster Management -- Abstract -- 1 Introduction -- 2 WSN Driven Disaster Monitoring and Management Systems -- 2.1 Applications of Sensor Networks in Disasters Management -- 2.2 5G and Device to Device Communication -- 2.3 Software Defined Radio -- 2.4 Cognitive Radio (CR) -- 2.5 Indoor Position Technologies -- 2.6 Disaster Situation Aware Protocols for Mobile Devices -- 2.7 Mobile Phone Disaster Mode -- 3 Existing IoT Standards: LoRa/4G LTE -- 3.1 LoRa -- 3.1.1 Limitations of LoRaWAN -- 3.2 4G LTE -- 3.2.1 Limitations of 4G LTE.