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tsunami.ioc.unesco.org

Japanese term meaning wave (“nami”) in a harbour (“tsu”). A series of travelling waves of extremely long length and period, usually generated by disturbances associated with earthquakes occurring below or near the ocean floor. (Also called seismic sea wave and, incorrectly, tidal wave). Volcanic eruptions, submarine landslides, and coastal rock falls can also generate tsunamis, as can a large meteorite impacting the ocean. These waves may reach enormous dimensions and travel across entire ocean basins with little loss of energy. They proceed as ordinary gravity waves with a typical period between 10 and 60 minutes. Tsunamis steepen and increase in height on approaching shallow water, inundating low-lying areas, and where local submarine topography causes the waves to steepen, they may break and cause great damage. Tsunamis have no connection with tides; the popular name, tidal wave, is entirely misleading.

earthquake.usgs.gov

Landsat Collection 2 Surface Temperature products are generated from several input data sources and atmospheric profiles. This includes NASA's Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER) Global Emissivity Dataset (GED).   The ASTER GED dataset is created from all clear-sky pixels of ASTER scenes acquired from 2000 through 2008. While this dataset has a global spatial extent, there are areas that are  missing the mean emissivity information due to persistent cloud contamination in the ASTER measurements. When mean emissivity information is missing, the Surface Temperature product will contain areas of missing data.  Learn more: Landsat Collection 2 Surface Temperature data gaps due to missing ASTER GED

usgs.gov

Not specifically. Our charge is to understand characteristics of the Earth, especially the Earth's surface, that affect our Nation's land, water, and biological resources. That includes quite a bit of environmental monitoring. Other agencies, especially NOAA and NASA, are specifically funded to monitor global temperature and atmospheric phenomena such as ozone concentrations. The work through programs of our Land Resources mission (Land Change Science, National Land Imaging and Climate Adaptation Science Centers) focus on understanding the likely consequences of climate change, especially by studying how climate has changed in the past.

noaa.gov

Each year more than 1,200 tornadoes take place in the United States. These destructive and awe-inspiring events are notoriously difficult to predict. Yet, NOAA and others are deepening our understanding of tornadoes and improving warning times to save lives. The resources in this collection cover the past, present, and future of tornado science and forecasting. Through research

geonet.org.nz

geological hazard information for New Zealand.

earthquakescanada.nrcan.gc.ca

earthquakes canada

tsunami.org

Saving lives through education and awareness. The Museum serves as a living memorial to those who lost their lives in past tsunami events.