Write any two technologies/instruments that allow scientists to track and know when and where a disaster will occur. Write in brief about any two such technologies.
Answers
Explanation:
Disaster prediction for natural events isn’t an exact science. Despite advances in technology, no one can tell with complete accuracy when a volcano will erupt, or how powerful a hurricane will be on landfall.
However, observation and data are powerful tools, so prediction is getting better and faster.
Throughout history, people have known about the potential for natural disasters. Storytelling cultures handed down the “data” from previous events to keep communities aware. For example, Pacific Northwest oral traditions tell of a great earthquake and resulting tsunami to warn people about what to do in future events. Recently, Simeuluean islanders escaped harm during the tsunami following the 2004 Indian Ocean earthquake because of similar stories handed down through the generations.
Today, instrumentation and digital data supplement visual observation and oral histories. Analysts use many sources to gather data.
Earthquakes and Tsunamis
Seismic instruments measure shaking in the Earth’s crust as geological fault lines slip. In the deep ocean, sensors monitor volume displacements and seabed deformation. Increasing activity can predict an earthquake.
Along one of the world’s most famous fault lines, the San Andreas Fault in California, the U.S. Geological Survey (USGS) collects data from tilt meters and creep meters that precisely measure earth movement; however, strain meters and pressure sensors embedded into the rock warn of pressure building up before a slip.
The National Oceanic and Atmospheric Administration (NOAA) collects data from a chain of early-warning oceanic devices including wave-height sensors and Deep-ocean Assessment and Reporting of Tsunamis (DART) buoys. These seabed sensors monitor seismic events beneath the waves then transmit the alerts back to land via surface buoys for coastal tsunami alerts.
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Answer:
Earth Scientists Use Fractals To Measure And Predict Natural Disasters
Explanation:
fractals:In geology and geophysics is accepted that definition of the different “fractals” as real physical objects is most often connected to fragmentation . This reveals that each measurable object has a length, surface or volume, which depends on the measuring unit and the object's form (shape) irregularity.
seimometer:A seismometer is an instrument that responds to ground motions, such as caused by earthquakes, volcanic eruptions, and explosions. Seismometers are usually combined with a timing device and a recording device to form a seismograph.[1] The output of such a device—formerly recorded on paper (see picture) or film, now recorded and processed digitally—is a seismogram. Such data is used to locate and characterize earthquakes, and to study the Earth's internal structure.
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