Method for monitoring volcano by GPS measurement technology

Abstract

The invention provides a method for monitoring a volcano by a GPS measurement technology. The method comprises the steps of 1) obtaining an actual atmosphere temperature value and an actual atmospheretemperature profile line of a region where the volcano is located according to a GNSS-based occultation inverse algorithm; 2) taking an atmosphere temperature daily mean value of the region where thevolcano is located before eruption a plurality of years ago with five days more or less, and obtaining a background temperature profile line according to the atmosphere temperature daily mean value;3) subtracting the atmosphere temperature daily mean value obtained in the step 2) from the actual atmosphere temperature value obtained in the step 1) to obtain a disturbance temperature profile lineof the region where the volcano is located caused by volcanic ash; 4) taking the atmosphere temperature daily mean value obtained in the step 2) with one second standard deviation more or less as a deviation profile line zone; and 5) monitoring the volcanic ash erupted by the volcano according to the actual atmosphere temperature profile line, the background temperature profile, the disturbance temperature profile line and the deviation profile line zone. By the method, whether the volcanic ash of the volcano is erupted or not can be effectively monitored, and the volcanic ash eruption heightand the concentration of the volcanic ash can be acquired.

Description

Technical field [0001] The invention belongs to the technical field of communication monitoring, and particularly relates to a method for monitoring volcanoes using GPS measurement technology. Background technique [0002] A volcanic eruption will eject a large amount of rocks, volcanic ash, volcanic gas, etc. These substances severely damage the integrity of buildings, hinder traffic safety, curb the growth of plants, and affect human health. Therefore, it is very important to monitor and forecast volcanic eruptions. [0003] Volcano Meteorological Observatories often use geophysical sensors such as seismometers, inclinometers, infrasound, gas monitors, and network cameras to observe volcanic turbulence, warn of potential hazards, and detect volcanic eruptions. The data from these sensors must be integrated into a near real-time state in order to explain the scope of volcanic activity. Moreover, seismic sensors cannot clearly determine whether the volcanic ash has erupted, the ...

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Problems solved by technology

[0004] In view of the shortcomings of the prior art described above, the purpose of the present invention is to provide a method for monitoring volcanoes using GPS measurement technology, which is used to solve the problem that there is no effective means in the prior art to clearly determine whether the volcanic ash has erupted, the height of the volcanic ash, the The question of the duration of the eruption

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