Prediction method and device of high-energy electron burst event, and storage medium and device

A technology of high-energy electrons and electron storms, applied in the direction of radiation intensity measurement, etc., can solve the problems of low prediction accuracy, insufficient stability and lack of numerical simulation methods, and achieve the effect of improving accuracy

Active Publication Date: 2019-09-13
NAT SATELLITE METEOROLOGICAL CENT +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, numerical simulation methods based on physical principles are not specific to geosynchronous orbits and are not stable enough
The above-mentioned methods are all aimed at the possibility and scale of the acceleration of electrons with lower energy. Due to the lack of relevant data and knowledge of physical processes, there are certain defects in the prediction of high-energy electron storms based on these traditional space environment data, especially the inability to predict high-energy electron storms. Accurate forecasting of the occurrence time of electronic storms
Because the correlation between the acceleration process of high-energy electrons and the disturbance of the geomagnetic environment is very complicated, the existing forecasting models cannot predict high-energy electron storm events (daily flux greater than 10 8 cm -2 sr -1 ) has certain defects in the beginning, development process and end time
For example, the forecast accuracy rate is too low, etc.

Method used

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  • Prediction method and device of high-energy electron burst event, and storage medium and device
  • Prediction method and device of high-energy electron burst event, and storage medium and device
  • Prediction method and device of high-energy electron burst event, and storage medium and device

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Embodiment 1

[0041] The present embodiment provides a method for forecasting a high-energy electron storm event, the method comprising the following steps:

[0042] The daily flux of high-energy electrons F on the day of extraction T And Zhongneng Electronics Index Data I T0 ;

[0043] According to the high-energy electron daily flux F T And the Zhongneng Electronics Index data I T0 Calculate the energetic electron flux F for the next day T+1 ;

[0044] According to the calculated high-energy electron flux F of the second day T+1 , to predict whether a high-energy electron storm event will occur, if F T+1 If it is greater than the first threshold of the daily flux of high-energy electrons that occurs in high-energy electron storms, it is predicted that a high-energy electron storm event will occur on the next day, otherwise it is predicted that a high-energy electron storm event will not occur on the next day.

[0045] Now refer to figure 1 , to describe the method in detail. Such...

Embodiment 2

[0073]This embodiment also provides a method for forecasting high-energy electron storm events. In this embodiment, for example, May 27, 2018 is selected as an example. Extract the high-energy electron daily flux F on May 27 from the downloaded high-energy electron detection data file and the medium-energy electron index file T =1.2ⅹ10 8 cm -2 sr -1 , the medium-energy electron flux index I T0 = 0.2404. F on May 27 T 10 greater than the first threshold 8 cm -2 sr -1 , so it can be seen that a high-energy electron storm event occurred on May 27. Therefore, the above formula (2) is selected to calculate the high-energy electron flux F of the next day (that is, May 28) T+1 . The above F on May 27th will be extracted T =1.2ⅹ10 8 cm -2 sr -1 and I T0 =0.2404 into the formula (2) to obtain the F of the next day T+1 =7.92ⅹ10 7 cm -2 sr -1 . The F T+1 is less than the first threshold, therefore, it is predicted that the high-energy electron storm event will end on...

Embodiment 3

[0077] This embodiment also provides a method for forecasting a high-energy electron storm event. The difference between this method and the method for forecasting a high-energy electron storm event provided in Embodiment 1 is that this embodiment provides another method for predicting the end of a high-energy electron storm event. The method, described method comprises the following steps:

[0078] The daily flux of high-energy electrons F on the day of extraction T When it is greater than the above-mentioned first threshold, extract the previous day's medium energy electronic index data I (T-1)0 ;

[0079] Compared with the previous day's data I (T-1)0 And the said Zhongneng Electronics Index data I of the day T0 , judging whether the high-energy electron storm event is over. If the MEI data is updated by the previous day's I (T-1)0 Less than the fourth threshold of the medium-energy electronic index data, rising to the I of the day T0 If it is greater than the fifth t...

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Abstract

The present invention provides a prediction method and device of a high-energy electron burst event, and a storage medium and device. The prediction method comprises the following steps: extracting high-energy electron daily flux FT and medium-energy electron index data IT0 of a day; calculating high-energy electron flux FT+1 of a second day according to the high-energy electron daily flux FT andthe medium-energy electron index data IT0; predicting whether a high-energy electron burst event occurs according to the calculated high-energy electron flux FT+1 of the second day; predicting that the high-energy electron burst event occurs on the second day if FT+1 is greater than or equal to a first threshold of the high-energy electron daily flux generated by the high-energy electron burst; otherwise, predicting that the high-energy electron burst event does not occur on the second day. The technical solution recorded in the present invention improves the accuracy rate of prediction of thehigh-energy electron burst event in a geosynchronous orbit, and accurately predicts the high-energy electron flux of the geosynchronous orbit and especially the occurrence time of the high-energy electron burst event, so that not only a data basis is provided for the protection of service satellites of the geosynchronous orbit, but also the reference is provided for on-orbit protection of other satellites operating in a region.

Description

technical field [0001] The invention relates to the field of high-energy electronic environment forecasting, in particular to a forecasting method, device, storage medium and equipment for high-energy electronic storm events. Background technique [0002] In space, especially in geosynchronous orbit, high-energy electrons can pass through the outer protective material of the satellite and be deposited into the internal insulating medium. If the flux of high-energy electrons is high, a local high-potential state will be formed, also known as " "Deep charging" will affect the normal operation of satellites in mild cases, and even cause permanent damage in severe cases. Therefore, people attach great importance to high-energy electronic environmental forecasting. Geosynchronous orbit not only operates many operational satellites, but also the state of high electron flux often occurs, so the environmental prediction of high energy electrons in geosynchronous orbit is particular...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01T1/16
CPCG01T1/16
Inventor 薛炳森鲁礼文赵薪童林棽周率
Owner NAT SATELLITE METEOROLOGICAL CENT
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