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Intelligent solar flare data observation method

A technology of solar flares and data, applied in photometry, television, color television, etc. using electric radiation detectors

Inactive Publication Date: 2012-03-21
NAT ASTRONOMICAL OBSERVATORIES CHINESE ACAD OF SCI
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Problems solved by technology

[0005] However, the above-mentioned manual acquisition mode has the following defects and shortcomings: First, due to the slow speed of manual image acquisition, the time resolution of the obtained data is relatively low ; Second, the manual judgment is inaccurate, which may miss the flare outbreak time, resulting in incomplete data collection; Third, because there is no automatic control of the exposure time, the data collected by the CCD will overflow as the flare increases, so the flare cannot be seen Key information about the nuclear area

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Embodiment Construction

[0027] Taking a charge coupled device (CCD, Charge Coupled Device) with a target surface of 2K×2K as an example, when the number of saturated pixels exceeds one percent of the area of ​​the sun surface, that is, when there are about 200×200 saturated pixels , which corresponds to a flare of medium (M) or higher level. Here, suppose we divide the flare level into three levels, namely low (S), medium (M) and high (L); when the number of saturated pixels is less than one percent of the target surface area, the corresponding S If it is higher than 1 percent, it is M grade; if it is higher than 30 percent, it is corresponding to L grade.

[0028] In this way, we can use the number of saturated pixels on the CCD target surface during the detection process as a discriminant parameter for flare bursts, thereby proposing the near-saturated area threshold method of the present invention for automatic identification of flare bursts. In the algorithm, the near-saturation brightness value...

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Abstract

The invention discloses an intelligent solar flare data observation method, which comprises: starting a solar flare data observation system to acquire solar image data in time and store the solar image data in a memory; and judging if a solar flare outbursts, and if a solar flare outbursts, automatically regulating a preset exposure time and regulating a data acquisition mode at the same time to acquire solar flare data and then storing the flare data or solar image data collected by the solar flare observation system into a hard disk. When the observation method is used, the flare event outburst can be monitored automatically and an alarming information can be given automatically; and in addition, as the method of the invention can be used in the conventional solar flare observation system, the automatic control over the exposure time and acquisition speed is realized, and the acquired flare data have higher time and space resolution.

Description

technical field [0001] The invention relates to a solar physics research technology in the field of astronomical observation, in particular to an intelligent solar flare data observation method. Background technique [0002] Solar flares, dark streak eruptions, and coronal mass ejections (CMEs) are three types of violent activity phenomena on the solar surface. The study of them can not only help solar physicists better understand solar physics, but also provide insights into space weather, which is closely related to the national economy and people's livelihood. Forecasting is important. Solar flare is a kind of violent activity phenomenon observed at the solar chromosphere level (Hα band), and its observation characteristics generally have two stages: flash phase / burst phase and continuous phase. Among them, the period of rapid increase in the brightness of solar flares is called the flash phase, and the period of rapid increase in the area of ​​the flare is called the ou...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G03B7/00H04N5/232G01J1/42
Inventor 林佳本邓元勇胡柯良郭娟
Owner NAT ASTRONOMICAL OBSERVATORIES CHINESE ACAD OF SCI
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