monkeeye / cosmic_rays_emd_co_wc

cosmic_rays_emd_Co_WC

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Geomagnetic Storm Forecasting caused by ICME based on CEEMDAN of Cosmic rays article layout

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Overview

• Method: CEEMDAN/Hilbert Transform
• Cosmic Rays/Kp IndexDataset
  • Time Range: Solar Cycle 22/1997-2008, Solar Cycle 23/2008-2019
  • Time Resolution: 0.5h/3h
• Event Requirement:
  • Kp > 8

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Data Preprocessing

1. ICMEs -> 4 days before events
2. CRs -> CEEMDAN -> 1-10 IMFs

st=>start: 开始
e=>end: 结束
op1=>operation: 新品开发流程
op2=>operation: 产品需求提出
op3=>operation: 产品试用 负责人：吴xx
op4=>operation: 包装
op5=>parallel: 继续讨论
op6=>operation: 讨论
cond=>condition: 确认？

st->op1->op2->op3->cond
cond(yes)->op4->e
cond(no)->op6->e

1. IMF(s) Ma->
2. data quality -> error situation statistic
3. check the data distribution -> show in figure or table
4. color removing and masking
5. fits/jpeg -> [0,1]

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Methodology

NO-SUM

1. statics

   Num.	Max	Min	Mean
   IMF	?	?	?

2. time-domain:

• x: time(3h), y:imf, z:max/min/mean -> (threshold)

3. frequency-doamin:
   • x: frquency(Hz), y: imf, z: amplitude
   • x: time(3h), y: imf, z: max amplitude/index of max amplitude

Validation & Result

• in advance? how long?
• *quiet period -> warning signal?
• test on new data： Solar Cycle 22/1997-2008, Solar Cycle 23/2008-2019

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Figures

1. CRs 11 year-period compare with SSN
2. Diurnal variation
3. CEEMDAN robust(compared with emd & eemd)
4. methdology 2/3
5. test result