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第八章 水文系统识别技术 PowerPoint PPT Presentation


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第八章 水文系统识别技术. 第八章 水文系统识别技术. 主要内容. 8.1. 水文系统识别的概念. 8.2. 水文系统识别的原理与方法. 8.3. 人工神经网络水文模型及应用. 8.4. 水文系统识别应用. 8.1 水文系统识别的概念. 8.1.1 水文系统的概念. 水文系统是地球大气圈环境内由相互作用和相互依赖的若干水文要素组成的具有水循环(演变和转换)功能的整体 。. 系统的特性可以从不同的方面加以分类,主要有线性与非线性、时变与非时变、集总参数与分散参数、确定性与不确定性等。. 8.1.2 水文系统识别的概念与数学描述.

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第八章 水文系统识别技术

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8.1

8.2

8.3

8.4


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8.1

8.1.1


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8.1.2

M


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8.1.1

8.1.2

8.1.3

E D0


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8.1.3


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8.1.4


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8.1.5

8.1.5.1


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8.1.5.2


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8.1.5.3


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8.2

8.2.1

E

(8.2.1)

[0T]


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8.2.2


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8.2.3


8 3 ann

8.3ANN

8.3.1 ANN

ANNArtificial Nerve NetworkHecht Nielsen


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8.3.2 ANN)

B-PANN


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B-P


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B-Pf(u)f(u)


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B-P

8.3.1


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B-P


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8.3.3 ANN

ANNANNANN~ANN


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8.3.4 ANN

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  • -

  • -


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-


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199319975

196519691981199217ANN


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ANN


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ANN


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ANN


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ANN


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8.4

8.4.1


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8.4.2

P+QI+RSI+RGI+UGI=E+RSO+RGO+UGO+V

8.4.1

PEEPEQEGERE= EP + EQ + EG + ERQIRSIRGIRSORGOUGI, UGOV


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8.4.3

QIRS

EQ


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EQEQEQ1EQ2EQ=EQ1+EQ2

EQ1=(1-n)QInQIEQ1

EQ1=a3(1-n)QI

8.4.2

a3


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EQ2=nQIEQ2

Ep


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E601E601

Ep = KE601

8.4.3

K0.9

EpE

8.4.4

WW0WW0


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EQ

8.4.5

FH0


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8.4.5EpEpa2E601E20a2E601E601E2020cm

EQ2

8.4.6


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8.4.6a2H0

1 a2E20a20.60.9=0.54E601a20.9

2 H0H0,H0H0H0


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H0

8.4.7

ijP pppp0.650.85Kk=1kH0k


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8.4.4

RR0.8a0.001


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8.4.5


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  • n

  • H0H0


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8.4.6

EQ = 0.54( F)E20+0.604165[(1-n)QI]

R=0.92


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EQ = 0.54( F)E20+0.60[(1-n)QI] R=0.90


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EQ = 0.002572E20F+0.061688QIR=0.87

EQ = 0.599QI +18.00 (QI) R=0.90


Zhengzhou university

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ZHENGZHOU UNIVERSITY


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