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Miljøstatistikk 1978: Naturressurser og forurensninger - SSB

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94<br />

Figur 3.6. Grunnvannstand. 1975-1977 Ground water level. 1975-1977<br />

cm<br />

0<br />

Aursunden ved Dølvoll<br />

Observert vannstand<br />

Observed water level<br />

Median vannstapd 1970-1977<br />

Median water l4,vel 1970-1977<br />

cm<br />

o<br />

100<br />

- 100<br />

200<br />

200<br />

300<br />

300<br />

400<br />

400<br />

500<br />

500<br />

600 -111IIIII IIIIIIIIIII<br />

J FMAMJ JASONDJFM AMJ J AS ON DJ F<br />

1975 1976<br />

Møsvatn ved Groset<br />

cm Observert vannstand<br />

0<br />

I I I I I I I 600<br />

MA MJ JAS OND<br />

1977<br />

Median vannstand 1953-1977 em<br />

0<br />

50<br />

50<br />

100<br />

100<br />

150<br />

150<br />

200<br />

200<br />

250<br />

cm<br />

0<br />

FMAMJJ AS ONDJ FM AMJ JAS ONDJ F JAMJ J AS OND<br />

1975 1976 1977<br />

Arendal ved Stigvassii<br />

Observert vannstand Median vannstand 1972-1977<br />

250<br />

CM<br />

0<br />

50<br />

50<br />

100<br />

100<br />

150<br />

150<br />

200<br />

cm<br />

0<br />

IIIIIIIIIII<br />

JFMAMJJ AS ONDJ FMAMJ JAS OND<br />

1975 1976<br />

Mo i Rana ved Lilleiga<br />

Observert vannstand<br />

JIF IAIS I O I N I D<br />

1977<br />

200<br />

Median vannstand 1973-1977 em<br />

50<br />

50<br />

100<br />

100<br />

150<br />

150<br />

200<br />

250<br />

200<br />

250<br />

300<br />

300<br />

Kilde: Norges vassdrags- <strong>og</strong> elektrisitetsvesen. Source: Norwegian Water Resources and Electricity Board.

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