IJsdikte op basis van vorsturen - logboekweer.nl · Berekende ijsdikte in cm om 11 uur op de...

IJsdikte op basis van vorsturen

Berekende ijsdikte in cm om 11 uur op de genoemde dag. Rode cijfers: afname (gemiddelde temperatuur boven 0 in de voorgaande 24 uur).De hier gebruikte berekening is bedoeld voor voor ondiep, stilstaand water. De werkelijke ijsdikte kan in belangrijke mate afwijken, en wordt mede bepaalddoor de aanwezigheid van sneeuw, de hoeveelheid bewolking, de luchtvochtigheid en de windkracht.Berekening bij vorst (Tg(11-11) < 0): IJsdikte = FDD^0,59 * 1,33 (FDD = Freezing Degree Days). Naar Lebedev 1938, maar iets aangepast.Berekening bij dooi (Tg(11-11) > 0): IJsdikte = voorgaande ijsdikte - Tg(11-11) * 0,3 (empirisch). Bij dooi kunnen grote plaatselijke verschillen ontstaan.Versie 7 februari 2017. Op basis van uurgegevens van het KNMI. www.logboekweer.nl

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24dec1970

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26dec1970

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4jan1971

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8jan1971

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1mrt1971

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19jan1972

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20jan1972

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21jan1972

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24jan1972

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25jan1972

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26jan1972

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27jan1972

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28jan1972

2.8

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29jan1972

2.8

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9.1

1.4 1.3

1.0

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1.7

1.4

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0.7

2.7

30jan1972

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3.5

8.7

4.4

4.1

4.8 7.4 3.9

3.3

5.0

31jan1972

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5.5

8.4

11.9

6.5 6.5

5.0

10.4

7.0

6.0

6.7 9.5 5.9

5.2

7.5

1feb1972

8.4

6.8

9.7

13.0

7.8 7.8

6.0

11.5

8.4

7.2

8.1 10.9 7.2

5.9

8.8

2feb1972

8.6

7.5

10.1

13.7

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5.9

12.2

8.2

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5.6

8.7

3feb1972

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8.9

13.0

6.3 6.3

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11.3

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5.8

7.3 10.1 6.4

4.2

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4feb1972

5.9

5.2

7.4

11.9

4.6 4.6

2.1

10.0

4.2

3.9

6.0 8.6 4.9

2.7

5.9

5feb1972

4.9

4.2

6.5

11.2

3.3 3.6

0.8

9.1

2.9

2.9

5.1 7.5 3.9

1.5

4.8

6feb1972

3.7

3.3

5.5

10.6

1.8 2.4

8.2

1.3

1.4

4.0 6.4 2.8

3.7

7feb1972

1.5

1.5

3.4

9.0 6.7

2.0 4.2 0.6

1.5



8feb1972

0.4

1.4

7.7 5.7

0.4 1.9

9feb1972

0.2

7.2 4.7

1.0

10feb1972 6.6

4.111feb1972 6.1

3.5

12feb1972 4.7

2.313feb1972 3.6

1.214feb1972 2.7

0.315feb1972 1.9

16feb1972 0.8

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1.1

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0.3 1.5

1.2



22dec1972

2.5

1.4

2.1

3.0

3.0 2.7

2.0

3.4

1.8 3.4 0.5

3.5

23dec1972

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2.8

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4.5

4.0 3.7

1.3

3.5

4.1

1.9

3.5 4.5 2.2

2.2

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24dec1972

4.3

2.5

3.9

4.9

4.4 4.0

1.0

3.7

4.6

2.0

4.0 4.9 2.2

2.2

5.1

25dec1972

4.7

2.4

4.2

5.1

4.4 4.3

0.6

3.7

4.8

1.9

4.4 5.1 2.3

1.8

5.4

26dec1972

4.6

2.3

4.1

5.5

4.3 4.3

3.8

4.3

1.6

4.6 5.1 2.3

0.9

5.6

27dec1972

3.7

1.6

3.3

5.6

3.5 3.3

3.2

2.4

3.7 4.6 1.5

5.1

28dec1972

2.8

0.8

2.4

5.5

2.6 2.2

2.5

0.5

2.9 3.7 0.5

4.5

29dec1972

2.1

0.2

1.6

5.4

1.7 1.5

1.8

2.2 3.3

4.2

30dec1972

2.1

0.3

1.6

6.6

0.7 2.0

2.2

2.0

0.8

1.7 3.5 1.0

4.6

31dec1972

4.3

3.0

3.6

8.1

3.2 4.2

1.2

4.3

3.3

2.8

3.7 5.1 3.3

6.4

1jan1973

5.6

3.9

4.7

9.0

4.6 5.4

0.7

5.6

4.1

2.9

4.7 6.7 4.0

7.8

2jan1973

5.6

3.4

5.1

9.3

4.9 4.9

5.6

4.1

2.0

4.5 7.7 3.4

8.3

3jan1973

4.7

2.0

4.3

8.5

4.1 3.9

4.6

3.7

0.7

3.6 7.3 2.0

7.7

4jan1973

3.6

0.5

3.3

7.6

2.7 2.4

3.5

2.7

2.4 6.5 0.3

6.4

5jan1973

3.4

0.6

3.1

7.4

2.2 1.9

2.9

2.2

0.3 6.3

6.2

6jan1973

2.9 2.5

6.5

1.7 1.3

2.1

2.0

6.0

5.8



7jan1973

2.3 2.2

5.5

1.3 0.8

1.1

1.7

5.9

5.6

8jan1973

1.3 1.6

4.4

0.7

1.3

5.3

5.0

9jan1973

0.1 0.6

3.1

0.6

4.4

4.0

10jan1973 1.9

3.4

3.1

11jan1973 0.6

2.5

2.3

12jan1973

1.7

1.5

13jan1973

0.6

1.1 1.6

2.1

0.3

1.5

2.0

14jan1973

0.5

0.3

0.7 1.4

1.6

0.3 1.4

2.1

15jan1973

0.7

16jan1973

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0.3

18jan1973

19jan1973

20jan1973

0.6 0.6

0.8

0.6 0.7

0.8

21jan1973 0.5

0.1

22jan1973



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24jan1973

25jan1973

26jan1973

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2feb1973

3feb1973

4feb1973

0.5 0.5

0.6 0.6

0.8

0.6 0.5

0.8

5feb1973

2.0 2.1

1.6

1.9 1.6

2.3

0.6

2.0 2.0

0.3

2.2

6feb1973

0.8 1.1

0.5

1.0 0.5

1.8

0.4 1.2

1.3

7feb1973

0.1



8feb1973

9feb1973

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1.1

18feb1973

0.3

0.8

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20feb1973

21feb1973

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24feb1973

25feb1973

26feb1973

0.5 0.8

1.8 1.6

0.5

0.8

0.8

2.0

27feb1973

0.4 1.7

0.5

2.5 1.9

1.5

0.8

1.9

2.5

28feb1973

1.7

0.2

2.6 1.8

1.7

0.2

2.0

2.4

1mrt1973

0.7

1.6 0.6

0.9

1.1

1.5

2mrt1973

0.1

0.1

3mrt1973

4mrt1973

5mrt1973

6mrt1973

7mrt1973

8mrt1973

9mrt1973

10mrt1973

11mrt1973



20nov1973

21nov1973

22nov1973

23nov1973

24nov1973

25nov1973

26nov1973

27nov1973

0.5

28nov1973

1.0

1.2

0.9

0.7

29nov1973

1.1

1.2

1.0

0.9

0.8

30nov1973

1.2 2.2

2.4

2.2 1.4

1.1

1.7

0.3 2.3

1.7

1dec1973

3.2

2.3

4.1

4.8

3.8 3.2

3.7

3.2

2.2

2.5 4.5 2.0

3.4

2dec1973

5.7

3.0

7.0

7.4

6.3 5.8

1.5

5.1

5.4

4.7

5.2 7.1 3.7

1.2

6.3

3dec1973

6.6

2.2

8.0

7.8

8.0 7.2

0.5

5.0

7.6

4.7

5.5 8.1 3.0

0.8

8.0

4dec1973

5.3 7.0

6.4

7.2 6.2

3.1

7.2

3.0

4.0 7.3 0.8

7.2

5dec1973

3.3 5.0

4.7

4.9 3.7

1.1

5.3

0.5

1.7 5.5

5.2



6dec1973

1.0 2.7

2.6

2.5 1.2

3.0

3.3

2.8

7dec1973

1.5

1.2

1.3

1.6

2.0

1.4

8dec1973 0.5

0.4

9dec1973 0.2

0.3

10dec1973

2.1

0.7

2.4

1.8

2.1 2.1

1.1

2.1

1.3 2.6 1.3

2.5

11dec1973

2.7

0.1

3.1

2.3

2.5 2.5

1.1

2.8

1.5 3.2 1.1

3.2

12dec1973

2.1 2.6

1.6

2.0 2.0

2.3

0.6 2.6

2.7

13dec1973

0.5 1.2

0.4 0.3

1.0

1.3

1.2

14dec1973

0.1

15dec1973

0.1

16dec1973

17dec1973

18dec1973

19dec1973

20dec1973

21dec1973



22dec1973

23dec1973

24dec1973

25dec1973

26dec1973

27dec1973

28dec1973

29dec1973

30dec1973

31dec1973

0.6

1jan1974

1.9 1.5

0.8 1.0

0.9

1.0 1.4 0.6

0.6

2jan1974

3.1

1.5

2.7

1.6

1.4 2.0

1.6

1.7

2.5

1.8

2.5 2.3 2.2

0.7

2.2

3jan1974

3.3

1.7

2.9

1.9

1.3 2.0

1.4

1.9

2.4

1.8

2.8 2.3 2.3

0.5

2.2

4jan1974

2.8

1.4

2.6

1.8

0.7 1.3

0.2

1.6

1.4

0.8

2.4 2.0 1.9

1.8

5jan1974

1.7

0.3

1.9

1.1

0.1

0.7

1.2 0.9 0.7

0.9

6jan1974

0.1



7jan1974

8jan1974

9jan1974

10jan1974

11jan1974

12jan1974

13jan1974

14jan1974

15jan1974

16jan1974

17jan1974

18jan1974

19jan1974

20jan1974

21jan1974

22jan1974



23jan1974

24jan1974

25jan1974

26jan1974

27jan1974

28jan1974

29jan1974

30jan1974

31jan1974

1feb1974

2feb1974

3feb1974

4feb1974

5feb1974

6feb1974

7feb1974



8feb1974

9feb1974

10feb1974

11feb1974

12feb1974

13feb1974

14feb1974

15feb1974

16feb1974

17feb1974

18feb1974

19feb1974

20feb1974

21feb1974

22feb1974

23feb1974



24feb1974

25feb1974

26feb1974

27feb1974

28feb1974

0.8

1.5

1mrt1974

0.4

1.0

2mrt1974

0.4

3mrt1974

0.1

4mrt1974

5mrt1974

6mrt1974

7mrt1974

8mrt1974

9mrt1974

10mrt1974

11mrt1974



20nov1974

21nov1974

22nov1974

23nov1974

24nov1974

25nov1974

26nov1974

27nov1974

28nov1974

29nov1974

30nov1974

1dec1974

2dec1974

3dec1974

4dec1974

5dec1974



6dec1974

7dec1974

8dec1974

9dec1974

10dec1974

11dec1974

12dec1974

13dec1974

14dec1974

15dec1974

16dec1974

17dec1974

18dec1974

19dec1974

20dec1974

21dec1974



22dec1974

23dec1974

24dec1974

25dec1974

26dec1974

27dec1974

28dec1974

29dec1974

30dec1974

31dec1974

1jan1975

2jan1975

3jan1975

4jan1975

5jan1975

6jan1975



7jan1975

8jan1975

9jan1975

10jan1975

11jan1975

12jan1975

13jan1975

14jan1975

15jan1975

16jan1975

17jan1975

18jan1975

19jan1975

20jan1975

21jan1975

22jan1975



23jan1975

24jan1975

25jan1975

26jan1975

27jan1975

28jan1975

29jan1975

30jan1975

31jan1975

1feb1975

2feb1975

3feb1975

4feb1975

5feb1975

0.5

0.6 0.5

0.8

6feb1975

1.0 0.8

1.6

0.7

1.7

1.1 0.5

7feb1975

0.7 0.4

1.5

0.5

1.6

1.0 0.3



8feb1975

0.7 0.7

1.4

0.3

1.2

1.5 0.2

9feb1975

0.4 0.2

1.3

0.2

1.2

1.4 0.1

10feb1975 1.4

1.1

0.5

11feb1975 0.7

0.1

12feb1975

13feb1975

14feb1975

15feb1975 0.7

0.7

16feb1975

1.7

0.5

1.8

2.2

0.9 1.5

2.0

1.2

0.9

0.8 1.8 1.6

1.3

17feb1975

1.6

0.3

1.7

2.3

0.8 1.4

2.0

1.4

0.3

0.5 1.7 1.3

1.1

18feb1975

0.1 0.4

1.4 1.0

0.4

19feb1975

20feb1975

21feb1975

22feb1975

23feb1975



24feb1975

25feb1975

26feb1975

27feb1975

28feb1975

1mrt1975

2mrt1975

3mrt1975

4mrt1975

5mrt1975

6mrt1975

7mrt1975

8mrt1975

9mrt1975

10mrt1975

11mrt1975

IJsdikte op basis van vorsturen - logboekweer.nl · Berekende ijsdikte in cm om 11 uur op de...

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Transcript of IJsdikte op basis van vorsturen - logboekweer.nl · Berekende ijsdikte in cm om 11 uur op de...