IJsdikte op basis van de temperatuur · Berekende ijsdikte in cm om 11 uur op de genoemde dag. Rode...

IJsdikte op basis van de temperatuur

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 bepaald doorde voorgeschiedenis, door de aanwezigheid van sneeuw, de hoeveelheid zon, de hoeveelheid bewolking, de luchtvochtigheid en de windkracht.Berekening bij vorst (Tg(11-11) < 0): IJsdikte = FDD^0.580 * 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 9 februari 2018. Op basis van uurgegevens van het KNMI. Bart Vreeken www.logboekweer.nl

20nov2015

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1jan2016

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4jan2016 1.4

1.4

2.1 5jan2016 3.1

2.1

3.1

2.0

0.9

3.9

0.5

1.6

0.3

6jan2016 4.5

0.7

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4.4

3.3

1.9

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1.5

2.8

1.4




7jan2016 5.5

1.7

4.4

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4.3

2.7

6.2

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3.7

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8jan2016 4.5

0.1

3.3

4.5

3.0

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5.6

0.7

2.4

0.8

9jan2016 3.4

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1.0 10jan2016 1.8

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11jan2016 0.2

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1.912jan2016

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18jan2016

2.7

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2.1 2.6

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2.7

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0.7

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2.8

1.0

2.0

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1.8

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1.6

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1.0

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2.7

1.4

0.8

2.4

19jan2016

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2.9

3.5 4.0

3.0

4.6

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4.6

4.7

3.7

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4.8

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3.6

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5.8

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1.9

0.7

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0.8

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2.9

1.9

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20jan2016

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3.6 3.8

1.7

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3.9

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4.9

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1.5

2.7

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5.9

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0.3

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2.9

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21jan2016

4.3

1.8

3.6 3.8

1.6

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4.7

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4.9

3.8

0.6

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4.8

0.8

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0.6

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2.7

0.2

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22jan2016

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2.0

3.8 4.1

1.4

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4.7

5.4

4.1

0.4

5.7

5.5

1.9

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4.6

3.7

8.1

2.1

3.3

0.7

0.6

5.7

4.8

2.4

0.1

4.4




23jan2016

3.3

0.9

2.9 3.0 4.5

4.7

3.3

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3.0

4.9

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1.3

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3.1

7.9

0.6

2.0 4.7

3.7

1.0 3.0

24jan2016

1.6

0.9 0.9 2.7

3.0

1.5

1.3

1.5

2.6

1.1

3.2

2.8

0.4

1.2

1.5

1.4

6.9

3.0

1.9

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25jan2016

0.2

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0.6

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1.4

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1.3

1.8

0.8

0.6

0.5

1.4

0.5

1.5

0.3

0.3

1.8

0.8

0.6

17feb2016

1.7

0.3 0.8 2.1

1.1

0.6

1.0

1.1

2.2

0.7

1.0

2.2

0.3

1.7

0.7

0.3 2.2

1.5

1.8

18feb2016

1.3

0.5

0.3 0.9

0.5

2.0

1.7

0.3

0.6

0.8

2.5

0.5

1.2

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0.5

0.2

1.1

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0.6 2.4

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19feb2016

0.8

0.3 1.5

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0.2

1.8

0.6

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0.5

0.7

0.2 1.7

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20feb2016

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0.5 0.7

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20nov2016

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0.8

1.7

2.7

1.8

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1.8

30nov2016

3.1

1.8

2.6 3.0 3.3

2.9

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2.7

3.6

1.8

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1.7

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1.6

1.0

3.8

3.3

1.4

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1dec2016

2.2

1.2 1.2 1.9

0.7

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0.9

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0.1

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1.9

1.2 1.2

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0.6

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1.4

0.3

2.2

0.8

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1.0

0.3

2.0

1.4

0.9

5dec2016

1.9

0.6

0.8 2.4 1.5

3.4

0.7

2.3

1.9

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3.4

0.3

2.3

2.6

1.2

1.8

3.1

1.5

1.1

1.9

3.2

2.4

0.6

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6dec2016

2.7

1.9

1.8 3.4

0.7

2.8

5.1

1.8

2.8

2.6

4.6

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3.6

4.3

1.7

3.8

3.7

0.8

2.9

4.8

2.2

1.7

3.3

1.4

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3.3

0.3

1.4

2.7

7dec2016

2.3

1.0

0.8 2.4 2.1

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2.4

1.5

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3.8

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3.9

2.7

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8dec2016

0.6

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1.9

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1.5

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0.8

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3.1

0.6

1.8

0.4

9dec2016 0.1

0.7

10dec2016

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22dec2016

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0.6 0.5 0.7

1.8

1.8

1.1

0.7

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30dec2016

1.7

1.8

2.4 2.4 2.4

1.3

3.6

3.7

2.9

1.5

2.8

0.3

0.6

1.0

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1.4

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1.1

1.9 0.8

0.8

2.4

2.0

1.1

1.8

31dec2016

2.2

0.9

2.0 2.2 2.4

1.1

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1.5

2.6

0.7

1.3

2.0

2.6

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0.1

0.3

1.1 0.8

0.3

2.7

2.0 1.9

1jan2017

2.5

1.6 1.6 2.3

4.3

4.7

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0.9

2.4

1.3

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2jan2017

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2.4 2.2

3jan2017

1.9

0.7 0.3 1.7

3.8

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2.6

1.6

0.8

3.4

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1.7 1.5

4jan2017

0.7

0.2

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1.0

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0.8

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5jan2017

0.1 1.7

2.4

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6jan2017

2.8

1.9

2.1 2.5

1.4

2.8

3.0

2.7

2.6

2.7

3.0

2.5

0.5

2.8

3.0

2.0

2.3

2.4

2.6

2.2

3.0

1.7

2.1

2.1

1.3

3.3

2.8

0.9

1.6

2.4




7jan2017

3.9

2.3

2.7 3.0

1.2

3.7

3.9

3.6

3.7

3.4

3.8

3.1

0.4

3.7

4.1

2.6

2.8

3.0

3.9

2.9

4.0

1.9

2.4

2.2

1.1

4.4

3.7

1.4

1.4

2.7

8jan2017

3.8

1.4

2.2 2.4 3.6

3.5

3.5

3.6

3.0

3.3

2.8

3.3

4.0

1.5

1.7

2.3

3.9

2.4

3.7

1.5

1.8

1.1

4.3

3.4

0.8 2.3

9jan2017

3.0

1.0 1.2 2.8

2.7

2.5

2.8

1.8

2.3

1.6

2.7

3.3

0.3

0.4

1.2

3.3

1.6

3.2

0.3 3.7

2.3

0.9

10jan2017

1.6

1.5

1.3

1.1

1.4

0.3

1.0

0.1

1.4

2.1

2.0

0.2

2.0

2.5

1.0

11jan2017

0.6

0.7

0.4

1.0

12jan2017

13jan2017

14jan2017

15jan2017

1.5 0.8

0.8

16jan2017

0.3

2.8

1.5

1.4

1.5

2.6

1.7

2.4

0.7

17jan2017

2.2

1.9

2.5 2.6

1.6

4.1

3.9

2.3

1.9

2.3

3.3

2.6

1.8

4.1

3.8

1.7

3.0

2.5

2.1

2.9

4.0

2.1

2.2

2.1

1.5

3.9

2.7

0.3

2.1

1.8

18jan2017

3.4

3.3

3.9 4.0

3.2

5.4

5.6

3.6

3.4

3.7

4.7

4.0

3.4

5.5

5.0

3.6

4.6

4.1

3.8

4.5

5.5

3.6

3.8

3.4

2.2

5.2

1.9

4.0

2.3

3.6

3.7

19jan2017

4.6

4.5

5.1 5.1

4.0

6.2

6.3

4.9

4.6

4.9

5.6

5.1

4.1

6.3

5.8

4.1

5.4

4.9

4.9

5.2

6.2

4.6

4.7

4.5

2.2

6.0

2.7

5.0

3.3

4.5

4.9

20jan2017

5.2

5.1

5.7 5.6

4.4

7.0

7.2

5.5

5.2

5.5

6.4

5.8

4.1

7.2

6.8

4.1

6.0

5.5

5.6

5.9

6.8

5.1

4.9

5.1

2.4

6.8

2.7

5.6

3.7

4.7

5.7

21jan2017

5.2

4.8

5.4 5.3

3.9

6.6

6.8

5.7

5.4

5.6

6.4

5.8

3.4

6.8

7.1

3.5

5.4

5.4

5.9

5.6

6.6

5.2

4.6

4.6

1.7

7.1

2.2

5.7

3.9

4.2

5.8

22jan2017

5.9

4.7

5.7 5.7

3.4

7.0

6.6

6.3

6.0

6.4

7.0

6.5

2.7

6.6

7.8

3.3

5.3

5.9

6.4

5.5

6.6

5.8

4.7

4.5

1.5

7.7

1.9

6.5

4.6

4.2

6.7




23jan2017

6.9

5.0

5.5 5.4

3.7

7.9

7.2

6.3

6.3

6.3

7.8

6.2

2.2

7.2

8.8

3.5

5.9

6.0

6.9

5.9

7.1

6.0

5.1

4.6

1.2

8.7

1.4

6.7

4.6

4.5

6.8

24jan2017

6.9

4.6

5.1 5.0

2.9

7.8

6.8

6.1

6.3

5.9

7.7

5.8

1.0

7.1

8.8

3.3

5.8

5.7

7.0

5.7

7.0

5.3

4.5

4.3

0.6

8.7

1.2

6.6

4.5

3.5

6.5

25jan2017

6.9

4.3

4.9 4.9

2.8

7.8

6.6

6.0

6.3

5.8

7.7

5.6

0.5

7.0

9.2

3.1

5.8

5.4

7.2

5.5

7.1

4.9

4.3

4.0

0.6

9.1

0.6

6.5

4.4

3.2

6.3

26jan2017

7.5

4.7

5.5 5.5

3.2

8.4

7.0

6.6

7.1

6.6

8.5

6.2

1.9

7.5

10.0

3.6

6.2

6.0

8.1

6.0

7.5

5.1

4.9

4.9

1.6

9.9

1.5

7.2

5.0

3.5

7.0

27jan2017

7.6

5.0

6.1 6.2

3.7

8.7

7.4

7.1

7.5

7.3

9.0

6.9

2.9

7.9

10.4

4.2

6.6

6.5

8.4

6.5

7.8

5.8

5.5

5.6

2.2

10.2

1.7

7.5

5.6

4.2

7.7

28jan2017

6.6

4.2

5.1 5.1

2.9

7.6

6.7

5.8

6.6

6.0

8.0

5.9

1.0

7.4

9.2

3.4

5.6

5.4

6.4

5.6

7.3

4.1

4.4

4.8

1.8

8.9

0.1

6.5

3.7

2.7

5.7

29jan2017

4.9

2.8

3.5 3.4

1.2

6.1

5.1

3.9

4.8

4.0

6.2

4.1

6.0

7.6

2.1

4.2

3.8

4.5

4.1

6.0

2.3

2.7

3.6

0.9

7.2

4.5

1.9

0.6

3.7

30jan2017

3.4

1.4

2.0 1.8 4.7

3.9

2.2

3.2

2.4

4.8

2.5

4.8

6.2

1.0

3.0

2.3

2.9

2.7

5.0

0.6

1.2

2.5

5.8

3.0

0.1 1.9

31jan2017

2.2

0.3

0.8 0.6 3.7

3.0

1.0

1.9

1.1

3.7

1.3

3.9

5.1

2.0

1.2

1.7

1.7

4.4

1.5

4.8

1.7

0.7

1feb2017

1.4

3.0

2.3

0.1

1.3

0.3

2.9

0.4

3.3

4.5

1.2

0.4

1.3

0.9

3.8

0.7

4.1

1.0

2feb2017

1.6

1.2

1.4

2.0

2.8

2.9

2.7

3feb2017

1.0

4feb2017

5feb2017

6feb2017

7feb2017




8feb2017 0.7

0.3

0.8

0.6

0.5

0.7

0.7

0.5

9feb2017

1.5

0.7 1.2

1.3

1.5

2.1

1.8

0.5

0.6

2.2

1.1

1.6

1.9

1.6

1.8

2.2

0.6

1.0

1.9

1.4

1.9

1.4

10feb2017

1.0

2.8

2.2 2.6

2.5

3.0

3.5

1.2

0.5

1.5

3.1

1.9

1.8

3.6

2.4

3.1

3.4

3.0

3.3

3.6

1.9

2.4

3.3

2.7

3.2

0.6

1.6

0.6

2.6

1.4

11feb2017

1.0

3.5

2.8 3.2

3.1

3.6

4.0

1.5

0.5

2.0

3.7

2.5

2.5

4.2

2.8

3.6

4.0

3.6

3.9

4.0

2.7

3.0

3.9

3.3

3.7

1.2

1.9

1.2

3.3

2.1

12feb2017

0.6

3.7

2.7 3.2

3.3

3.6

4.3

1.1 1.8

3.8

2.3

2.4

4.3

2.6

3.9

4.2

3.8

4.1

4.4

2.6

3.1

4.2

3.5

3.8

1.0

1.7

1.0

3.5

1.9

13feb2017

3.8

2.4 3.1

3.3

3.6

4.5

0.3 1.2

4.0

2.1

2.0

4.5

2.4

4.1

4.4

4.1

4.3

4.7

2.3

3.0

4.3

3.6

3.8

0.1

1.3

3.6

1.2

14feb2017

3.4

1.5 2.2

2.8

2.8

4.2

0.1

3.6

1.3

1.0

4.0

1.5

3.8

3.9

3.6

3.8

4.7

1.4

2.3

3.9

3.5

3.3

0.4

3.1

15feb2017

2.6

0.2 0.8

1.9

1.7

4.0

3.3

0.2

3.6

0.8

3.1

2.9

2.8

3.3

4.5

1.0

3.2

3.2

2.9

1.3

16feb2017

0.5

1.7

0.8

1.5

0.9

0.6

0.4

1.2

2.8

1.5

1.9

0.2

17feb2017

1.0

0.2 18feb2017

19feb2017

20feb2017

21feb2017

22feb2017

23feb2017




24feb2017

25feb2017

26feb2017

27feb2017

28feb2017

1mrt2017

2mrt2017

3mrt2017

4mrt2017

5mrt2017

6mrt2017

7mrt2017

8mrt2017

9mrt2017

10mrt2017

11mrt2017




20nov2017

21nov2017

22nov2017

23nov2017

24nov2017

25nov2017

26nov2017

27nov2017

28nov2017

29nov2017

30nov2017

1dec2017

0.3

2dec2017

1.0

1.2

0.9 0.6 1.4

0.8

1.0 1.4

1.8

0.7

0.6

0.6

0.5

0.8

1.1

0.7

0.8 0.6

1.3

0.3 1.5

3dec2017

1.4

0.5

0.8 0.5 1.6

0.5

1.4

0.6

1.8

1.7

0.9

0.5

1.2

0.7

0.8

0.9

0.3

0.3 1.0

1.7

1.1 1.5

4dec2017

0.3

0.3

0.3 0.6

0.1

0.1

0.5

0.3

5dec2017




6dec2017

7dec2017

8dec2017

9dec2017

10dec2017

11dec2017

0.3

0.7

1.1 0.6

0.912dec2017 0.5

0.9 0.4

0.813dec2017 0.1

0.5

0.4

14dec2017

15dec2017

16dec2017

17dec2017

18dec2017

19dec2017

20dec2017

21dec2017




22dec2017

23dec2017

24dec2017

25dec2017

26dec2017

27dec2017

28dec2017

29dec2017

30dec2017

31dec2017

1jan2018

2jan2018

3jan2018

4jan2018

5jan2018

6jan2018




7jan2018

8jan2018

0.3

1.4

0.8

1.0

0.9

0.5

0.7

1.4

0.9

0.8

9jan2018 1.3

0.7

0.9

0.8

0.2

0.6

1.5

0.8

0.7

10jan2018 0.4

0.7

11jan2018

12jan2018

13jan2018

14jan2018

15jan2018

16jan2018

17jan2018

18jan2018

19jan2018

20jan2018

21jan2018

22jan2018




23jan2018

24jan2018

25jan2018

26jan2018

27jan2018

28jan2018

29jan2018

30jan2018

31jan2018

1feb2018

2feb2018

3feb2018

4feb2018

5feb2018

0.9

1.3

6feb2018

1.0

0.6

0.9 1.4 1.6

1.6

0.8

1.6

1.0

1.8

0.8

0.3

1.4

1.6

0.7

1.1

0.9

1.9

1.0

1.3

1.0

0.8

1.0

1.6

1.6

0.8

1.2

7feb2018

2.2

2.6

2.7 2.8

1.7

3.4

3.5

2.3

2.5

2.6

3.4

2.5

1.7

3.1

3.3

2.0

2.9

2.5

2.8

2.6

3.1

2.5

2.2

2.6

2.2

3.5

0.9

2.9

1.6

0.9

3.0

2.7




8feb2018

4.0

2.5

2.9 3.1

1.4

4.9

4.8

3.8

3.9

3.4

4.7

2.9

1.3

4.4

4.7

2.6

3.1

2.8

4.2

3.1

4.3

2.4

2.2

2.5

1.9

5.1

0.5

4.3

1.6

0.9

2.7

3.2

9feb2018

4.2

2.0

2.7 2.7

0.8

5.0

5.0

4.0

4.4

3.4

4.9

2.7

0.5

4.7

5.0

2.4

3.0

2.6

4.8

3.0

4.7

1.8

1.8

2.0

1.3

5.5

4.5

1.2

0.2

1.9

2.6

10feb2018

3.8

1.8

2.4 2.4

0.5

4.7

5.0

3.5

4.0

2.9

4.6

2.4

4.6

4.7

2.3

2.8

2.3

4.5

2.8

4.9

1.4

1.5

1.6

0.9

5.3

4.0

0.6

1.5

2.0

11feb2018

2.8

0.5

1.0 1.1 3.8

4.2

2.4

3.0

1.6

3.7

1.1

3.9

4.0

1.5

1.8

1.2

3.7

1.8

4.3

0.1

0.5

4.5

3.0

0.6

12feb2018

1.9

0.1 3.1

3.4

1.6

2.2

0.5

3.0

0.2

3.1

3.2

0.4

0.8

0.3

2.9

0.9

3.5

3.9

2.3

13feb2018

1.5

2.8

3.1

1.1

2.0

0.2

2.6

2.8

2.9

0.3

2.6

0.4

3.2

3.5

1.9

14feb2018

15feb2018

16feb2018

17feb2018

18feb2018

19feb2018

20feb2018

21feb2018

22feb2018

23feb2018

IJsdikte op basis van de temperatuur · Berekende ijsdikte in cm om 11 uur op de genoemde dag. Rode...

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Transcript of IJsdikte op basis van de temperatuur · Berekende ijsdikte in cm om 11 uur op de genoemde dag. Rode...