Table 5 An overview of the length between phases from 2006 to 2020. Accuracy is dependent on the temporal resolution of observations.

From: European beech spring phenological phase prediction with UAV-derived multispectral indices and machine learning regression

 

2006

2007

2008

2009

2010

2011

2012

2013

2014

2015

2016

2017

2018

2019

2020

Min

Max

Mean

SD

Phase 1–2

4

4

2

2

4

11

6

5

4

8

5

3

3

5

6

2

11

4.8

2.3

Phase 2–3

6

3

4

6

5

5

8

3

5

7

4

5

5

8

7

3

8

5.4

1.6

Phase 3–4

14

13

12

12

11

12

10

9

12

13

8

8

7

14

8

7

14

10.9

2.4

Phase 4–5

11

15

14

10

12

4

15

10

14

13

11

12

8

11

10

4

15

11.3

2.9

Phase 1–4

24

20

18

20

20

28

24

17

21

28

17

16

15

27

21

15

28

21.1

4.3

Phase 1–5

35

35

32

30

32

32

39

27

35

41

29

28

23

38

31

23

41

32.4

4.9

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