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Official Journal of the Asia Oceania Geosciences Society (AOGS)

Table 3 Comparisons of yearly means and water level increases acquired by combining ICESat-2 and GEDI between in situ data for four lakes

From: Performance evaluation of combining ICESat-2 and GEDI laser altimetry missions for inland lake level retrievals

Lakes

Yearly change

Estimated lake level (m)

In situ lake level (m)

2018

2019

2020

2021

2018

2019

2020

2021

Chaohu

Mean

7.85

7.38

7.86

7.50

9.08

8.90

9.42

8.93

Increase

 

− 0.47

0.48

− 0.35

 

− 0.19

0.53

− 0.50

Hongze

Mean

12.42

12.25

12.45

12.99

12.58

12.32

12.43

13.00

Increase

 

− 0.17

0.20

0.54

 

− 0.26

0.15

0.53

Gaoyou

Mean

5.97

5.58

5.76

/

6.19

5.71

6.01

/

Increase

 

− 0.39

0.18

/

 

− 0.47

0.30

/

Taihu

Mean

1.54

1.56

1.72

1.36

3.32

3.31

3.47

3.20

Increase

 

0.02

0.16

− 0.36

 

− 0.01

0.16

− 0.27