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Surface areas of Morskie Oko and Wielki Staw in the period from 1880 to 2021_
| Morskie Oko | Wielki Staw | ||||
|---|---|---|---|---|---|
| Year1 | Author/source | Area [ha] | Year1 | Author/source | Area [ha] | 
| 1880 | E. Dziewulski | 30 | 1880 | E. Dziewulski | 33 | 
| 1910 | L. Sawicki | 33.42 | 1910 | L. Sawicki | 35.78 | 
| 1934 | K. Śliwerski | 34.54 | 1934 | K. Śliwerski | 34.14 | 
| 1964 | Aerial photo 7b_4328 | 33.07 | 1964 | Aerial photo 7b_4328 | 34.33 | 
| 2009 | Orthophotomap | 32.95 | 2009 | Orthophotomap | 34.44 | 
| 2011 | A. Choiński | 33.39 | – | – | – | 
| 2012 | J. Urbański et al. | 32.62 | – | – | – | 
| 2021 | Orthophotomap | 32.93 | 2021 | Orthophotomap | 34.44 |