Table 1.
Overview of the UoS_Data_Rescue dataset, including the distribution of annotated and unlabeled logbook images across 34 regions. The checkmark () indicates that the logbooks include a mix of handwritten and typed text, highlighting the diversity and complexity of the dataset
| Location | Year | # Labelled images | Average cells/image | Average cells/image (hard-to-annotate) | # Unlabelled images |
|---|---|---|---|---|---|
| Sources: https://digital.nmla.metoffice.gov.uk/ | |||||
| UK | 1830-1930 | 97 | 208.959 | 3.804 | – |
| Natal, Africa | 1870 | 26 | 99.429 | 0.048 | 46 |
| Artics | 1880 | 82 | 477.122 | 30.220 | – |
| Devon, UK | 1890-1940 | 33 | 229.545 | 1.758 | – |
| Ben Nevis, UK | 1890 | 97 | 1511.247 | 11.557 | – |
| UK and World | 1900 | 93 | 622.793 | 31.141 | 1330 |
| Philippines | 1900 | 24 | 740.292 | 5.458 | 6077 |
| India (NOAA) | 1930 | 24 | 2197.429 | 7.476 | 380 |
| India (MO) | 1970 | 24 | 1971.667 | 17.208 | 276 |
| Sources: https://digital.nmla.metoffice.gov.uk/ | |||||
| Zanzibar | 1881-1882 | 8 | 133.500 | 9.250 | 12 |
| Blantyre | 1882 | – | – | – | 6 |
| Egypt | 1885-1886 | 6 | 699.500 | 17.667 | 9 |
| Morocco | 1891 | – | – | – | 2 |
| Sources: https://libguides.library.noaa.gov/weather-climate/foreign-climate | |||||
| Mauritius | 1862-1972 | 34 | 227.559 | 0.235 | 13887 |
| Algeria | 1877-1968 | 113 | 90.947 | 7.292 | 22356 |
| Madagascar | 1889-1968 | 40 | 148.775 | 2.925 | 10035 |
| Egypt | 1900-1966 | 51 | 148.137 | 6.412 | 44199 |
| Tunisia | 1907-1932 | 29 | 119.207 | 4.034 | 2531 |
| Uganda | 1909-1937 | 5 | 188.000 | 0.000 | 456 |
| Mozambique | 1909-1968 | 44 | 289.364 | 2.909 | 19547 |
| South Africa | 1920-1982 | 74 | 109.946 | 0.757 | 36502 |
| Libya | 1922-1931 | 3 | 221.000 | 12.000 | 501 |
| Kenya | 1936-1937 | – | – | – | 31 |
| Angola | 1937-1952 | – | – | – | 1840 |
| Namibia | 1941-1948 | – | – | – | 52 |
| Djibouti | 1950-1974 | – | – | – | 1695 |
| Cameroon | 1950-1975 | – | – | – | 1830 |
| Morocco | 1954-1978 | 58 | 223.914 | 9.724 | 10575 |
| Guinea-Bissau | 1957-1972 | – | – | – | 3331 |
| Sources: https://catalog.archives.gov | |||||
| Bear | 1940 | 12 | 792.583 | 1.917 | 21 |
| Tennessee | 1946 | 36 | 880.611 | 1.472 | 17 |
| Sources: http://archives-climat.fr | |||||
| Ambanja Août-décembre | 1904 | 5 | 559.200 | 95.800 | – |
| Diego-Suarez | 1949 | 47 | 640.447 | 30.255 | 1 |
| Tromelin | 1956 | 48 | 651.396 | 33.021 | – |
| Total | – | 1113 | – | – | 177545 |
Original images sourced with permission from UK Met Office (MO), US NOAA and weatheerrescue.org (University of Reading) for the https://glosat.org/ project.