Two HandsForms / rainfall ledger
Ardnamurchan Lighthouse, 1900–1909
UK rainfall ledger, 10-year sheetGemma-4-31B-ITidentity: 12 months = written annual total
Accepted: 0 cells to key
A year is accepted only when its twelve monthly values sum to the clerk's handwritten annual total (within 0.01 in).
| Month | 1900 | 1901 | 1902 | 1903 | 1904 | 1905 | 1906 | 1907 | 1908 | 1909 |
|---|---|---|---|---|---|---|---|---|---|---|
| Jan | 7.54 | 3.63 | 4.28 | 6.08 | 4.75 | 2.42 | 4.48 | 4.65 | 5.61 | 6.43 |
| Feb | 2.39 | 2.67 | 1.19 | 7.16 | 4.02 | 3.59 | 4.14 | 4.49 | 4.82 | 3.13 |
| Mar | 0.54 | 2.09 | 4.44 | 5.52 | 1.56 | 5.53 | 1.86 | 4.36 | 4.81 | 1.85 |
| Apr | 3.79 | 3.25 | 3.12 | 2.16 | 2.17 | 1.70 | 2.55 | 2.82 | 0.70 | 3.62 |
| May | 2.73 | 1.10 | 2.87 | 2.38 | 1.37 | 2.66 | 3.25 | 2.76 | 1.93 | 3.30 |
| Jun | 3.10 | 3.12 | 1.44 | 1.44 | 2.15 | 1.25 | 1.83 | 4.21 | 4.88 | 1.38 |
| Jul | 3.64 | 1.34 | 3.75 | 4.09 | 0.98 | 4.55 | 4.07 | 2.55 | 4.93 | 5.55 |
| Aug | 5.33 | 5.08 | 3.23 | 5.57 | 5.16 | 3.60 | 3.67 | 6.68 | 5.15 | 3.90 |
| Sep | 4.87 | 4.75 | 6.85 | 3.25 | 2.06 | 5.17 | 3.55 | 2.10 | 6.63 | 3.15 |
| Oct | 6.43 | 6.56 | 4.34 | 8.16 | 5.31 | 4.76 | 5.66 | 3.88 | 1.28 | 7.18 |
| Nov | 4.45 | 3.74 | 4.87 | 3.76 | 4.00 | 2.88 | 4.41 | 5.76 | 4.30 | 3.43 |
| Dec | 8.21 | 5.19 | 4.83 | 3.44 | 2.74 | 3.10 | 5.57 | 6.00 | 5.95 | 5.85 |
| Written total | 53.02 | 42.52 | 45.21 | 53.01 | 36.27 | 41.21 | 45.04 | 50.26 | 50.99 | 48.77 |
| Sum of months | 53.02 | 42.52 | 45.21 | 53.01 | 36.27 | 41.21 | 45.04 | 50.26 | 50.99 | 48.77 |
| ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ |
Values as read by Gemma-4-31B-IT (whole sheet + 3 zoomed strips (page + 3 strips, docs/sources/ledger-rescue-pilot.md §3)). Amber shading: a routed year. Orange numbers differ from the volunteers' transcription (hover for their value); the gate never sees the volunteers' values, they only grade it.
Source: Rainfall Rescue, ARDNAMURCHAN-LIGHTHOUSE PDF page 7 (https://raw.githubusercontent.com/ed-hawkins/rainfall-rescue/master/DATA/ARDNAMURCHAN-LIGHTHOUSE/ARDNAMURCHAN-LIGHTHOUSE.pdf), volunteer transcription sourceTYRain_1900-1909_28_pt1-page-156.csv. Hawkins et al. (2022), Geoscience Data Journal; the source repository carries no licence file, so the sheet image is linked, not copied.