Two HandsForms / rainfall ledger
Ardnamurchan Lighthouse, 1880–1889
UK rainfall ledger, 10-year sheetGemma-4-31B-ITidentity: 12 months = written annual total
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9 of 10 years accepted; routed: 1882
A year is accepted only when its twelve monthly values sum to the clerk's handwritten annual total (within 0.01 in).
| Month | 1880 | 1881 | 1882 | 1883 | 1884 | 1885 | 1886 | 1887 | 1888 | 1889 |
|---|---|---|---|---|---|---|---|---|---|---|
| Jan | 3.87 | 0.69 | 5.49 | 4.76 | 6.94 | 3.51 | 4.34 | 4.39 | 3.50 | 2.96 |
| Feb | 4.94 | 5.30 | 4.04 | 6.02 | 4.78 | 7.08 | 2.16 | 2.51 | 1.62 | 2.40 |
| Mar | 2.67 | 3.20 | 0.78 | 1.74 | 4.11 | 1.89 | 2.02 | 2.73 | 2.64 | 1.99 |
| Apr | 3.51 | 0.87 | 4.13 | 2.01 | 0.94 | 2.34 | 2.18 | 2.49 | 1.97 | 1.30 |
| May | 1.24 | 2.01 | 3.67 | 1.99 | 3.69 | 2.70 | 1.96 | 1.17 | 2.59 | 2.19 |
| Jun | 1.78 | 3.78 | 3.50 | 2.92 | 0.94 | 3.00 | 2.33 | 1.62 | 2.55 | 0.99 |
| Jul | 2.14 | 5.94 | 3.79 | 1.87 | 4.18 | 2.52 | 3.72 | 3.43 | 3.14 | 0.88 |
| Aug | 0.94 | 4.01 | 3.10 | 5.32 | 4.88 | 1.00 | 4.20 | 1.99 | 3.19 | 3.34 |
| Sep | 3.97 | 3.22 | 6.26 | 2.63 | 3.60 | 5.48 | 3.52 | 3.02 | 2.14 | 2.72 |
| Oct | 1.09 | 3.07 | 5.44 | 6.12 | 5.93 | 4.57 | 3.63 | 3.04 | 3.12 | 2.78 |
| Nov | 5.02 | 5.89 | 0.80 | 6.32 | 6.89 | 2.84 | 5.03 | 4.59 | 4.24 | 2.64 |
| Dec | 5.24 | 7.78 | 4.88 | 5.93 | 5.11 | 4.88 | 4.42 | 4.10 | 3.49 | 4.08 |
| Written total | 36.41 | 45.76 | 56.88 | 47.63 | 51.99 | 41.81 | 39.51 | 35.08 | 34.19 | 28.27 |
| Sum of months | 36.41 | 45.76 | 45.88 | 47.63 | 51.99 | 41.81 | 39.51 | 35.08 | 34.19 | 28.27 |
| ✓ | ✓ | ✕ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ |
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 5 (https://raw.githubusercontent.com/ed-hawkins/rainfall-rescue/master/DATA/ARDNAMURCHAN-LIGHTHOUSE/ARDNAMURCHAN-LIGHTHOUSE.pdf), volunteer transcription sourceTYRain_1880-1889_15_pt1-page-042.csv. Hawkins et al. (2022), Geoscience Data Journal; the source repository carries no licence file, so the sheet image is linked, not copied.