Two HandsForms / rainfall ledger
Balcombe Gables, 1920–1930
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 | 1920 | 1921 | 1922 | 1923 | 1924 | 1925 | 1926 | 1927 | 1928 | 1929 | 1930 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Jan | 4.35 | 3.78 | 5.57 | 2.01 | 2.85 | 4.56 | 4.85 | 3.25 | 6.04 | 1.77 | 4.75 |
| Feb | 0.91 | 0.73 | 3.37 | 5.64 | 0.99 | 5.61 | 3.39 | 5.61 | 2.34 | 1.01 | 1.38 |
| Mar | 2.22 | 2.00 | 2.97 | 3.01 | 2.08 | 1.01 | 0.52 | 4.29 | 3.42 | 0.05 | 1.63 |
| Apr | 3.17 | 1.23 | 4.00 | 3.08 | 3.70 | 3.46 | 4.35 | 2.20 | 2.54 | 0.97 | 2.46 |
| May | 1.06 | 1.93 | 1.14 | 3.51 | 4.50 | 3.64 | 1.90 | 1.16 | 1.56 | 3.23 | 3.03 |
| Jun | 1.47 | 0.04 | 1.74 | 0.57 | 3.64 | 0.17 | 4.25 | 5.18 | 3.19 | 1.85 | 0.82 |
| Jul | 6.02 | 0.41 | 4.70 | 4.52 | 5.15 | 4.51 | 1.71 | 3.60 | 1.66 | 3.05 | 2.99 |
| Aug | 1.70 | 2.18 | 3.59 | 1.97 | 3.57 | 2.58 | 2.61 | 5.88 | 3.17 | 3.39 | 4.77 |
| Sep | 4.61 | 0.89 | 2.40 | 2.22 | 4.33 | 2.81 | 0.77 | 6.14 | 1.00 | 1.36 | 3.58 |
| Oct | 1.66 | 1.61 | 1.62 | 7.64 | 4.35 | 5.16 | 2.82 | 2.89 | 7.96 | 4.97 | 2.22 |
| Nov | 2.46 | 1.90 | 2.65 | 2.62 | 3.48 | 4.16 | 8.06 | 4.27 | 3.93 | 9.50 | 6.39 |
| Dec | 3.49 | 2.78 | 4.64 | 4.25 | 6.27 | 4.18 | 0.68 | 5.51 | 4.09 | 8.60 | 3.68 |
| Written total | 33.12 | 19.48 | 38.39 | 41.04 | 44.91 | 41.85 | 35.91 | 49.98 | 40.90 | 39.75 | 37.70 |
| Sum of months | 33.12 | 19.48 | 38.39 | 41.04 | 44.91 | 41.85 | 35.91 | 49.98 | 40.90 | 39.75 | 37.70 |
| ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ |
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, BALCOMBE-GABLES PDF page 7 (https://raw.githubusercontent.com/ed-hawkins/rainfall-rescue/master/DATA/BALCOMBE-GABLES/BALCOMBE-GABLES.pdf), volunteer transcription sourceTYRain_1920-1930_04_pt1-page-166.csv. Hawkins et al. (2022), Geoscience Data Journal; the source repository carries no licence file, so the sheet image is linked, not copied.