Two HandsForms / rainfall ledger
Barrowford Res, 1920–1930
UK rainfall ledger, 10-year sheetGemma-4-31B-ITidentity: 12 months = written annual total
!
9 of 11 years accepted; routed: 1920, 1930
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 | 4.63 | 7.88 | 3.42 | 4.23 | 3.25 | 3.12 | 4.25 | 4.10 | 10.55 | 1.83 | — |
| Feb | 5.26 | 0.74 | 5.50 | 5.12 | 0.99 | 7.61 | 4.60 | 1.71 | 6.36 | 0.68 | — |
| Mar | 3.15 | 4.60 | 2.38 | 1.83 | 1.49 | 1.43 | 2.54 | 3.70 | 1.89 | 1.40 | — |
| Apr | 4.28 | 1.65 | 2.76 | 2.95 | 1.93 | 3.64 | 1.92 | 3.33 | 1.21 | 1.05 | — |
| May | 5.62 | 1.96 | 1.87 | 5.04 | 4.63 | 4.35 | 3.74 | 1.85 | 1.17 | 2.77 | — |
| Jun | 2.40 | 0.44 | 2.79 | 1.23 | 4.30 | 0.19 | 2.29 | 4.08 | 5.42 | 1.91 | — |
| Jul | 7.09 | 2.69 | 5.60 | 4.46 | 3.92 | 1.88 | 3.14 | 3.83 | 2.51 | 3.46 | — |
| Aug | 2.85 | 6.08 | 6.62 | 5.63 | 6.25 | 4.74 | 4.52 | 6.91 | 6.12 | 5.54 | — |
| Sep | 2.08 | 2.59 | 3.67 | 5.85 | 4.34 | 3.67 | 4.70 | 6.48 | 1.15 | 2.13 | — |
| Oct | 1.57 | 2.31 | 1.06 | 5.96 | 4.18 | 4.59 | 4.59 | 4.92 | 4.88 | 5.74 | — |
| Nov | 2.80 | 2.39 | 2.55 | 6.74 | 4.34 | 2.33 | 6.01 | 4.95 | 6.42 | 6.87 | — |
| Dec | 2.81 | 7.14 | 4.57 | 3.71 | 3.84 | 4.80 | 1.64 | 0.97 | 2.53 | 9.09 | — |
| Written total | 44.52 | 40.47 | 42.79 | 52.75 | 43.46 | 42.35 | 43.94 | 46.83 | 50.21 | 42.47 | — |
| Sum of months | 44.54 | 40.47 | 42.79 | 52.75 | 43.46 | 42.35 | 43.94 | 46.83 | 50.21 | 42.47 | — |
| ✕ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✕ |
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, BARROWFORD-RES PDF page 5 (https://raw.githubusercontent.com/ed-hawkins/rainfall-rescue/master/DATA/BARROWFORD-RES/BARROWFORD-RES.pdf), volunteer transcription sourceERROR_TYRain_1920-1930_20_pt1-page-152.csv. Hawkins et al. (2022), Geoscience Data Journal; the source repository carries no licence file, so the sheet image is linked, not copied.