Two Hands
Forms / rainfall ledger

Balcombe Highley Manor, 1920–1930

UK rainfall ledger, 10-year sheetGemma-4-31B-ITidentity: 12 months = written annual total
Original sheet (PDF page 5) ↗
!
9 of 11 years accepted; routed: 1927, 1930
A year is accepted only when its twelve monthly values sum to the clerk's handwritten annual total (within 0.01 in).
Month19201921192219231924192519261927192819291930
Jan 4.75 3.91 6.42 2.25 3.19 3.66 4.21 3.04 5.00 1.51 —
Feb 1.23 1.05 3.62 6.99 1.05 5.30 3.55 5.63 1.98 0.83 —
Mar 2.57 1.97 3.71 3.80 2.30 1.12 0.51 3.97 2.84 0.01 —
Apr 3.04 1.59 4.96 3.86 4.27 3.27 4.22 2.41 2.41 1.21 —
May 1.05 2.23 1.09 4.38 5.48 3.20 1.68 1.21 1.63 2.17 —
Jun 1.57 0.09 2.40 0.60 4.33 0.17 4.32 5.28 3.29 1.76 —
Jul 7.71 0.31 6.04 5.19 4.85 4.91 2.25 3.73 2.28 4.17 —
Aug 2.05 2.89 4.08 3.07 3.69 2.63 2.47 5.80 4.01 2.91 —
Sep 4.73 1.05 2.66 2.52 3.57 2.88 0.80 5.34 1.38 1.40 —
Oct 2.10 2.06 1.62 8.82 4.08 4.09 2.64 2.52 7.39 4.29 —
Nov 2.77 2.62 2.74 2.47 3.30 3.81 6.66 4.22 3.54 8.05 —
Dec 3.79 3.31 5.81 4.73 4.84 3.76 0.68 5.76 4.20 6.98 —
Written total37.3623.0845.1548.6844.9538.8033.9949.1339.9535.29—
Sum of months37.3623.0845.1548.6844.9538.8033.9948.9139.9535.29—
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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-HIGHLEY-MANOR PDF page 5 (https://raw.githubusercontent.com/ed-hawkins/rainfall-rescue/master/DATA/BALCOMBE-HIGHLEY-MANOR/BALCOMBE-HIGHLEY-MANOR.pdf), volunteer transcription sourceTYRain_1920-1930_04_pt1-page-169.csv. Hawkins et al. (2022), Geoscience Data Journal; the source repository carries no licence file, so the sheet image is linked, not copied.