Fig. 3: Percentage of correct prediction of November-December-January-February season total crop-specific chill sufficiency.
From: Seasonal climate forecasts show skill in predicting winter chill for specialty crops in California
The 1st row includes forecast of walnut at lead times of (a) 1-month, (b) 1–4-months, (c) 2–5-months, and (d) 3-6-months. Similarly, the 2nd row (e–h), 3rd row (i–l) 4th row (m–p), and 5th row (q–t) contain the corresponding forecasts for pistachio, cherry, plum, and pear respectively. The forecast was considered correct if total chill accumulation in the forecast and actual NDJF season, estimated using the reference PRISM data, both were in the same direction — either above or below the Chill Hours threshold of the corresponding crops— in each year from 1993 to 2015.
