✦ LIBER ✦

USA corn yields, the El Niñmo and agricultural drought: 1867–1988

✍ Scribed by Aul Handler

Publisher: John Wiley and Sons
Year: 1990
Tongue: English
Weight: 624 KB
Volume: 10
Category: Article
ISSN: 0899-8418
DOI: 10.1002/joc.3370100804

No coin nor oath required. For personal study only.

✦ Synopsis

Abstract

The magnitude of spatial and lagged correlation between the sea‐surface temperature anomalies of the eastern tropical Pacific Ocean (El NiñMo) and corn yield in the USA is presented. The record is not homogeneous in that the correlation level varies quite strongly over time. The period between 1910 and 1950 shows completely uncorrelated behaviour. In the most recent 40 years the correlation is found to be strongest in the region just south of the Great Lakes in the states of Illinois, Iowa, and Indiana. Correlation maps are presented that show the degree of association for the corn yield in those 41 states for which records are available. For the entire record the highest correlations occur with the sea‐surface temperature anomalies appearing after the corn is harvested in September to February of the following year. Since corn yields are a proxy for summer agricultural drought in the central part of the USA, the droughts during the period 1910 to 1950 must have had some other cause.

📜 SIMILAR VOLUMES

North pacific circulation anomalies, El

North pacific circulation anomalies, El Niñto and anomalous warmth over the North American continent in 1986–1988: Possible causes of the 1988 North American drought

✍ Gerd-Rainer Weber 📂 Article 📅 1990 🏛 John Wiley and Sons 🌐 English ⚖ 839 KB

## Abstract The relationships between 300/1000 mbar thickness anomalies over the North Pacific Ocean and thickness anomalies over the adjacent North American continent are investigated on the basis of monthly anomalies for the 34‐month period January 1986 to October 1988. It is found that in 21 out