Impact of Climate Change and Variability on Wheat and Corn Production in Buenos Aires, Argentina
Impact of Climate Change and Variability on Wheat and Corn Production in Buenos Aires, Argentina作者机构：Department of Geography University of Winnipeg Winnipeg Canada
出 版 物：《American Journal of Climate Change》 (美国气候变化期刊（英文）)
年 卷 期：2014年第3卷第2期
页 面：145-152页
学科分类：07[理学] 070601[理学-气象学] 0706[理学-大气科学]
主 题：Climate Change of Buenos Aires Teleconnections PNA AO Sunspot Number AAO ENSO Wheat Corn Production and Export
摘 要：From the Global Historical Climate Network (GHCN-V3), monthly mean summer (DJF) temperature (1856-2012) and total precipitation (1861-2012) are analyzed in correlation with four climate modes and sunspot number to better understand the role of teleconnections on Buenos Aires’ (Argentina) climate. A general increase in temperature and precipitation was observed. Temperature has increased by about 1.8°C and precipitation has increased by about 300 mm in the past century and a half. Indices of Arctic Oscillation (AO), Pacific North American (PNA), Antarctic Oscillation (AAO), and El Nino-Southern Oscillation (ENSO) are evaluated to study their effects on wheat and corn production and export. AO and PNA show strong relationships with precipitation and temperature received. AAO and ENSO show strong negative correlations with precipitation patterns and weak correlations with temperature. Sunspot Number shows a positive correlation with temperature. ENSO phases are strongly linked with the wheat and corn production and export;during El Nino Buenos Aires tends to experience extremely wet summer weather, causing soggy fields and extremely dry summer weather during La Nina causing drought. Both of these conditions result in reducing wheat and corn production and export.
维普期刊数据库