Geostatistical Analysis of Rainfall Temperature and Evaporation Data of Owerri for Ten Years

作     者：A. O. I. Selemo S. E. Ananaba Johnbosco O. Nwagbara V. E. Egejuru V. Nwugha 

作者机构：Department of Geosciences School of Science Federal University of Technology Owerri Nigeria 

出 版 物：《Atmospheric and Climate Sciences》 (大气和气候科学（英文）)

年 卷 期：2012年第2卷第2期

页      面：196-205页

学科分类：07[理学] 070601[理学-气象学] 0706[理学-大气科学] 

主　　题：Evapotranspiration Rainfall Temperature Oscillations Precipitation Surface Runoff Recharge Water Balance 

摘      要：Rainfall, evaporation and temperature data of Owerri for ten years (Figure 1) (1998-2007) were acquired. The data were analyzed using standard statistical measures and climatological normal (Figure 2). The results show that the rainfall pattern exhibits some oscillations indicating annual bimodal distribution of rainfall. The temperature reached its lowest value of 27.75?C in 1999. Thereafter, a steady increase in temperature was noticed. From 2002, some variation in evaporation data was observed. The potential evapotranspiration shows some correlation with temperature. This variation in weather parameters may be attributed to climate change.