Analysis of long-term rainfall and air temperature patterns in Alexandria (Egypt)

被引：5

作者：

El-Geziry T.M. ^{[1
]}

机构：

[1] Laboratory of Physical Oceanography, Division of Marine Environment, National Institute of Oceanography and Fisheries (NIOF), Alexandria

来源：

Arabian Journal of Geosciences | 2021年 / 14卷 / 13期

关键词：

Air temperature; Alexandria; Climate change; Egypt; Rainfall; Trends;

D O I：

10.1007/s12517-021-07589-z

中图分类号：

学科分类号：

摘要：

Rainfall and air temperature are significant parameters to establish the climatic condition of a region and their patterns of variations are, nowadays, key elements to judge the issue of climate change. The present study affords an analysis of long-term rainfall and air temperature records to establish their trends of variations in Alexandria and to, therefore, conclude the presence or absence of climate change in this important City. The data set of the two parameters extended on monthly basis over 40 years from 1980 to 2019. The analyses and the trends of the two parameters were carried out by the MS Excel® 2010, reflecting increasing trends with rates of 2.94 mm/year and 0.04 °C/year in rainfall and air temperature, respectively. Results also revealed a positive relationship (+0.21) between mean annual rainfall and air temperature, while the mean monthly records of the two parameters reflected a negative relationship of − 0.72. From the trends investigation, it is expected that Alexandria will examine an increase in the number of rainy days in April, May and September. The mean annual rainfall anomaly was +19.38 mm an indication of an increasing rainfall trend while the mean annual air temperature anomaly for the study period was +0.3 °C showing that the mean annual temperatures are rising in the study area. Therefore, this increasing mean annual rainfall accompanied with rising mean temperatures is considered indicator of the presence of climate change that can be experienced in Alexandria. © 2021, Saudi Society for Geosciences.

引用

共 40 条

[1]

Abdel-Shafy H.I., El-Saharty A.A., Regelsberger M., Platzer C., Rainwater in Egypt: quantity, distribution and harvesting, Mediterr Mar Sci, 11, (2010)

[2]

Alpert P., Baldi M., Ilani R., Krichak S., Price C., Rodo X., Saaroni H., Ziv B., Kishcha P., Barkan J., Mariotti A., Xoplaki E., Chapter 2 Relations between climate variability in the Mediterranean region and the tropics: ENSO, South Asian and African monsoons, hurricanes and Saharan dust, Relations between climate variability in the Mediterranean region and the tropics: ENSO, South Asian and African monsoons, hurricanes and Saharan dust, pp. 149-177, (2006)

[3]

Buishand T., Brandsma T., Dependence of precipitation on temperature at Florence and Livorno (Italy), Clim Res, 12, pp. 53-63, (1999)

[4]

Chinago A.B., Analysis of rainfall trend, fluctuation and pattern over Port Harcourt, Niger Delta coastal environment of Nigeria, BIJ, 4, pp. 1-8, (2020)

[5]

Cong R.-G., Brady M., The interdependence between rainfall and temperature: copula analyses, The Sci World J, 2012, pp. 1-11, (2012)

[6]

El-Raey M., Impacts and implications of climate change for the coastal zones of Egypt, Coastal zones and climate change report, pp. 31-50, (2010)

[7]

Goubanova K., Li L., Extremes in temperature and precipitation around the Mediterranean basin in an ensemble of future climate scenario simulations, Glob Planet Chang, 57, pp. 27-42, (2007)

[8]

Hasanean H.M., Fluctuations of surface air temperature in the Eastern Mediterranean, Theoret Appl Climat, 68, pp. 75-87, (2001)

[9]

Risk Reduction of Extreme Climate Changes on the Coastal Zone of Alexandria, Egypt. Ph.D. Thesis, (2018)

[10]

Huho J.M., Ngaira J.K., Ogindo H.O., Masayi N., The changing rainfall pattern and the associated impacts on subsistence agriculture in Laikipia East District Kenya, J Geogr Reg Plann, 5, (2012)

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