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首页> 外文期刊>Journal of Earth Science & Climatic Change >Precipitation and Temperature Trend Analysis in Mekelle city, Northern Ethiopia, the Case of Illala Meteorological Station
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Precipitation and Temperature Trend Analysis in Mekelle city, Northern Ethiopia, the Case of Illala Meteorological Station

机译：埃塞俄比亚北部埃米尔气象站的降水和温度趋势分析-以伊拉拉气象站为例

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Climate change has a significant impact on the environment as well as the social, economic. Tigray is one of the sensitive regions to climate variation particularly to precipitation and rainfall changes. In this study, we analysis trends in precipitation and temperature at annual, seasonal and monthly time scales for the periods of 1995-2014 for the Illala station which is located in Mekelle Agricultural research center, Tigray region. Instat+ software were used for analyzing the statistics as well as the excel spreadsheet and we were use the Non-parametric tests (such as Mann- Kendall and Sen’s Slope), linear regression, cumulative deviation curve techniques were used to determine climatic trends. The mean minimum temperature ranges between 10.2°C and 12.6°C, while, the mean maximum temperature varies between 22.3°C and 26.7°C From the analysis the monthly coefficient of variation (CV%) for both maximum and minimum temperature ranging from (6.9% in Oct) to (18.7% in Dec) for the average monthly rainfall ranging from 4.9% to 26% of coefficient of variation. from the analysis we were found that the monthly trend of precipitation which were May, June and July have an decreasing trend. While the both maximum and minimum temperature were found on the months of June, September and December the climate trend results showed that there is no negative or positive statistically significant trend in the study area, despite of slight precipitation decrease in the area. The period of 1995-2014. Which are not statistically significant annually and seasonally temperature data showed slight increase annually even though results are not statistically significant during the period of 1995-2014.
机译：气候变化对环境以及社会，经济都有重大影响。提格雷（Tigray）是气候变化特别是降水和降雨变化敏感地区之一。在这项研究中，我们分析了位于提格里州Mekelle农业研究中心的Illala站在1995-2014年期间的年度，季节性和月度尺度上的降水和温度趋势。 Instat +软件用于分析统计数据以及excel电子表格，我们使用了非参数测试（例如Mann-Kendall和Sen's Slope），线性回归，累积偏差曲线技术来确定气候趋势。平均最低温度在10.2°C至12.6°C之间，而平均最高温度在22.3°C至26.7°C之间变化。根据分析，最高和最低温度的月变化系数（CV％）为（平均月降雨量在10月的6.9％至12月的18.7％之间，变化系数从4.9％到26％不等。通过分析，我们发现5，6，7月份的月降水量趋势呈下降趋势。尽管在6月，9月和12月都发现了最高和最低温度，但气候趋势结果显示，尽管该地区降水略有减少，但在统计上没有负或正的统计显着趋势。 1995年至2014年。尽管在1995-2014年期间结果在统计上并不显着，但这些数据在年度和季节上均无统计学意义，但每年却略有增加。

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