TEMPRATURE TREND AND ATMOSPHERIC CO2 CONCENTRATION OVER IRAN IN RECENT DECADES

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AZIZI GHASEM; KARIMI AHMADABADI MOSTAFA; SABOKKHIZ ZAHRA

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Journal Paper

Paper Information

Journal: JOURNAL OF GEOGRAPHICAL SCIENCES Year:2005 | Volume:4 | Issue:5 Page(s): 25-44

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Information Journal Paper

Title

TEMPRATURE TREND AND ATMOSPHERIC CO2 CONCENTRATION OVER IRAN IN RECENT DECADES

Author(s)

AZIZI GHASEM | KARIMI AHMADABADI MOSTAFA | SABOKKHIZ ZAHRA | Issue Writer Certificate

Keywords

GLOBAL WARMINGQ1

CO2Q4

GREENHOUSE GASQ2

TEMPERATURE TRENDQ2

Abstract

In this article, an attempt was made to study the Iran’s trend of temperature in recent decades, dealing with the relationship between this trend and increase in the amount of CO2 in the atmosphere. First, stations with long-term data (since 1958: because data about CO2 was available since 1958) were selected, then those which missed data in two successive years, were deleted from the dataset and all the study was conducted just with 12 stations. In this research, in order to determine the authenticity of the data, autocorrelation test and run test were carried out and nonparametric Mann Kendall test was performed to determine its amount, direction and significance. According to the results obtained, in the most stations under consideration (synoptic stations) the increasing of temperature with different rates was observed, for example Abadan and Shahrood were not observed trend, Esfahan, Tabriz and Kerman slight positive trend, Babolsar and Zanjan moderate positive trend, Yazd, Kermanshah and Mashhad some high deal trend, Tehran and Boushehr high trend and Anzali moderate negative trend observed. It was supposed that there is a same relationship between the trend of increasing temperature in Iran and the growth in the amount of CO2 in the atmosphere.

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