STUDY OF TIME TREND CHANGES IN ANNUAL MEANTEMPERATURE OF IRAN

Q: How can I download an article?

To download an article from SID, first log in to the site, search for the article title, and click on the 'Download Article' option.

Q: How can I download an ISI article?

To download an ISI article on SID, enter the keyword or article title in the search bar, view the relevant results, click on the desired article, and select the 'Download Article' option.

Q: How can I access the SID database?

To access the SID database, visit SID.ir, create an account, and log in to access scientific resources.

Q: Is downloading articles from SID free?

Some articles on SID are available for free, while others require payment. Details are specified on the article's page.

SHIRGHOLAMI H.; GHAHRAMAN B.

مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic Resources

Journal Paper

Paper Information

Journal: Journal of Water and Soil Science Year:2005 | Volume: | Issue: Page(s): 24-39

Download Full-Text

Persian Verion

View:

4,034

Download:

Cites:

Information Journal Paper

Title

STUDY OF TIME TREND CHANGES IN ANNUAL MEANTEMPERATURE OF IRAN

Author(s)

SHIRGHOLAMI H. | GHAHRAMAN B. | Issue Writer Certificate

Keywords

TEMPERATUREQ2

CLIMATEQ2

TIME TRENDQ3

IRAN.Q3

Abstract

A number of researches have indicated a gradual increase in mean TEMPERATURE throughout the world. Yet, there are some reports on the reduction of annual mean TEMPERATURE. In this research we investigated a long-term trend of annual mean TEMPERATURE in 34 synoptic stations in IRAN.(2 stations in cold and humid CLIMATEs; 14 in humid and moderate climates, 11 in Steppe CLIMATE and 7 in desert CLIMATE - folloWingKopen climatic division) with a minimum statistical record of 30 years by applying the minimum square-error and Man-Kendall methods (Wald-Wolfowitz method had a different result). The results confirmed a positive trend in 59% stations, while 41 % of the stations were negative for the whole timehorizon of data. Considering the significance level, 3 zones of positive, negative, and no trends for annual mean TEMPERATURE were detected in IRAN. However, it was hard to define a specific spatial theme for such a division. By taking another approach, we proceeded with a shared statistical time period of 1968-1998 for all stations. In this case, 68% of the stations showed a positive trend, while the remaining 32% was negative. There were some shifts in direction from one trend to another in some of the stations in the study, yet no well-defined spatial structure was reported. In contrast, at 5% level of significance, 44, 15 and 41 percentages of the stations demonstrated positive, negative, and no trend for annual mean TEMPERATURE, respectively. In general the behaVior was different for different CLIMATEs and no specific pattern was found. So, despite the fact that some stations did not show significant trends, one may hypothesize that more regions in future will experience higher TEMPERATURE values and their positive trends would be a clue for future warming.

Cites

References

Cite

APA: Copy

SHIRGHOLAMI, H., & GHAHRAMAN, B.. (2005). STUDY OF TIME TREND CHANGES IN ANNUAL MEANTEMPERATURE OF IRAN. WATER AND SOIL SCIENCE (JOURNAL OF SCIENCE AND TECHNOLOGY OF AGRICULTURE AND NATURAL RESOURCES), 9(1), 24-39. SID. https://sid.ir/paper/368157/en

Vancouver: Copy

SHIRGHOLAMI H., GHAHRAMAN B.. STUDY OF TIME TREND CHANGES IN ANNUAL MEANTEMPERATURE OF IRAN. WATER AND SOIL SCIENCE (JOURNAL OF SCIENCE AND TECHNOLOGY OF AGRICULTURE AND NATURAL RESOURCES)[Internet]. 2005;9(1):24-39. Available from: https://sid.ir/paper/368157/en

IEEE: Copy

H. SHIRGHOLAMI, and B. GHAHRAMAN, “STUDY OF TIME TREND CHANGES IN ANNUAL MEANTEMPERATURE OF IRAN,” WATER AND SOIL SCIENCE (JOURNAL OF SCIENCE AND TECHNOLOGY OF AGRICULTURE AND NATURAL RESOURCES), vol. 9, no. 1, pp. 24–39, 2005, [Online]. Available: https://sid.ir/paper/368157/en

Related Journal Papers