Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1002/joc.6059 |
Trend analysis of tropospheric specific humidity over Iran during 1979-2016 | |
Darand, Mohammad1; Pazhooh, Farshad2; Saligheh, Mohammad2 | |
2019-08-01 | |
发表期刊 | INTERNATIONAL JOURNAL OF CLIMATOLOGY
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ISSN | 0899-8418 |
EISSN | 1097-0088 |
出版年 | 2019 |
卷号 | 39期号:10页码:4058-4071 |
文章类型 | Article |
语种 | 英语 |
国家 | Iran |
英文摘要 | In this study, the variation and trend of specific humidity (SH) of the troposphere (1,000-500hPa) over Iran was analysed using the monthly European Center for Medium Range Weather Forecasting (ECMWF) Re-Analysis Interim (ERA-Interim) gridded data from January 1979 to December 2016. By using nonparametric modified Mann-Kendall test, the trend of values for each gridded point was tested in eight different atmospheric levels at 95% confidence level. The Sen's slope estimator test was used to estimate the change rate. The findings showed that the annual trend of SH is decreasing in most of Iran and is only increasing on the northern and southern coast of the country. The highest increasing trend of the SH is observed on the southern coast of Iran in 1,000hPa. The regression line fitting on the standardized time series of Iran's area average SH showed that the highest decreasing rate occurred in the first layer (1,000-850hPa) and only the third layer (600-500hPa) has had a significant increase of SH trend over Iran. Area average annual anomaly of the tropospheric cross sections indicates that the studied period is divided into two periods: a wet period (1979-1998) and a dry period (1999-2016). |
英文关键词 | ECMWF Iran specific humidity trend troposphere |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000479031900012 |
WOS关键词 | WATER-VAPOR FEEDBACK ; SURFACE HUMIDITY ; ERA-INTERIM ; TEMPERATURE |
WOS类目 | Meteorology & Atmospheric Sciences |
WOS研究方向 | Meteorology & Atmospheric Sciences |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/185691 |
专题 | 气候变化 |
作者单位 | 1.Univ Kurdistan, Fac Nat Resources, Dept Climatol, Sanandaj, Iran; 2.Kharazmi Univ, Fac Geog Sci, Dept Phys Geog, Tehran, Iran |
推荐引用方式 GB/T 7714 | Darand, Mohammad,Pazhooh, Farshad,Saligheh, Mohammad. Trend analysis of tropospheric specific humidity over Iran during 1979-2016[J]. INTERNATIONAL JOURNAL OF CLIMATOLOGY,2019,39(10):4058-4071. |
APA | Darand, Mohammad,Pazhooh, Farshad,&Saligheh, Mohammad.(2019).Trend analysis of tropospheric specific humidity over Iran during 1979-2016.INTERNATIONAL JOURNAL OF CLIMATOLOGY,39(10),4058-4071. |
MLA | Darand, Mohammad,et al."Trend analysis of tropospheric specific humidity over Iran during 1979-2016".INTERNATIONAL JOURNAL OF CLIMATOLOGY 39.10(2019):4058-4071. |
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