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Surface Air Temperature Variability over Subregions of Pakistan During 1970-2014
Karim, Rizwan1,2; Tan, Guirong1,2; Ayugi, Brian3; Babaousmail, Hassen4; Alriah, Mohamed Abdallah Ahmed5; Ngoma, Hamida6
2023
Source PublicationPURE AND APPLIED GEOPHYSICS
ISSN0033-4553
IssuexPages:_
Abstract

This study examines seasonal and annual mean temperature changes from 1970 to 2014. Climatologically, the June-July-August season exhibited the highest (27 degrees C) mean temperatures over the country, followed by March-April-May (MAM; 20.2 degrees C), September-October-November (SON; 19.1 degrees C), and December-January-February (DJF; 8.8 degrees C), while the annual mean was 18.8 degrees C. The southern region exhibited higher mean temperatures than the northern region for the DJF, MAM, JJA, SON, and annual timescales during the study period. The seasonal trend across the country was highest in MAM (0.027 degrees C/year), followed by SON (0.025 degrees C/year), DJF (0.023 degrees C/year), and JJA (0.016 degrees C/year). The interannual trend increased significantly at 0.023 degrees C/year across the country. Across the north, MAM showed the highest increase (nonsignificant) in trends at 0.025 degrees C/year, followed by a significant increase during SON (0.018 degrees C/year), DJF (0.017 degrees C/year), and JJA (0.010 degrees C/year), while annual trends were the lowest (0.017 degrees C/year). Examination of abrupt change over Pakistan showed nonsignificant change during JJA, while MAM, JJA, SON, and annual timescales demonstrated significant positive and negative changes. Decadal anomalies showed long-term positive tendencies in DJF (since 1990-2014) temperature, followed by JJA, SON, annual, and MAM timescales (2000-2014). In conclusion, the observed changes in temperature were significantly robust and promise increasing signal patterns in all time scales.

KeywordMean temperature Pakistan Trends Anomaly Climatology
Subject AreaGeochemistry & Geophysics
DOI10.1007/s00024-023-03359-y
Indexed BySCI
Language英语
WOS IDWOS:001087884100001
Citation statistics
Document Type期刊论文
Identifierhttps://ir.xtbg.ac.cn/handle/353005/13908
Collection其他
Affiliation1.Univ Chinese Acad Sci, Sci Res Ctr, Xishuangbanna Trop Bot Garden, Menglun, Yunnan, Peoples R China
2.Nanjing Univ Informat Sci & Technol, Minist Educ KLME, Key Lab Meteorol Disaster, Joint Int Res Lab Climate & Environm Change ILCEC, Nanjing 210044, Peoples R China
3.Nanjing Univ Informat Sci & Technol, Collaborat Innovat Ctr Forecast & Evaluat Meteorol, Nanjing 210044, Peoples R China
4.Seoul Natl Univ Sci & Technol, Dept Civil Engn, Seoul 01811, South Korea
5.Nanjing Univ Informat Sci & Technol, Binjiang Coll, Wuxi, Jiangsu, Peoples R China
6.Nanjing Univ Informat Sci & Technol, Sch Geog Sci, Nanjing 210044, Peoples R China
7.Univ Connecticut, Dept Geosci, Storrs, CT 06269 USA
Recommended Citation
GB/T 7714
Karim, Rizwan,Tan, Guirong,Ayugi, Brian,et al. Surface Air Temperature Variability over Subregions of Pakistan During 1970-2014[J]. PURE AND APPLIED GEOPHYSICS,2023(x):_.
APA Karim, Rizwan,Tan, Guirong,Ayugi, Brian,Babaousmail, Hassen,Alriah, Mohamed Abdallah Ahmed,&Ngoma, Hamida.(2023).Surface Air Temperature Variability over Subregions of Pakistan During 1970-2014.PURE AND APPLIED GEOPHYSICS(x),_.
MLA Karim, Rizwan,et al."Surface Air Temperature Variability over Subregions of Pakistan During 1970-2014".PURE AND APPLIED GEOPHYSICS .x(2023):_.
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