Arid
DOI10.1016/j.atmosenv.2018.06.011
Aerosol Optical Depth variability over the Arabian Peninsula as inferred from satellite measurements
Kumar, K. Ravi1,2; Attada, Raju1; Dasari, Hari Prasad1; Vellore, Ramesh K.3; Langodan, Sabique1; Abualnaja, Yasser O.1; Hoteit, Ibrahim1
Corresponding AuthorHoteit, Ibrahim
JournalATMOSPHERIC ENVIRONMENT
ISSN1352-2310
EISSN1873-2844
Year Published2018
Volume187Pages:346-357
Abstract in English

Aerosol abundance from widespread deserts over the Arabian Peninsula (AP) plays an important role in the regional climate and air quality. This study investigates the spatio-temporal variability of Aerosol Optical Depth (AOD) ranging from seasonal to inter-annual time scales during the period 2003-2016 using satellite retrievals from MISR and MODIS, together with ground-based observations from the Aerosol Robotic Network (AERONET) available during the period 2003-2012 over the AP. The MODIS AOD (MISR AOD) observations exhibit 0.81 and 0.85 (0.71 and 0.76) correlations with ground-based observations during the wet and dry seasons, respectively. The correlations were also found to be significant with respect to the surface monitoring station at Solar village in Saudi Arabia. Our observational analysis reveals higher (lower) concentrations of AOD during dry (wet) seasons over the AP. The observed AODs indicate similar spatial distributions over annual and seasonal time scales, with high AODs over the Southern Red sea (SR), and the Northeast AP, and lower AODs over the central and southern end of the AP. It is also observed that the AOD exhibits year-to-year variations over different subregions of the AP. Analyses of the inter-annual variability over the AP reveals a significant relationship between the AOD and El Nino-Southern Oscillation (ENSO) during the summertime. Furthermore, positive AOD anomalies over the AP can be closely linked with the intensification of the westerly jet at the Tokar Gap during La Nina phases. Enhanced monsoon associated heat low over the AP during La Nina phases further favors greater uplift and saltation of dust from desert regions.


Keyword in EnglishAerosol optical depth Arabian peninsula ENSO Tokar jet
SubtypeArticle
Language英语
CountrySaudi Arabia ; India
Indexed BySCI-E
WOS IDWOS:000439672800030
WOS KeywordIMAGING SPECTRORADIOMETER MISR ; SAUDI-ARABIA ; TROPOSPHERIC AEROSOL ; GOCART MODEL ; DUST ; MODIS ; AERONET ; PRODUCTS ; CLIMATE ; IDENTIFICATION
WOS SubjectEnvironmental Sciences ; Meteorology & Atmospheric Sciences
WOS Research AreaEnvironmental Sciences & Ecology ; Meteorology & Atmospheric Sciences
Document Type期刊论文
Identifierhttp://119.78.100.177/qdio/handle/2XILL650/207934
Affiliation1.King Abdullah Univ Sci & Technol, Phys Sci & Engn Div, Thuwal 239556900, Saudi Arabia;
2.Indian Inst Technol IITD, Ctr Atmospher Sci, New Delhi, India;
3.Indian Inst Trop Meteorol, Ctr Climate Change Res, Pune, Maharashtra, India
Recommended Citation
GB/T 7714
Kumar, K. Ravi,Attada, Raju,Dasari, Hari Prasad,et al. Aerosol Optical Depth variability over the Arabian Peninsula as inferred from satellite measurements[J],2018,187:346-357.
APA Kumar, K. Ravi.,Attada, Raju.,Dasari, Hari Prasad.,Vellore, Ramesh K..,Langodan, Sabique.,...&Hoteit, Ibrahim.(2018).Aerosol Optical Depth variability over the Arabian Peninsula as inferred from satellite measurements.ATMOSPHERIC ENVIRONMENT,187,346-357.
MLA Kumar, K. Ravi,et al."Aerosol Optical Depth variability over the Arabian Peninsula as inferred from satellite measurements".ATMOSPHERIC ENVIRONMENT 187(2018):346-357.
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