干旱区生态环境知识资源中心(Arid): Seasonal simulations of summer aerosol optical depth over the Arabian Peninsula using WRF-Chem: Validation, climatology, and variability

Arid

DOI	10.1002/joc.7396
	Seasonal simulations of summer aerosol optical depth over the Arabian Peninsula using WRF-Chem: Validation, climatology, and variability
	Karumuri, Rama Krishna; Kunchala, Ravi Kumar; Attada, Raju; Dasari, Hari Prasad; Hoteit, Ibrahim
通讯作者	Hoteit, I (corresponding author), King Abdullah Univ Sci & Technol KAUST, Phys Sci & Engn Div, Thuwal 239556900, Saudi Arabia.
来源期刊	INTERNATIONAL JOURNAL OF CLIMATOLOGY
ISSN	0899-8418
EISSN	1097-0088
出版年	2021-10
英文摘要	This study investigates the climatology and variability of summer aerosol optical depth (AOD) over the Arabian Peninsula (AP) using a long-term high-resolution Weather Research and Forecasting model coupled with the chemistry module (WRF-Chem) simulation, available ground-based and satellite observations, and reanalysis products from 2008 to 2018. The simulated spatial distribution of the summer AOD agrees well with the satellite observations and reanalysis over the AP, with spatial correlation coefficients of 0.81/0.83/0.89 with MODIS-A/MODIS-T/MERRA-2, respectively. Higher values of summertime AOD are broadly found over the eastern AP regions and the southern Red Sea and minima over the northern Red Sea and northwest AP, consistent with observational datasets. The WRF-Chem simulation suggests that the two regions of high AOD are associated with dust advected from the Tigris-Euphrates by the northwesterly summer Shamal wind in the eastern AP and from the African Sahara via Sudan by westerly winds through the Tokar Gap for the southern AP. The high AOD over the south-central east AP is due to locally generated dust by the action of northerly winds, modulated by variations in relative humidity, vertical motion, soil moisture, and soil temperature over the desert regions. The vertical extent of this dust is primarily driven by upward motion triggered by thermal convection over the local source region. In terms of interannual variability, summer AOD exhibits significant year-to-year variations over the AP region. In particular, enhanced (reduced) AOD over the southern AP (Persian Gulf) is observed during La Nina conditions, favoured by stronger (weaker) Tokar westerly (northwesterly summer Shamal) winds.
英文关键词	aerosol optical depth (AOD) Arabian Peninsula MODIS WRF-Chem
类型	Article ; Early Access
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000703895300001
WOS关键词	DUST EMISSION ; AIR-QUALITY ; GLOBAL DISTRIBUTION ; PARTICULATE MATTER ; DRY DEPOSITION ; MINERAL DUST ; AFRICAN DUST ; MODEL ; IMPACT ; OZONE
WOS类目	Meteorology & Atmospheric Sciences
WOS研究方向	Meteorology & Atmospheric Sciences
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/363627
作者单位	[Karumuri, Rama Krishna; Dasari, Hari Prasad; Hoteit, Ibrahim] King Abdullah Univ Sci & Technol, Phys Sci & Engn Div, Thuwal, Saudi Arabia; [Kunchala, Ravi Kumar] Indian Inst Technol Delhi, Ctr Atmospher Sci, New Delhi, India; [Attada, Raju] Indian Inst Sci Educ & Res Mohali, Dept Earth & Environm Sci, Mohali, India
推荐引用方式 GB/T 7714	Karumuri, Rama Krishna,Kunchala, Ravi Kumar,Attada, Raju,et al. Seasonal simulations of summer aerosol optical depth over the Arabian Peninsula using WRF-Chem: Validation, climatology, and variability[J],2021.
APA	Karumuri, Rama Krishna,Kunchala, Ravi Kumar,Attada, Raju,Dasari, Hari Prasad,&Hoteit, Ibrahim.(2021).Seasonal simulations of summer aerosol optical depth over the Arabian Peninsula using WRF-Chem: Validation, climatology, and variability.INTERNATIONAL JOURNAL OF CLIMATOLOGY.
MLA	Karumuri, Rama Krishna,et al."Seasonal simulations of summer aerosol optical depth over the Arabian Peninsula using WRF-Chem: Validation, climatology, and variability".INTERNATIONAL JOURNAL OF CLIMATOLOGY (2021).