Identifying the Source of the Dust Storm in Rainy Conditions and Determining the Effects of Dust on the Physical Structure of Clouds in the West and Southwest of Iran

Identifying the Source of the Dust Storm in Rainy Conditions and Determining the Effects of Dust on the Physical Structure of Clouds in the West and Southwest of Iran | Research Square window.SnipcartSettings = { analytics: { enabled: false } }; (function() { var accessVector = localStorage.getItem('access_vector') || ''; window.dataLayer = window.dataLayer || []; if (accessVector) { window.dataLayer.push({ user: { profile: { profileInfo: { snid: accessVector } } } }); } })(); (function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src='https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);})(window,document,'script','dataLayer','GTM-K279D39R'); Browse Preprints In Review Journals COVID-19 Preprints AJE Video Bytes Research Tools Research Promotion AJE Professional Editing AJE Rubriq About Preprint Platform In Review Editorial Policies Our Team Advisory Board Help Center Sign In Submit a Preprint Cite Share Download PDF Research Article Identifying the Source of the Dust Storm in Rainy Conditions and Determining the Effects of Dust on the Physical Structure of Clouds in the West and Southwest of Iran dana rostami, Hassan Lashkari, Zainab Mohammadi This is a preprint; it has not been peer reviewed by a journal. https://doi.org/ 10.21203/rs.3.rs-4817449/v1 This work is licensed under a CC BY 4.0 License Status: Posted Version 1 posted You are reading this latest preprint version Abstract Dust storms have direct and indirect effects on the climate and the environment under their influence. During the last two decades, due to climate changes and land use changes in the west and southwest of Iran, dust storms with precipitation have been observed, which certainly greatly impact the cloud structure and subsequent precipitation in this region. This research aims to identify the origin of dust storms and investigate the effects of these storms on the physical structure of clouds in rainy conditions and unstable atmospheres in the study area. This research used thematic maps, the HYSPLIT model, and satellite images to identify the source of these types of storms. Also, SIVIRI sensor images and dust data from the CAMS global reanalysis EAC4 have been used to investigate the effects of dust on the cloud structure. Based on model tracking and satellite images, five regions, including the Nafud desert and Rub al-Khali in Saudi Arabia, desert regions of North East Africa, western regions of Syria, and western Iraq, were identified as the most important source of this phenomenon. Also, the effects of dust on cloud structure showed a strong positive correlation between the amount of dust and the parameters of optical depth and liquid water path, at a significant level of 95% in the sample of heavy rains. There is no significant correlation in the relationship between other parameters of cloud structure in the event of heavy precipitation. Also, the results showed no significant relationship between the amount of dust and cloud parameters in light rain. Identifying the source areas and routes of dust storms, as well as investigating the effects of dust on the structure of clouds, will improve our understanding of the mechanisms and effects of dust storms on the climate and environment of the region. HYSPLIT dust cloud physical structure SIVIRI Full Text Cite Share Download PDF Status: Posted Version 1 posted You are reading this latest preprint version Research Square lets you share your work early, gain feedback from the community, and start making changes to your manuscript prior to peer review in a journal. As a division of Research Square Company, we’re committed to making research communication faster, fairer, and more useful. We do this by developing innovative software and high quality services for the global research community. Our growing team is made up of researchers and industry professionals working together to solve the most critical problems facing scientific publishing. Also discoverable on Platform About Our Team In Review Editorial Policies Advisory Board Help Center Resources Author Services Accessibility API Access RSS feed Manage Cookie Preferences © Research Square 2026 | ISSN 2693-5015 (online) Privacy Policy Terms of Service Do Not Sell My Personal Information {"props":{"pageProps":{"initialData":{"identity":"rs-4817449","acceptedTermsAndConditions":true,"allowDirectSubmit":true,"archivedVersions":[],"articleType":"Research Article","associatedPublications":[],"authors":[{"id":339059516,"identity":"f640c2da-2db3-4a26-b670-710753b82370","order_by":0,"name":"dana rostami","email":"data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAZAAAAAyAQMAAABI0h/eAAAABlBMVEX///8AAABVwtN+AAAACXBIWXMAAA7EAAAOxAGVKw4bAAAA+UlEQVRIiWNgGAWjYDCCA3AWYwMQ2YAYjQdwqUbWIgHVkgbWS6wWsOLDaFZjAXzHzx78XFFRV8c/7XAD488d5+3Wth8G2lJjE41Li+SZvGTJM2cOS0jcTmwA8m4nbzuTCNRyLC23AYcWgwM5BpKNbQckGEBaDNtuJ5sdAGoBuhC3lvNvjH82ttVJyIO0JLadSzY7/5CAlhs5ZkBbmCUMQFoOth2wM7tBwBbJG2/MLBvOHJbcCNRysLEtOcHsBtCWBDx+4TufY3yzoaKOX+52+sOHP9vs7M3Opz988KHGBqcWFHAAiBPBKhOIUQ4D9qQoHgWjYBSMgpEBAN+Ba0WC3EOGAAAAAElFTkSuQmCC","orcid":"https://orcid.org/0009-0005-3778-6304","institution":"Shahid Beheshti University","correspondingAuthor":true,"prefix":"","firstName":"dana","middleName":"","lastName":"rostami","suffix":""},{"id":339059517,"identity":"6cf84384-b0ba-47ac-9a3b-42711cadfc9d","order_by":1,"name":"Hassan Lashkari","email":"","orcid":"","institution":"Shahid Beheshti University","correspondingAuthor":false,"prefix":"","firstName":"Hassan","middleName":"","lastName":"Lashkari","suffix":""},{"id":339059518,"identity":"c030769a-cf12-46bc-8e38-4c08a2b97532","order_by":2,"name":"Zainab Mohammadi","email":"","orcid":"","institution":"Shahid Beheshti University","correspondingAuthor":false,"prefix":"","firstName":"Zainab","middleName":"","lastName":"Mohammadi","suffix":""}],"badges":[],"createdAt":"2024-07-28 15:47:12","currentVersionCode":1,"declarations":"","doi":"10.21203/rs.3.rs-4817449/v1","doiUrl":"https://doi.org/10.21203/rs.3.rs-4817449/v1","draftVersion":[],"editorialEvents":[],"editorialNote":"","failedWorkflow":false,"files":[{"id":64180708,"identity":"559f2fdb-a8cd-4bc3-a73f-9bd089b5fdb7","added_by":"auto","created_at":"2024-09-09 14:43:18","extension":"pdf","order_by":1,"title":"","display":"","copyAsset":false,"role":"manuscript-pdf","size":1401501,"visible":true,"origin":"","legend":"","description":"","filename":"manuscript.pdf","url":"https://assets-eu.researchsquare.com/files/rs-4817449/v1_covered_af4ec4c8-102a-440c-a9f9-27bbbc04f0fa.pdf"}],"financialInterests":"","formattedTitle":"Identifying the Source of the Dust Storm in Rainy Conditions and Determining the Effects of Dust on the Physical Structure of Clouds in the West and Southwest of Iran","fulltext":[],"fulltextSource":"","fullText":"","funders":[],"hasAdminPriorityOnWorkflow":false,"hasManuscriptDocX":false,"hasOptedInToPreprint":true,"hasPassedJournalQc":"","hasAnyPriority":false,"hideJournal":true,"highlight":"","institution":"","isAcceptedByJournal":false,"isAuthorSuppliedPdf":true,"isDeskRejected":"","isHiddenFromSearch":false,"isInQc":false,"isInWorkflow":false,"isPdf":true,"isPdfUpToDate":true,"isWithdrawnOrRetracted":false,"journal":{"display":true,"email":"[email protected]","identity":"researchsquare","isNatureJournal":false,"hasQc":true,"allowDirectSubmit":true,"externalIdentity":"","sideBox":"","snPcode":"","submissionUrl":"/submission","title":"Research Square","twitterHandle":"researchsquare","acdcEnabled":true,"dfaEnabled":false,"editorialSystem":"","reportingPortfolio":"","inReviewEnabled":false,"inReviewRevisionsEnabled":true},"keywords":"HYSPLIT, dust, cloud physical structure, SIVIRI","lastPublishedDoi":"10.21203/rs.3.rs-4817449/v1","lastPublishedDoiUrl":"https://doi.org/10.21203/rs.3.rs-4817449/v1","license":{"name":"CC BY 4.0","url":"https://creativecommons.org/licenses/by/4.0/"},"manuscriptAbstract":"\u003cp\u003eDust storms have direct and indirect effects on the climate and the environment under their influence. 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