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This is to certify that your paper entitled «Utilizing NASA Giovanni and Google Earth Engine for Dust Analysis in Northeast and East Iran: A ۴۰-Year Study Using MODIS, MERRA-۲, and Sentinel-۵ Data to Assess Relationships with Wind and Vegetation» was indexed with 19 pages, in the CIVILICA citation database, code COI:JR_JONASS-4-1_004, after evaluation and approval of the referees of the "Journal of Nature and Spatial Sciences Vol 4, Issue 1 , Year 2025.

While offering our congratulations on the indexation of your paper, please be informed that this certificate is prepared based on the information submitted by the secretariat of the above journal and the information contained in the CIVILICA database, and the accuracy of its content can be inquired at any time through link provided at the bottom of the page or scanning the code image.