Dust Source Areas and Their Plume Extent Derived From Satellite Data Fields
Name
Geophysical Research Letters - 2024 - AlNasser - Dust Source Areas and Their Plume Extent Derived From Satellite Data.pdf
Description
Published version
Size
9.93 MB
Format
Adobe PDF
Checksum (MD5)
ab76eed2742b9c906f963a2abda5d600
Author(s)
AlNasser, Faisal
Chehbouni, Abdelghani
Entekhabi, Dara
Date Issued
August 23, 2024
Journal
Geophysical Research Letters
Publisher
American Geophysical Union
Citation
AlNasser, F., Chehbouni, A., & Entekhabi, D. (2024). Dust source areas and their plume extent derived from satellite data fields. Geophysical Research Letters, 51, e2024GL110753.
Version
Final published version
Abstract
In this study, prominent dust source areas are identified along with their plume extent using high temporal frequency satellite observations. Hourly dust plume observations of the Dust Belt from geostationary‐orbit satellites are analyzed for the 2017‐12–2022‐11 period. To identify dust source areas and their extents, we back‐track plumes to their source, assessing source areas in terms of emission frequency, contribution, and plume extent patterns. This method advances over traditional source allocation techniques that rely on polar‐orbiting satellites based on a few daily passes and meteorological wind fields for backtracking. Our findings indicate that Boreal summer is the most intense season for most sources, except in the Southern Sahara, which experiences winterly winds. Our analysis also reveals significant contributions from regions within the Sahara that experience expansive but infrequent dust storms, highlighting the importance of considering both frequency and magnitude in understanding dust emissions.
MIT Department
Massachusetts Institute of Technology. Department of Civil and Environmental Engineering
Terms of Use
Creative Commons Attribution-NonCommercial-NoDerivatives
Persistent DSpace Link
DOI of Published Version
10.1029/2024gl110753
