TREND ANALYSIS OF AOD AND AE IN ILORIN AND CAPO VERDO, WEST AFRICA

Simple item page
dc.contributor.authorSharafa, S. B.
dc.contributor.authorAliyu, R.
dc.contributor.authorIbrahim, B. B.
dc.date.accessioned2026-04-27T11:22:04Z
dc.date.available2026-04-27T11:22:04Z
dc.date.issued2021
dc.descriptionPreliminary findings
dc.description.abstractAnalysis of atmospheric aerosols enhances confidence in the evaluation of its effects on both local and regional climate change. To accomplish this over West Africa, it is vital to be familiar with aerosols' temporal characteristics over the area. West Africa has witnessed more frequent and intensified dust storms in the past. Trend analysis of aerosols in this region requires observational data regarding its physical and optical properties. For this, the Statistical Package for the Social Sciences (SPSS) software has been used. Monthly averaged measurements of aerosol optical depth at 550 nm (AOD, τ) and Angstrom exponent at 470 - 660 nm (AE, α) data from Moderate Resolution Imaging Spectroradiometer (MODIS) over Capo Verdo and Ilorin Aerosol Robotic Network (AERONET) stations were analyzed in this study. The satellite dataset collected for a period from 2000 to 2015 were examined in relation to their trends. It was discovered that the Ilorin and Capo Verdo stations were dominated by fine mode and coarse mode particles, respectively. Also, an increasing trend in aerosol loading was noticed in Ilorin while a reduction was noticed in Capo Verdo. It was also deduced that fine mode aerosols are on the increase in the two stations. The analysis for the seasonal variation shows that during the dry season, both aerosol loading and fine mode aerosols are on the increase in both stations. In the rainy season, Ilorin station recorded increasing aerosol loading and an increase in dust pollution. On the other hand in Capo Verdo, a reduction in aerosol loading was noticed while fine mode aerosols are on the increase. Seasonal contribution of aerosols show that dry seasons has the highest pollution recorded in Ilorin while Capo Verdo record the least during the same dry season. The highest contribution of fine mode aerosols in both stations was noticed in the rainy season.
dc.description.sponsorshipPrivate
dc.identifier.isbn978-605-70216-5-6
dc.identifier.urihttps://uilspace.unilorin.edu.ng/handle/123456789/17623
dc.language.isoen
dc.publisherIKSAD GLOBAL Publishing House
dc.subjectAerosol optical depth
dc.subjectAngstrom Exponent
dc.subjectMODIS
dc.subjectAERONET
dc.subjectWest Africa
dc.titleTREND ANALYSIS OF AOD AND AE IN ILORIN AND CAPO VERDO, WEST AFRICA
dc.typeOther

Files

Original bundle
Now showing 1 - 1 of 1
No Thumbnail Available
Name:
Comrat Conference Proceeding 2021.pdf
Size:
1.7 MB
Format:
Adobe Portable Document Format
Download
License bundle
Now showing 1 - 1 of 1
No Thumbnail Available
Name:
license.txt
Size:
1.71 KB
Format:
Item-specific license agreed upon to submission
Description:
Download

Collections