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Table 2.

Overall average values of the optical properties of AERONET and OMI products over Dhaka and Bhola (2012–2019). DOI: https://doi.org/10.1525/elementa.2021.000063.t2

DhakaAAE440–870 (n = 593)AERONET-AAOD440 (n = 608)OMI-AAOD500 (n = 639)AERONET-AAOD500 (n = 579)AE440–870 (n = 552)EAE440–870 (n = 506)FMF500 (n = 1,223)RRI440 (n = 608)SSA440 (n = 608)
Premonsoon 1.445 .091 .030 .079 1.200 1.171 .752 1.440 .901 
Monsoon 1.300 .060 .021 .050 1.060 1.045 .690 1.424 .935 
Postmonsoon 1.310 .110 .022 .101 1.241 1.310 .871 1.473 .880 
Winter 1.250 .121 .029 .100 1.201 1.190 .911 1.471 .890 
Average 1.311 ± 0.015 .110 ± .002 .024 ± .001 .084 ± .002 1.195 ± 0.008 1.197 ± 0.007 .858 ± .005 1.459 ± 0.002 .891 ± .001 
Bhola AAE440–870 (n = 546) AERONET-AAOD440 (n = 546) OMI-AAOD500 (n = 855) AERONET-AAOD500 (n = 544) AE440–870 (n = 349) EAE440–870 (n = 584) FMF500 (n = 1,011) RRI440 (n = 546) SSA440 (n = 546) 
Premonsoon 1.360 .062 .029 .050 1.330 1.205 .740 1.461 .932 
Monsoon 0.981 .041 .021 .031 0.823 1.001 .549 1.460 .950 
Postmonsoon 1.139 .070 .022 .062 1.171 1.340 .871 1.453 .898 
Winter 1.200 .091 .030 .081 1.262 1.261 .919 1.472 .901 
Average 1.257 ± 0.015 .075 ± .001 .023 ± .001 .062 ± .002 1.270 ± 0.008 1.242 ± 0.007 .855 ± .006 1.465 ± 0.002 .912 ± .001 
DhakaAAE440–870 (n = 593)AERONET-AAOD440 (n = 608)OMI-AAOD500 (n = 639)AERONET-AAOD500 (n = 579)AE440–870 (n = 552)EAE440–870 (n = 506)FMF500 (n = 1,223)RRI440 (n = 608)SSA440 (n = 608)
Premonsoon 1.445 .091 .030 .079 1.200 1.171 .752 1.440 .901 
Monsoon 1.300 .060 .021 .050 1.060 1.045 .690 1.424 .935 
Postmonsoon 1.310 .110 .022 .101 1.241 1.310 .871 1.473 .880 
Winter 1.250 .121 .029 .100 1.201 1.190 .911 1.471 .890 
Average 1.311 ± 0.015 .110 ± .002 .024 ± .001 .084 ± .002 1.195 ± 0.008 1.197 ± 0.007 .858 ± .005 1.459 ± 0.002 .891 ± .001 
Bhola AAE440–870 (n = 546) AERONET-AAOD440 (n = 546) OMI-AAOD500 (n = 855) AERONET-AAOD500 (n = 544) AE440–870 (n = 349) EAE440–870 (n = 584) FMF500 (n = 1,011) RRI440 (n = 546) SSA440 (n = 546) 
Premonsoon 1.360 .062 .029 .050 1.330 1.205 .740 1.461 .932 
Monsoon 0.981 .041 .021 .031 0.823 1.001 .549 1.460 .950 
Postmonsoon 1.139 .070 .022 .062 1.171 1.340 .871 1.453 .898 
Winter 1.200 .091 .030 .081 1.262 1.261 .919 1.472 .901 
Average 1.257 ± 0.015 .075 ± .001 .023 ± .001 .062 ± .002 1.270 ± 0.008 1.242 ± 0.007 .855 ± .006 1.465 ± 0.002 .912 ± .001 

AERONET = aerosol robotic network; OMI = ozone monitoring instrument; AAOD = aerosol absorption optical depth; AAE = absorption angstrom exponent; AE = angstrom exponent; EAE = extinction angstrom exponent; FMF = fine mode fraction; RRI = real refractive index; SSA = single scattering albedo.

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