Site of study

Product

Years of study

2005

2006

2007

2008

2009

2010

2011

2012

2013

Nairobi

AOD trend

$\omega$

−−

0.0055

0.0086

−0.0094

0.0031

−−

−−

−−

−−

${\sigma }_{\omega }$

−−

0.0018

0.0022

0.0052

0.0012

−−

−−

−−

−−

$\left|\omega /{\sigma }_{\omega }\right|$

−−

3.06

3.91

1.81

2.58

−−

−−

−−

−−

Mbita

AOD trend

$\omega$

−−

−−

−0.0091

0.0131

−−

0.0038

−0.0024

−0.0124

−0.0029

${\sigma }_{\omega }$

−−

−−

0.0032

0.0035

−−

0.0012

0.0010

0.0048

0.0011

$\left|\omega /{\sigma }_{\omega }\right|$

−−

−−

2.84

3.74

−−

3.17

2.40

2.58

2.64

Malindi

AOD trend

$\omega$

−−

−−

−−

0.0048

−0.0079

0.0072

−0.0086

−0.0198

−0.0036

${\sigma }_{\omega }$

−−

−−

−−

0.0011

0.0012

0.0014

0.0023

0.0026

0.0013

$\left|\omega /{\sigma }_{\omega }\right|$

−−

−−

−−

3.91

6.58

5.14

3.74

7.62

2.77