Journal of Solar Energy / 2015 / Article / Tab 3

Research Article

Analysis of Global Solar Irradiance over Climatic Zones in Nigeria for Solar Energy Applications

Table 3

Monthly mean and coefficient of variation (COV) of global solar irradiance for the climatic zones.

Tropical rainforest
MonthsJANFEBMARAPRMAYJUNJULAUGSEPOCTNOVDEC
Means19.8820.419.9818.9717.6815.8914.1613.8314.7316.4918.5219.37
COV0.120.110.120.120.130.150.160.170.160.140.120.12

Guinea savannah
MonthsJANFEBMARAPRMAYJUNJULAUGSEPOCTNOVDEC
Means20.8121.621.7320.6719.3117.6516.0515.1216.4418.2620.3520.55
COV0.110.10.10.110.120.130.140.150.140.120.110.11

Sahel savannah
MonthsJANFEBMARAPRMAYJUNJULAUGSEPOCTNOVDEC
Means20.3222.924.524.6423.7122.8220.5419.220.6621.2220.5619.29
COV0.090.080.080.080.080.080.090.10.10.090.090.1

Sudan savannah
MonthsJANFEBMARAPRMAYJUNJULAUGSEPOCTNOVDEC
Means20.3122.623.7323.5522.5521.5619.4318.1619.8920.9920.9619.83
COV0.10.080.080.080.080.080.090.10.090.090.090.09

Mangrove swamp forest
MonthsJANFEBMARAPRMAYJUNJULAUGSEPOCTNOVDEC
Means19.6119.918.5817.5916.2614.1412.5412.8413.2314.6416.8818.7
COV0.130.130.140.150.160.20.210.210.190.180.160.14