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Night Sky Brightness Assessment in Nigeria Using Environmetric and GIS Technique

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@article{IJASEIT970,
   author = {Musa Garba Abdullahi and Mohd Khairul Amri Kamarudin and Roslan Umar and Azizah Endut and Saiful Iskandar Khalit and Hafizan Juahir},
   title = {Night Sky Brightness Assessment in Nigeria Using Environmetric and GIS Technique},
   journal = {International Journal on Advanced Science, Engineering and Information Technology},
   volume = {7},
   number = {1},
   year = {2017},
   pages = {28--34},
   keywords = {sky brightness; sky quality meter; light pollution; cluster analysis; environmetric technique; GIS},
   abstract = {High anthropogenic activities are rapidly increasing phenomenon and it is assumed to have global implications. In Nigeria, high anthropogenic activities rapidly increase above the standard of the threshold values especially the lighting sources. This increase due to the vastly growing of industries, residential and commercial uses and other sources such as street lighting in urban and semi-urban areas, which can make the night sky brightness in the area above the threshold set for polluted status. The study measures the night sky brightness at the most densely populated urban centers of Nigeria; to estimate and quantify the level of the night sky brightness from the sites nearby the cities of the planned research study. The research monitored the zenith sky brightness from November 2015 to March 2016 using Sky Quality Meter (SQM). However, typical values ranging from 20.14 to 22.00Mag.sqm /arc sec.2 were measured at different sites of the study area. This data recorded in the field was analyzed using Agglomerative Hierarchical Method via Ward’s Methods to cluster our data according to the pollution status of the areas. Result showed three clusters in which class 1 has low pollution; class 2 is moderate while class 3 has the high pollution status. The sites classified in class 3 are more polluted due to the high use of artificial light. However, geographical information system (GIS) software was employed to confirm the results obtained from environ-metric technique and concluded that this result is confirmed to be the same. Hence, it illustrated that sites in cluster 1 have an excellent dark location that can be used to build optical observatory stations and other astronomical observations due to their dark sky.},
   issn = {2088-5334},
   publisher = {INSIGHT - Indonesian Society for Knowledge and Human Development},
   url = {http://ijaseit.insightsociety.org/index.php?option=com_content&view=article&id=9&Itemid=1&article_id=970},
   doi = {10.18517/ijaseit.7.1.970}
}

EndNote

%A Abdullahi, Musa Garba
%A Kamarudin, Mohd Khairul Amri
%A Umar, Roslan
%A Endut, Azizah
%A Khalit, Saiful Iskandar
%A Juahir, Hafizan
%D 2017
%T Night Sky Brightness Assessment in Nigeria Using Environmetric and GIS Technique
%B 2017
%9 sky brightness; sky quality meter; light pollution; cluster analysis; environmetric technique; GIS
%! Night Sky Brightness Assessment in Nigeria Using Environmetric and GIS Technique
%K sky brightness; sky quality meter; light pollution; cluster analysis; environmetric technique; GIS
%X High anthropogenic activities are rapidly increasing phenomenon and it is assumed to have global implications. In Nigeria, high anthropogenic activities rapidly increase above the standard of the threshold values especially the lighting sources. This increase due to the vastly growing of industries, residential and commercial uses and other sources such as street lighting in urban and semi-urban areas, which can make the night sky brightness in the area above the threshold set for polluted status. The study measures the night sky brightness at the most densely populated urban centers of Nigeria; to estimate and quantify the level of the night sky brightness from the sites nearby the cities of the planned research study. The research monitored the zenith sky brightness from November 2015 to March 2016 using Sky Quality Meter (SQM). However, typical values ranging from 20.14 to 22.00Mag.sqm /arc sec.2 were measured at different sites of the study area. This data recorded in the field was analyzed using Agglomerative Hierarchical Method via Ward’s Methods to cluster our data according to the pollution status of the areas. Result showed three clusters in which class 1 has low pollution; class 2 is moderate while class 3 has the high pollution status. The sites classified in class 3 are more polluted due to the high use of artificial light. However, geographical information system (GIS) software was employed to confirm the results obtained from environ-metric technique and concluded that this result is confirmed to be the same. Hence, it illustrated that sites in cluster 1 have an excellent dark location that can be used to build optical observatory stations and other astronomical observations due to their dark sky.
%U http://ijaseit.insightsociety.org/index.php?option=com_content&view=article&id=9&Itemid=1&article_id=970
%R doi:10.18517/ijaseit.7.1.970
%J International Journal on Advanced Science, Engineering and Information Technology
%V 7
%N 1
%@ 2088-5334

IEEE

Musa Garba Abdullahi,Mohd Khairul Amri Kamarudin,Roslan Umar,Azizah Endut,Saiful Iskandar Khalit and Hafizan Juahir,"Night Sky Brightness Assessment in Nigeria Using Environmetric and GIS Technique," International Journal on Advanced Science, Engineering and Information Technology, vol. 7, no. 1, pp. 28-34, 2017. [Online]. Available: http://dx.doi.org/10.18517/ijaseit.7.1.970.

RefMan/ProCite (RIS)

TY  - JOUR
AU  - Abdullahi, Musa Garba
AU  - Kamarudin, Mohd Khairul Amri
AU  - Umar, Roslan
AU  - Endut, Azizah
AU  - Khalit, Saiful Iskandar
AU  - Juahir, Hafizan
PY  - 2017
TI  - Night Sky Brightness Assessment in Nigeria Using Environmetric and GIS Technique
JF  - International Journal on Advanced Science, Engineering and Information Technology; Vol. 7 (2017) No. 1
Y2  - 2017
SP  - 28
EP  - 34
SN  - 2088-5334
PB  - INSIGHT - Indonesian Society for Knowledge and Human Development
KW  - sky brightness; sky quality meter; light pollution; cluster analysis; environmetric technique; GIS
N2  - High anthropogenic activities are rapidly increasing phenomenon and it is assumed to have global implications. In Nigeria, high anthropogenic activities rapidly increase above the standard of the threshold values especially the lighting sources. This increase due to the vastly growing of industries, residential and commercial uses and other sources such as street lighting in urban and semi-urban areas, which can make the night sky brightness in the area above the threshold set for polluted status. The study measures the night sky brightness at the most densely populated urban centers of Nigeria; to estimate and quantify the level of the night sky brightness from the sites nearby the cities of the planned research study. The research monitored the zenith sky brightness from November 2015 to March 2016 using Sky Quality Meter (SQM). However, typical values ranging from 20.14 to 22.00Mag.sqm /arc sec.2 were measured at different sites of the study area. This data recorded in the field was analyzed using Agglomerative Hierarchical Method via Ward’s Methods to cluster our data according to the pollution status of the areas. Result showed three clusters in which class 1 has low pollution; class 2 is moderate while class 3 has the high pollution status. The sites classified in class 3 are more polluted due to the high use of artificial light. However, geographical information system (GIS) software was employed to confirm the results obtained from environ-metric technique and concluded that this result is confirmed to be the same. Hence, it illustrated that sites in cluster 1 have an excellent dark location that can be used to build optical observatory stations and other astronomical observations due to their dark sky.
UR  - http://ijaseit.insightsociety.org/index.php?option=com_content&view=article&id=9&Itemid=1&article_id=970
DO  - 10.18517/ijaseit.7.1.970

RefWorks

RT Journal Article
ID 970
A1 Abdullahi, Musa Garba
A1 Kamarudin, Mohd Khairul Amri
A1 Umar, Roslan
A1 Endut, Azizah
A1 Khalit, Saiful Iskandar
A1 Juahir, Hafizan
T1 Night Sky Brightness Assessment in Nigeria Using Environmetric and GIS Technique
JF International Journal on Advanced Science, Engineering and Information Technology
VO 7
IS 1
YR 2017
SP 28
OP 34
SN 2088-5334
PB INSIGHT - Indonesian Society for Knowledge and Human Development
K1 sky brightness; sky quality meter; light pollution; cluster analysis; environmetric technique; GIS
AB High anthropogenic activities are rapidly increasing phenomenon and it is assumed to have global implications. In Nigeria, high anthropogenic activities rapidly increase above the standard of the threshold values especially the lighting sources. This increase due to the vastly growing of industries, residential and commercial uses and other sources such as street lighting in urban and semi-urban areas, which can make the night sky brightness in the area above the threshold set for polluted status. The study measures the night sky brightness at the most densely populated urban centers of Nigeria; to estimate and quantify the level of the night sky brightness from the sites nearby the cities of the planned research study. The research monitored the zenith sky brightness from November 2015 to March 2016 using Sky Quality Meter (SQM). However, typical values ranging from 20.14 to 22.00Mag.sqm /arc sec.2 were measured at different sites of the study area. This data recorded in the field was analyzed using Agglomerative Hierarchical Method via Ward’s Methods to cluster our data according to the pollution status of the areas. Result showed three clusters in which class 1 has low pollution; class 2 is moderate while class 3 has the high pollution status. The sites classified in class 3 are more polluted due to the high use of artificial light. However, geographical information system (GIS) software was employed to confirm the results obtained from environ-metric technique and concluded that this result is confirmed to be the same. Hence, it illustrated that sites in cluster 1 have an excellent dark location that can be used to build optical observatory stations and other astronomical observations due to their dark sky.
LK http://ijaseit.insightsociety.org/index.php?option=com_content&view=article&id=9&Itemid=1&article_id=970
DO  - 10.18517/ijaseit.7.1.970