The Ecological Impacts of Light Pollution at Night-time a Mechanistic Appraisal
The Ecological Impacts of Light Pollution at Night-time a Mechanistic Appraisal
Abdullahi MG, Roslan U, Kamarudin M. K. A.
Artificial light at night and its negative
consequences are of great interest in the fields of Ecology, Human
Geography Astronomy, and Human Health. Most of the studies to date
concentrated on the influences of light pollution has on our ability to
view the night sky, on biodiversity, and ecosystems. Though, in recent
years, with the use of new technologies sensors, which provide accurate
information for determining of night lights at the area, most
consideration were given for estimating artificial light at night within
the urban areas. In this study, urban night lights within the cities of
Nigeria was evaluated by monitoring data from the ground measurements
using Sky Quality Meter (SQM-LU-DL) devices. Besides, the SQM was used
at the zenith (upward direction) for maximum evaluating of artificial
light at the sites. Differences in night sky brightness were found
between the observation sites with the brightest values measured in the
upward direction (20.14 to 22.00 magsqm arcsec−2) as the SQM
measurements were influenced by surface albedo, this was due to the
reflection of solar radiation during the day by the earth’s surface; and
the other sources that exposed direct lights from buildings and car
lamps, while in some locations the upwards direction represented
skyglow. Cluster analysis result has shown that some places are more
ecological friendly especially for migrating birds and other nocturnal
animals. GIS software was used to group the data according to the data
obtained during the monitoring. The result showed tha, the area with a
dark color in the map indicated the darkest region of the study area and
the bright areas on GIS map image were associated with areas of high
use of artificial light and high albedo. This study provides a clear
view for the assessing the sky condition and can serve as a tool for
locating the suitable place for a zoological garden and even for optical
astronomy in the study area.
http://ijeab.com/upload_document/issue_files/1467813949-5%20IJEAB-MAY-2016-12-The%20Ecological%20Impacts%20of%20Light%20Pollution%20at%20Night-time%20a%20Mechanistic%20Appraisal.pdf
ijeab.com/submit-paper/
Abdullahi MG, Roslan U, Kamarudin M. K. A.
Artificial light at night and its negative
consequences are of great interest in the fields of Ecology, Human
Geography Astronomy, and Human Health. Most of the studies to date
concentrated on the influences of light pollution has on our ability to
view the night sky, on biodiversity, and ecosystems. Though, in recent
years, with the use of new technologies sensors, which provide accurate
information for determining of night lights at the area, most
consideration were given for estimating artificial light at night within
the urban areas. In this study, urban night lights within the cities of
Nigeria was evaluated by monitoring data from the ground measurements
using Sky Quality Meter (SQM-LU-DL) devices. Besides, the SQM was used
at the zenith (upward direction) for maximum evaluating of artificial
light at the sites. Differences in night sky brightness were found
between the observation sites with the brightest values measured in the
upward direction (20.14 to 22.00 magsqm arcsec−2) as the SQM
measurements were influenced by surface albedo, this was due to the
reflection of solar radiation during the day by the earth’s surface; and
the other sources that exposed direct lights from buildings and car
lamps, while in some locations the upwards direction represented
skyglow. Cluster analysis result has shown that some places are more
ecological friendly especially for migrating birds and other nocturnal
animals. GIS software was used to group the data according to the data
obtained during the monitoring. The result showed tha, the area with a
dark color in the map indicated the darkest region of the study area and
the bright areas on GIS map image were associated with areas of high
use of artificial light and high albedo. This study provides a clear
view for the assessing the sky condition and can serve as a tool for
locating the suitable place for a zoological garden and even for optical
astronomy in the study area.
http://ijeab.com/upload_document/issue_files/1467813949-5%20IJEAB-MAY-2016-12-The%20Ecological%20Impacts%20of%20Light%20Pollution%20at%20Night-time%20a%20Mechanistic%20Appraisal.pdf
ijeab.com/submit-paper/
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