Time-based Geospatial Analysis of Night-Time Light Data and Citizen Movement Restriction During Covid-19 Period
DOI:
https://doi.org/10.33379/gtech.v7i2.2397Keywords:
Citizen Restriction, Geospatial Analysis, Mobility Report, Night Time Light DataAbstract
Restrictions on community activities or in some areas also called lockdowns have been carried out by many countries in order to reduce the spread of Covid-19. Various methods are used to monitor the implementation of these restrictions, this study uses a new approach by using satellite imagery at night commonly called Night-Time Light (NTL) Data. This research using a sample of 381 coordinate points was taken in public places in Jakarta. The data was collected using the VIIRS Stray Light Corrected Nighttime Day/Night Band Composites Version 1 dataset from Q1 2019 to Q2 2022. The results of these satellite photos were then converted into numerical form and correlated with the timeline for the restriction of community activities in the Jakarta area. The result is there is a slightly decreasing in light intensity when entering a period of Covid-19 at the beginning of 2020 until 2022 with a percentage of around 1% - 16% in various sectors. This decreasing light intensity has a slight correlation with mobility data for several sectors. The mobility data show a huge difference at the beginning of Covid-19, which shows a decrease in the activity of up to 60%.
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Copyright (c) 2023 Samuel Ady Sanjaya, Melissa Indah Fianty
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