Spatial Distribution of Nighttime Lights and Its Role in Interpreting Urban Transformations in Iraq during 1992–2020 Using Google Colab AI
DOI:
https://doi.org/10.31185/wjfh.Vol22.Iss3/Pt1.2029Keywords:
Nighttime lights; urban expansion; remote sensing; Google Colab; spatial prediction; Iraq.Abstract
Urban expansion is a geographical phenomenon that reflects the economic, social, and environmental transformations of cities. Satellite-derived nighttime light data provide effective indirect indicators of human activity intensity, population distribution, and urban growth. This study aims to analyze the spatial distribution of nighttime lights in Iraq and explain their role in revealing urban transformations during 1992–2020, while employing Google Colab for data processing and prediction. The research adopts an analytical-applied approach. Historical datasets were processed using Python statistical libraries, particularly Scikit-learn, to calculate prediction-error indicators, including mean squared error (MSE) and root mean squared error (RMSE), and to assess model accuracy. The findings show a clear decline in unlit areas and an expansion of rural and urban activity patterns across Iraq. They also indicate that cloud computing accelerates processing, improves scientific reproducibility, and supports spatial prediction until 2030, provided that data quality is ensured and the model is periodically recalibrated.
Downloads
References
1. Cauwels, P., Pestalozzi, N., & Sornette, D. (2014). Dynamics and spatial distribution of global nighttime lights. EPJ Data Science, 3, Article 2. https://doi.org/10.1140/epjds19
2. Hyndman, R. J., & Athanasopoulos, G. (2021). Forecasting: Principles and practice (3rd ed.). OTexts. https://otexts.com/fpp3/
3. Li, S., Li, X., & Zhang, M. (2022). Spatial-temporal pattern evolution of Xi’an Metropolitan Area using DMSP/OLS and NPP/VIIRS nighttime light data. Sustainability, 14(15), Article 9747. https://doi.org/10.3390/su14159747
4. Li, X., Li, D., & Wu, H. (2019). Night-light remote sensing: Data, processing and applications. In A. Rajabifard (Ed.), Sustainable development goals connectivity dilemma: Land and geospatial information for urban and rural resilience (pp. 267–280). CRC Press. https://doi.org/10.1201/9780429290626-17
5. Li, X., Zhou, Y., Zhao, M., & Zhao, X. (2020). A harmonized global nighttime light dataset 1992–2018. Scientific Data, 7, Article 168. https://doi.org/10.1038/s41597-020-0510-y
6. Montgomery, D. C., Jennings, C. L., & Kulahci, M. (2015). Introduction to time series analysis and forecasting (2nd ed.). John Wiley & Sons.
7. National Remote Sensing Centre. (2022). Decadal change of night time light (NTL) over India from space (2012–2021). Indian Space Research Organisation, Department of Space, Government of India. https://bhuvan-app1.nrsc.gov.in/2dresources/NTL_Atlas.pdf
8. Pedregosa, F., Varoquaux, G., Gramfort, A., Michel, V., Thirion, B., Grisel, O., Blondel, M., Prettenhofer, P., Weiss, R., Dubourg, V., Vanderplas, J., Passos, A., Cournapeau, D., Brucher, M., Perrot, M., & Duchesnay, É. (2011). Scikit-learn: Machine learning in Python. Journal of Machine Learning Research, 12, 2825–2830. https://www.jmlr.org/papers/volume12/pedregosa11a/pedregosa11a.pdf
9. Wang, Q., Xin, Z., & Niu, F. (2022). Analysis of the spatio-temporal patterns of shrinking cities in China: Evidence from nighttime light. Land, 11(6), Article 871. https://doi.org/10.3390/land11060871
10. Xu, T., Ma, T., Zhou, C., & Zhou, Y. (2014). Characterizing spatio-temporal dynamics of urbanization in China using time series of DMSP/OLS night light data. Remote Sensing, 6(8), 7708–7731. https://doi.org/10.3390/rs6087708
11. Zheng, Q., Seto, K. C., Zhou, Y., You, S., & Weng, Q. (2023). Nighttime light remote sensing for urban applications: Progress, challenges, and prospects. ISPRS Journal of Photogrammetry and Remote Sensing, 202, 125–141. https://doi.org/10.1016/j.isprsjprs.2023.05.028
12. العبيد، سعد صالح خضر. (2025). الإملاء في النسيج الحضري للتصميم الأساس لمدينة قره قوش. مجلة واسط للعلوم الإنسانية،21(4)، 417-432.
Downloads
Published
Issue
Section
License
Copyright (c) 2026 Prof. Dr. Wasan Shihab Ahmed, (2)Prof. Dr. Riyadh Kadhim Al-Jumaili,(3) Asst. Prof. Dr. Israa Talib Jassim, (4) Dr. Fatima Hadi Saleh Prof. Dr. Israa Haitham Ahmed

This work is licensed under a Creative Commons Attribution 4.0 International License.

