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Author (up) Choo, G.-H.; Jeong, M.-J.
Title Estimation of nighttime aerosol optical thickness from Suomi-NPP DNB observations over small cities in Korea Type Journal Article
Year 2016 Publication Korean Journal of Remote Sensing Abbreviated Journal Korean Journal of Remote Sensing
Volume 32 Issue 2 Pages 73-86
Keywords Remote Sensing
Abstract In this study, an algorithm to estimate Aerosol Optical Thickness (AOT) over small cities during nighttime has been developed by using the radiance from artificial light sources in small cities measured from Visible Infrared Imaging Radiometer Suite (VIIRS) sensor's Day/Night Band (DNB) aboard the Suomi-National Polar Partnership (Suomi-NPP) satellite. The algorithm is based on Beer's extinction law with the light sources from the artificial lights over small cities. AOT is retrieved for cloud-free pixels over individual cities, and cloud-screening was conducted by using the measurements from M-bands of VIIRS at infrared wavelengths. The retrieved nighttime AOT is compared with the aerosol products from MODerate resolution Imaging Spectroradiometer (MODIS) aboard Terra and Aqua satellites. As a result, the correlation coefficients over individual cities range from around 0.6 and 0.7 between the retrieved nighttime AOT and MODIS AOT with Root-Mean-Squared Difference (RMSD) ranged from 0.14 to 0.18. In addition, sensitivity tests were conducted for the factors affecting the nighttime AOT to estimate the range of uncertainty in the nighttime AOT retrievals. The results of this study indicate that it is promising to infer AOT using the DNB measaurements over small cities in Korea at night. After further development and refinement in the future, the developed retrieval algorithm is expected to produce nighttime aerosol information which is not operationally available over Korea.
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ISSN 1225-6161 ISBN Medium
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Notes Approved no
Call Number LoNNe @ kyba @ Serial 1524
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Author (up) Chronopoulos, D.K.; Kampanelis, S.; Oto-Peralías, D.; Wilson, J.O.S.
Title Ancient colonialism and the economic geography of the Mediterranean Type Journal Article
Year 2020 Publication Journal of Economic Geography Abbreviated Journal
Volume in press Issue Pages
Keywords Remote Sensing
Abstract This article investigates the legacy of ancient Phoenician, Greek and Etruscan colonialism in shaping the economic geography of the Mediterranean region. Utilising historical data on ancient colonies and current data on population density and night light emissions (as a proxy for economic activity), we find that geographical areas colonised by these ancient civilisations have higher population density and economic activity in the present day. We also find that ancient colonialism affected the origin and evolution of the urban system of cities and settlements prevalent in the Mediterranean region.
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ISSN 1468-2702 ISBN Medium
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Notes Approved no
Call Number GFZ @ kyba @ Serial 3253
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Author (up) Chu, L., Oloo, F., Sudmanns, M., Tiede, D., Hölbling, D.,Blaschke, T., & Teleoaca, I.
Title Monitoring long-term shoreline dynamics and human activities in the Hangzhou Bay, China, combining daytime and nighttime EO data Type Journal Article
Year 2020 Publication Big Earth Data Abbreviated Journal
Volume Issue Pages
Keywords Remote Sensing
Abstract Shorelines are vulnerable to anthropogenic activities including urbanization, land reclamation and sediment loading. Shoreline changes may be a reflection of the degradation of coastal ecosystems because of human activities. Understanding the shoreline dynamics is, therefore, a topic of global concern. Earth observation data, such as multi-temporal satellite images, are an important resource for assessing changes in coastal ecosystems. In this research, we used Google Earth Engine (GEE) to monitor and map historical shoreline dynamics in the Hangzhou Bay in China where the Qiantang River flows into the East China Sea. Specifically, we aimed to capture and quantify both the spatial and temporal shoreline changes and to assess the link between anthropogenic activities and shoreline changes on the integrity of this coastal area. We implemented a Tasselled Cap analysis (TCA) on Landsat imagery from 1985 to 2018 in GEE to calculate the wetness coefficient. We then applied Otsu method for automatic image thresholding on the wetness coefficient to detect waterbodies and shoreline changes. Further, we adopted the nighttime light data from the Defense Meteorological Satellite Program’s Operational Linescan System (DMSP-OLS) from 1992 to 2013 as a proxy of human activities. The results show that in the hotspot areas, the shoreline has moved by more than 5 km in the last decades, accounting for approximately 900 km2 of land accretion. Within this area, the human activity, indicated by the intensity of nighttime light, increased significantly. The results of this work reveal the influence of human activities on the shoreline dynamics and can support policies that promote the sustainable use and conservation of coastal environments. Our methodology can be transferred and applied to other coastal zones in various regions and scaled up to larger areas.
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Call Number IDA @ intern @ Serial 2952
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Author (up) Cinzano, P.
Title The growth of light pollution in north-eastern Italy from 1960 to 1995 Type Journal Article
Year 2000 Publication Memorie Della Societ{à} Astronomica Italiana Abbreviated Journal
Volume 71 Issue Pages 159
Keywords Remote Sensing
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Call Number LoNNe @ kagoburian @ Serial 913
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Author (up) Cinzano, P.; Falchi, F.; Elvidge, C.
Title Recent progresses on a second world atlas of the night-sky brightness--LPTRAN/LPDART realistic models, tomography of light pollution, accurate validation methods and extended satellite data analysis Type Conference Article
Year 2006 Publication Meeting of the IAU Comm Abbreviated Journal
Volume 50 Issue Pages
Keywords Remote Sensing
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Notes Approved no
Call Number LoNNe @ kagoburian @ Serial 914
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