Results 41 to 50 of about 31,913 (277)
Evolution of Urban Spatial Clusters in China: A Graph-Based Method Using Nighttime Light Data
, 2022 An urban spatial cluster (USC) describes one or more geographic agglomerations and the linkages among cities. USCs are conventionally delineated based on predefined administrative boundaries of cities, without considering the dynamic and evolving nature ...
Chen, Zuoqi +9 more
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Correlation Analysis of CO2 Concentration Based on DMSP-OLS and NPP-VIIRS Integrated Data
Remote Sensing, 2022 In view of global warming, caused by the increase in the concentration of greenhouse gases, China has proposed a series of carbon emission reduction policies.
Chen Zuo +5 more
doaj +1 more source
Nighttime imagery: can Zipf's law identify urban systems? [PDF]
, 2023 Satellite nocturnal images of the Earth are a useful way to identify urbanization. Nighttime lights have been used in a range of scientific contributions, including studies on building human development indices and on the identification of megalopolises ...
Roca Cladera, Josep +1 more
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Measuring the Size and Growth of Cities Using Nighttime Light
, 2020 This paper uses nighttime luminosity to estimate a globally comparable measure of the size of metropolitan areas around the world for the years 2000 and 2010. We apply recently-proposed methodologies that correct the known problems of available nighttime
Juan F. Vargas +5 more
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IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2022 The new visible infrared imaging radiometer suite (VIIRS) onboard the National Oceanic and Atmospheric Administration-20 satellite (NOAA-20) is capable of imaging the Earth during both daytime and nighttime.
Yangguang Li +7 more
doaj +1 more source
Land, 2021 Anthropic pressure is one of the main drivers of landscape change and biodiversity loss. Artificial nighttime light, which can affect species behavior, is an important human-induced threat to biodiversity, but it is often ignored in ecological ...
Jiameng Hu, Yanfang Liu, Jian Fang
doaj +1 more source
Sensitivity studies of nighttime top-of-atmosphere radiances from artificial light sources using a 3-D radiative transfer model for nighttime aerosol retrievals [PDF]
Atmospheric Measurement Techniques, 2023 By accounting for surface-based light source emissions and top-of-atmosphere (TOA) downward lunar fluxes, we adapted the spherical harmonics discrete ordinate method (SHDOM) 3-dimensional (3-D) radiative transfer model (RTM) to simulate nighttime 3-D TOA
J. Zhang +7 more
doaj +1 more source
Shedding Light on the Shadow Economy: A Nighttime Light Approach
The Journal of Development Studies, 2016 AbstractMeasuring the shadow economy is inherently difficult, but critical for understanding economic development. Using census data on formal and informal sectors in Cambodia, we document that 96.6 per cent of non-farm establishments do not formally register with the government, and their sales accounted for 76.6 per cent of total sales in 2011 ...
Tanaka, Kiyoyasu, Keola, Souknilanh
openaire +1 more source
Non-visual effects of light on human circadian physiology and neurobehavioral performance [PDF]
, 2015 Light is of crucial importance for human circadian rhythms. In fact, light exposure allows for resetting individual biological rhythms to the 24-h day.
Gabel, Virginie
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Distribution map of nighttime light index in Qingdao.
, 2021 Distribution map of nighttime light index in Qingdao.
Liu Lin (696224) +3 more
core +1 more source