Results 31 to 40 of about 27,854 (249)

Ecological Corridor Construction Based on Least-Cost Modeling Using Visible Infrared Imaging Radiometer Suite (VIIRS) Nighttime Light Data and Normalized Difference Vegetation Index

open access: yesLand, 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]

open access: yesAtmospheric 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

open access: yesThe 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

Tracking Electrification in Vietnam Using Nighttime Lights [PDF]

open access: yesRemote Sensing, 2014
We report on a systematic ground-based validation of DMSP-OLS night lights imagery to detect rural electrification in Vietnam. Based on an original survey of village-level units in Vietnam, this study compares nighttime light output from the U.S. Air Force Defense Meteorological Satellite Program’s Operational Linescan System (DMSP-OLS) against ground ...
Min, Brian, Gaba, Kwawu Mensan
openaire   +2 more sources

Global spatial patterns between nighttime light intensity and urban building morphology

open access: yesInternational Journal of Applied Earth Observations and Geoinformation, 2023
The comprehensive characterization of global urbanization requires consideration of both human activities and urban physical structures. Both human activities and urban physical structures exhibit regular self-similar patterns, yet the spatial patterns ...
Bin Wu   +5 more
doaj   +1 more source

Planar Block Adjustment for China’s Land Regions with LuoJia1-01 Nighttime Light Imagery

open access: yesRemote Sensing, 2019
The Luojia1-01 satellite provides high-resolution, high-sensitivity nighttime light data at a resolution of 130 m. To effectively use the Luojia1-01 nighttime light data for global applications, the problems of relative and absolute positioning accuracy ...
Xin Li   +6 more
doaj   +1 more source

Does Light Pollution Affect Nighttime Ground-Level Ozone Concentrations?

open access: yesAtmosphere, 2022
Ground-level ozone (O3) is mainly produced during daytime in the presence of ultraviolet (UV) light and later destroyed by nitrogen oxides during nighttime.
Syabiha Shith   +5 more
doaj   +1 more source

Can Nighttime Light Data Be Used to Estimate Electric Power Consumption? New Evidence from Causal-Effect Inference

open access: yesEnergies, 2019
Nighttime light data are often used to estimate some socioeconomic indicators, such as energy consumption, GDP, population, etc. However, whether there is a causal relationship between them needs further study.
Yongguang Zhu   +4 more
doaj   +1 more source

Spatial Correlation Between Urban Nighttime Light and Nighttime Robbery, Snatching, and Theft Crimes from the Perspective of Functional Areas: A Case Study of H City

open access: yesRedai dili, 2022
With accelerated urbanization, urban nighttime crimes—especially robbery, snatching, and theft—have received increasing attention from scholars as the highest incidence of local criminal crimes.
Wang Canxiang   +5 more
doaj   +1 more source

Where Does Nighttime Light Come From? Insights from Source Detection and Error Attribution

open access: yesRemote Sensing, 2020
Nighttime light remote sensing has aroused great popularity because of its advantage in estimating socioeconomic indicators and quantifying human activities in response to the changing world.
Zhehao Ren, Yufu Liu, Bin Chen, Bing Xu
doaj   +1 more source

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