Results 41 to 50 of about 3,411,012 (280)

Nighttime Light Intensity and Child Health Outcomes in Bangladesh [PDF]

open access: yes, 2022
This study examines the impact of nighttime light intensity on child health outcomes in Bangladesh. We use nighttime light intensity as a proxy measure of urbanization and argue that the higher intensity of nighttime light, the higher is the degree of ...
Alam, Masud   +3 more
core   +1 more source

Evaluating the Ability of NOAA-20 Monthly Composite Data for Socioeconomic Indicators Estimation and Urban Area Extraction

open access: yesIEEE 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

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

The Uncertainty of Nighttime Light Data in Estimating Carbon Dioxide Emissions in China: A Comparison between DMSP-OLS and NPP-VIIRS

open access: yesRemote Sensing, 2017
Nighttime light data can characterize urbanization, economic development, population density, energy consumption and other human activities. Additionally, carbon dioxide (CO2) emissions are closely related to the scope and intensity of human activities ...
Xiwen Zhang   +3 more
doaj   +1 more source

Nighttime imagery: can Zipf's law identify urban systems? [PDF]

open access: yes, 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
core   +1 more source

Non-visual effects of light on human circadian physiology and neurobehavioral performance [PDF]

open access: yes, 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
core   +1 more source

Distribution map of nighttime light index in Qingdao.

open access: yes, 2021
Distribution map of nighttime light index in Qingdao.
Liu Lin (696224)   +3 more
core   +1 more source

NDELS: A Novel Approach for Nighttime Dehazing, Low-Light Enhancement, and Light Suppression [PDF]

open access: yes, 2023
This paper tackles the intricate challenge of improving the quality of nighttime images under hazy and low-light conditions. Overcoming issues including nonuniform illumination glows, texture blurring, glow effects, color distortion, noise disturbance ...
Bernabel, Silvano A., Agaian, Sos S.
core   +1 more source

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