Results 31 to 40 of about 34,981 (232)

Nighttime Lights and Population Migration: Revisiting Classic Demographic Perspectives with an Analysis of Recent European Data

Remote Sensing, 2020
This study examines whether the Visible Infrared Imaging Radiometer Suite (VIIRS) nighttime lights can be used to predict population migration in small areas in European Union (EU) countries.
Xi Chen
doaj   +1 more source

The urbanization impact in China: A prospective model (1992-2025) [PDF]

, 2018
The gradual spread of urbanization, the phenomenon known under the term urban sprawl, has become one of the paradigms that have characterized the urban development since the second half of the twentieth century and early twenty-first century. The arrival
Arellano Ramos, Blanca, Roca Cladera, Josep   +1 more
core   +1 more source

Does Light Pollution Affect Nighttime Ground-Level Ozone Concentrations?

Atmosphere, 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, Nor Azam Ramli, Norrimi Rosaida Awang, Mohd Rodzi Ismail, Mohd Talib Latif, Nazatul Syadia Zainordin   +5 more
doaj   +1 more source

Evidence that natural selection maintains genetic variation for sleep in Drosophila melanogaster. [PDF]

, 2015
BackgroundDrosophila melanogaster often shows correlations between latitude and phenotypic or genetic variation on different continents, which suggests local adaptation with respect to a heterogeneous environment.
Begun, David J, Chiu, Joanna C, Saelao, Perot, Svetec, Nicolas, Zhao, Li   +4 more
core   +1 more source

A harmonized global nighttime light dataset 1992–2018 [PDF]

Scientific Data, 2020
Abstract Nighttime light (NTL) data from the Defense Meteorological Satellite Program (DMSP)/Operational Linescan System (OLS) and the Visible Infrared Imaging Radiometer Suite (VIIRS) on the Suomi National Polar-orbiting Partnership satellite provide a great opportunity for monitoring human activities from regional to global scales ...
Li, Xuecao, Zhou, Yuyu, Zhao, Min, Zhao, Xia   +3 more
openaire   +2 more sources

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

Remote 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, Jiansheng Wu, Jian Peng, Qiwen Cao   +3 more
doaj   +1 more source

Spatiotemporal Patterns of COVID-19 Impact on Human Activities and Environment in China Using Nighttime Light and Air Quality Data

, 2020
In order to analyze the impact of COVID-19 on people's lives, activities and the natural environment, this paper investigates the spatial and temporal characteristics of Night Time Light (NTL) radiance and Air Quality Index (AQI) before and during the ...
Flynn, Colin, Hou, Ruizhi, Houser, Paul, Hu, Tao, Lan, Hai, Liu, Qian, Liu, Wei, Lu, Mingyue, Sha, Dexuan, Yang, Chaowei, Zhang, Luyao   +10 more
core   +1 more source

What do we know about poverty in North Korea? [PDF]

, 2020
Reliable quantitative information on the North Korean economy is extremely scarce. In particular, reliable income per capita and poverty figures for the country are not available.
Crespo Cuaresma, Jesus, Danylo, Olha, Fritz, Steffen, Hofer, Martin, Kharas, Homi, Laso Bayas, Juan Carlos   +5 more
core   +2 more sources

A Multi-scale features-based cloud detection method for Suomi-NPP VIIRS day and night imagery [PDF]

ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences
Cloud detection is a necessary step before the application of remote sensing images. However, most methods focus on cloud detection in daytime remote sensing images.
J. Li, C. Hu, Q. Sheng, J. Xu, C. Zhu, W. Zhang   +5 more
doaj   +1 more source

Nighttime Vehicle Detection and Tracking with Occlusion Handling by Pairing Headlights and Taillights

Applied Sciences, 2020
In recent years, vision-based vehicle detection has received considerable attention in the literature. Depending on the ambient illuminance, vehicle detection methods are classified as daytime and nighttime detection methods.
Tuan-Anh Pham, Myungsik Yoo
doaj   +1 more source