Results 31 to 40 of about 3,652,428 (257)

Multi-scale estimation of poverty rate using night-time light imagery

International Journal of Applied Earth Observations and Geoinformation, 2023
Explicit poverty data are critical for policymaking and targeting humanitarian aid. Poverty rate is the most widely accepted definition of a poverty status. However, poverty rate data are commonly available at country-level. Here, we proposed an approach
Zixuan Shao, Xi Li
doaj   +1 more source

Assessing the Ability of Luojia 1-01 Imagery to Detect Feeble Nighttime Lights [PDF]

Sensors, 2019
The Luojia1-01 (LJ1-01) satellite launched on 2 June 2018 provides a new option for nighttime light (NTL) application research. In this paper, four types of human settlements, such as cities, counties, towns and villages, are sampled to evaluate the potential of LJ1-01 to detect feeble NTL by comparing with the NTL images from the Defense ...
Xue Li 0032, Zhumei Liu, Xiaolin Chen, Jie Sun   +3 more
openaire   +3 more sources

Fifty years of nightly global low-light imaging satellite observations

Frontiers in Remote Sensing, 2022
The history of satellite remote sensing of nighttime lights traces it is roots back the U.S. Air Force Defense Meteorological Satellite Program (DMSP) which began flying polar orbiting satellites with cloud imaging sensors in the 1970’s.
Christopher D. Elvidge, Kimberly Baugh, Tilottama Ghosh, Mikhail Zhizhin, Mikhail Zhizhin, Feng Chi Hsu, Tamara Sparks, Morgan Bazilian, Paul C. Sutton, Kenneth Houngbedji, Ran Goldblatt   +10 more
doaj   +1 more source

Measuring the Size and Growth of Cities Using Nighttime Light [PDF]

, 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, Rafael Ch, Vargas Duque, Juan Fernando, Diego A. Martin, Ch, Rafael, Martin, Diego A.   +5 more
core   +1 more source

An Approach of Identifying and Extracting Urban Commercial Areas Using the Nighttime Lights Satellite Imagery [PDF]

Remote Sensing, 2020
Urban commercial areas can reflect the spatial distribution of business activities. However, the scope of urban commercial areas cannot be easily detected by traditional methods because of difficulties in data collection. Considering the positive correlation between business scale and nighttime lighting, this paper proposes a method of urban commercial
Xuzhe Duan, Qingwu Hu, Pengcheng Zhao, Shaohua Wang 0003, Mingyao Ai   +4 more
openaire   +2 more sources

Fluctuations in anthropogenic nighttime lights from satellite imagery for five cities in Niger and Nigeria [PDF]

Scientific Data, 2018
AbstractDynamic measures of human populations are critical for global health management but are often overlooked, largely because they are difficult to quantify. Measuring human population dynamics can be prohibitively expensive in under-resourced communities.
Bharti, Nita, Tatem, Andrew J.
openaire   +4 more sources

SPATIOTEMPORAL EVOLUTION OF THE IMBALANCED REGIONAL DEVELOPMENT IN MAINLAND CHINA USING DMSP-OLS DATA [PDF]

The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2017
The Defense Meteorological Satellite Programs Operational Linescan System (DMSP-OLS) nighttime lights imagery has been widely used to monitor economic activities and regional development in recent decades.
K. Chen, T. Jia
doaj   +1 more source

MORFOLOGI KOTA MALANG: SEBUAH TINJAUAN DARI NIGHTTIME LIGHT SATELLITE IMAGERY [PDF]

, 2023
Menelaah morfologi kota memiliki kelebihan dalam menjelaskan bentuk struktur dan karakteristik sebuah kota dan perubahannya dari waktu ke waktu. Berbagai metode banyak dihasilkan untuk mengidentifikasi morfologi kota namun sering kali menemui kesulitan ...
Firman Afrianto, Rendra Graha, Dimas Tri, Afrianto, Firman, Dimas Tri Rendra Graha   +3 more
core   +1 more source

Estimation of the PM2.5 Pollution Levels in Beijing Based on Nighttime Light Data from the Defense Meteorological Satellite Program-Operational Linescan System

Atmosphere, 2015
Nighttime light data record the artificial light on the Earth’s surface and can be used to estimate the degree of pollution associated with particulate matter with an aerodynamic diameter of less than 2.5 μm (PM2.5) in the ground-level atmosphere.
Runya Li, Xiangnan Liu, Xuqing Li
doaj   +1 more source

Delineating Peri-Urban Areas Using Multi-Source Geo-Data: A Neural Network Approach and SHAP Explanation

Remote Sensing, 2023
Delineating urban and peri-urban areas has often used information from multiple sources including remote sensing images, nighttime light images, and points-of-interest (POIs).
Xiaomeng Sun, Xingjian Liu, Yang Zhou
doaj   +1 more source