Results 11 to 20 of about 108,259,639 (144)

Application of Luojia 1-01 Nighttime Images for Detecting the Light Changes for the 2019 Spring Festival in Western Cities, China [PDF]

open access: yesRemote Sensing, 2020
This study analyzed changes in nighttime light during the 2019 Spring Festival using Luojia 1-01 nighttime images in six western cities of China (Chengdu, Panzhihua, Kunming, Yuxi, Lhasa, and Jinchang).
Chengye Zhang, Jun Yue, Qiming Qin
exaly   +6 more sources

On-Orbit Geometric Calibration and Validation of Luojia 1-01 Night-Light Satellite [PDF]

open access: yesRemote Sensing, 2019
The Luojia 1-01 Satellite (LJ1-01) is the first professional night-light remote-sensing satellite in China, and thus, it is of pioneering significance for the development of night-light remote sensing satellites in China and the application of remote ...
Yonghua Jiang, Guo Zhang, Yanbin Zhao
exaly   +6 more sources

Star-Based Calibration of the Installation Between the Camera and Star Sensor of the Luojia 1-01 Satellite [PDF]

open access: yesRemote Sensing, 2019
Ground control points (GCPs) are generally used to calibrate the installation between the camera and star sensor of a satellite in orbit and improve the geometric positioning accuracy of the satellite.
Yonghua Jiang, Guo Zhang, Zhichao Guan
exaly   +6 more sources

Anthropogenic Heat Flux Estimation Based on Luojia 1-01 New Nighttime Light Data: A Case Study of Jiangsu Province, China [PDF]

open access: yesRemote Sensing, 2020
With the rapid process of urbanization, anthropogenic heat generated by human activities has become an important factor that drives the changes in urban climate and regional environmental quality.
Hanqiu Xu
exaly   +6 more sources

Using Dual Spatial Clustering Models for Urban Fringe Areas Extraction Based on Night-time Light Data: Comparison of NPP/VIIRS, Luojia 1-01, and NASA’s Black Marble

open access: yesISPRS International Journal of Geo-Information, 2023
Night-time light data (NTL) have been extensively utilized to map urban fringe areas, but to date, there has not been a comprehensive evaluation of the existing spatial clustering methods for delineating the urban fringe using different types of night ...
Jie Zhu   +5 more
doaj   +3 more sources

Analyzing Pixel-Level Relationships between Luojia 1-01 Nighttime Light and Urban Surface Features by Separating the Pixel Blooming Effect [PDF]

open access: yesRemote Sensing, 2021
Nighttime light (NTL) remote sensing data can effectively reveal human activities in urban development. It has received extensive attention in recent years, owing to its advantages in monitoring urban socio-economic activities.
Ji Wu, Zhi Zhang, Xiao Yang, Xi Li
doaj   +3 more sources

Analyzing parcel-level relationships between Luojia 1-01 nighttime light intensity and artificial surface features across Shanghai, China: A comparison with NPP-VIIRS data

open access: yesInternational Journal of Applied Earth Observations and Geoinformation, 2020
Nighttime light (NTL) remote sensing data have been widely used to derive socioeconomic indices at national and regional scales. However, few studies analyzed the factors that may explain NTL variations at a fine scale due to the limited resolution of ...
Congxiao Wang   +7 more
doaj   +3 more sources

Automatic built-up area extraction by feature-level fusion of Luojia 1–01 nighttime light and Sentinel satellite imageries in Google Earth Engine [PDF]

open access: yesAdvances in Space Research, 2023
Today, with the non-stop expansion of urbanization, mapping urban areas and monitoring their dynamic changes have become challenges for governments and also a hot topic for researchers. Remote sensing imageries play a key role in urban studies, the extraction of urban built-up areas, and monitoring their changes.
Samadzadegan, Farhad   +2 more
openaire   +2 more sources

Housing Vacancy Rate in Major Cities in China: Perspectives from Nighttime Light Data

open access: yesComplexity, 2020
In recent years, the phenomenon of housing vacancy rate (HVR) has attracted considerable attention, especially concerning unjustified expansions of Chinese cities.
Zhiru Tan, Donglan Wei, Zixu Yin
doaj   +2 more sources

Application note: evaluation of the Gini coefficient at the county level in mainland China based on Luojia 1-01 nighttime light images

open access: yesComputational Urban Science
The Luojia 1–01 (LJ1-01) night lighting satellite's superior spatial information capture capability provides conditions for accurate assessment of regional wealth distribution inequality (RWDI) at a small scale.
Banshao Hu   +3 more
doaj   +3 more sources

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