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夜间灯光遥感揭示21世纪以来中国西北部地区城市化演化格局与过程 CSCD PKU
期刊论文 | 2024 , 28 (06) , 1497-1514 | 遥感学报
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Abstract :

新疆维吾尔自治区(以下简称“新疆”)作为中国西部战略屏障和向西开放的重要窗口,评估其城市化发展状况对于全国改革发展大局和“一带一路”倡议具有重要意义。相较于传统研究,夜间灯光遥感已被证明能够对人类活动强度和地区综合发展水平进行更客观、空间尺度更灵活、覆盖范围更广的监测。因此,本文利用2000年—2020年长时序夜间灯光遥感数据,采用标准差椭圆、时间序列分解以及夜间灯光发展指数等方法,从空间格局与时序演化上综合分析了21世纪以来新疆城市化进程。结果显示,2000年—2020年新疆城市化发展整体呈现向西南方向扩张的趋势,南疆地区发展速度强劲;21世纪以来新疆城市化演化过程可分为缓慢发展期(2007年之前)、波动增长期(2008年—2014年)和加速上升期(2015年之后) 3个阶段;新疆城镇地区及大部分地市的社会发展愈趋均衡,而乡村地区仍处于快速发展的差异化阶段。总体而言,21世纪以来新疆城市化进程处于快速且均衡发展的状态。

Keyword :

城市化演化 城市化演化 夜间灯光发展指数 夜间灯光发展指数 夜间灯光遥感 夜间灯光遥感 新疆维吾尔自治区 新疆维吾尔自治区 时间序列分解 时间序列分解

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GB/T 7714 刘少阳 , 陈佐旗 , 施开放 et al. 夜间灯光遥感揭示21世纪以来中国西北部地区城市化演化格局与过程 [J]. | 遥感学报 , 2024 , 28 (06) : 1497-1514 .
MLA 刘少阳 et al. "夜间灯光遥感揭示21世纪以来中国西北部地区城市化演化格局与过程" . | 遥感学报 28 . 06 (2024) : 1497-1514 .
APA 刘少阳 , 陈佐旗 , 施开放 , 吴宾 , 魏冶 , 王丛笑 et al. 夜间灯光遥感揭示21世纪以来中国西北部地区城市化演化格局与过程 . | 遥感学报 , 2024 , 28 (06) , 1497-1514 .
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The Assessment of Industrial Agglomeration in China Based on NPP-VIIRS Nighttime Light Imagery and POI Data SCIE
期刊论文 | 2024 , 16 (2) | REMOTE SENSING
WoS CC Cited Count: 2
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Abstract :

Industrial agglomeration, as a typical aspect of industrial structures, significantly influences policy development, economic growth, and regional employment. Due to the collection limitations of gross domestic product (GDP) data, the traditional assessment of industrial agglomeration usually focused on a specific field or region. To better measure industrial agglomeration, we need a new proxy to estimate GDP data for different industries. Currently, nighttime light (NTL) remote sensing data are widely used to estimate GDP at diverse scales. However, since the light intensity from each industry is mixed, NTL data are being adopted less to estimate different industries' GDP. To address this, we selected an optimized model from the Gaussian process regression model and random forest model to combine Suomi National Polar-Orbiting Partnership-Visible Infrared Imaging Radiometer Suite (NPP-VIIRS) NTL data and points-of-interest (POI) data, and successfully estimated the GDP of eight major industries in China for 2018 with an accuracy (R2) higher than 0.80. By employing the location quotient to measure industrial agglomeration, we found that a dominated industry had an obvious spatial heterogeneity. The central and eastern regions showed a developmental focus on industry and retail as local strengths. Conversely, many western cities emphasized construction and transportation. First-tier cities prioritized high-value industries like finance and estate, while cities rich in tourism resources aimed to enhance their lodging and catering industries. Generally, our proposed method can effectively measure the detailed industry agglomeration and can enhance future urban economic planning.

Keyword :

Gaussian process Gaussian process GDP GDP industrial agglomeration industrial agglomeration nighttime light nighttime light points of interest points of interest

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GB/T 7714 Chen, Zuoqi , Xu, Wenxiang , Zhao, Zhiyuan . The Assessment of Industrial Agglomeration in China Based on NPP-VIIRS Nighttime Light Imagery and POI Data [J]. | REMOTE SENSING , 2024 , 16 (2) .
MLA Chen, Zuoqi et al. "The Assessment of Industrial Agglomeration in China Based on NPP-VIIRS Nighttime Light Imagery and POI Data" . | REMOTE SENSING 16 . 2 (2024) .
APA Chen, Zuoqi , Xu, Wenxiang , Zhao, Zhiyuan . The Assessment of Industrial Agglomeration in China Based on NPP-VIIRS Nighttime Light Imagery and POI Data . | REMOTE SENSING , 2024 , 16 (2) .
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What Is the Nighttime Light Interaction Index? Validations at Yangtze River Delta Urban Agglomerations SCIE
期刊论文 | 2024 , 21 | IEEE GEOSCIENCE AND REMOTE SENSING LETTERS
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Urban spatial interaction serves as an indicative measure for estimating the intensity and character of interurban linkages and relationships. The previous studies have utilized intercity relational data (e.g., population migration (PM), goods trade, and information exchange) to build up urban connections directly. Besides, the nighttime light (NTL) data have also been adopted to simulate a dynamic urban intercity flow. However, the relevant studies have not clearly defined the urban spatial interaction based on the NTL data. To answer this question, we used trial-and-error testing to define the NTL-based interaction. First, five traditional urban interactions were selected as the potential definitions, including PM, transfer of innovation, information flow (IF), financial flow, and urban composite interaction (CI). Second, as usual, the NTL-based urban interaction, named the NTL interaction (NTLI) index, was simulated based on the NPP-VIIRS-like NTL data and the radiation model. Taking the Yangtze River Delta urban agglomerations (YRDUAs) as an example, we found that the NTL-based urban interaction is more like the PM at the urban agglomeration scale and the provincial scale with R-2 of 0.71 and 0.59, respectively. In addition to this, the NTLI index has a weak correlation with the transfer of patent (TP) index, IF index, economic interaction (EI) index, and CI index. To sum up, the interaction network from NTL data can be an adequate proxy of urban population interaction, rather than the knowledge network or economic network. This study provides a new thought for urban network simulation and urban population mobility research.

Keyword :

Economics Economics Indexes Indexes Nighttime light (NTL) data Nighttime light (NTL) data NTL interaction (NTLI) index NTL interaction (NTLI) index Patents Patents Sociology Sociology Statistics Statistics Urban areas Urban areas urban spatial interaction urban spatial interaction Web and internet services Web and internet services Yangtze River Delta urban agglomerations (YRDUAs) Yangtze River Delta urban agglomerations (YRDUAs)

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GB/T 7714 Tu, Yue , Wang, Congxiao , Yu, Bailang et al. What Is the Nighttime Light Interaction Index? Validations at Yangtze River Delta Urban Agglomerations [J]. | IEEE GEOSCIENCE AND REMOTE SENSING LETTERS , 2024 , 21 .
MLA Tu, Yue et al. "What Is the Nighttime Light Interaction Index? Validations at Yangtze River Delta Urban Agglomerations" . | IEEE GEOSCIENCE AND REMOTE SENSING LETTERS 21 (2024) .
APA Tu, Yue , Wang, Congxiao , Yu, Bailang , Chen, Zuoqi , Zhang, Tinglin . What Is the Nighttime Light Interaction Index? Validations at Yangtze River Delta Urban Agglomerations . | IEEE GEOSCIENCE AND REMOTE SENSING LETTERS , 2024 , 21 .
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Tracking the dynamics of tidal wetlands with time-series satellite images in the Yangtze River Estuary, China SCIE
期刊论文 | 2024 , 17 (1) | INTERNATIONAL JOURNAL OF DIGITAL EARTH
WoS CC Cited Count: 1
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Tidal wetlands provide a variety of ecosystem services to coastal communities but suffer severe losses due to anthropogenic activities in the Yangtze River Estuary (YRE). However, the detailed dynamics of tidal wetlands have not been well studied with sufficient spatiotemporal resolution. Here, we proposed a rapid classification method that integrates the COntinuous monitoring of Land Disturbance (COLD) algorithm and Median Composite (MC) based on the dense Landsat time series to track the dynamic processes of tidal wetlands in the YRE from 1990 to 2020. The results showed that the COLD-MC demonstrated remarkable effectiveness in detecting the change of tidal wetlands and excellent overall accuracy and kappa coefficient ranging from 90% to 96% and 0.89-0.95, respectively. The overall accuracy of change detection was 97% with an absolute error of 0.4 years. We found that the total area of tidal wetlands experienced a net loss of 59.75 km2 in the YRE, but the gain and loss of the study period were 1556.07 and 1615.82 km2, respectively. Land reclamation, sediment reduction, and Spartina alterniflora invasion pose significant threats to tidal wetlands. Sustainable management could be implemented through the establishment of nature reserves and ecological sediment enhancement engineering projects.

Keyword :

COLD-MC COLD-MC dynamic equilibrium dynamic equilibrium land reclamation land reclamation landsat time-series landsat time-series sediment starvation sediment starvation Tidal wetlands Tidal wetlands

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GB/T 7714 Wu, Wenting , Lin, Zhibin , Chen, Chunpeng et al. Tracking the dynamics of tidal wetlands with time-series satellite images in the Yangtze River Estuary, China [J]. | INTERNATIONAL JOURNAL OF DIGITAL EARTH , 2024 , 17 (1) .
MLA Wu, Wenting et al. "Tracking the dynamics of tidal wetlands with time-series satellite images in the Yangtze River Estuary, China" . | INTERNATIONAL JOURNAL OF DIGITAL EARTH 17 . 1 (2024) .
APA Wu, Wenting , Lin, Zhibin , Chen, Chunpeng , Chen, Zuoqi , Zhao, Zhiyuan , Su, Hua . Tracking the dynamics of tidal wetlands with time-series satellite images in the Yangtze River Estuary, China . | INTERNATIONAL JOURNAL OF DIGITAL EARTH , 2024 , 17 (1) .
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Assessing multifunctional retrofit potential of urban roof areas and evaluating the power and carbon benefits under efficient retrofit scenarios SCIE
期刊论文 | 2024 , 444 | JOURNAL OF CLEANER PRODUCTION
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Green roof installations and photovoltaic (PV) systems are widely employed roof retrofits that aid cities in mitigating climate change impacts, while avoiding the need for increased land utilization. By integrating PV systems with vegetation on urban roofs, a photovoltaic-green (PV-Green) system can be achieved for multifunctional use of the roof space, thereby simultaneously achieving PV and greening benefits. However, current research solely based on one retrofit type cannot meet the requirement for assessing the multifunctional retrofit potential of urban roofs. In this study, an assessment method is proposed to identify and quantify the multiple retrofit potential of urban roofs by integrating roof attributes (slope, orientation, and area), roof type (gable or flat), solar attributes (radiation and irradiation duration), and biogeochemical simulation. Moreover, three roof retrofit scenarios, Scenario 1 (S1): maximization of PV-Green roofs, Scenario 2 (S2): maximization of PV economic benefits, and Scenario 3 (S3): maximization of public subjective well-being through roof greening, were designed to allocate the use of urban roof spaces and evaluate their respective potential power and carbon benefits at the city scale. Using Shanghai's downtown as an example, the results showed that 85,722 roofs (or 7310.86 ha) were available for multifunctional use. S1 revealed that applying PV-Green roofs can increase the additional green biomass by 0.74 x 107 kg C/yr compared to only installing PV roofs. Moreover, S1 produced the highest power output of 2.31 x 1010 kWh/yr to meet 15.4% of Shanghai's electricity demand. S2 identified 609 flat roofs and 70,527 gable roofs that were uneconomical for PV system installation. This indicated that the solar radiation received by most gable roofs was insufficient to cover the installation cost. S3 offered a biomass production of 1.48 x 107 kg C/yr and increased carbon stocks in Shanghai by 0.87%. This assessment method provides urban planners and policymakers with an analytical tool to optimize the use of urban roof spaces, thereby enhancing urban livability and sustainability.

Keyword :

GIS GIS Green roof Green roof Photovoltaic-green roof Photovoltaic-green roof Potential area Potential area Retrofit scenario Retrofit scenario Roof retrofitting Roof retrofitting

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GB/T 7714 Pan, Zhan , Wang, Congxiao , Yu, Bailang et al. Assessing multifunctional retrofit potential of urban roof areas and evaluating the power and carbon benefits under efficient retrofit scenarios [J]. | JOURNAL OF CLEANER PRODUCTION , 2024 , 444 .
MLA Pan, Zhan et al. "Assessing multifunctional retrofit potential of urban roof areas and evaluating the power and carbon benefits under efficient retrofit scenarios" . | JOURNAL OF CLEANER PRODUCTION 444 (2024) .
APA Pan, Zhan , Wang, Congxiao , Yu, Bailang , Chen, Zuoqi , Yuan, Yuan , Li, Guorong et al. Assessing multifunctional retrofit potential of urban roof areas and evaluating the power and carbon benefits under efficient retrofit scenarios . | JOURNAL OF CLEANER PRODUCTION , 2024 , 444 .
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基于广义相加模型的东南沿海叶绿素a浓度的多重影响与季节差异 CSCD PKU
期刊论文 | 2024 , 39 (01) , 134-148 | 遥感技术与应用
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叶绿素a浓度可以评估海水富营养化状况,对沿海叶绿素a浓度影响因素的研究在海洋环境保护方面具有重要意义。而现有研究多关注自然因素对沿海叶绿素a浓度的影响,忽视了人为因素的作用。因此实验以夜间灯光遥感数据表征人类活动强度,根据夜间灯光亮度和沿海叶绿素a浓度间的关系将东南沿海的城市分为3个类型,并同时结合海表温度、风速、太阳辐射、降水等自然因素,通过广义相加模型(GAM)分析不同季节下3类城市中人为和自然等多重因素对沿海叶绿素a浓度的影响。结果表明:在北海、汕头等类型Ⅰ城市中自然因素主导叶绿素a浓度的变化,春季的主导因素为风速,夏、秋、冬季为海表温度;而人类活动对叶绿素a浓度的影响较小且没有显著的影响关系。珠海、东莞等类型Ⅱ城市的叶绿素a浓度受自然因素主导,春、秋、冬季的主导因素为风速,夏季为海表温度;而人类活动在夏、秋季对沿海叶绿素a浓度有较大的促进作用。深圳、香港等类型Ⅲ城市中人为因素主导叶绿素a浓度的变化,春、夏、秋季人类活动对叶绿素a浓度的影响最大且为负相关,冬季海表温度对叶绿素a浓度的影响最大。

Keyword :

东南沿海 东南沿海 人类活动 人类活动 叶绿素a 叶绿素a 广义相加模型(GAM) 广义相加模型(GAM) 自然因素 自然因素

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GB/T 7714 张婧薇 , 陈佐旗 , 苏华 . 基于广义相加模型的东南沿海叶绿素a浓度的多重影响与季节差异 [J]. | 遥感技术与应用 , 2024 , 39 (01) : 134-148 .
MLA 张婧薇 et al. "基于广义相加模型的东南沿海叶绿素a浓度的多重影响与季节差异" . | 遥感技术与应用 39 . 01 (2024) : 134-148 .
APA 张婧薇 , 陈佐旗 , 苏华 . 基于广义相加模型的东南沿海叶绿素a浓度的多重影响与季节差异 . | 遥感技术与应用 , 2024 , 39 (01) , 134-148 .
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Spatiotemporal variations in nighttime lights in poverty-stricken counties in China EI CSCD PKU
期刊论文 | 2024 , 28 (4) , 940-955 | National Remote Sensing Bulletin
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Poverty is a major problem faced by developing countries. As the world’s largest developing country, China has been committed to poverty eradication. 2020 is the final year of China’s comprehensive victory in the war against poverty. At present, China has entered the post-poverty era, and the reasonable assessment of the poverty reduction effect is the focus of the acceptance work at this stage, which is of great significance to explore a long-term mechanism for solving relative poverty. The county-level geographical unit is the basic unit for China to formulate and implement the macro and micro policies and strategies for regional poverty reduction. Concentrated contiguous poverty-stricken areas concentrated in mountainous areas, old revolutionary base areas, and areas with poor natural resource endowment, with large internal development differences, belong to the most disaster-hit areas of poverty in China. After synthesizing an annual dataset of NPP-VIIRS nighttime light (NTL) data from 2014 to 2020, we developed a county-level NTL index to investigate the poverty reduction effects of 831 national level poverty-stricken counties and 14 concentrated contiguous poverty-stricken areas in China. The economic level of most poverty-stricken counties in China improved significantly during the study period, and the poverty reduction effect was prominent. However, 108 poverty-stricken counties still suffer from negative growth in terms of NTL intensity; these counties are located mainly at the junction of concentrated and contiguous poverty-stricken areas in the western region. The border area, mainly inhabited by ethnic minorities, has a poor ecological environment, a low level of economic development, and a relatively poor self-development ability, which may lead to a relatively poor poverty reduction effect. In addition, the NTL intensity development between the northern and southern parts of the western region is unbalanced. The growth rate of NTL in poor counties decreased from the east to the middle and western regions. In terms of the overall poverty alleviation trend, there was a period of rapid development in poor counties in the year before the declaration of poverty alleviation. However, after the declaration of poverty alleviation, the intensity of NTL decreased, the speed of poverty reduction slowed down, and there may be a risk of returning to poverty in some poor counties. Four NTL development modes, i.e., a small NTL base with a rapid growth rate (mode I), a large NTL base with a rapid growth rate (mode II), a large NTL base with a slow growth rate (mode III), and a small NTL base with a slow growth rate (mode IV), were identified in the 14 concentrated contiguous poverty-stricken areas. The high- and low-restriction modes were distributed at the junction areas of the different provincial administrative boundaries. In addition, poor counties along the border are vulnerable to marginalization. Further analysis indicated that significant NTL changes are apparent in the poverty-stricken counties, as demonstrated by their four poverty alleviation paths including infrastructure poverty alleviation, characteristic industry poverty alleviation, asset income poverty alleviation (photovoltaic poverty alleviation), and relocation poverty alleviation. However, the poverty reduction effect of poverty-stricken counties that take ecological compensation poverty alleviation, social guarantee poverty alleviation, and agricultural industry poverty alleviation as the leading poverty reduction methods are difficult to reflect in the NTL. © 2024 Science Press. All rights reserved.

Keyword :

Concentration (process) Concentration (process) Developing countries Developing countries Disasters Disasters

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GB/T 7714 Hua, Jing , Wu, Bin , Chen, Zuoqi et al. Spatiotemporal variations in nighttime lights in poverty-stricken counties in China [J]. | National Remote Sensing Bulletin , 2024 , 28 (4) : 940-955 .
MLA Hua, Jing et al. "Spatiotemporal variations in nighttime lights in poverty-stricken counties in China" . | National Remote Sensing Bulletin 28 . 4 (2024) : 940-955 .
APA Hua, Jing , Wu, Bin , Chen, Zuoqi , Yang, Chengshu , Tang, Xi , Sun, Feiran et al. Spatiotemporal variations in nighttime lights in poverty-stricken counties in China . | National Remote Sensing Bulletin , 2024 , 28 (4) , 940-955 .
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Nighttime light in China's coastal zone: The type classification approach using SDGSAT-1 Glimmer Imager SCIE
期刊论文 | 2024 , 305 | REMOTE SENSING OF ENVIRONMENT
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Nighttime Light (NTL) is highly concentrated in China ' s coastal zone, leading to negative health impacts on both humans and wildlife. Particularly, in recent years, the widespread adoption of broad-spectrum Light -Emitting Diode (LED) light, a low -carbon technology providing substantial increases in luminosity, has led to certain ecological consequences. Thus, information regarding spatial distribution and composition of different NTL types is essential for formulating sustainable strategies that balance nighttime public security, energy consumption, and ecosystem conservation. However, the availability of such information remains limited. To address this challenge and meet the demand, we developed two new light indices, namely the Ratio Red Light Index (RRLI) and Ratio Blue Light Index (RBLI), based on SDGSAT-1 Glimmer Imager (GLI) multispectral NTL data. We then proposed a threshold method and applied it to the entire coastal zone of China to identify White LED (WLED), Red LED (RLED), and Other lights (Other). Results showed the following. (1) In the coastal zone of China, the total lighting area was 20,517 km 2 , including 20,257 km 2 of terrestrial lights and 260 km 2 of offshore lights; (2) WLED light covered 67% (13,727 km 2 ) of all lighting areas, while RLED lights accounted for only 1% (220 km 2 ); (3) Guangdong had the largest lighting area (5221 km 2 ), with the proportion of WLEDs being the highest among all coastal provinces (almost 90%); (4) The proportions of lighting areas were relatively low in Guangxi, Liaoning, and Hebei. This study represents the first attempt to identify NTL types over large regions at a finer spatial resolution. The approach proposed, including the light indices of RRLI and RBLI, as well as the defined thresholds, is universal and robust for use in NTL type classification. The developed lighting type map, containing comprehensive information on the spatial distribution and composition of NTL, could facilitate the sustainable management of China ' s coastal zones.

Keyword :

China 's coastal zone China 's coastal zone Light -emitting diode (LED) Light -emitting diode (LED) Light index Light index Nighttime light (NTL) Nighttime light (NTL) SDGSAT-1 GLI SDGSAT-1 GLI

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GB/T 7714 Jia, Mingming , Zeng, Haihang , Chen, Zuoqi et al. Nighttime light in China's coastal zone: The type classification approach using SDGSAT-1 Glimmer Imager [J]. | REMOTE SENSING OF ENVIRONMENT , 2024 , 305 .
MLA Jia, Mingming et al. "Nighttime light in China's coastal zone: The type classification approach using SDGSAT-1 Glimmer Imager" . | REMOTE SENSING OF ENVIRONMENT 305 (2024) .
APA Jia, Mingming , Zeng, Haihang , Chen, Zuoqi , Wang, Zongming , Ren, Chunying , Mao, Dehua et al. Nighttime light in China's coastal zone: The type classification approach using SDGSAT-1 Glimmer Imager . | REMOTE SENSING OF ENVIRONMENT , 2024 , 305 .
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Fine simulation of PM2.5 combined with NPP-VIIRS night light remote sensing and mobile monitoring data SCIE
期刊论文 | 2024 , 914 | SCIENCE OF THE TOTAL ENVIRONMENT
WoS CC Cited Count: 1
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Human activity plays a crucial role in influencing PM2.5 concentration and can be assessed through nighttime light remote sensing. Therefore, it is important to investigate whether the nighttime light brightness can enhance the accuracy of PM2.5 simulation in different stages. Utilizing PM2.5 mobile monitoring data, this study introduces nighttime lighting brightness as an additional factor in the PM2.5 simulation model across various time periods. It compares the differences in simulation accuracy, explores the impact of nocturnal human activities on PM2.5 concentrations at different periods of the following day, and analyzes the spatial and temporal pollution pattern of PM2.5 in urban functional areas. The results show that (1) the incorporation of nighttime lighting brightness effectively enhances the model's accuracy (R2), with an improvement ranging from 0.04 to 0.12 for different periods ranges. (2) the model's accuracy improves more prominently during 8:00-12:00 on the following day, and less so during 12:00-18:00, as the PM2.5 from human activities during the night experiences a strong aggregation effect in the morning of the next day, with the effect on PM2.5 concentration declining after diffusion until the afternoon. (3) PM2.5 is primarily concentrated in urban functional areas including construction sites, roads, and industrial areas during each period. But in the period of 8:00-12:00, there is a significant level of PM2.5 pollution observed in commercial and residential areas, due to the human activities that occurred the previous night.

Keyword :

GWR-GBDT GWR-GBDT Mobile monitoring Mobile monitoring NPP-VIIRS NPP-VIIRS PM2.5 simulation PM2.5 simulation Spatiotemporal analysis Spatiotemporal analysis Urban functional areas Urban functional areas

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GB/T 7714 Li, Daichao , Xu, Fangnian , Chen, Zuoqi et al. Fine simulation of PM2.5 combined with NPP-VIIRS night light remote sensing and mobile monitoring data [J]. | SCIENCE OF THE TOTAL ENVIRONMENT , 2024 , 914 .
MLA Li, Daichao et al. "Fine simulation of PM2.5 combined with NPP-VIIRS night light remote sensing and mobile monitoring data" . | SCIENCE OF THE TOTAL ENVIRONMENT 914 (2024) .
APA Li, Daichao , Xu, Fangnian , Chen, Zuoqi , Xie, Xiaowei , Fan, Kunkun , Zeng, Zhan . Fine simulation of PM2.5 combined with NPP-VIIRS night light remote sensing and mobile monitoring data . | SCIENCE OF THE TOTAL ENVIRONMENT , 2024 , 914 .
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Integrating NTL Intensity and Building Volume to Improve the Built-Up Areas' Extraction from SDGSAT-1 GLI Data SCIE
期刊论文 | 2024 , 16 (13) | REMOTE SENSING
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Urban built-up areas are the main space carrier of population and urban activities. It is of great significance to accurately identify urban built-up area for monitoring urbanization dynamics and their impact on Sustainable Development Goals. Using only nighttime light (NTL) remote sensing data will lead to omission phenomena in urban built-up area extraction, especially for SDGSAT-1 glimmer imager (GLI) data with high spatial resolution. Therefore, this study proposed a novel nighttime Lights integrate Building Volume (LitBV) index by integrating NTL intensity information from SDGSAT-1 GLI data and building volume information from Digital Surface Model (DSM) data to extract built-up areas more accurately. The results indicated that the LitBV index achieved remarkable results in the extraction of built-up areas, with the overall accuracy of 81.25%. The accuracy of the built-up area extraction based on the LitBV index is better than the results based on only NTL data and only building volume. Moreover, experiments at different spatial resolutions (10 m, 100 m, and 500 m) and different types of NTL data (SDGSAT-1 GLI data, Luojia-1 data, and NASA's Black Marble data) showed that the LitBV index can significantly improve the extraction accuracy of built-up areas. The LitBV index has a good application ability and prospect for extracting built-up areas with high-resolution SDGSAT-1 GLI data.

Keyword :

building volume building volume built-up area built-up area nighttime light remote sensing nighttime light remote sensing SDGSAT-1 SDGSAT-1 sustainable development goals sustainable development goals

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GB/T 7714 Liu, Shaoyang , Wang, Congxiao , Wu, Bin et al. Integrating NTL Intensity and Building Volume to Improve the Built-Up Areas' Extraction from SDGSAT-1 GLI Data [J]. | REMOTE SENSING , 2024 , 16 (13) .
MLA Liu, Shaoyang et al. "Integrating NTL Intensity and Building Volume to Improve the Built-Up Areas' Extraction from SDGSAT-1 GLI Data" . | REMOTE SENSING 16 . 13 (2024) .
APA Liu, Shaoyang , Wang, Congxiao , Wu, Bin , Chen, Zuoqi , Zhang, Jiarui , Huang, Yan et al. Integrating NTL Intensity and Building Volume to Improve the Built-Up Areas' Extraction from SDGSAT-1 GLI Data . | REMOTE SENSING , 2024 , 16 (13) .
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