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

IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing

Qiusheng Wu¹  Jianping Wu²  Yangguang Li²  Yuchen Hong²  Shaoyang Liu²  Zhichao Song²  Bin Wu²  Bailang Yu² 

[1] Department of Geography, University of Tennessee, Knoxville, TN, USA;Key Laboratory of Geographic Information Science (Ministry of Education) and the School of Geographic Sciences, East China Normal University, Shanghai, China;

关键词: Electric power consumption (EPC);    gross domestic product (GDP);    National Oceanic and Atmospheric Administration-20 Satellite (NOAA-20);    National Polar Orbit Partnership-visible infrared imaging radiometer suite (NPP-VIIRS);    urban area extraction;   

DOI  :  10.1109/JSTARS.2022.3149028

来源: DOAJ

【 摘 要 】

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. The NOAA-20 VIIRS’ day/night band (DNB) enables a new generation of nighttime imaging applications. However, few studies investigated the ability of NOAA-20 DNB nighttime light data in modeling socioeconomic indicators [such as the gross domestic product (GDP) and electric power consumption (EPC)] and extracting urban areas. In this article, we first used a simple linear regression model to investigate the potential of NOAA-20 nighttime light data for estimating GDP and EPC at multiple scales; we then extracted urban areas from NOAA-20 nighttime light data by using support vector machines. Taking mainland China as the study area, we found that the correlation coefficient of determination R² between NOAA-20 nighttime light data and GDP/EPC at both provincial and prefectural scales are higher than 0.7. By comparing the results with NPP-VIIRS nighttime light data, similar R² values were obtained at both two scales, indicating that NOAA-20 nighttime light data and NPP-VIIRS data are comparable in estimating socioeconomic indicators. Moreover, NOAA-20 also shows a similar detection ability with NPP-VIIRS in extracting urban areas. This article demonstrated that NOAA-20 and NPP-VIIRS are comparable in economic statistics estimation and urban area extraction. The NOAA-20 nighttime light data can be a useful data source for enlightening more applications in the fields of socioeconomic and urban studies.

【 授权许可】

Unknown