Results 21 to 30 of about 585,804 (279)

Spatio-temporal effect of provincial technological innovation on environmental pollution in China

Frontiers in Public Health, 2022
The relationship between technological innovation (TL) and environmental pollution (EP) and its action mechanisms are complex and controversial aspects of discussion. Using the spatial autocorrelation analysis, standard deviation ellipse analysis, kernel
Chu Wang, Xiaomin Guo, Xiaomin Guo
doaj   +1 more source

Using the standard deviational ellipse to document changes to the spatial dispersion of seasonal tornado activity in the United States [PDF]

npj Climate and Atmospheric Science, 2019
AbstractRecent studies have documented possible ongoing changes to the climatology of tornadoes in the United States. Observed changes include increasing tornado counts in the Southeast and Midwest Regions, decreasing tornado counts in the Great Plains, and increased clustering of tornadoes on fewer days of the year.
Todd W. Moore, Michael P. McGuire
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Standard Deviational Ellipse (SDE) models for malaria surveillance, case study: Sukabumi district-Indonesia, in 2012 [PDF]

Malaria Journal, 2012
Background Sukabumi District has been a malaria endemic area for 8 years. In 2004 an outbreak of malaria occurred, and more than 250 positive malaria cases are reported every year. Malaria surveillance data is still in the form of tabular data [1], therefore it is necessary to find models to support the malaria surveillance, based on spatial mapping ...
Eryando Tris, Susanna Dewi, Pratiwi Dian, Nugraha Fajar   +3 more
openaire   +2 more sources

Analysis of the spatiotemporal expansion and pattern evolution of urban areas in Anhui Province, China, based on nighttime light data

Ecological Indicators, 2023
Based on remote sensing images from National Polar-orbiting Partnership—Visible Infrared Imaging Radiometer Suite–like data and related statistical yearbook data acquired at 5-year intervals from 2000 to 2020, the urbanized areas of cities in Anhui ...
Yazhou Xu, Shuang Hao, Yuhuan Cui, Pengfei Li, Liangliang Sheng, Congcong Liao   +5 more
doaj   +1 more source

A WEB-BASED FRAMEWORK FOR VISUALIZING INDUSTRIAL SPATIOTEMPORAL DISTRIBUTION USING STANDARD DEVIATIONAL ELLIPSE AND SHIFTING ROUTES OF GRAVITY CENTERS [PDF]

The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2017
Abstract. Analysing spatiotemporal distribution patterns and its dynamics of different industries can help us learn the macro-level developing trends of those industries, and in turn provides references for industrial spatial planning. However, the analysis process is challenging task which requires an easy-to-understand information presentation ...
Y. Song, Y. Song, Y. Song, Z. Gui, Z. Gui, Z. Gui, H. Wu, H. Wu, Y. Wei   +8 more
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Research on Spatial and Temporal Evolution Trends and Driving Factors of Green Residences in China Based on Weighted Standard Deviational Ellipse and Panel Tobit Model

Applied Sciences, 2022
The development of green residences is crucial to reducing energy consumption and carbon emissions of the construction industry. However, the study on the spatial distribution characteristics of green residences and its influencing factors has not attracted enough attention in the academic circles.
Ke Guo, Yongbo Yuan
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Spatial-temporal differences and influencing factors of coupling coordination between urban quality and technology innovation in the Guangdong-Hong Kong-Macao Greater Bay Area.

PLoS ONE, 2023
The coordinated development of urban quality and technology innovation is an important element of China's technology innovation development strategy in the new era.
Zhichen Yang, Yuxi Wu, Fangfang Wang, Aichun Chen, Yixuan Wang   +4 more
doaj   +1 more source

Spatiotemporal patterns of evapotranspiration in the Xiangjiang River Basin from 2000 to 2020

Hydrology Research, 2023
Evapotranspiration (ET) is a crucial parameter in the process of the hydrological cycle. It is vital for water resource management in the Xiangjiang River Basin (XRB) within Hunan Province of China to explore the spatial and temporal dynamic ...
Suxun Li, Chang Feng, Liu Yang
doaj   +1 more source

Confidence Analysis of Standard Deviational Ellipse and Its Extension into Higher Dimensional Euclidean Space

PLOS ONE, 2015
Standard deviational ellipse (SDE) has long served as a versatile GIS tool for delineating the geographic distribution of concerned features. This paper firstly summarizes two existing models of calculating SDE, and then proposes a novel approach to constructing the same SDE based on spectral decomposition of the sample covariance, by which the SDE ...
Wang, B, Shi, W, Miao, Z
openaire   +4 more sources

Spatiotemporal Patterns Evolution of Residential Areas and Transportation Facilities Based on Multi-Source Data: A Case Study of Xi’an, China

ISPRS International Journal of Geo-Information, 2023
The spatiotemporal patterns of residential and supporting service facilities are critical to effective urban planning. However, with growing urban sprawl and congestion, the spatial distribution patterns and evolutionary characteristics of these areas ...
Xinyi Lai, Chao Gao
doaj   +1 more source