Results 21 to 30 of about 46,780 (128)

Spatiotemporal analysis of the impact of urban landscape forms on PM2.5 in China from 2001 to 2020

International Journal of Digital Earth, 2023
Urban landscape forms can be effective in reducing increasing PM2.5 concentrations due to urbanization in China, making it crucially important to accurately quantify the spatiotemporal impact of urban landscape forms on PM2.5 variations.
Shoutao Zhu, Jiayi Tang, Xiaolu Zhou, Peng Li, Zelin Liu, Cicheng Zhang, Ziying Zou, Tong Li, Changhui Peng   +8 more
doaj   +1 more source

High-resolution land cover classification: cost-effective approach for extraction of reliable training data from existing land cover datasets

International Journal of Digital Earth, 2023
There has been a significant increase in the availability of global high-resolution land cover (HRLC) datasets due to growing demand and favorable technological advancements. However, this has brought forth the challenge of collecting reference data with
Gorica Bratic, Vasil Yordanov, Maria Antonia Brovelli   +2 more
doaj   +1 more source

A new approach to LST modeling and normalization under clear-sky conditions based on a local optimization strategy

International Journal of Digital Earth, 2022
The normalization of LST relative to environmental parameters is of great importance in various environmental applications. The purpose of this study was to develop a new approach for LST normalization relative to environmental variables.
Majid Kiavarz, Mohammad Karimi Firozjaei, Seyed Kazem Alavipanah, Quazi K. Hassan, Yoann Malbéteau, Si-Bo Duan   +5 more
doaj   +1 more source

Moderate-resolution snow depth product retrieval from passive microwave brightness data over Xinjiang using machine learning approach

International Journal of Digital Earth
Passive microwave (PM) remote sensing have been extensively used for snow depth (SD) estimation. However, current SD products from traditional PM data fail to capture the differentiation in mountainous and complex terrains with coarse resolution ...
Yang Liu, Jinming Yang, Xi Chen, Junqiang Yao, Lanhai Li, Yubao Qiu   +5 more
doaj   +1 more source

Spatial prediction based on Third Law of Geography

Annals of GIS, 2018
Current methods of spatial prediction are based on either the First Law of Geography or the statistical principle or the combination of these two. The Second Law of Geography contributes to the revision of these methods so they are adaptive to local ...
A‐Xing Zhu, Guonian Lu, Jing Liu, Cheng‐Zhi Qin, Chenghu Zhou   +4 more
doaj   +1 more source

A fine-grained evaluation of social vulnerability to COVID-19, healthcare access and built environmental disparities in Tokyo, Japan

International Journal of Digital Earth, 2022
Measuring vulnerability to COVID-19 and healthcare accessibility at the fine-grained level serves as the foundation for spatially explicit health planning and policy making in response to future public health crises.
Siqin Wang, Yukio Sadahiro
doaj   +1 more source

A Novel Map Matching Method Based on Improved Hidden Markov and Conditional Random Fields Model

International Journal of Digital Earth
Aiming at the inherent “labeling bias” problem of Hidden Markov Models (HMMs) in the process of low-frequency sampling rate GPS trajectory map matching, this paper proposes a map matching method that combines HMMs and Conditional Random Field Models ...
Wei Li, Youliang Chen, Shiteng Wang, Hongchong Li, Qin Fan   +4 more
doaj   +1 more source

A high-precision image classification network model based on a voting mechanism

International Journal of Digital Earth, 2022
With the development of satellite remote sensing technology, image classification task, as the basis of remote sensing data interpretation, has received wide attention to improving accuracy and robustness.
Jianghong Zhao, Xin Wang, Xintong Dou, Yingxue Zhao, Zexin Fu, Ming Guo, Ruiju Zhang   +6 more
doaj   +1 more source

Floating in the air: forecasting allergenic pollen concentration for managing urban public health

International Journal of Digital Earth
The presence of airborne allergenic pollen causes a variety of immune reactions and respiratory diseases, threatening human life in severe cases. Climate change is exacerbating the allergenic pollen-induced health risks and adding a significant economic ...
Xiaoyu Zhu, Xuanlong Ma, Zhengyang Zhang, Yuxia Liu, Yunpeng Luo, Kai Yan, Tao Pei, Alfredo Huete   +7 more
doaj   +1 more source

A survey of the Geoinformatics use for census purposes and the INSPIRE maturity within Statistical Institutes of EU and EFTA countries

Annals of GIS, 2019
In 2007, the European Parliament established the Directive 2007/2/EC for the Infrastructure for Spatial Information in the European Community (INSPIRE).
Kalogeropoulos Kleomenis, Stathopoulos Nikolaos, Tsatsaris Andreas, Chalkias Christos   +3 more
doaj   +1 more source