Journal of Geography and Cartography最新文献_第4页

Noise mapping technology of high-speed railway based on GIS 基于GIS的高速铁路噪声制图技术

Journal of Geography and Cartography Pub Date : 2022-05-16 DOI: 10.24294/jgc.v5i2.1669

Yanliang Li, Lanhua Liu, Zhiqiang Li

{"title":"Noise mapping technology of high-speed railway based on GIS","authors":"Yanliang Li, Lanhua Liu, Zhiqiang Li","doi":"10.24294/jgc.v5i2.1669","DOIUrl":"https://doi.org/10.24294/jgc.v5i2.1669","url":null,"abstract":"In order to promote the application of noise map in high-speed railway noise management, the high-speed railway noise map drawing technology based on the combination of noise prediction model and geographic information system (GIS) is studied. Firstly, according to the distribution characteristics of noise sources and line structure characteristics of high-speed railway, the prediction model of multi equivalent sound sources and the calculation method of sound barrier insertion loss of high-speed railway are optimized; secondly, a three-dimensional geographic information model of a high-speed railway is built in GIS software, and the railway noise prediction technology based on the model is developed again; then, the noise of discrete nodes is calculated, and the continuous noise distribution map is drawn by spatial interpolation. The research results show that the comparison error between the noise map of a high-speed railway drawn by this technology and the measured results is less than 1 dB (A), which verifies the accuracy and practicality of the high-speed railway noise map, and can be used as a reference for the railway noise management department to formulate noise control countermeasures.","PeriodicalId":363659,"journal":{"name":"Journal of Geography and Cartography","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-05-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127193599","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Research on three-dimensional spectrum mapping driven by propagation model 基于传播模型驱动的三维频谱映射研究

Journal of Geography and Cartography Pub Date : 2022-05-07 DOI: 10.24294/jgc.v5i2.1668

Qiuming Zhu, Xiaofu Du, Qihui Wu, Jie Wang, Yi Zhao, Kai Mao, Weizhi Zhong

引用次数: 0

Hazards of riverbed processes in Russian rivers: Evaluation criteria, mapping and regional analysis 俄罗斯河流河床过程的危害:评价标准、制图和区域分析

Journal of Geography and Cartography Pub Date : 2022-02-19 DOI: 10.24294/jgc.v5i1.1485

R. Chalov, A. Chernov, N. Mikhailova

引用次数: 0

Remote sensing analysis of land use/cover change 土地利用/覆被变化遥感分析

Journal of Geography and Cartography Pub Date : 2022-01-28 DOI: 10.24294/jgc.v5i1.1414

Quanke Ning, Shicheng Xie, Chen Zhong, Dan Yu, Xiaoman Tai

{"title":"Remote sensing analysis of land use/cover change","authors":"Quanke Ning, Shicheng Xie, Chen Zhong, Dan Yu, Xiaoman Tai","doi":"10.24294/jgc.v5i1.1414","DOIUrl":"https://doi.org/10.24294/jgc.v5i1.1414","url":null,"abstract":"Based on Landsat–7ETM + images of 2007 and 2012 and Landsat–8 images of 2018, this study took Fuyang City, Anhui Province (Yingzhou District, Yingdong District, Yingquan District) as the research object, and made a quantitative analysis of land use/cover change in Fuyang City from 2007 to 2018 with the Environment for Visualizing Images (ENVI) software. According to the data of land use types in three phases, the article analyzes the development trend of various land use types and the main reasons for the changes of land use, which provides a certain basis for the urban planning and environmental construction of Fuyang City. The results show that with the rapid economic development and continuous improvement of the urbanization level in Fuyang City during 11 years, the area of various land types in the study area has changed greatly. The area of construction land area changed by 448.27 km2, with an increase of 543.57%; the area of arable land changed by 597.52 km2, with a decrease of 34.74%; the area of bare land changed by 26.00 km2, with a decrease of 80.68%. The changes were closely related to the rapid economic and social development in the study area. Under the influence of environmental protection policies and environmental awareness, the area of forest land changed by 85.00 km2, with an increase of 97.58%; the water area changed by 84.35 km2, with an increase of 201.39%.","PeriodicalId":363659,"journal":{"name":"Journal of Geography and Cartography","volume":"43 8 Pt 2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-01-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125671683","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Evaluation methods of regional bank slope stability based on geographic information systems and integrated information model 基于地理信息系统和综合信息模型的区域岸坡稳定性评价方法

Journal of Geography and Cartography Pub Date : 2022-01-26 DOI: 10.24294/jgc.v5i1.1411

Guo Yu, M. Xie, Y. Li

引用次数: 0

Mapping of township agricultural land use based on Sentinel-2A images 基于Sentinel-2A影像的乡镇农业用地制图

Journal of Geography and Cartography Pub Date : 2022-01-25 DOI: 10.24294/jgc.v5i1.1444

Y. Jiang, Zhongyou Liu, Xiuchun Dong, Guoye Ren, Zongnan Li

{"title":"Mapping of township agricultural land use based on Sentinel-2A images","authors":"Y. Jiang, Zhongyou Liu, Xiuchun Dong, Guoye Ren, Zongnan Li","doi":"10.24294/jgc.v5i1.1444","DOIUrl":"https://doi.org/10.24294/jgc.v5i1.1444","url":null,"abstract":"Objective: to achieve accurately and rapidly the mapping of agricultural land use and crop distribution at the township scale. Methods: this study, based on specific methods, such as, time-series remote sensing index threshold classification and maximum likelihood, classifies each land use type and extracts crop spatial information, under the guidance of Sentinel-2A remote sensing images, to carry out agricultural land use mapping at township scale. And the mapping concerned will be verified by comparing with an agricultural spatial information map of a 0.5 m resolution, which is based on WorldVieW-2 fused images. Results: (1) the area accuracy of grain and oil crop land, vegetable land, agricultural facilities land and garden land is fairly good, with 92.93%, 98.98%, 95.71% and 95.14% respectively, and within 8% variation from actual area; (2) the spatial information of plot boundary, farmland road network, and canal network produced by OSM road data and historical high-resolution images was overlayed with the classification results of Sentinel-2A multi-spectral image for mapping, which can improve the accuracy of plot boundary information of classification results for the image with 10 m resolution. Conclusions: the use of multi-source information fusion method, agricultural land use and crop distribution space big data produced by Sentinel-2A optical image, can effectively improve the accuracy and timeliness of land use mapping at the township scale, to provide technical reference for the application of remote sensing big data to carry out agricultural landscape analysis at the township scale, optimization and adjustment of agricultural structure, etc.","PeriodicalId":363659,"journal":{"name":"Journal of Geography and Cartography","volume":"232 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-01-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132149175","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Dynamic reconstruction method of unmanned aerial vehicle aerial remote sensing image based on compressed sensing 基于压缩感知的无人机航空遥感图像动态重建方法

Journal of Geography and Cartography Pub Date : 2021-12-05 DOI: 10.24294/jgc.v5i1.1413

Guangdi Ma, Weichen Yang

{"title":"Dynamic reconstruction method of unmanned aerial vehicle aerial remote sensing image based on compressed sensing","authors":"Guangdi Ma, Weichen Yang","doi":"10.24294/jgc.v5i1.1413","DOIUrl":"https://doi.org/10.24294/jgc.v5i1.1413","url":null,"abstract":"Aiming at the current problems of poor dynamic reconstruction of UAV aerial remote sensing images and low image clarity, the dynamic reconstruction method of UAV aerial remote sensing images based on compression perception is proposed. Construct a quality reduction model for UAV aerial remote sensing images, obtain image feature information, and further noise reduction preprocessing of UAV aerial remote sensing images to better improve the resolution, spectral and multi-temporal trends of UAV aerial remote sensing images, and effectively solve the problems of resource waste such as large amount of sampled data, long sampling time and large amount of data transmission and storage. Maximize the UAV aerial remote sensing images sampling rate, reduce the complexity of dynamic reconstruction of UAV aerial remote sensing images, and effectively obtain the research requirements of high-quality image reconstruction. The experimental results show that the proposed dynamic reconstruction method of UAV aerial remote sensing images based on compressed sensing is correct and effective, which is better than the current mainstream methods.","PeriodicalId":363659,"journal":{"name":"Journal of Geography and Cartography","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123193482","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Estimation of soil erosion in loess plateau based on geographic information system 基于地理信息系统的黄土高原土壤侵蚀估算

Journal of Geography and Cartography Pub Date : 2021-11-11 DOI: 10.24294/jgc.v5i1.1410

Xing-hai Dang, Yajie Sun

引用次数: 0

Integrating optical and microwave satellite observations for high res-olution soil moisture estimate and applications in CONUS drought analyses 基于光学和微波卫星观测的高分辨率土壤水分估算及其在CONUS干旱分析中的应用

Journal of Geography and Cartography Pub Date : 2021-09-30 DOI: 10.24294/jgc.v4i1.1313

Donglian Sun, Yu Li, X. Zhan, Chaowei Yang, Ruixin Yang

{"title":"Integrating optical and microwave satellite observations for high res-olution soil moisture estimate and applications in CONUS drought analyses","authors":"Donglian Sun, Yu Li, X. Zhan, Chaowei Yang, Ruixin Yang","doi":"10.24294/jgc.v4i1.1313","DOIUrl":"https://doi.org/10.24294/jgc.v4i1.1313","url":null,"abstract":"In this study, optical and microwave satellite observations are integrated to estimate soil moisture at the same spatial resolution as the optical sensors (5km here) and applied for drought analysis in the continental United States. A new refined model is proposed to include auxiliary data like soil texture, topography, surface types, accumulated precipitation, in addition to Normalized Difference Vegetation Index (NDVI) and Land Surface Temperature (LST) used in the traditional universal triangle method. It is found the new proposed soil moisture model using accumulated precipitation demonstrated close agreements with the U.S. Drought Monitor (USDM) spatial patterns. Currently, the USDM is providing a weekly map. Recently, “flash” drought concept appears. To obtain drought map on daily basis, LST is derived from microwave observations and downscaled to the same resolution as the thermal infrared LST product and used to fill the gaps due to clouds in optical LST data. With the integrated daily LST available under nearly all weather conditions, daily soil moisture can be estimated at relatively higher spatial resolution than those traditionally derived from passive microwave sensors, thus drought maps based on soil moisture anomalies can be obtained on daily basis and made the flash drought analysis and monitoring become possible.","PeriodicalId":363659,"journal":{"name":"Journal of Geography and Cartography","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133882834","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Castells’s “Network Society Theory” to Human Geography —Analysis and Comparison Based on Chinese and Foreign Quotations 卡斯特的“网络社会理论”对人文地理学的影响——基于中外引文的分析与比较

Journal of Geography and Cartography Pub Date : 2021-09-30 DOI: 10.24294/jgc.v3i1.1306

Jia Tang, F. Zhen, Xia Wang

{"title":"Castells’s “Network Society Theory” to Human Geography —Analysis and Comparison Based on Chinese and Foreign Quotations","authors":"Jia Tang, F. Zhen, Xia Wang","doi":"10.24294/jgc.v3i1.1306","DOIUrl":"https://doi.org/10.24294/jgc.v3i1.1306","url":null,"abstract":"Based on 898 English documents and 363 Chinese documents citing the Rising of Network Society, it studied that the knowledge contribution of citation content analysis and citation context analysis methods, and the knowledge contribution of Chinese and foreign quotations to human geography. The study found that “mobile space” is the most quoted theoretical view in domestic and foreign literature, and the proportion of domestic research is significantly higher than foreign research; the focus of domestic and foreign research focuses on the external spatial form and its transformation, while foreign research pays more attention on the internal spatial dynamics of network society and three types of knowledge contributions, reflecting the influence of “network social theory” on human geography. Among them, critical references reveal the shortcomings of “network social theory” point out the abstraction of “spatial duality” the importance of local space, and the limitations of research data, methods, and time background, which provides new enlightenment for the future application and innovation of “network social theory” in the field of human geography.","PeriodicalId":363659,"journal":{"name":"Journal of Geography and Cartography","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114420091","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0