Application of geo-informatics

The paper "Research the application of terrestrial laser scanning technology for mining management (A case study at Khe Cham mine site, Quang Ninh province)" presents the application of Terrestrial Laser Scanning technology and takes a case study at a mining pit of the Khe Cham coal mine for building digital spatial data of the mining tunnel system, transportation, ventilation, calculation of excavation volume and mining output over time in mining pit of Khe Cham coal mine, cycle 0 is 4070.19 m3 , cycle 1 is 13668.

9p tukhauquantuong1011 22-04-2024 5 2   Download

The objective of paper "Application for GIS technology to comparison of ordinary least squares and geographically weighted regression model in the assessment of the market residence land in Thuy Van ward, Hue city, Vietnam" is to compare the application of GIS technology to compare ordinary least squares (OLS) and Geographically Weighted Regression (GWR) regression models in determining market land prices at Thuy Van ward.

9p tukhauquantuong1011 22-04-2024 6 2   Download

The research "Application of random forest algorithm and google colab for land cover classification" is to provide the approach RF with Google Colab environment for classifying land cover in Quang Binh province, Vietnam using sentinel - 2 image in August 2021. The results have indicated the ability of this research direction with an overall accuracy above 80 %.

9p tukhauquantuong1011 22-04-2024 6 2   Download

The purpose of the study "Monitoring surface water bodies changes from sentinel-2A imagery with modified normalized difference water index: Application in Dalat, Lam Dong, Viet Nam" is to identify surface water body changes using Sentinel-2 MSI (Multi-Spectral Instrument) data, one of the latest types of remote sensing satellite data. The results of the research show that by using Sentinel-2 MSI imagery, MNDWI (Modified Normalized Water Index) is the appropriate parameter to detect surface water areas in the studied area, with an overall accuracy > 0.92 and Kappa coefficient > 0.84.

10p tukhauquantuong1011 22-04-2024 4 2   Download

The study "Application of AHP model to establish a landslide probability zoning map in A Luoi district, Thua Thien-Hue province, Vietnam" applied the AHP (Analytical Hierarchy Process) model with the GIS tool on the input database of Sentinel-2B Image, DEM and geographic background data to evaluate the influence of 5 factors: slope, elevation, aspect, land cover and vegetation to generate a landslide hazard zoning map, scale 1:50,000.

14p tukhauquantuong1011 22-04-2024 3 2   Download

The research "Development of water level measuring sensor prototype equipment for analysis and alerting flood risk situations in the form of a 3D simulator on a web GIS application" show that it is possible to develop a prototype sensor device capable of measuring water levels and sending real-time data to a database server, enabling analysis, notification and visualization in the form 3D simulation that can be displayed in Web GIS Application.

7p tukhauquantuong1011 22-04-2024 3 2   Download

The study "Application of remote sensing and GIS to establish surface temperature map of Phu Tho province" used Landsat 8 images to calculate the surface temperature of Phu Tho province. The data used in the study are Landsat 8 images combined with geographical data of the area. Calculation results of Phu Tho province’s surface temperature range from 26.79-46.32°C. Places with high temperatures are concentrated in the city. Viet Tri is a place with high population density and rapid urbanization. The temperature in the high mountains is relatively cool.

6p tukhauquantuong1011 22-04-2024 4 2   Download

This paper presents the results of applying geoinformatics technology in early detection of forest fires in Vietnam. Two methods were used to detect forest fires, including (1) Using ground monitoring equipment: applying algorithms to detect smoke and fire from the series of "forest fire" recorded by IP Camera, characteristics of smoke, such as color, movement and expandable properties used in fire detection; accuracy of algorithm for fire detection with video frames is 97% and with image frames from digital cameras is 100%; Ground monitoring equipment can detect 84.

10p vilarry 01-04-2024 5 1   Download

Geoinformatics is application of information technology for study and management of earth resources. The salt affected soils of Gohana were mapped and evaluated using visual interpretation of IRS-P6 satellite false colour composite (FCC) image with ground survey and laboratory analysis. A total of 72 soil samples across the study area were sampled based on the quality of groundwater used for irrigation at four depths (0-15, 15-30, 30-45 and 45-60 cm). Long-term irrigation with salt affected water results in soil quality decline.

24p angicungduoc8 07-11-2020 19 1   Download

Geoinformatics is the science and technology of gathering, analyzing, interpreting, distributing, and using geospatial information. It encompasses a broad range of disciplines brought together to create a detailed but understandable picture of the physical world and our place in it. The Handbook of Research on Geoinformatics is the first reference work to map this exciting interdisciplinary field, discussing the complete range of contemporary research topics such as computer modeling, geometry, geoprocessing, and geographic information systems.

518p ktct_1669 08-05-2012 115 18   Download