搜索结果: 1-15 共查到“知识库 地理学 GIS”相关记录56条 . 查询时间(0.625 秒)
虚实融合技术是视频增强三维虚拟地理场景的关键环节之一，对提高真实沉浸式视觉体验具有重要作用。现有基于视频投影的虚实融合方法，在三维场景动态更新时，通常需要对用户视角下新场景内所有渲染对象进行遍历，来筛选出摄像头范围内需融合的对象，导致融合过程耗时长、效率不高。本文提出一种顾及拓扑关系的多路视频与三维GIS场景融合的对象快速确定方法。首先对三维场景视锥体内视频对象集渲染对象动态建立拓扑网络模型；然后...
DIDACTIC AND METHODOLOGICAL CHALLENGES IN NEW MEDIA BASED TEACHING AND LEARNING FOR GIS
Didactical Design Learning Theories
2015/3/12
New Media teaching and learning is on everyone’s lips at the moment. It must be analyzed whether e-learning and multimedia with
its possibilities can make a lasting contribution to the university te...
GIS approach in assessing the status of neritic water quality and petroleum hydrocarbons in Bay of Bengal (From Chennai to Nagapattinam, Tamilnadu), India
GIS coastal water quality petroleum hydrocarbons wind direction wetland
2014/11/26
Neritic coastal water samples, collected onboard in Ocean Research Vessel (Sagar Purvi,
NIOT) at a depth of 15m from the shore in August, 2010 at 15 coastal stations (opposite to
the river mouths,...
Monitoring of bank line erosion of River Ganga, Malda District, and West Bengal: Using RS and GIS compiled with statistical techniques
River Migration banks failure paradigm shift mitigation of disasters
2014/11/26
The creation of regional imbalance, inequalities and differentiation in India, starts with the
physiographic element and ends with economic, and socio-cultural parameters of the
inhabitants/popula...
Geo-Hydrological study of Gandheshwari Sub-watershed using Remote Sensing and GIS Techniques
Geo-hydrology hydro-geomorphology remote sensing GIS and GPS
2014/11/26
The present study was conducted on Gandheshwari sub-watershed situated in Bankura
district of West Bengal. The remote sensing and GIS techniques have been proved to be very
efficient in...
Evaluation of hydrogeomorphological landforms and lineaments using GIS and Remote Sensing techniques in Bargur – Mathur subwatersheds, Ponnaiyar River basin, India
Hydrogeomorphology Lineament Remote Sensing GIS Bargur – Mathur
2014/11/26
The Landsat ETM satellite data is used to demarcate hydrogeomorphological landforms and
lineaments to evaluate groundwater potential of the study area. The Bargur - Mathur
subwatersheds of Ponnaiy...
GIS based lineament Delineation using geophysical resistivity data, Karur district, Tamil Nadu, India
Lineament Geophysical resistivity DEM GIS
2014/11/26
The paper shows that geophysical resistivity values Digital Elevation Model (DEM) for
different depths, can indicate the location of depth persistence lineaments. The depth
persistence lineaments ...
Online web GIS- based services for spatial data and sharing of leptospirosis epidemiology information; Development of pilot project in Mahasarakham province Thailand
Web GIS-based service spatial data sharing leptospirosis epidemiology
2014/11/26
Leptospirosis epidemiology Information sharing is important for the shared preparation,
response, and recovery stages of sickness control. Leptospirosis epidemiology phenomena
are powerfully assoc...
GIS based mapping and environmental impact of Wetlands changes in a Riverine district of Bangladesh
Bangladesh Wetlands Changes Management Environmen
2014/11/26
This research is concerned with the GIS based mapping and change of areal extent of
wetlands within two different periods and to identify the causes of change and impact
assessment of wetland chan...
Landuse / Landcover change study of Jharkhali Island Sundarbans, West Bengal using Remote Sensing and GIS
Sundarban Landuse change Population pressure Deforestation
2014/11/26
Jharkhali, an island in the Sundarbans, is situated between two mighty rivers, Matla (on the
west) and Bidya (on the east) covering an area of about 161 sq.km (2009). The landuse /
landcover maps ...
Prioritisation of miniwatersheds based on Morphometric analysis using GIS
Morphometric analysis ArcGIS Watershed delineation Watershed atlas
2014/11/26
In the present study, the eighteen miniwatersheds of Kadam watershed of Middle Godavari
sub basin (G-5) have been prioritized using GIS based on morphometric analysis. The highest
Bifurcation rati...
Morphometric analysis of Maun watershed in Tehri-Garhwal district of Uttarakhand using GIS
Drainage network GIS Landuse Morphometric analysis
2014/11/26
Proper planning and management of available natural resources is necessary for progress and
economic development in agriculture which are main stay of people leaving in the hilly
region. The morph...
Land use and cover change assessment using Remote Sensing and GIS: Dohuk City, Kurdistan, Iraq (1998-2011)
Land Use/Cover GIS Remote Sensing Urban Growth Landsat imagery Dohuk
2014/11/25
Land cover undergoes continuous changes around the world, especially in highly populated
areas. This phenomenon can be attributed to human activities including population growth
and the need of mo...
Identification of urban sprawl dynamics in a rapid growing city using GIS
Urban Sprawl Shannon’s Entropy urban growth GIS and RS Sprawl dynamics
2014/11/24
Urban development is a phenomenon in developing countries. The measurement and
monitoring of urban sprawl is crucial for government officials and planners who urgently
need updated information and...
Morphometric analysis using Geographic Information System (GIS) for sustainable development of hydropower projects in the lower Satluj river catchment in Himachal Pradesh, India
Morphometric classification Drainage density Stream orders Hydropower
2014/11/24
Remote Sensing and Geographic Information System techniques are effectively being used in
recent times as an important tool in determining the quantitative description of morphometry
of a basin. T...