نتایج جستجو برای: gis and rs software

تعداد نتایج: 16875899  

Journal: :Geospatial health 2006
Laura Rinaldi Vincenzo Musella Annibale Biggeri Giuseppe Cringoli

Over the past 10-15 years, significant advances have been made in the development and application of geographical information systems (GIS) and remote sensing (RS). In veterinary sciences, particularly in veterinary parasitology, GIS and RS offer powerful means for disease mapping, ecological analysis and epidemiological surveillance and have become indispensable tools for processing, analysing...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه پیام نور - دانشگاه پیام نور استان تهران - دانشکده علوم اجتماعی و اقتصادی 1389

abstract nowadays, the science of decision making has been paid to more attention due to the complexity of the problems of suppliers selection. as known, one of the efficient tools in economic and human resources development is the extension of communication networks in developing countries. so, the proper selection of suppliers of tc equipments is of concern very much. in this study, a ...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه سیستان و بلوچستان - دانشکده مهندسی 1392

flow in natural river bends is a complex and turbulent phenomenon which affects the scour and sedimentations and causes an irregular bed topography on the bed. for the reason, the flow hydralics and the parameters which affect the flow to be studied and understand. in this study the effect of bed and wall roughness using the software fluent discussed in a sharp 90-degree flume bend with 40.3cm ...

Journal: :ISPRS Int. J. Geo-Information 2015
Alexander Fekete Katerina Tzavella Iuliana Armas Jane Binner Matthias Garschagen Carlo Giupponi Vahid Mojtahed Marcello Pettita Stefan Schneiderbauer Damien Serre

Disaster risk information is spatial in nature and Geographic Information Systems (GIS) and Remote Sensing (RS) play an important key role by the services they provide to OPEN ACCESS ISPRS Int. J. Geo-Inf. 2015, 4 1849 society. In this context, to risk management and governance, in general, and to civil protection, specifically (termed differently in many countries, and includes, for instance: ...

2014
Zeqiang Chen Hui Lin Min Chen Deer Liu Ying Bao Yulin Ding

Sharing and integrating Remote Sensing (RS) and Geographic Information System/Science (GIS) models are critical for developing practical application systems. Facilitating model sharing and model integration is a problem for model publishers and model users, respectively. To address this problem, a framework based on a Web service for sharing and integrating RS and GIS models is proposed in this...

2014
Qiuwen Zhang Yan Zhang Xiaohong Yang Bin Su

In recent years, earthquakes have frequently occurred all over the world, which caused huge casualties and economic losses. It is very necessary and urgent to obtain the seismic intensity map timely so as to master the distribution of the disaster and provide supports for quick earthquake relief. Compared with traditional methods of drawing seismic intensity map, which require many investigatio...

2014
Ni Huang Li Wang Yiqiang Guo Pengyu Hao Zheng Niu

To examine the method for estimating the spatial patterns of soil respiration (Rs) in agricultural ecosystems using remote sensing and geographical information system (GIS), Rs rates were measured at 53 sites during the peak growing season of maize in three counties in North China. Through Pearson's correlation analysis, leaf area index (LAI), canopy chlorophyll content, aboveground biomass, so...

ژورنال: :جغرافیایی سرزمین 2009
مرضیه موغلی پرویز کردوانی

این تحقیق در حوضه آبخیز رودخانه وربند لارستان واقع در استان فارس در سطحی معادل 5/925 کیلومتر مربع و با استفاده از تصاویر ماهواره ای irs و سنجندهp6 (سال 2006 ) انجام گردیده است بطوریکه با استفاده از نرم افزار erdas8.7 تصحیحات مکانی تصاویر مربوطه با استفاده از 15 نقطه و با معادله آفاین با rmse=0.42 و تصحیحات رادیومتری از طریق الگوریتم مستطیل های معادل انجام گردید و با استفاده از فاکتور شاخص مطلوب...

2005
Peijun Du Yunhao Chen

In general only a small part of spatial data in SDI change because of different factors, so rapid and effective updating methods are very vital. With the improvement of spatial resolution of satellite remote sensing (RS) imagery, it is possible to update spatial data infrastructure efficiently by satellite RS images. But the RS data volume is vast, so high processing capacity is required. It is...

2005
Guy Hendrickx

During the past decades the publication of papers interest related to the use of geographical information systems (GIS) and/or remote sensing (RS) and of particular interest to veterinary parasitology veterinary followed an exponential trend. The use of GIS and RS is now generally accepted by the scientific community as a major tool contributing to the understanding of epidemiological processes...

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