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Auflistung nach Autor:in "Van, Pham Thanh"

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  • Konferenzbeitrag
    Building environmental information system using open source program in VinhPhuc province
    (Proceedings of the 27th Conference on Environmental Informatics - Informatics for Environmental Protection, Sustainable Development and Risk Management, 2013) Son, Hoang Trung; Nghia, Nguyen Le; Van, Pham Thanh; Manh, Vu Van
    Nowadays, monitoring, backing up and managing environmental data in developed countries have become simpler than ever before. However, due to financial pressure, licensed server software and professional training are two main difficulties in Vietnam. Unlike the commercial softwares, the open-source operating systems and softwares are free but require users to understand programming languages. OpenSUSE is an open source operating system that can run the command and support the familiar windows interface and can be considered confidential and features equivalent to the Windows operating system, and compatible with most server programs such as mySQL, postgres, as well as web GIS application. The previous research on web-GIS, the open source program, shows that its application has low efficiency. Therefore, this article presents the result of building environmental information system of Vinh Phuc Province by using kvwmap on openSUSE operating system. The openSUSE operating system proves to be efficient at supporting managers to manage their local environmental data.
  • Konferenzbeitrag
    Greenhouse Gas inventory for Nghi Son Refinery and Petrochemical Complex Project
    (EnviroInfo Dessau 2012, Part 1: Core Application Areas, 2012) Manh, Vu Van; Dung, Pham Tien; Van, Pham Thanh
    To be known as one of the fastest developing countries on over the World, Viet Nam always identify focal points for its development, together with building National focal projects. Nghi Son Refinery and Petrochemical Complex Project (NSRP), the second Refinery in Viet Nam, is one of these focal projects. This project and other support buildings were designed following the standards which are stricter than National and International standards. During the construction and operation of the project, greenhouse gases such as CO2, N2O, HFCs, PFCs, CH4 will be released to the air. The purpose of this article to calculate the volume of released greenhouse gases of this project in two periods: construction and operation. The authors also got result in building a greenhouse gas inventory database for which can be applied for other similar projects.
  • Konferenzbeitrag
    Study on the distribution of Francois’s Langur (Trachypithecus francoisi) in Northern of Vietnam under climate change scenario
    (EnviroInfo Dessau 2012, Part 1: Core Application Areas, 2012) Manh, Vu Van; Hoang, Thach Mai; Mai, Le Thi Tuyet; Van, Pham Thanh
    Environmental niche modeling has been demonstrating to be a useful tool in conservation planning and be used widely in recent years. Therefore, many models have been developed for different purposes as well as different species so far. This paper presents an application of two of them (i.e. BIOCLIM and DOMAIN models) to study the distribution of Francoi’s langur in Northeastern Vietnam. Surface climate data and distribution data from the previous surveys were used as model input. The model results represented potential distribution areas of Trachypithecus francoisi in current climatic condition and predictive areas in some future climatic conditions according to IPCC climate change scenario. The results also pointed out that the distribution of Francoi’s langur might be moving to the North and the West under climate change influence. The authors also implemented a comparison whether BIOCLIM or DOMAIN model is more suitable for modeling the distribution of this specific species. This study is a continuing effort to apply environmental niche modeling for primate species. The results are meaningful in supporting scientists and managers to organize field study planning in order to conserve this species.
  • Konferenzbeitrag
    Using environmental niche model to study the distribution of Tonkin snub-nosed monkey (Rhinopithecus avunculus) in the Nordeastern Vietnam under some climate change scenarios
    (Integration of Environmental Information in Europe, 2010) Manh, Vu Van; Hoang, Thach Mai; Van, Pham Thanh
    Environmental niche modeling is a very effective tool for discovery species distribution with only limited observed data. It is used to generate a potential distribution of species in environmental space, which can helps the managers to define the distribution area, make decision for field study and conservation. In this paper, we made effort to apply environmental niche modeling for Tonkin snub-nosed monkey (Rhinopithecus avunculus) - an endemic primate animals of Vietnam. We used the BIOCLIM model which is embeded in DIVA-GIS. The research is implemented in the Northeastern Vietnam, which is considered habitat of Rhinopithecus avunculus. The result was displayed in potential distribution maps by DIVA-GIS. We have generated three distribution maps with two climate conditions (i.e. current climate and future climate with climate change scenario). According to the output of model, the potential distribution of Tonkin snub-nosed is mostly covered the Northeastern of Vietnam , classified into 6 levels. The suitable area is narrow (36,806 km2) and will smaller under the climate change scenario (decrease to about 29,000 km2). The model also shows that, the distribution area of Tonkin snub-nosed monkey is moving to the North in the future climate condition.
  • Konferenzbeitrag
    Using Mike 21 ST model to assess the sand mining project in Lo river
    (Proceedings of the 27th Conference on Environmental Informatics - Informatics for Environmental Protection, Sustainable Development and Risk Management, 2013) Linh, Doan Tuan; Long, Trinh Hoang; Van, Pham Thanh; Manh, Vu Van
    With the aim of assessing the impact of sand mining project environmental Lo River, subjects used the method of sediment transport modeling in rivers, using Sand Transport module in the hydrodynamic model Mike 21 for a particular project. The result was to determine the feasibility of a sand mining project on the Lo river. The subject has shown that the effects of sand mining project on the flow rate and changes in river bed surface and it is negligible. The method can be applied in order to calculate in other mining projects.
  • Konferenzbeitrag
    Using open sources program and online applications to support environmental monitoring
    (EnviroInfo Dessau 2012, Part 1: Core Application Areas, 2012) Ha, Pham Thi; Chinh, Dinh Duy; Linh, Doan Tuan; Yen, Lai Quang; Hung, Dao Duy; Mai, Le Thi Tuyet; Van, Pham Thanh; Manh, Vu Van
    Field survey is an important step in monitoring environmental quality. Until now, there are many difficulties in field study leading to low efficiency due to inadequate equipments. Two of them can be named: - Coordinates and photos of each surveyed point have not been synchronized professionally. - After being synchronized, pictures and surveyed routes need to be shown in public map (e.g. Google Map), open source software (e.g. QGIS) and software that use cloud computing (e.g. Google Earth) to be followed and used for future surveys. In order to solve these two problems, the authors have conducted survey and used GpicSync software to synchronize coordinates and pictures basing on time variable (i.e. the time data was recorded on GPS and the time photos were taken). The study has been implemented in Vinh Phuc province which is located in Northern Vietnam. As a result, synchronizing coordinators and photos becomes faster and simpler. On the other hand, the results of synchronization could be shown on Google Earth, Google Maps, as well as other open source software. In addition, with other environmental information, synchronization also helped with environmental monitoring, investigation, survey, and samples collection.