• Remote sensing of atmosphere and underlying surface using radiation of global navigation satellite systemsRemote sensing of atmosphere and underlying surface using radiation of global navigation satellite systems

    ABSTRACT: This paper is devoted to solving the problem of atmosphere diagnosis using radiation of the global navigation satellites. New methods for diagnosing the meteorological situation, the refractive state of the troposphere and underlying surface based on the behavior of navigation signals are proposed. The model of the mapping function tha...

    pdf7 trang | Chia sẻ: thanhle95 | Ngày: 10/07/2021 | Lượt xem: 545 | Lượt tải: 0

  • The flattened seabed characters at the nearshore islands of VietnamThe flattened seabed characters at the nearshore islands of Vietnam

    Abstract Flattened seabed characters at the nearshore islands, namely Bach Long Vi, Con Co, Ly Son, Phu Quy, Hon Khoai and Tho Chu, were analysed based on depth contour map with 1 m vertical resolution and the application of ArcMap 10.4 software. Consequently, a series of seabed cross sections was automatically created by using the software, wh...

    pdf10 trang | Chia sẻ: thanhle95 | Ngày: 10/07/2021 | Lượt xem: 472 | Lượt tải: 0

  • Water quality of Ba Lat estuaryWater quality of Ba Lat estuary

    Abstract Ba Lat estuary is the large mouth of the Red river; every year, the Ba Lat estuary receives million cubic meters of water before the water is dissolved in the sea. Therefore, polluted materials in the water from the continent are also transported to the sea through the estuary. However, the volume of the water pouring into the sea vari...

    pdf9 trang | Chia sẻ: thanhle95 | Ngày: 10/07/2021 | Lượt xem: 501 | Lượt tải: 0

  • Assessment of possibility of dumping site selection for dredged materials from shipping channels in Hai Phong coastal watersAssessment of possibility of dumping site selection for dredged materials from shipping channels in Hai Phong coastal waters

    Abstract In order to keep essential depths in shipping channels to and from Hai Phong ports, regular dredging activities are maintained with about 3.6 million tons of sediments per year. Due to almost all the sediments of dredged material in the channels are composed of mud and silt, they are not easy to be used for land filling or other purpos...

    pdf13 trang | Chia sẻ: thanhle95 | Ngày: 10/07/2021 | Lượt xem: 541 | Lượt tải: 0

  • Studying and forecasting the evolution of the Day river coastal zone up to the year of 2070Studying and forecasting the evolution of the Day river coastal zone up to the year of 2070

    Abstract The Day river coastal zone is the place of plentiful and eventful economical activities and the natural habitat of diverse endemic species that should be preserved and developed. According to the updated geological, remote-sensing and oceanographic data sources, this study figures out the actual state, evolutional history and forecasts...

    pdf11 trang | Chia sẻ: thanhle95 | Ngày: 10/07/2021 | Lượt xem: 421 | Lượt tải: 0

  • Coastal zones of the Red river delta and Yangtze river deltaCoastal zones of the Red river delta and Yangtze river delta

    Abstract The Red river delta coastal area (Vietnam) and Yangtze river delta coastal area (China) not only play an important role in developmental process of each country but also show typical characteristics of hydrodynamics and sediment dynamics of estuaries and delta coastal areas. Based on previous studied results of hydro-sediment dynamics ...

    pdf13 trang | Chia sẻ: thanhle95 | Ngày: 10/07/2021 | Lượt xem: 535 | Lượt tải: 0

  • Some environmental management aspects in loading - unloading and storage of toxic chemicals at seaports in Hai Phong - Quang NinhSome environmental management aspects in loading - unloading and storage of toxic chemicals at seaports in Hai Phong - Quang Ninh

    Abstract Toxic chemicals strictly controlled by the International Maritime Organization (IMO) are dangerous goods which can potentially cause environmental degradation in maritime transport. Within the seaports of Hai Phong - Quang Ninh, the volume of toxic chemicals accounted for about 1% of container throughput (over 56 million tons per year,...

    pdf11 trang | Chia sẻ: thanhle95 | Ngày: 10/07/2021 | Lượt xem: 660 | Lượt tải: 0

  • Evaluation of the changes of the shoreline in Cua Tung in Quang Tri province before and after the construction of groin on the south riverbank of Ben Hai riverEvaluation of the changes of the shoreline in Cua Tung in Quang Tri province before and after the construction of groin on the south riverbank of Ben Hai river

    ABSTRACT The process of erosion-sedimentation of Cua Tung, Quang Tri province has been mentioned in previous studies, but there have been no studies that apply satellite images to evaluate the changes of shoreline before and after the construction of groin along the south of Ben Hai river. This paper aims to evaluate the changes and rate of ero...

    pdf9 trang | Chia sẻ: thanhle95 | Ngày: 10/07/2021 | Lượt xem: 543 | Lượt tải: 0

  • Các đặc trưng bão và nước dâng do bão ở các vùng bờ nước taCác đặc trưng bão và nước dâng do bão ở các vùng bờ nước ta

    TÓM TẮT: Bão và nước dâng do bão gây ra là các hiện tượng thời tiết nguy hiểm, thiệt hại do chúng gây ra là rất lớn. Vì vậy, vấn đề nghiên cứu bão và nước dâng do bão hiện nay đang rất được quan tâm. Bài báo này trình bày một số kết quả nghiên cứu các đặc trưng bão và nước dâng do bão của các cơn bão đổ bộ trực tiếp vào các vùng bờ nước ta trong...

    pdf9 trang | Chia sẻ: thanhle95 | Ngày: 10/07/2021 | Lượt xem: 651 | Lượt tải: 0

  • Potentials of organic waste conversion in a green campus conceptPotentials of organic waste conversion in a green campus concept

    Abstract – Development of waste-to-energy plant is regarded as one of a solution to reduce fossil energy dependency and switch to another alternative energy sources, thus needs to be implemented immediately. Research on the potential of organic waste by taking case studies at UMY green campus program can be an illustration that in the future UM...

    pdf6 trang | Chia sẻ: thanhle95 | Ngày: 10/07/2021 | Lượt xem: 571 | Lượt tải: 0