• Heavy metals contamination in groundwater resource in Dak Nong province, Viet NamHeavy metals contamination in groundwater resource in Dak Nong province, Viet Nam

    Abstract. This study aims to understand the concentrations of selected heavy metals including arsenic, iron, manganese, cadmium and mercury in groundwater used for domestic purposes in Dak Nong Province of Viet Nam. A total number of 572 groundwater samples including 61 duplicates were collected during October, 2018 – April, 2019. The collected ...

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  • Evaporation measurement from free water surfaceEvaporation measurement from free water surface

    Abstract. This paper aims to quantify the amount of water surface evaporation with special regard to the EWM evaporation pan and to relate the direct measurements to the Penman and other empirical equations. Based on the available 10-minute interval data on the EWM pan evaporation and the data on precipitation for the same intervals, the net wat...

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  • Sea surface temperature trends and the influence of ENSO on the southwest sea of Vietnam using remote sensing data and GISSea surface temperature trends and the influence of ENSO on the southwest sea of Vietnam using remote sensing data and GIS

    Abstract In this article, the sea surface temperature trends and the influence of ENSO on the southwest sea of Vietnam were analyzed using the continuous satellite-acquired data sequence of SST in the period of 2002– 2018. GIS and average statistical methods were applied to calculate the average monthly and seasonal sea surface temperature, the...

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  • Impacts of pollution discharges from Dinh Vu industrial zone on water quality in the Hai Phong coastal areaImpacts of pollution discharges from Dinh Vu industrial zone on water quality in the Hai Phong coastal area

    Abstract The hydrodynamic and water quality models (the Delft3D model) were established based on the measured data and the estimated pollution discharges from Dinh Vu industrial zones to Nam Trieu estuary. With seven separate simulation scenarios, the results show that in case of increased wastewater with the control of pollution discharge (wat...

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  • Characteristics of fish fauna in marine ecosystems in the World Biosphere Reserve of Cu Lao Cham - Hoi AnCharacteristics of fish fauna in marine ecosystems in the World Biosphere Reserve of Cu Lao Cham - Hoi An

    Abstract Assessments of fish fauna in the World Biosphere Reserve of Cu Lao Cham - Hoi An were based on analyses of data of visual censuses and samples collected at 5 sites of nipa palm, 9 sites of seagrass beds and 15 sites of coral reefs in June 2016, 200 samples from 25 fishing gears in wet and dry seasons (November 2015 and June 2016), and ...

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  • Initial evaluation of nitrogen uptake of Thalassia hemprichii in Nha Trang, Khanh HoaInitial evaluation of nitrogen uptake of Thalassia hemprichii in Nha Trang, Khanh Hoa

    Abstract The uptake rate of nitrate by leaves and roots was simultaneously investigated in the seagrass T. hemprichii collected from Lo river, Nha Trang. The principle of nutrient uptake of seagrass was based on the approaches of the Michaelis-Menten model. The laboratory experiments of nitrate uptake were done the ranges of ambient nitrate con...

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  • Research on contradictions and priorities in integrated planning of the coastal space in Hai Hau - Nghia Hung districts, Nam Dinh provinceResearch on contradictions and priorities in integrated planning of the coastal space in Hai Hau - Nghia Hung districts, Nam Dinh province

    Abstract Hai Hau - Nghia Hung are two coastal districts in the Southeast of Nam Dinh province with total area of 35,652.29 km2. Located in the middle between the Southern provinces of the Red river delta and the North Central provinces, Hai Hau and Nghia Hung are about 100 km from Hanoi along National Route 1A and 80 km from Hai Phong, in an ar...

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  • 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...

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  • 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...

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  • 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: 435 | Lượt tải: 0