scholarly journals CALCULATION OF PARAMETER VALUES TO CHARACTERIZE THE CONSEQUENCES OF WORK ON THE DREDGING AND SUSPENDED MATTER DAMPING: ASSESSMENT BY MEANS OF THE SM-MODEL

2020 ◽  
Vol 48 (2) ◽  
pp. 107-134
Author(s):  
K. A. Podgorny ◽  
A. V. Leonov
Keyword(s):  
Suspended Matter ◽  
Sea Water ◽  
Water Environment ◽  
Calculated Data ◽  
Water Area ◽  
Port Area ◽  
Suspended Matter Concentration ◽  
Kaliningrad Region ◽  
Sea Area ◽  
Parameter Values

The developed SM-model, describing the suspended matter concentrations in water environment, was used to assess the consequences of the works on dredging and dumping ground during the reconstruction and modernization of the water body area in the Pionersky Port (Kaliningrad region). The complex of recreated works includes 11 stages of the dredging works during which the various types of bottom sediments are extracted, some part of these sediments are transported outside the port water area and discharged into the marine underwater dump, while other their part are used for hydraulic engineering works in the port area. At the dredging and dumping the sediments, additional zones of water turbidity are formed (with a suspended matter concentration > 50 mg/L), its deposition causes the formation of a layer of sediments on the bottom. For each work stages, the technological data on the currents in the port water area are used for mathematical modeling and calculations of the amounts of various types of sediments extracted from the bottom, their redistribution over the sea area, the concentration of suspended matter in sea water, and the indicators (areas and volumes) of the emerging turbidity zones water due as a result of the construction works. Calculated data may be used to compile a report “Assessment of influence on the water environment state” (or AIWES) in the frame of these works.

Effect of Western the Fourth Phase Project on Hydrodynamic Condition for Shijiu Port in Rizhao

2012 ◽  
Vol 204-208 ◽  
pp. 2369-2373
Author(s):  
Jia Rui Li ◽  
Die Shuang Yu
Keyword(s):  
Channel Flow ◽  
Water Area ◽  
Main Channel ◽  
Hydrodynamic Condition ◽  
Port Area ◽  
Before And After ◽  
Project Construction ◽  
Sheltering Effect ◽  
Sea Area ◽  
Flow Velocities

A hydrodynamic model of Shijiu port and its adjacent sea area was built to discuss the effect of western the fourth phase project on the flow condition for Shijiu port area. The results show that with the sheltering effect of breakwaters, flow velocity values are small inside the breakwaters. The water area near the project is affected more by the project construction. The flow velocities there are faster after the project construction than before it. In the main channel, flow velocities outside the breakwaters almost have no difference before and after the project. The project construction doesn’t have significant effect on it.

SUSPENDED MATTER CONCENTRATION ALONGSIDE THE NORTHERN COASTLINE OF KALININGRAD REGION (SOUTH-EASTERN PART OF THE BALTIC SEA)

2017 ◽  
Author(s):  
Ekaterina Bubnova ◽  
Ekaterina Bubnova ◽  
Victor Krechik ◽  
Victor Krechik ◽  
Vadim Sivkov ◽  
...  
Keyword(s):  
Baltic Sea ◽  
Suspended Matter ◽  
Seasonal Distribution ◽  
World Heritage Site ◽  
The Baltic Sea ◽  
South Eastern ◽  
Suspended Matter Concentration ◽  
Kaliningrad Region ◽  
The Baltic ◽  
Matter Concentration

South-Eastern part of the Baltic Sea undergoes strong man-caused impact due to high level of shore usage. Suspended matter is an important carrying agent for pollutants. The Kaliningrad region has both the abrasion shore (Sambian peninsula) and the massive accumulative body (Curonian Spit), which is World Heritage site. The interannual and seasonal distribution of suspended matter concentration along the northern shore of Kaliningrad region against the hydrological conditions were studied. The research was made on five-year (2011-2015) monthly (April - October) data-array, consisting of surface and bottom water samplings. Two types of interannual and seasonal distribution of suspended matter concentration (SMC) revealed: Sambian type is defined by vertical gradient of SMC with descending of concentration from surface to bottom, while Curonian type – by horizontal gradient of latter.

SUSPENDED MATTER CONCENTRATION ALONGSIDE THE NORTHERN COASTLINE OF KALININGRAD REGION (SOUTH-EASTERN PART OF THE BALTIC SEA)

2017 ◽  
Author(s):  
Ekaterina Bubnova ◽  
Ekaterina Bubnova ◽  
Victor Krechik ◽  
Victor Krechik ◽  
Vadim Sivkov ◽  
...  
Keyword(s):  
Baltic Sea ◽  
Suspended Matter ◽  
Seasonal Distribution ◽  
World Heritage Site ◽  
The Baltic Sea ◽  
South Eastern ◽  
Suspended Matter Concentration ◽  
Kaliningrad Region ◽  
The Baltic ◽  
Matter Concentration

South-Eastern part of the Baltic Sea undergoes strong man-caused impact due to high level of shore usage. Suspended matter is an important carrying agent for pollutants. The Kaliningrad region has both the abrasion shore (Sambian peninsula) and the massive accumulative body (Curonian Spit), which is World Heritage site. The interannual and seasonal distribution of suspended matter concentration along the northern shore of Kaliningrad region against the hydrological conditions were studied. The research was made on five-year (2011-2015) monthly (April - October) data-array, consisting of surface and bottom water samplings. Two types of interannual and seasonal distribution of suspended matter concentration (SMC) revealed: Sambian type is defined by vertical gradient of SMC with descending of concentration from surface to bottom, while Curonian type – by horizontal gradient of latter.

On the Nutrition and Metabolism of Zooplankton IX. Studies Relating to the Nutrition of Over-Wintering Calanus

1974 ◽  
Vol 54 (2) ◽  
pp. 319-331 ◽  
Author(s):  
E. D. S. Corner ◽  
R. N. Head ◽  
C. C. Kilvington ◽  
S. M. Marshall
Keyword(s):  
Suspended Matter ◽  
Sea Water ◽  
Plant Cells ◽  
Particulate Material ◽  
Nitrogen And Phosphorus ◽  
Particulate Nitrogen ◽  
Clyde Sea ◽  
Sea Area ◽  
Calanus Helgolandicus

Studies were made relating to the problem of how Calanus feeds during winter in the Clyde sea-area. Different diets were assessed in terms of sustaining the levels of body nitrogen and phosphorus in Calanus helgolandicus (Claus) over a period of several days. The test diets, all equivalent to the same level of particulate nitrogen in sea water, were: (1) suspended matter collected from the Clyde sea-area in winter; (2) particulate material produced in a foam-tower by bubbling sea water enriched with soluble extracts of plant cells; (3) living nauplii of the barnacle Elminius modestus Darwin; (4) dead nauplii of this species.It was found that neither body nitrogen nor body phosphorus was sustained by diet 1; that body nitrogen, but not body phosphorus, was sustained by diet 2; that both were sustained by either of diets 3 and 4.With living Elminius nauplii as the food, each Calanus captured the equivalent of 25 % of its body nitrogen and 47·3 % of its body phosphorus daily: with dead nauplii as the food the corresponding values were 34·4 and 44·5%. These rations are much higher than those found in an earlier study of Calanus grazing on a spring diatom increase in the Clyde (Butler, Corner & Marshall, 1970) and demonstrate that animal diets are readily captured.In general, the results indicate that Calanus could survive the winter in the Clyde sea-area by feeding carnivorously.

scholarly journals ANALISIS KUALITAS PERAIRAN LAUT TERHADAP AKTIVITAS DI LINGKUNGAN PELABUHAN WAINGAPU-ALOR SUMBA TIMUR

2017 ◽  
Vol 23 (1) ◽  
pp. 225 ◽  
Author(s):  
Rikson Siburian ◽  
Lisnawaty Simatupang ◽  
Minsyahril Bukit
Keyword(s):  
Water Quality ◽  
Sea Water ◽  
Water Quality Monitoring ◽  
Water Area ◽  
Working Environment ◽  
Quality Of Water ◽  
Water Port ◽  
Port Area ◽  
The Impact

AbstrakPelabuhan Kalabahi-Alor di lahan milik PT (persero) pelabuhan Indonesia III Cabang Kupang, dengan luas daerah daratan pelabuhan 71.131 m2 dan lingkungan kerja perairan 1.880 Ha. Sedangkan luas lingkungan kepentingan adalah 1.813 Ha. Dengan ukuran 4 x 5 meter untuk dermaga I dan 115 x 10 meter untuk dermaga II. Wilayah monitoring termasuk dalam wilayah Kelurahan Teluk Mutiara, Kecamatan Teluk Mutiara,   Kabupaten Alor Provinsi NTT. Kegiatan ini dilakukan untuk analisis monitoring kualitas perairan laut di lingkunganpelabuhan umum Kalabahi-Alor.Kualitas air meliputi kualitas kimia-fisika perairan laut disekitar pelabuhan. Sampel air laut diambil dari 3 (tiga lokasi) yang berbeda. Hasil analisis dan pemantauan menunjukan bahwa kualitas air laut di kawasan pelabuhan merupakan dampak dari:kegiatan perkapalan (pengoperasian kapal dan kecelakaan kapal), limbah  yang berasal dari limbah kapal (bongkar-muat barang), aktivitas pelabuhan lainnya (seperti kegiatan kuliner),saluran drainase yang bermuara kelaut, bocoran dan tumpahan pembongkaran muatan yang bercampur minyak dan oli dari sisa ballast dan air sisa pencucian, serta limbah pemukiman yang masuk secara langsung di pinggiran pelabuhan.Data kualitas (sifat kimia-fisika) air laut wilayah perairan  pelabuhan Umum Kalabahi  yang dilaksanakan secara analisis insitu maupun laboratorium menunjukkan bahwa seluruh parameter yang diukur masih memenuhi baku mutu yang diizinkan oleh peraturan pemerintah.Kata Kunci: analisis, kualitas air laut, pelabuhan Waingapu AbstractKalabahi-Alor port on land owned by PT (Persero), the Indonesian port of Kupang Branch III, with an area of 71 131 m2 area of port land and waters 1,880 Ha working environment. While the broad sphere of interest is 1,813 Ha. With a size of 4 x 5 meters to the pier I and 115 x 10 meters to dock II. Monitoring region including the Gulf Pearl Village area, Teluk Mutiara, Alor Regency NTT Province. This activity is carried out for the analysis of sea water quality monitoring in the public ports Kalabahi-Alor. The quality of water include chemical-physical quality of the marine waters around the port. Sea water samples taken from 3 (three locations) are different. The results of analysis and monitoring showed that the seawater quality in the port area is the impact of: the activities of shipping (operation of ships and shipwrecks), waste from waste ship (loading and unloading), the activity of other ports (such as culinary activities), drainage channels which empties into the sea, leaks and spills that mixes the unloading of oil and oil from the remaining residual ballast water and washing, as well as residential waste that goes directly on the outskirts of the port. Data quality (chemical-physical) sea water port water area Kalabahi General conducted an in situ and laboratory analysis showed that all the measured parameters still meet quality standards permitted by government regulations.Keyword : analysiss, sea water quality, Waingapu port

scholarly journals Grounds for Scientific/methodic Approaches to Determination of Norms of Permissible Impacts to Offshore Sea Water Areas

2017 ◽  
Author(s):  
Keyword(s):  
Suspended Matter ◽  
Water Exchange ◽  
Sea Water ◽  
Water Area ◽  
Balance Model ◽  
Domestic Waste ◽  
Diffuse Discharge ◽  
Adverse Impacts ◽  
Assimilation Capacity

Overview and analysis of contemporary scientific/methodic approaches to determination of norms of permissible adverse impacts in terms of chemical and suspended matter input to offshore sea water areas are presented. The pollutants concentration balance model correlated to the volume of sea water area under investigation with consideration of limiting conditions that provide maintaining of the marine environment normal state has been considered. Balance elements of the pollutants supplied to offshore sea water areas with industrial and domestic waste waters and with diffuse discharge, as well as pollutants input with water exchange of the calculated site with the neighboring sea range have been determined. An ecological approach to the problem of permissible impact norms based on the notions of maximal permissible ecological load, maximal permissible adverse impacts and the sea assimilation capacity has been analyzed. Grounds for the methodology of the norms determination in terms of chemical and suspended matter for certain parts of offshore sea water areas and bays with different water exchange characteristics have been provided.

DEVELOPMENT OF INTEGRATED MONITORING NETWORK FOR MEASURING SALINITY OF SEA WATER

2018 ◽  
pp. 18-26
Author(s):  
Sima Ajdar qizi Askerova
Keyword(s):  
Surface Waters ◽  
Sea Water ◽  
Water Environment ◽  
Monitoring Network ◽  
Monitoring Networks ◽  
The Caspian Sea ◽  
Integrated Monitoring ◽  
Ecological Control ◽  
Different Depths ◽  
Optimal Construction

Monitoring of sea water condition is one of major requirements for carrying out the reliable ecological control of water environment. Monitoring networks contain such elements as sea buoys, beacons, etc. and are designated for measuringvarious hydrophysical parameters, including salinity of sea water. Development of specialized network and a separate buoy system for measuring thesea water salinity at different depths makes it possible to determine major regularities of processes of pollution and self-recovery of the sea waters. The article describes the scientific and methodological basics for development of this specialized network and questions of its optimal construction. It is well-known that at a depth of 30-45 m of the Caspian Sea salinity decreases and then at a depth of 45-60 m salinity is fully recovered. The mentioned changes of salinity at the relatively upper layer of sea waters is of special interest for studying the effect of ocean-going processes on the climate forming in the Caspian area. In terms of informativeness of measurements of surface waters salinity, the most informative is a layer ata 30-60 m depth, where inversion and recovery of salinity take place. It is shown that in most informative subrange of measurements, i. e. at a depth of 30-60 m optimization of regime of measurements complex should be carried out in order to increase the effectiveness of held researches. It is shown that at a depth of 35-50 m choice of the optimum regime of measurements makes it possible to obtain the maximum amount of information.

MEASURES FOR ENVIRONMENT CONSERVATION IN ENCLOSED COASTAL SEAS

2017 ◽  
Author(s):  
Keizo Negi ◽  
Keizo Negi ◽  
Takuya Ishikawa ◽  
Takuya Ishikawa ◽  
Kenichiro Iba ◽  
...  
Keyword(s):  
Water Pollution ◽  
Water Quality ◽  
Water Mass ◽  
Sea Water ◽  
Red Tide ◽  
Water Environment ◽  
Quality Standard ◽  
Tokyo Bay ◽  
View Point ◽  
High Concentration

Japan experienced serious water pollution during the period of high economic growth in 1960s. It was also the period that we had such damages to human health, fishery and living conditions due to red tide as much of chemicals, organic materials and the like flowing into the seas along the growing population and industries in the coastal areas. Notable in those days was the issues of environment conservation in the enclosed coastal seas where pollutants were prone to accumulate inside due to low level of water circulation, resulting in the issues including red tide and oxygen-deficient water mass. In responding to these issues, we implemented countermeasures like effluent control with the Water Pollution Control Law and improvement/expansion of sewage facilities. In the extensive enclosed coastal seas of Tokyo Bay, Ise Bay and the Seto Inland Sea, the three areas of high concentration of population, we implemented water quality total reduction in seven terms from 1979, reducing the total quantities of pollutant load of COD, TN and TP. Sea water quality hence has been on an improvement trend as a whole along the steady reduction of pollutants from the land. We however recognize that there are differences in improvement by sea area such as red tide and oxygen-deficient water mass continue to occur in some areas. Meanwhile, it has been pointed out that bio-diversity and bio-productivity should be secured through conservation/creation of tidal flats and seaweed beds in the view point of “Bountiful Sea” To work at these challenges, through the studies depending on the circumstances of the water environment in the enclosed coastal seas, we composed “The Policy of Desirable State of 8th TPLCS” in 2015. We have also added the sediment DO into the water quality standard related to the life-environmental items in view of the preservation of aquatic creatures in the enclosed water areas. Important from now on, along the Policy, is to proceed with necessary measures to improve water quality with good considerations of differences by area in the view point of “Beautiful and bountiful Sea”.

RELEASE OF NUTRIENTS FROM BOTTOM SEDIMENTS IN OSAKA BAY, JAPAN IN 2015

2017 ◽  
Author(s):  
Yukio Komai ◽  
Yukio Komai ◽  
Mana Sakata ◽  
Mana Sakata ◽  
Masaki Nakajima ◽  
...  
Keyword(s):  
Bottom Sediment ◽  
Bottom Sediments ◽  
Sea Water ◽  
Industrial Effluents ◽  
Ammonium Nitrogen ◽  
Water Release ◽  
Osaka Bay ◽  
The Core ◽  
Similar Range ◽  
Sea Area

Osaka Bay is the most polluted enclosed sea area, in which is located the eastern part of the Seto Inland Sea, Japan. There are four kinds of sources on loadings of nutrients to Osaka Bay, which are land including rivers and industrial effluents beside coast, ocean sea water, release from bottom sediment to sea water, and wet and dry deposition from air. The pollutant loadings inflowing from the land to Osaka Bay have been cut by various policies since 1970’s. The concentrations of nutrients in the inner part of Osaka Bay have showed an obvious decreasing tendency. However, the water quality in offshore sea has not satisfied the environmental standard on nutrients. We investigated the amount of nutrients released from bottom sediments. The core samples were taken at two stations in the inner part of Osaka Bay once a month from February to November, 2015. The core incubation experiment in laboratory was conducted for 24 hours according to Tada et.al. The concentrations of ammonium nitrogen (NH4-N) and phosphate phosphorus (PO4-P) were measured by an automatic analyzer. The flux showed similar range with the values investigated in 1986. The results suggested that the flux of nutrients from bottom sediments in the inner part of Osaka Bay has not decreased during summer season at least since 1985. Therefore, the contribution of release from bottom sediment on the nutrients budget would relatively become larger in inner part of Osaka Bay.

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