Informacja

Drogi użytkowniku, aplikacja do prawidłowego działania wymaga obsługi JavaScript. Proszę włącz obsługę JavaScript w Twojej przeglądarce.

Wyszukujesz frazę "open sea" wg kryterium: Temat


Wyświetlanie 1-10 z 10
Tytuł:
Occurrence of digeneans in open sea fishes off the South Shetland Islands and South Georgia, and a list of fish digeneans in the Antarctic
Autorzy:
Zdzitowiecki, Krzysztof
Powiązania:
https://bibliotekanauki.pl/articles/2052849.pdf
Data publikacji:
1991
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
Antarctic
digeneans
fish infection
open sea
Źródło:
Polish Polar Research; 1991, 12, 1; 55-72
0138-0338
2081-8262
Pojawia się w:
Polish Polar Research
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Trajektoria ruchu statku w procesie bezpiecznego prowadzenia statku po akwenie otwartym
Ship movement trajectory in safe ship navigation in the open sea area
Autorzy:
Pietrzykowski, Z.
Mielniczu, S.
Hatłas, P.
Powiązania:
https://bibliotekanauki.pl/articles/250046.pdf
Data publikacji:
2015
Wydawca:
Instytut Naukowo-Wydawniczy TTS
Tematy:
statek
akwen otwarty
trajektoria
kolizja
ship
open sea area
trajectory
collision
Opis:
Jednym z podstawowych zadań nawigacji jest zapewnienie bezpiecznej żeglugi poprzez unikanie niebezpieczeństw w trakcie realizacji podróży morskiej. Dotyczy to m.in. zaplanowania i wykonania manewru antykolizyjnego: wyznaczenia bezpiecznej trajektorii ruchu statku oraz sterowania po niej. Stąd, przy planowaniu trajektorii ruchu należy uwzględnić aktualną sytuację nawigacyjną, kryteria bezpieczeństwa, charakterystyki manewrowe statku oraz panujące warunki hydrologiczno-meteorologiczne. Ze względu na dynamikę procesów ruchu, zmieniające się warunki oraz ograniczenia czasowe dla wypracowania decyzji i jej realizacji, jest to zadanie złożone. W artykule zdefiniowano wymienione zadanie oraz przedstawiono model procesu wyznaczania trajektorii ruchu statku w sytuacji kolizyjnej z uwzględnieniem modelu środowiska. Opracowany na tej podstawie system może stanowić jeden z modułów rozwijanych obecnie nawigacyjnych systemów wspomagania decyzji na statku morskim.
One of the basic navigational tasks is to provide safe navigation by avoiding dangerous situations during the ship voyage. This includes, inter alia, planning and execution of anticollision manoeuvres: a safe ship trajectory determination and ship movement control. Therefore, when planning the ship trajectory, the navigator should take into account several elements: cur-rent navigational situation, safety criteria, ship's manoeuvrability and hydro-meteorological conditions. This task is complex due to the dynamics of traffic processes, changing conditions, time-limits for reaching a decision and its implementation. The authors formulate the mentioned task and present the process model for ship trajectory determination in collision situations, taking into account the ship environment model. The system developed on this basis can be incorporated as a module of navigation decision support systems for sea going ships.
Źródło:
TTS Technika Transportu Szynowego; 2015, 12; 1214-1219, CD
1232-3829
2543-5728
Pojawia się w:
TTS Technika Transportu Szynowego
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Experimental study of the formation of steep waves and breakers
Autorzy:
Massel, S.R.
Tegowski, J.
Chomka, M.
Wichorowski, M.
Dabrowski, J.
Stansberg, C.T.
Moe, V.
Powiązania:
https://bibliotekanauki.pl/articles/47742.pdf
Data publikacji:
2001
Wydawca:
Polska Akademia Nauk. Instytut Oceanologii PAN
Tematy:
sea surface
surface wave
open sea
surface gravity wave
wave breaking
wave formation
steep wave
Opis:
Breaking waves (whitecaps) are one of the most important and least understood processes associated with the evolution of the surface gravity wave field in the open sea. This process is the principal means by which energy and momentum are transferred away from a developing sea. However, an estimation of the frequency of breaking waves or the fraction of sea surface covered by whitecaps and the amount of dissipated energy induced by breaking is very difficult to carry out under real sea conditions. A controlled experiment, funded by the European Commission under the Improving Human Potential Access Infrastructures programme, was carried out in the Ocean Basin Laboratory at MARINTEK, Trondheim (Norway). Simulation of random waves of the prescribed spectra by wave makers provided a very realistic pattern of the sea surface. The number of breaking waves was estimated by photographing the sea surface and recording the noise caused by the breaking waves. The experimental data will serve for calibration of the theoretical models of the sea surface fraction related to the whitecaps.
Źródło:
Oceanologia; 2001, 43, 3; 353-363
0078-3234
Pojawia się w:
Oceanologia
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Baltic Sea Open Waters Extreme Events of Last 30 Years Caused by Climate-Weather Hazards
Autorzy:
Bogalecka, M.
Jakusik, E.
Kołowrocki, K.
Powiązania:
https://bibliotekanauki.pl/articles/2068797.pdf
Data publikacji:
2017
Wydawca:
Uniwersytet Morski w Gdyni. Polskie Towarzystwo Bezpieczeństwa i Niezawodności
Tematy:
Baltic Sea open waters
sea accident
climate-weather states
extreme states
weather hazard
Opis:
The paper deals with the sea accidents that have occurred at the Baltic Sea open waters for last three decades. For each accident, the climate-weather change process state is fixed to examine the weather hazard influence on this accident. Moreover, the Baltic Sea open waters accidents caused by the extreme weather hazard states are described.
Źródło:
Journal of Polish Safety and Reliability Association; 2017, 8, 4; 135--140
2084-5316
Pojawia się w:
Journal of Polish Safety and Reliability Association
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Ship domain in open sea areas and restricted waters: an analysis of influence of the available maneuvering area
Autorzy:
Wielgosz, M.
Powiązania:
https://bibliotekanauki.pl/articles/117213.pdf
Data publikacji:
2017
Wydawca:
Uniwersytet Morski w Gdyni. Wydział Nawigacyjny
Tematy:
ship domain
open sea areas
restricted waters
available maneuvering area
Electronic Chart Display and Information System (ECDIS)
navigational safety assessment
safety at sea
simulation method
Opis:
A ship domain is nowadays an important navigational safety assessment criterion. Its shape and size depend on many factors. The available maneuvering area seems to be one of the most important of them. This article examines the influence of the available manoeuvring area on the shape and size of ship domain in the open sea and restricted waters. The research was conducted using a simulation method. Expert navigators participated in simulations using the ECDIS system. The domains of ship passages in open sea area and restricted area have been compared.
Źródło:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation; 2017, 11, 1; 99-104
2083-6473
2083-6481
Pojawia się w:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Safety of transport and disposal for explosive ordnance in ports, roadsteads and at open sea
Autorzy:
Cichocki, A.
Chmieliński, M.
Powiązania:
https://bibliotekanauki.pl/articles/116098.pdf
Data publikacji:
2017
Wydawca:
Uniwersytet Morski w Gdyni. Wydział Nawigacyjny
Tematy:
military applications
safety of transport
explosive ordnance
explosive ordnance in ports
explosive ordnance in roadsteads
explosive ordnance at open sea
unexploded ordnance (UXO)
disposal for explosive ordnance
Opis:
In the article principles, pertaining to the safety of transport for explosives and unexploded ordnance of military origin and procedures that guarantee maximal effectiveness of the process of their neutralization, are presented. Since the end of the 2nd World War operations of neutralizing unexploded ordnance (UXO) of that era that still lie in ports, roadsteads and coastal areas are continuously conducted. During that war the Polish coast was one of the major battlegrounds and till now unexploded ordnance are found either on the sea bed or along the coast. Various analyses state that searching the sea and the coastline for unexploded ordnance is a task still to be carried out in the foreseeable future.
Źródło:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation; 2017, 11, 2; 363-370
2083-6473
2083-6481
Pojawia się w:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Improvement of MERIS level 2 products in Baltic Sea coastal areas by applying the Improved Contrast between Ocean and Land processor (ICOL) - data analysis and validation
Autorzy:
Kratzer, S.
Vinterhav, C.
Powiązania:
https://bibliotekanauki.pl/articles/48296.pdf
Data publikacji:
2010
Wydawca:
Polska Akademia Nauk. Instytut Oceanologii PAN
Tematy:
MERIS standard processor
FUB processor
C2E process
Baltic Sea
coastal area
data analysis
validation
spectral reflectance
open sea
remote sensing
water quality
atmosphere
water body
total suspended matter
suspended particulate matter
organic matter
Opis:
In this paper we compare the following MERIS processors against sea-truthing data: the standard MERIS processor (MEGS 7.4.1), the Case 2 Regional processor (C2R) of the German Institute for Coastal Research (GKSS), and the Case 2Water Properties processor developed at the Freie Universit¨at Berlin (FUB). Furthermore, the Improved Contrast between Ocean and Land processor (ICOL), a prototype processor for the correction of adjacency effects from land, was tested on all three processors, and the retrieval of level 2 data was evaluated against sea-truthing data before and after ICOL processing. The results show that by using ICOL the retrieval of spectral reflectance in the open sea was improved for all processors. After ICOL processing, the FUB showed rather small errors in the blue, but underestimated in the red −34% Mean Normalised Bias (MNB) and 37% Root Mean Square (RMS). For MEGS the reflectance in the red was underestimated by about −20% MNB and 23% RMS, whereas the reflectance in the other channels was well predicted, even without any ICOL processing. The C2R underestimated the red with about −27% MNB and 29% RMS and at 412 nm it overestimated the reflectance with about 23% MNB and 29% RMS. At the outer open sea stations ICOL processing did not have a strong effect: the effect of the processor diminishes progressively up to 30 km from land. At the open sea stations the ICOL processor improved chlorophyll retrieval using MEGS from −74% to about 34% MNB, and TSM retrieval from −63% to about 22% MNB. Using FUB in combination with ICOL gave even better results for both chlorophyll (25% MNB and 45% RMS) and TSM (−4% MNB and 36% RMS) in the open Baltic Sea. All three processors predicted TSM rather well, but the standard processor gave the best results (−12% MNB and 17% RMS). The C2R had a very low MNB for TSM (1%), but a rather high RMS (54%). The FUB was intermediate with −16% MNB and 31% RMS. In coastal waters, the spectral diffuse attenuation coefficient Kd(490) was well predicted using FUB or MEGS in combination with ICOL (MNB about 12% for FUB and 0.4% for MEGS). Chlorophyll was rather well predicted in the open Baltic Sea using FUB with ICOL (MNB 25%) and even without ICOL processing (MNB about 15%). ICOL-processed MEGS data also gave rather good retrieval of chlorophyll in the coastal areas (MNB of 19% and RMS of 28%). In the open Baltic Sea chlorophyll retrieval gave a MNB of 34% and RMS of 70%, which may be due to the considerable patchiness caused by cyanobacterial blooms. The results presented here indicate that with the MERIS mission, ESA and co- workers are in the process of solving some of the main issues regarding the remote sensing of coastal waters: spatial resolution; land-water adjacency effects; improved level 2 product retrieval in the Baltic Sea, i.e. the retrieval of spectral reflectance and of the water quality products TSM and chlorophyll.
Źródło:
Oceanologia; 2010, 52, 2; 211-236
0078-3234
Pojawia się w:
Oceanologia
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Wave analysis for two-point measurements in the Polish EEZ of the Baltic Sea
Analiza falowania dla pomiarów dwupunktowych na obszarze polskiej wyłącznej strefy ekonomicznej Morza Bałtyckiego
Autorzy:
Kapiński, J.
Powiązania:
https://bibliotekanauki.pl/articles/111423.pdf
Data publikacji:
2016
Wydawca:
Instytut Morski w Gdańsku
Tematy:
simultaneous two-point wave measurements
waves at open sea
ADCP instruments
Baltic Sea
Polish EEZ
spatial variability of wave field
statistical analysis of sea waves
jednoczesne pomiary ruchu falowego w dwóch punktach
fale na otwartym morzu
przyrządy pomiarowe typu ADCP
Morze Bałtyckie
Polska Wyłączna Strefa Ekonomiczna
przestrzenna zmienność pola falowego
statystyczna analiza fal morskich
Opis:
Results of field measurements of surface gravity waves conducted for two neighbouring points at the Baltic Sea were compared. However, deep-water conditions are met there, noticeable differences for wave heights, periods and directions can be observed. In some cases they increase with the magnitudes of wave parameters, in other ones they remain constant. These two-point measurements indicate that the wave field can be differential even within small aquatic sites of the open sea, which, for instance, can have an effect on offshore structure stability or on a wave energy productivity. The aim of this paper is to point out the importance of this issue.
W pracy porównano wyniki pomiarów terenowych na Morzu Bałtyckim dla grawitacyjnych fal powierzchniowych przeprowadzonych w dwóch sąsiadujących ze sobą punktach. Mimo, że były tam spełnione warunki głębokowodne, zaobserwowano znaczne różnice wysokości, okresów i kierunków fal. W niektórych przypadkach rosły one wraz ze wzrostem wielkości analizowanych parametrów falowych, w innych zaś pozostawały niezmienne. Wykonane dwupunktowe pomiary wskazują na fakt, że pola falowe mogą się zauważalnie różnić nawet na małych obszarach otwartego morza, co na przykład może mieć wpływ na stabilność konstrukcji pełnomorskich lub wydajność generatorów energii falowej. Zwrócenie uwagi na to zagadnienie jest głównym celem niniejszego artykułu.
Źródło:
Biuletyn Instytutu Morskiego w Gdańsku; 2016, 31, 1; 67-72
1230-7424
2450-5536
Pojawia się w:
Biuletyn Instytutu Morskiego w Gdańsku
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
A system for the determination of surface water pCO2 in a highly variable environment, exemplified in the Southern Baltic Sea
Autorzy:
Stokowski, M.
Makuch, P.
Rutkowski, K.
Wichorowski, M.
Kulinski, K.
Powiązania:
https://bibliotekanauki.pl/articles/2078920.pdf
Data publikacji:
2021
Wydawca:
Polska Akademia Nauk. Instytut Oceanologii PAN
Tematy:
surface water
carbon dioxide
coastal zone
environment change
inorganic carbon
open water
Baltic Sea
Opis:
Measurement of pCO2 in highly dynamic coastal zones such as the southern Baltic Sea presents many challenges. In this study, we designed a system to measure pCO2 and then validated it in a series of laboratory and seagoing tests. The fast response time of the system was shown to provide a better resolution of CO2 system gradients. In the open waters of the Baltic Sea, the accuracy of the pCO2 measurements (±1.3 μatm) met the requirements of the ICOS (±2.0 μatm). In the coastal zone, there was less consistency between pCO2, DIC and pH measurements, suggesting the need to redefine the quality assurance and control requirements for the measurement of pCO2 in dynamic regions.
Źródło:
Oceanologia; 2021, 63, 2; 276-282
0078-3234
Pojawia się w:
Oceanologia
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Open-loop scrubbers and restricted waterways: A aase study investigation of travemünde port and increased sulphur emissions immediately after the scrubbers are turned off
Autorzy:
Altarriba, E.
Rahiala, S.
Tanhuanpää, T.
Powiązania:
https://bibliotekanauki.pl/articles/24201471.pdf
Data publikacji:
2023
Wydawca:
Uniwersytet Morski w Gdyni. Wydział Nawigacyjny
Tematy:
sulphur scrubbers
maritime transport and shipping
open-loop scrubbers
Baltic Sea
Port operations
sulphur emissions
local emissions
reducing emissions
Opis:
Open-loop sulphur scrubbers must be switched off, and the fuel must be changed to low-sulphur fuel before entering German inland waters. Immediately after the scrubbers are turned off, warm exhaust gases cause the residue left in the scrubber to vaporise, leading to the increased sulphur content of the exhaust gas. The momentary increase in sulphur emissions immediately after the open-loop scrubbers are turned off has received little attention in research. This paper presents the onboard measurement results of exhaust gases and examines the effects of sulphur compounds released into the air. In this case, the observed sulphur emission peak is problematic due to the geographical location. The ship sails to the river port, passing the coastal town of Travemünde, where the exhaust gases are released. Due to this, the emissions are more harmful when compared to emissions generated in the open seas.
Źródło:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation; 2023, 17, 2; 465--471
2083-6473
2083-6481
Pojawia się w:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-10 z 10

    Ta witryna wykorzystuje pliki cookies do przechowywania informacji na Twoim komputerze. Pliki cookies stosujemy w celu świadczenia usług na najwyższym poziomie, w tym w sposób dostosowany do indywidualnych potrzeb. Korzystanie z witryny bez zmiany ustawień dotyczących cookies oznacza, że będą one zamieszczane w Twoim komputerze. W każdym momencie możesz dokonać zmiany ustawień dotyczących cookies