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Wyświetlanie 1-10 z 10
Tytuł:
PACIFIC SEA LEVELS RISING VERY SLOWLY AND NOT ACCELERATING
Autorzy:
Parker, Albert
Ollier, Clifford
Powiązania:
https://bibliotekanauki.pl/articles/1051047.pdf
Data publikacji:
2019-03-31
Wydawca:
Uniwersytet im. Adama Mickiewicza w Poznaniu
Tematy:
sea level rise
tide gauges
subsidence
Pacific Ocean
Opis:
Over the past decades, detailed surveys of the Pacific Ocean atoll islands show no sign of drowning because of accelerated sea-level rise. Data reveal that no atoll lost land area, 88.6% of islands were either stable or increased in area, and only 11.4% of islands contracted. The Pacific Atolls are not being inundated because the sea level is rising much less than was thought. The average relative rate of rise and acceleration of the 29 long-term-trend (LTT) tide gauges of Japan, Oceania and West Coast of North America, are both negative, −0.02139 mm yr−1 and −0.00007 mm yr−2 respectively. Since the start of the 1900s, the sea levels of the Pacific Ocean have been remarkably stable.
Źródło:
Quaestiones Geographicae; 2019, 38, 1; 179-184
0137-477X
2081-6383
Pojawia się w:
Quaestiones Geographicae
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Consequences of global warming in cryosphere
Autorzy:
Jania, Jacek A.
Powiązania:
https://bibliotekanauki.pl/articles/703326.pdf
Data publikacji:
2008
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
cryosphere
climate warming
sea ice
glacier dynamics
sea level rise
Opis:
Scale of changes of particular components of cryosphere due to global warming is presented. Cryosphere diminishes its spatial extend and the total volume of all kinds of ice is reduced. The Arctic sea ice cover has recently diminished most intensely. It reached its minimal extend (4.28 mln km2) in September 2007. One expects accelerated disintegration of sea ice of the Arctic as a result of coadjuvancy of oceanic and atmospheric factors. In consequence, more intense warming of climate coming from warmer ocean water is predicted in the Arctic basin. Increase of melting of glaciers during the last three decades results in decrease of their extend and thickness. Additionally, more meltwater is reaching bed of glaciers and is accelerating their flow velocity due to faster basal sliding. Such processes result in more intense breaking off the icebergs from fronts of glaciers terminating into the sea. Dynamic response of Greenland outlet tidewater glaciers has been detected after 2000 and it affects significantly global ocean level rise by ca 0.5 mm/yr. The Antarctic Ice Sheet is actually only insignificantly reacting to global warming. The paper discusses possible scenarios of the consequences of dynamic reaction of the West Antarctic Ice Sheet for increasing warming and slow sea level rise. Permafrost is reacting in a less distinct but detectable scale. The paper is giving not only description of consequences of climate warming for cryosphere, important impact of its spatial extend and features on atmosphere and oceans are considered either. A series of positive feedacks between  warming climate and cryosphere are listed. Described evolution of cryosphere is suggesting that distinct trend of climate warming is irreversible for the next centuries. One can also expect systematic rise of global ocean level as the consequence of glacier melting and dynamic transfer of ice masses based on land to the sea.
Źródło:
Nauka; 2008, 3
1231-8515
Pojawia się w:
Nauka
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Atlantic meridional overturning circulation stable over the last 150 years
Autorzy:
Parker, Albert
Ollier, Clifford
Powiązania:
https://bibliotekanauki.pl/articles/1051199.pdf
Data publikacji:
2019-09-30
Wydawca:
Uniwersytet im. Adama Mickiewicza w Poznaniu
Tematy:
sea level rise
sea level acceleration
Atlantic Meridional Overturning Circulation
Opis:
The Atlantic Meridional Overturning Circulation (AMOC) describes the northward flow of warm, salty water in the upper layers, and the southward flow of colder water in the deep Atlantic layers. AMOC strength estimates at 41°N latitude based on satellite sea surface height (SSH), and ARGO ocean temperature, salinity and velocity, and finally the difference in between the absolute mean sea levels (MSL) of the tide gauges of The Battery, New York, 40.7°N latitude, and Brest, 48.3°N latitude. Results suggest that the AMOC has been minimally reducing but with a positive acceleration since 2002, has been marginally increasing but with a negative acceleration since 1993, and has not been reducing but only oscillating with clear periodicities up 18 years, 27 years and about 60 years since 1856.
Źródło:
Quaestiones Geographicae; 2019, 38, 3; 31-40
0137-477X
2081-6383
Pojawia się w:
Quaestiones Geographicae
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Improved Performance of Geospatial Model to Access the Tidal Flood Impact on Land Use by Evaluating Sea Level Rise and Land Subsidence Parameters
Autorzy:
Zainuri, Muhammad
Helmi, Muhammad
Novita, Maria Griselda Anindyan
Kusumaningrum, Hermin Pancasakti
Koch, Magaly
Powiązania:
https://bibliotekanauki.pl/articles/2026723.pdf
Data publikacji:
2022
Wydawca:
Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:
geospatial model
tidal flood
land use
sea level rise
land subsidence
Opis:
In the 20th century, climate change caused an increase in temperature that accelerated the rate of sea level. Sea level rise and land subsidence threaten densely populated coastal areas as well as lowlands because they cause tidal flooding. Tidal floods occur every year due to an increase in sea level rise and land subsidence. The lack of information on this phenomenon causes delays in disaster mitigation, leading to serious problems. This study was conducted to predict the area of tidal flood inundation on land use in 2020 to 2035. This research was performed in Pekalongan Regency, as one of the areas experiencing large land subsidence and sea level rise. The research data to be used were tides and the value of soil subsidence, as well as sea level rise. Digital Terrain Model (DTM) was obtained through a topographic survey. Modeling was used for DTM reconstruction based on land subsidence and sea level rise every year. The sea level rise value uses the satellite altimetry data from 1993–2018. A field survey was conducted to validate the inundation model that has been created. Land subsidence was processed using Sentinel-1 Synthetic Aperture Radar (SAR) image data with Single Band Algorithm (SBA) differential interferometry. This study proved that tidal flooding has increased every year where in 2020 it was 783.99 hectares, but with the embankment there was a reduction in inundation area of 1.68 hectares. The predicted area of tidal flood inundation in 2025, 2030 and 2035 without the embankment is 3388.98 hectares, 6523.19 hectares, 7578.94 hectares, while with the embankment in 2035 is 1686.62 hectares. The research results showed that the use of embankments is a solution for coastal mitigation as well as regional planning.
Źródło:
Journal of Ecological Engineering; 2022, 23, 2; 1-11
2299-8993
Pojawia się w:
Journal of Ecological Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Assessment of coastal vulnerability in Chabahar Bay due to climate change scenarios
Autorzy:
Armanfar, M.
Goharnejad, H.
Niri, M.Z.
Perrie, W.
Powiązania:
https://bibliotekanauki.pl/articles/48175.pdf
Data publikacji:
2019
Wydawca:
Polska Akademia Nauk. Instytut Oceanologii PAN
Tematy:
climate change
sea level rise
coast vulnerability
wind speed
storm
bathymetry
Chabahar Bay
Źródło:
Oceanologia; 2019, 61, 4
0078-3234
Pojawia się w:
Oceanologia
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Coastal zone, key area for adaptation to sea level rise. The Gulf of Gdansk case
Autorzy:
Zielinski, Tymon
Piwowarczyk, Joanna
Koroza, Aleksandra
Powiązania:
https://bibliotekanauki.pl/articles/28411662.pdf
Data publikacji:
2023
Wydawca:
Instytut Technologiczno-Przyrodniczy
Tematy:
adaptation to climate change
coastal zone
developmental strategy
Gulf of Gdansk
sea level rise
Opis:
Climate change and its consequences, including rising ocean temperature and sea level rise are well scientifically documented. The changes are especially severe for coastal communities, which are estimated to have reached c. 50% of the world’s population. Using an example of the Gulf of Gdansk region, which is of European importance, due to the presence of two major Baltic ports and global tourism, we explore, how sea related threats may affect the region and we analyse how the three major cities are prepared to these threats. The four city developmental strategies and an additional document, an “umbrella strategy” focusing on climate change threats do not consider sea level rise and more frequent storm surges as threats. The sea level rise is briefly discussed in the fourth document. The adaptation plan, an appendix to the document, mentions sea level rise, but the discussion of the problem is indirect and involves some examples of adaptation actions in loosely similar environmental conditions. The adaptation plan, in fact includes a list of possible threats, rather than a detailed discussion of the suggestions of the measures to be undertaken. For comparison, we present a multilevel approach, which is effectively run in the Port of Rotterdam and argue that such approach should be undertaken in the studied region. We conclude that despite years of education on climate change, the problem is still not recognised and is underrepresented in practical measures of the studied region. We also provide hints on how to overcome this situation.
Źródło:
Journal of Water and Land Development; 2023, 59; 208--215
1429-7426
2083-4535
Pojawia się w:
Journal of Water and Land Development
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Spatial Analysis of Coastal Vulnerability Index to Sea Level Rise in Biak Numfor Regency (Indonesia)
Autorzy:
Rumahorbo, Basa T.
Warpur, Maklon
Tanjung, Rosye H. R.
Hamuna, Baigo
Powiązania:
https://bibliotekanauki.pl/articles/24201621.pdf
Data publikacji:
2023
Wydawca:
Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:
spatial mapping
coastal vulnerability
coastal geologic variable
physical process variable
sea level rise
Biak Island
Opis:
Assessing the vulnerability of coastal areas is important in evaluating impact of sea level rise due to global climate change. This study aimed to spatially analyze and map the vulnerability level of the Biak Numfor Regency’s coastal area on Biak Island to the threat of sea level rise. The study area is limited to 500 m from the coastline and is divided into 383 grid cells. The Coastal Vulnerability Index (CVI) method was used to map the level of vulnerability of coastal areas based on four coastal geological variables (coastal elevation, coastal slope, geomorphology, and shoreline change) and three ocean physical process variables (tidal range, average significant wave height, and relative sea level rise). The results showed that the coastal areas of Biak Numfor Regency, belonging to the low, medium and high-risk vulnerability categories, were 77,685.63 km (32.18%), 159,084.38 km (65.74%), and 5,024.96 km (2.08%), respectively. The variables that contribute significantly to the level of vulnerability are coastal elevation, coastal slope, coastal geomorphology, and shoreline changes due to abrasion compared to tidal range, significant wave heights, and sea level rise rates. Vulnerability studies of other variables that can contribute to the vulnerability of coastal areas are needed, such as socio-economic variables and the impact of human activities on changes in the coastal environment, to obtain a comprehensive CVI value in supporting coastal mitigation planning efforts against sea level rise disasters so that they are more focused.
Źródło:
Journal of Ecological Engineering; 2023, 24, 3; 113--125
2299-8993
Pojawia się w:
Journal of Ecological Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Prediction of Wetland Loss Due to Sea Level Rise Around the Largest Port Area in Latin America
Autorzy:
Alfredini, P.
Arasaki, E.
Powiązania:
https://bibliotekanauki.pl/articles/2063962.pdf
Data publikacji:
2021
Wydawca:
Uniwersytet Morski w Gdyni. Wydział Nawigacyjny
Tematy:
oceanographic phenomenon
wetland loss
sea level
sea level rise
santos bay
Brazilian Coast
Port of Santos
Latin America
Opis:
Santos’s mangroves are important wetlands located in Brazilian coast, a fishing area inside Santos Bay. The overall healthy mangroves area along the riparian zones influencing the Santos Estuary is around 25.20 km2. The resulting tidal level recorded from Port of Santos tide gauge (from 1940 to 2014), also located in the estuary, shows consistent increasing trend. One healthy mangrove was selected for a previous qualitative biological survey to better understand the characteristics of the habitat to be monitored and evaluated about the possible impacts in the next decades. The mangroves situated a few meters upper from the sea level and some other areas have the risk to be submerged till 2085 which will seriously affect the riparian mangroves biome. Indeed, the mangrove area is confined downward by the low tide level and upward by existing structures, roads, rural and urban areas.
Źródło:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation; 2021, 15, 3; 677--682
2083-6473
2083-6481
Pojawia się w:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Vulnerability assessment of Southern coastal areas of Iran to sea level rise: evaluation of climate change impact
Autorzy:
Goharnejad, H.
Shamsai, A.
Hosseini, S.A.
Powiązania:
https://bibliotekanauki.pl/articles/48331.pdf
Data publikacji:
2013
Wydawca:
Polska Akademia Nauk. Instytut Oceanologii PAN
Tematy:
climate change
sea level rise
coastal area
Iran
general circulation model
sea-level change
artificial intelligence
artificial neural network
hydrological model
Źródło:
Oceanologia; 2013, 55, 3
0078-3234
Pojawia się w:
Oceanologia
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Future sea level change: a transboundary problem in the baltic sea region? - seareg case study area Gdańsk
Autorzy:
Staudt, M.
Kordalski, Z.
Powiązania:
https://bibliotekanauki.pl/articles/1185874.pdf
Data publikacji:
2005
Wydawca:
Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:
podnoszenie się poziomu morza
zmiany klimatu
modelowanie klimatu
zaopatrzenie w wodę
GIS
planowanie przestrzenne
region gdański
Morze Bałtyckie
sea level rise
climate change
climate modelling
water supply
spatial planning
Gdańsk region
Baltic Sea
Opis:
Projekt "Sea Level Change Affecting the Spatial Development of the Baltic Sea Region" SEAREG, unijnego programu Interreg IIIB porusza społeczno-ekonomiczne i środowiskowe skutki zmian klimatu w regionie Morza Bałtyckiego (BSR), w szczególności związane z podnoszeniem się poziomu morza oraz zmianami odpływu z sieci rzecznej. Te dwa czynniki mogą prowadzić do wystąpienia katastrofalnych w skutkach powodzi, wpływających bezpośrednio na zagospodarowanie przestrzenne miast, jak również na zrównoważony rozwój całego regionu Morza Bałtyckiego. Jednym z miejsc objętych szczegółowym rozpoznaniem w ramach projektu był Gdańsk. W obrębie miasta na nisko położonych obszarach tarasu nadmorskiego i Żuław Wiślanych zlokalizowane są ujęcia wód podziemnych, ważne dla zaopatrzenia w wodę do picia i na potrzeby gospodarcze. Dla Gdańska strefy zagrożone powodzią i podtopieniami zostały wyznaczone przy pomocy oprogramowania GIS, z wykorzystaniem wysoko rozdzielczych regionalnych modeli oceanograficznych, modeli powierzchni terenu i planów zagospodarowania przestrzennego. Opracowano 3 scenariusze, według których poziom morza w ciągu następnych 100 lat wzrośnie w rejonie Gdańska odpowiednio o 0,03, 0,48 i 0,97 m.
Źródło:
Polish Geological Institute Special Papers; 2005, 18; 86-92
1507-9791
Pojawia się w:
Polish Geological Institute Special Papers
Dostawca treści:
Biblioteka Nauki
Artykuł
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