Temat: Eddies - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Influence of Indian Ocean Dipole Phenomena Towards the Eddy Variability in Southern Java Ocean
Autorzy:: Rachim, Fadliyan R.
Syamsudin, Mega L.
Riyantini, Indah
Yuliadi, Lintang P. S.
Powiązania:: https://bibliotekanauki.pl/articles/1065419.pdf
Data publikacji:: 2019
Wydawca:: Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:: Automated Eddy Detection
Eddies
IOD
SSH
Sea Temperature
Opis:: The phenomenon of Indian Ocean Dipole (IOD) can influence the variability of eddy in the Southern Java Ocean (SJO). The purpose of this research is to know the characteristics of eddy in the SJO at the time of the IOD condition. The research was conducted in Eastern Indian Ocean (EIO), South of the Java Island by coordinate 0º S – 15º S and 90º E – 120º E. The data used in this research is currents data, sea surface height (SSH) data, and temperature data from HYCOM, and Dipole Mode Index (DMI) data from Japan Marine Science and Technology (JAMSTEC). Methods used for detecting eddy is using the Automated Eddy Detection (AED) method. The results of this research show that the IOD phenomena affect the variability of eddies in the SJO, this is evidenced by the difference of the total eddies is generated at the time of normal conditions and at the time was going to the phenomenon of IOD. Total average eddies on IODM (+) conditions is 153 and on IODM (-) conditions is 144. IODM (+) conditions could cause the value of a central point of sea surface height (SSH) and sea temperature is lower than the normal conditions, the opposite IODM (-) conditions can cause the value of a central point of SSH and sea temperature is higher than the normal conditions.
Źródło:: World Scientific News; 2019, 132; 121-131
2392-2192
Pojawia się w:: World Scientific News
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Method of convective velocity determination from dissipative range of energy spectrum
Autorzy:: Kurasiński, T.
Kuncewicz, C.
Stelmach, J.
Powiązania:: https://bibliotekanauki.pl/articles/185541.pdf
Data publikacji:: 2012
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: przepływ turbulentny
wiry
turbulent flow
dissipative range
eddies
Opis:: In the study a new proposal of convective velocity determination necessary for eddy size determination from the dissipative range in a turbulent flow in a mixer was made. The proposed quantity depends on all the mean and fluctuating velocity components. By applying convective velocity one may determine the distribution of time and linear Taylor microscale in a stirred vessel.
Źródło:: Chemical and Process Engineering; 2012, 33, 1; 19-29
0208-6425
2300-1925
Pojawia się w:: Chemical and Process Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: Overview of Oceanic Eddies in Indonesia Seas Based on the Sea Surface Temperature and Sea Surface Height
Autorzy:: Purba, Noir P.
Faizal, Ibnu
Damanik, Finri S.
Rachim, Fadliyan R.
Mulyani, Putri G.
Powiązania:: https://bibliotekanauki.pl/articles/1031834.pdf
Data publikacji:: 2020
Wydawca:: Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:: Eddies
Indonesia Throughflow
Ocean Fronts
Water Mass
Opis:: One of the complexities of the ocean currents in the territorial waters of Indonesia is oceanic eddies form. Ocean eddy is one of the very crucial phenomena in the ocean due to its circulation and connection with the chemical and biological aspects in the water column. This study aimed to observe the distribution of oceanic eddies associated with the Sea Surface Temperature (SST) and Sea Surface Height (SSH) with the Automatic Eddy Detection (AED) method. The analysis included distribution and types correlated with seasons. The results showed that eddies occur in all regions in the Indonesian Seas except the Java Sea. In general, the occurrence of eddies every month does not differ significantly for both Ocean Cyclonic Eddies (OCE) and Ocean Anticyclonic Eddies (OAE). The total oceanic eddies in a year are around 1,149 events. A minimum radius of the ocean eddies found was about 5.08 km, and a maximum was around 386.76 km. Furthermore, the occurrence of OCE is mostly in locations that are almost the same as OAE. Both types of eddy are mostly in locations with the boundary of temperatures and the boundary of SSH. Several eddies exist every month and mostly change or move into other areas. Eddies in Indonesia seas are influenced by differences of SST and different SSH that form ocean currents. One of the complexities of the ocean currents in the territorial waters of Indonesia is oceanic eddies form. Ocean eddy is one of the very crucial phenomena in the ocean due to its circulation and connection with the chemical and biological aspects in the water column. This study aimed to observe the distribution of oceanic eddies associated with the Sea Surface Temperature (SST) and Sea Surface Height (SSH) with the Automatic Eddy Detection (AED) method. The analysis included distribution and types correlated with seasons. The results showed that eddies occur in all regions in the Indonesian Seas except the Java Sea. In general, the occurrence of eddies every month does not differ significantly for both Ocean Cyclonic Eddies (OCE) and Ocean Anticyclonic Eddies (OAE). The total oceanic eddies in a year are around 1,149 events. A minimum radius of the ocean eddies found was about 5.08 km, and a maximum was around 386.76 km. Furthermore, the occurrence of OCE is mostly in locations that are almost the same as OAE. Both types of eddy are mostly in locations with the boundary of temperatures and the boundary of SSH. Several eddies exist every month and mostly change or move into other areas. Eddies in Indonesia seas are influenced by differences of SST and different SSH that form ocean currents.
Źródło:: World Scientific News; 2020, 147; 166-178
2392-2192
Pojawia się w:: World Scientific News
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 4.

Tytuł:: Water vapor induced airborne rotational features
Autorzy:: Marks, Roman
Powiązania:: https://bibliotekanauki.pl/articles/108524.pdf
Data publikacji:: 2019
Wydawca:: Instytut Meteorologii i Gospodarki Wodnej - Państwowy Instytut Badawczy
Tematy:: rotational configuration of water molecule
airborne eddies
rotational features of greenhouse gasses
Opis:: In order to study the rotational features induced by evaporating water several laboratory experiments were conducted with airborne rotary detection discs made of absorbent cotton wool and ultralight polyurethane foam discs. Measurements indicated that water vapor develops and transits into the air an upwardly directed counterclockwise rotary motion in the Northern Hemisphere, and a clockwise motion in the Southern Hemisphere. Additionally, measurements of the thermal structure of the air/water interface indicated that evaporating water may gather rotational momentum in the warmer subsurface layer. The conducted observations suggest that the process of water evaporation may be based on the grouping of some coherently spiraling molecules in the liquid phase. The interacting molecules combine their partial rotational momentums, thus allowing the top molecule to transit via the surface tension microlayer and become airborne. At the moment of evaporation, the gathered rotational energy is taken over by the free bi-hydrogen rotor-arm of the evaporating molecule that starts to revolve. Next, the water vapor-induced rotational share of the kinetic energy is likely to be redistributed among other gaseous molecules and transferred into heat (during condensation) that further energizes the airborne convective loops. In order to confirm the rotary effects induced by water vapor, several field experiments were conducted with airborne rotary detection ribbons in the Northern Hemisphere. The observations confirmed that a more enhanced counterclockwise spiraling motion of air is found with air currents under atmospheric lows of a higher relative humidity, while weaker and clockwise directed rotary dominates under atmospheric highs.
Źródło:: Meteorology Hydrology and Water Management. Research and Operational Applications; 2019, 7, 2; 39-47
2299-3835
2353-5652
Pojawia się w:: Meteorology Hydrology and Water Management. Research and Operational Applications
Dostawca treści:: Biblioteka Nauki

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