scholarly journals The Relationship between Wave Trains in the Southern Hemisphere Storm Track and Rainfall Extremes over Tasmania

2018 ◽  
Vol 146 (12) ◽  
pp. 4201-4230 ◽  
Author(s):  
Carly R. Tozer ◽  
James S. Risbey ◽  
Terence J. O’Kane ◽  
Didier P. Monselesan ◽  
Michael J. Pook
Keyword(s):  
Pacific Ocean ◽  
Indian Ocean ◽  
Wave Train ◽  
Storm Track ◽  
The Pacific ◽  
Rainfall Extremes ◽  
The Indian Ocean ◽  
The Pacific Ocean ◽  
Wave Trains ◽  
Ocean Sector

Abstract We assess the large-scale atmospheric dynamics influencing rainfall extremes in Tasmania, located within the Southern Hemisphere storm track. We characterize wet and dry multiday rainfall extremes in western and eastern Tasmania, two distinct climate regimes, and construct atmospheric flow composites around these extreme events. We consider the onset and decay of the events and find a link between Rossby wave trains propagating in the polar jet waveguide and wet and dry extremes across Tasmania. Of note is that the wave trains exhibit varying behavior during the different extremes. In the onset phase of rainfall extremes in western Tasmania, there is a coherent wave train in the Indian Ocean, which becomes circumglobal in extent and quasi-stationary as the event establishes and persists. Wet and dry extremes in this region are influenced by opposite phases of this circumglobal wave train pattern. In eastern Tasmania, wet extremes relate to a propagating wave train, which is first established in the Indian Ocean sector and propagates eastward to the Pacific Ocean sector as the event progresses. During dry extremes in eastern Tasmania, the wave train is first established in the Pacific Ocean, as opposed to Indian Ocean, and persists in this sector for the entire event, with a structure indicative of the Pacific–South American pattern. The findings regarding different wave train forms and their relationship to rainfall extremes have implications for extreme event attribution in other regions around the globe.

scholarly journals Seasonal and Interannual Variability of the Indo-Pacific Warm Pool and its Associated Climate Factors Based on Remote Sensing

2020 ◽  
Vol 12 (7) ◽  
pp. 1062 ◽  
Author(s):  
Zi Yin ◽  
Qing Dong ◽  
Fanping Kong ◽  
Dan Cao ◽  
Shuang Long
Keyword(s):  
Pacific Ocean ◽  
Indian Ocean ◽  
Time Scale ◽  
Warm Pool ◽  
Ocean Basin ◽  
The Pacific ◽  
Pacific Warm Pool ◽  
The Indian Ocean ◽  
The Pacific Ocean ◽  
Ocean Sector

With satellite observed Sea Surface Temperature (SST) accumulated for multiple decades, multi-time scale variabilities of the Indo-Pacific Warm Pool are examined and contrasted in this study by separating it into the Indian Ocean sector and the Pacific Ocean sector. Surface size, zonal center, meridional center, maximum SST and mean SST as the practical warm pool properties are chosen to investigate the warm pool variations for the period 1982–2018. On the seasonal time scale, the oscillation of the Indian Warm Pool is found much more vigorous than the Pacific Warm Pool on size and intensity, yet the interannual variabilities of the Indian Warm Pool and the Pacific Warm Pool are comparable. The Indian Warm Pool has weak interannual variations (3–5 years) and the Pacific Warm Pool has mighty interdecadal variations. The size, zonal movement and mean SST of the Indian Ocean Warm Pool (IW) are more accurate to depict the seasonal variability, and for the Pacific Ocean Warm Pool (PW), the size, zonal and meridional movements and maximum SST are more suitable. On the interannual scale, except for the meridional movements, all the other properties of the same basin have similar interannual variation signals. Following the correlation analysis, it turns out that the Indian Ocean basin-wide index (IOBW) is the most important contributor to the variabilities of both sectors. Lead-lag correlation results show that variation of the Pacific Ocean Warm Pool leads the IOBW and variation of the Indian Ocean Warm Pool is synchronous with the IOBW. This indicates that both sectors of the Indo-Pacific Warm Pool are significantly correlated with basin-wide warming or cooling.

First record of Hyalascus (Hexactinellida: Rossellidae) from the Indian Ocean, with description of a new species from a volcanic seamount in the Andaman Sea

Zootaxa ◽  
2010 ◽  
Vol 2667 (1) ◽  
pp. 64 ◽  
Author(s):  
SABYASACHI SAUTYA ◽  
KONSTANTIN R. TABACHNICK ◽  
BABAN INGOLE
Keyword(s):  
New Species ◽  
Pacific Ocean ◽  
Indian Ocean ◽  
First Record ◽  
Andaman Sea ◽  
The Pacific ◽  
The Indian Ocean ◽  
The Pacific Ocean ◽  
Back Arc ◽  
A New Species

A new species of Hyalascus is described from the submarine volcanic crater seamount of Andaman Back-arc Basin, Indian Ocean. The genus was previously known in the Pacific Ocean only.

scholarly journals Tracking the Missing Heat from the Global Warming Hiatus

Eos ◽  
2015 ◽  
Vol 96 ◽  
Author(s):  
Christina Reed
Keyword(s):  
Global Warming ◽  
Pacific Ocean ◽  
Indian Ocean ◽  
Surface Heat ◽  
The Pacific ◽  
Global Warming Hiatus ◽  
The Indian Ocean ◽  
The Pacific Ocean ◽  
Warming Hiatus

Despite indications that the Pacific Ocean is helping to take up the world's missing surface heat, it is not storing the heat; oceanographers now find the ocean has moved heat over to the Indian Ocean.

scholarly journals Hindu-Buddha: Cara Masyarakat Nusantara dalam Berspiritual Sebelum Datang Islam

2020 ◽  
Vol 5 (2) ◽  
pp. 183
Author(s):  
Domidoyo Marthinus
Keyword(s):  
Pacific Ocean ◽  
Indian Ocean ◽  
The Pacific ◽  
The World ◽  
The Indian Ocean ◽  
The Pacific Ocean ◽  
The Way

Nusantara adalah suatu wilayah kepulauan yang berada di antara dua benua, Asia dan Australia, sebagai benua yang berada dalam dua samudera raya yang di kenal sebagai samudera India dan samudera Pasifik. Kepulauan ini memotong ekuator dari 95 derajat sampai 141 derajat bujur timur. Penduduk pulau ini menarik perhatian berbagai masyarakat dari penjuru dunia, karena tanah subur dengan  limpahan rempah-rempah dan corak masyarakat yang akomodatif dengankecenderunganfriendly dengan kehadiran tamu. Hal ini memicu para pedagang untuk berniaga dan sekaligus bersyiar atau berdakwah. Orang India yang beragama Hindu dan Buddha menjadi orang pertama yang berlabuh untuk berdagang dan sekaligus memperkenalkanagama yang di anut. Hal ini menjadikan identitas sangat bagus untuk diperbincangkan. Sebagai pendatang dantamu di Nusantara, orang-orang India membawa segala identitas termasuk budaya dan agama. Paper ini menjelaskan cara agama dari India hidup dan besar di tengah masyarakat.[The Nusantara is an archipelago located between two continents, Asia and Australia, as a continent located in two major oceans known as the Indian Ocean and the Pacific Ocean. These islands intersect the equator from 95 degrees to 141 degrees east longitude. The inhabitants of the island attract the attention of various people from all over the world because the land is fertile with an abundance of spices and an accommodating community style with a friendly inclination to the presence of guests. It triggered the traders to trade and simultaneously spread or preach. Indians who were Hindus and Buddhists were the first to anchor to trade and at the same time introduce the religion adherence embraced. It makes identity important to talk about. As guests and guests in the archipelago, Indians carry all identities, including culture and religion. This paper explains the way religions from India live and grow in society.]

The rare deep-living hyperiid amphipod Megalanceoloides remipes (Barnard, 1932): complementary description and symbiosis

Zootaxa ◽  
2016 ◽  
Vol 4178 (1) ◽  
pp. 138 ◽  
Author(s):  
REBECA GASCA ◽  
STEVEN H.D. HADDOCK
Keyword(s):  
Pacific Ocean ◽  
Indian Ocean ◽  
Gulf Of California ◽  
South Atlantic ◽  
Symbiotic Association ◽  
The Pacific ◽  
The Indian Ocean ◽  
The Pacific Ocean ◽  
In Situ Observations

A female ovigerous specimen of the rare deep-living hyperiid Megalanceoloides remipes (Barnard, 1932) was collected with a remotely operated submersible (ROV) at a depth of 2,094 m in the Farallon Basin, Gulf of California. The specimen was found to be symbiotically associated with the siphonophore Apolemia sp. Eschscholtz, 1829. Hitherto, this species was known only from two other specimens, one from the South Atlantic and another from the Indian Ocean; the present record is the first from the Pacific Ocean. Previous descriptions lacked morphological details of different appendages; these data are provided here. In addition, we present the first data on its symbiotic association from in situ observations. The colors of the hyperiid and of some parts of the Apolemid were very similar, thus supporting the notion that some hyperiids tend to mimic the color of its host. 

scholarly journals Studi Karakteristik Suhu Permukaan Laut (SPL) Di Perairan Selat Lombok Menggunakan Citra Satelit EOS Aqua MODIS

2021 ◽  
Vol 4 (2) ◽  
pp. 22
Author(s):  
Fitra Cahya Prima ◽  
I Wayan Gede Astawa Karang ◽  
I Gede Hendrawan
Keyword(s):  
Pacific Ocean ◽  
Indian Ocean ◽  
Atmospheric Conditions ◽  
The North ◽  
The Pacific ◽  
The Indian Ocean ◽  
The Pacific Ocean ◽  
Sst Anomaly ◽  
Temporal And Spatial ◽  
North And South

The Lombok Strait is a strait located between Lombok Island and Bali Island which connects the waters of the Bali Sea to the Indian Ocean, whose SST conditions vary with oceanographic-atmospheric conditions in the Indian Ocean and the Pacific Ocean. This research aims to determine the temporal and spatial SST in the North and South Lombok Strait. Therefore, this study divides the Lombok Strait area into two because of the influence of the Pacific Ocean and the Indian Ocean. The method used in this research is descriptive and statistical analysis. The highest average monthly SST in the northern and southern Lombok Strait occurred in April at 29.11 °C and the lowest in August at 26.82°C. For the average seasonal SST, the highest occurred at transition I of 28.86°C, and the lowest occurred in the eastern season at 27.39°C. The highest average annual SST occurred in 2010 at 28.83°C and the lowest occurred in 2018 at 27.69°C. The northern SST anomaly has the same fluctuation as ENSO with inversely proportional IOD. Southern SST anomaly has fluctuation which is inversely proportional to ENSO and IOD. The correlation between SST anomaly in the north and ENSO correlates 0.90 (very strong), while with IOD it correlates 0.12 (very low). The correlation between SST anomaly in the southern part and ENSO correlates -0.11 (very low), while with IOD it correlates -0.73 (strong)

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