karimata strait
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2022 ◽  
Vol 29 ◽  
pp. 100327
Author(s):  
Hsiao-chun Hung ◽  
Hartatik ◽  
Tisna Arif Ma'rifat ◽  
Truman Simanjuntak

PANALUNGTIK ◽  
2021 ◽  
Vol 4 (2) ◽  
pp. 75-96
Author(s):  
Gregorius Andika Ariwibowo

This paper is a study of the book Chu-fan-chi compiled by Chau Ju-Kua (Zhao Rugua) from 1208 to 1224 or when he was an official at the customs office (Shi-po-shi) of Quanzhou Port. Chu-fan-chi can be considered as documentation of the Trans-Asian maritime trade during the time of the Buddhist Cosmopolis. This period was an era that formed an Asia Civilization with the establishment of economic, political, cultural, and scientific cooperation that grew along with the development of Hindu-Buddhist Religion in the Sino-Indian region since the 7th century. This paper wants to provide an overview of how the conditions of trade routes and activities in Sriwijaya in the 10th to 13th centuries, which is the information from Chau Ju-Kua that describe the dynamic relationship between Sriwijaya and the Song Dynasty in the formation of maritime history and the spice trade in the archipelago. This study also aims to re-examine the bilateral relationship between China and Srivijaya during the heyday of the Buddhist Cosmopolitan period. This study is expected to redevelop historiographic studies of the Buddhist Cosmopolitan period. This study was compiled by collecting data from various historical and archaeological records and works that have been compiled in various secondary sources, especially from the records of Sinology scholars who have studied relics in the form of government reports, travel records, documentation, and journals originating from the Song Dynasty. According to a Chau Ju-Kua, Sriwijaya not just only sought to profit from the hectic trade traffic that crossed the Natuna Sea, Karimata Strait, Malacca Strait, and Sunda Straits, but Sriwijaya was also able to maintain the security and continuity of Trans-Asian trade traffic at that time.


2021 ◽  
Vol 53 (2) ◽  
Author(s):  
Agita Vivi Wijayanti ◽  
Rahmat Hidayat ◽  
Akhmad Faqih ◽  
Furqon Alfahmi

The Madden-Julian Oscillation and Cold Surge phenomena have been known to cause increased rainfall, with the capacity to trigger hydrometeorological disasters, in western Indonesia. However, further investigations are required regarding the interaction between these phenomena on rainfall pattern. Therefore, this study aims to analyze the interaction between MJO and CS over western Indonesia, particularly by using land-based rainfall observation data from multiple stations, as previous studies were dominated by the use of gridded data from remote observations. This study utilized in-situ observation data obtained from 4329 weather observations and rain stations between 1989 and 2018.  Subsequently, quality control performed based on data availability exceeding 70% over a 30-year period resulted in 303 selected stations to be used for further analysis. Meanwhile, the RMM index, as well as reanalysis data of mean sea level pressure and 925 hPa meridional wind, were also applied for MJO and CS identification. According to the composite analysis, the effect of CS on MJO phases tends to increase precipitation by about 50%, over western Indonesia, with maximum increase ranging from 200 to 400% over the northeastern coast of Sumatra, around Karimata Strait (Riau Islands and West Kalimantan), as well as the northern coast of Java. These areas are exposed to the sea and have direct access to the wind-terrain interaction. In addition, the highest rainfall anomaly due to the MJO-CS interaction occurs around Karimata Strait, followed by northern Sumatra and Java, with spatially averaged rainfall anomaly reaching 5 mm/day over the area.


2021 ◽  
Vol 126 (2) ◽  
Author(s):  
T. F. Xu ◽  
Z. X. Wei ◽  
R. D. Susanto ◽  
S. J. Li ◽  
Y. G. Wang ◽  
...  

2019 ◽  
Vol 25 (4) ◽  
pp. 225
Author(s):  
Suwarso Suwarso ◽  
Achmad Zamroni ◽  
Moh Fauzi

Perikanan cumi-cumi telah berkembang di Laut Jawa dan Laut Cina Selatan, didukung oleh alat tangkap bouke ami dan cast net dengan armada penangkap skala menengah. Perikanan berkembang sebagai bentuk diversikasi usaha penangkapan beralih target species akibat terjadinya pergeseran trophic level yang berkaitan dengan perubahan ekosistem serta indikasi pergantian populasi dari sumberdaya ‘multi-species’. Kajian distribusi, kelimpahan dan hasil tangkapan Cumi-cumi (Loliginidae) di perairan Paparan Sunda bagian selatan didasarkan pada data monitoring oleh enumerator tahun 2018 terhadap alat penangkap cumi-cumi (bouke ami dan cast net), didukung oleh data pendaratan per kapal di TPI Muara Angke (Jakarta) periode 2012-2018 dan TPI Kejawanan (Cirebon) periode 2008-2018. Observasi lapangan ditujukan untuk mendeskripsikan karakteristik armada, alat tangkap dan aspek operasional penangkapan. Hasil menunjukkan daerah penangkapan cumi-cumi di Paparan Sunda bagian selatan tersebar luas di Laut Jawa dan Laut Cina Selatan, tapi lebih terkonsentrasi di perairan selatan Selat Karimata yang ditunjukkan oleh tingginya intensitas penangkapan (54% dari total trip penangkapan). Namun demikian, secara umum kelimpahan cumi-cumi (ditunjukkan oleh indek kelimpahan CPUE dalam Kg/hari) hampir seragam sekitar 113-133 kg/hari, sedang indek kelimpahan (CPUE) dalam Kg/trip terlihat berbeda. Perbedaan nyata juga terlihat dari total hasil tangkapan cumi-cumi dari Selat Karimata yang mencapai 55% dari total pendaratan cumi-cumi dari paparan tersebut. Secara umum sebagai target species cumi-cumi berkontribusi sebanyak 93% dari total hasil tangkapan pada alat penangkap cumi. Trend kenaikan hasil tangkapan cumi-cumi berlangsung hingga saat ini baik di Muara Angke maupun Kejawanan. Dalam komposisi jenis prosentase cumi-cumi juga menunjukkan semakin tinggi pada hasil tangkapan pukat (cantrang). Hal-hal terkait pengelolaan perikanan cumi sebagai diversifikasi usaha penangkapan dan pengalihan target species juga dibahas.Squids fishery had well developed in the Java Sea and the South China Sea, was supported by the bouke ami and cast net that were using the medium scale boats. The fisheries developed as the fishing diversification over the species target as an impact of the tropic level changes correspond to the ecosystem changes and substitution of fish population from ‘multi-species’ fish resources. Study of distribution, abundance and catch of squid (Loliginidae) in the southern of Sunda Shelf waters was carried out based on daily monitoring data by enumerators (enumeration data) in 2018 of squid fishing gears (bouke ami, cast net and squid fishing) supported by 201 squid landing data at TPI Muara Angke (Jakarta) for the 2012-2018 period and TPI Kejawanan (Cirebon) for the 2008-2018 period. Field observations are intended to describe the characteristics of the fleet, fishing gear and operational aspects of capture. The results showed that the squid fishing area in the southern part of Sunda Shelf was widespread in the Java Sea and the South China Sea, but concentrated in the southern of Karimata Strait as indicated by the high intensity of catch (54% of the total fishing trips). However, in general the abundance of squid (indicated by the CPUE abundance index in kg / day) is almost the same, which is around 113-133 kg / day, while the abundance index (CPUE) in kg / trip looks different. Significant differences were also seen from the total catch of squid from the Karimata Strait which reached 55% of the total squid landings from the Shelf. The catch of squid that occurred until now shows an upward trend, this is as recorded in Muara Angke and Kejawanan. In catch composition, the percentage of squid also showed higher catches on trawlers (cantrang). Matters related to the management of squid fisheries as a diversification of fishing effort and diversion of target species are also discussed.


2019 ◽  
Vol 38 (4) ◽  
pp. 47-57 ◽  
Author(s):  
Yan Wang ◽  
Tengfei Xu ◽  
Shujiang Li ◽  
R. Dwi Susanto ◽  
Teguh Agustiadi ◽  
...  

2019 ◽  
Vol 38 (4) ◽  
pp. 1-11 ◽  
Author(s):  
Zexun Wei ◽  
Shujiang Li ◽  
R. Dwi Susanto ◽  
Yonggang Wang ◽  
Bin Fan ◽  
...  

2018 ◽  
Vol 8 (1) ◽  
pp. 51
Author(s):  
Harianto Harianto ◽  
Arie Antasari Kushadiwijayanto ◽  
Apriansyah Apriansyah

Karimata strait is located in the western Indonesian, separate the Kalimantan and Belitung island, that has an important role for the distribution services. The information about its dynamics such as tidal behavior, and wave is the key to support the navigation activities in this area. This research describes the results of measurements of the physical oceanography parameter on the eastern side of the Karimata Strait, Pasir Mayang Beach. The tidal data were measured for 15 days in February 25th – March 12th, 2017 and sea current were observed for 24 hours on February 27-28th, 2017. The result showed that tidal type in this area is diurnal tide with amplitude of M2, S2, K1, and O1 respectively are 0.085 m, 0.086 m, 0.455 m, and 0.342 m. Significant wave’s high is ranged from 0.12 – 0.31 m with significant period of 5.32-6.9 s. The wave direction is south western. The current velocity is ranged from 0.087- 0.112 m/s and average current velocity is 0.092 m/s. The tidal current direction is northeast at low tide and south western at high tide. This study also reveals important information that wave energy variability is not only affected by seasonal conditions but also influenced by tides. The tides have responsibility to change the propagation medium of wave that is originated dispersive to non-dispersive medium. This study opens a new study of correction of wave measurement procedures by including and taking into account the effects of tides.


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