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  • 1
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    Re-evaluation of submarine landslide deposit underneath the Makassar Strait and its potential generated tsunami (2024)
    PANGAEA
    Details
    Publication Date: 2024-05-21
    Description: This is the data set that used to re-evaluate submarine landslide deposit underneath the Makassar Strait and to simulate the potential generated tsunami. Submarine landslide re-evaluation was done using 2D seismic lines covering the Makassar North Basin. These lines were acquired in 1998, 1999, 2001, and 2002 by different companies. The seismic lines were stored by Indonesia Data Center and Information Technology (PUSDATIN) of Ministry of Energy and Mineral Resources (ESDM) and used in this research under a cooperation agreement letter number 4.Pj/KS.01/SJD.2/2022. the horizons of the submarine landslide deposits were picked based on Mass Transport Deposit (MTD) Criteria by Posamentier and Martinsen (2010). This process would produce deposits dimension and distribution as an output. The result of re-evaluation was used to simulate the potential tsunami using bathymetry data from Indonesia Geospatial Information Agency (BIG).This data covering the area of Makassar Strait from 1 degN - 3 degS and 116 degE - 120 degE with 185 m resolution and can be accessed freely through BIG website (https://tanahair.indonesia.go.id/demnas/#/batnas). Simulation result was observed using 11 artificial observation station that located on the surrounding coastline. These stations were made so the time series of water elevation change could be observed.
    Keywords: BATNAS; Binary Object; cm01-43; Event label; File content; gl98-016; gl98-054; gl98-067; gl98-110; LATITUDE; Location; LONGITUDE; Makassar Strait; mdd99-050; mdd99-097; mdd99-109; mdd99-115; Raster graphic, GeoTIFF format; SEIS; Seismic; submarine landslide; Text file; tsunami; Year of observation
    Type: Dataset
    Format: text/tab-separated-values, 51 data points
    Location Call Number Limitation Availability
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    DATA PANGAEA
  • 2
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    Modern and sub-fossil corals suggest reduced temperature variability in the eastern pole of the Indian Ocean Dipole during the medieval climate anomaly (2021)
    Nature Research
    Details
    Publication Date: 2024-02-07
    Description: We present two 40 year records of monthly coral Sr/Ca ratios from the eastern pole of the Indian Ocean Dipole. A modern coral covers the period from 1968 to 2007. A sub-fossil coral derives from the medieval climate anomaly (MCA) and spans 1100–1140 ad. The modern coral records SST variability in the eastern pole of the Indian Ocean Dipole. A strong correlation is also found between coral Sr/Ca and the IOD index. The correlation with ENSO is asymmetric: the coral shows a moderate correlation with El Niño and a weak correlation with La Niña. The modern coral shows large interannual variability. Extreme IOD events cause cooling 〉 3 °C (1994, 1997) or ~ 2 °C (2006). In total, the modern coral indicates 32 warm/cool events, with 16 cool and 16 warm events. The MCA coral shows 24 warm/cool events, with 14 cool and 10 warm events. Only one cool event could be comparable to the positive Indian Ocean Dipole in 2006. The seasonal cycle of the MCA coral is reduced (〈 50% of to the modern) and the skewness of the Sr/Ca data is lower. This suggests a deeper thermocline in the eastern Indian Ocean associated with a La Niña-like mean state in the Indo-Pacific during the MCA.
    Type: Article , PeerReviewed
    Format: text
    Format: text
    Location Call Number Limitation Availability
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    OceanRep: Article in a Scientific Journal - peer-reviewed
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