NOAA/WDS Paleoclimatology - Lake Logung, Indonesia 1400 Year Multiproxy Sediment Data
This archived Paleoclimatology Study is available from the NOAA National Centers for Environmental Information (NCEI), under the World Data Service (WDS) for Paleoclimatology. The associated NCEI study type is Lake. The data include parameters of paleolimnology with a geographic location of Indonesia. The time period coverage is from 1336 to -59 in calendar years before present (BP). See metadata information for parameter and study location details. Please cite this study when using the data.
Dataset Citation
- Cite as: Rodysill, J.R.; Russell, J.M.; Bijaksana, S.; Brown, E.T.; Safiuddin, L.O.; Eggermont, H. (2012-08-01): NOAA/WDS Paleoclimatology - Lake Logung, Indonesia 1400 Year Multiproxy Sediment Data. [indicate subset used]. NOAA National Centers for Environmental Information. https://doi.org/10.25921/fbsf-cf41. Accessed [date].
- Please refer to Credit tab for full citation information.
Dataset Identifiers
- doi:10.25921/fbsf-cf41
- noaa-lake-13177
- NCEI DSI 1200_02
- NCEI DSI 1200_01
ISO 19115-2 Metadata
noaa-lake-13177
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Distributor |
NOAA National Centers for Environmental Information ncei.info@noaa.gov |
Dataset Point of Contact |
NOAA National Centers for Environmental Information ncei.info@noaa.gov |
Dataset Point of Contact | Data Center Contact NOAA World Data Service for Paleoclimatology 828-271-4800 paleo@noaa.gov |
Coverage Description | Date Range: 614 CE to 2009 CE; Date Range: 1336 cal yr BP to -59 cal yr BP; |
Time Period | 614 to 2009 |
Spatial Bounding Box Coordinates |
West: 113.3075
East: 113.3075
South: -8.0418
North: -8.0418
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Data Presentation Form | Digital table - digital representation of facts or figures systematically displayed, especially in columns |
Dataset Progress Status | Complete - production of the data has been completed |
Data Update Frequency | Data update frequency not available |
Supplemental Information | STUDY NOTES: Multiproxy sediment data from Lake Logung, Indonesia, for the past 1400 years. Paleoenvironmental proxies measured include Magnetic Susceptibility, Organic and Inorganic Carbon , Total N, C:N ratio, C and N isotopes, and Biogenic Opal. Lake Logung, Indonesia: 8°2.509'S, 113°18.452'E, 215m elevation, 7m water depth. ABSTRACT SUPPLIED BY ORIGINATOR: Variations in the location and strength of convection in the Western Pacific Warm Pool (WPWP) have a profound impact on the distribution and amount of global rainfall. Much of the variability in WPWP convection is attributed to variations in the El Niño-Southern Oscillation, for which the long-term trends and forcing mechanisms remain poorly understood. Despite the importance of WPWP convection to global climate change, we have very few paleohydrological reconstructions from the region. Here we present a new paleolimnologic and paleohydrologic record spanning the past 1,400 years using a multi-proxy dataset from Lake Logung, located in East Java, Indonesia that provides insights into centennial-scale trends in warm pool hydrology. Organic matter d13C data indicate that East Java became wetter over the last millennium until ca. 1800 Common Era (CE), consistent with evidence for the southward migration of the Intertropical Convergence Zone (ITCZ) during this time. Superimposed on this long-term trend are four decade- to century-scale droughts, inferred from organic matter d13C and calcite abundance data. They are centered at 1030, 1550, 1830, and 1996 CE. The three more recent droughts correlate with hydrologic anomalies documented in other proxy records from the WPWP region on both sides of the equator, and the two most recent droughts correlate in time with historically documented periods of multiple, intense El Niño events. Thus, our record provides strong evidence that century-scale hydrologic variability in this region relates to changes in the Walker Circulation. Human activity within the lake catchment is apparent since 1860 CE. |
Purpose | Records of past climate and environment derived from lake sediment records. Parameter keywords describe what was measured in this dataset. Additional summary information can be found in the abstracts of papers listed in the dataset citations. |
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Last Modified: 2024-02-22
For questions about the information on this page, please email: ncei.info@noaa.gov
For questions about the information on this page, please email: ncei.info@noaa.gov