NOAA/WDS Paleoclimatology - Guliya Ice Core, Tibet 45 Year High-Resolution Trace Elements 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 Ice Core. The data include parameters of ice cores with a geographic location of China, Eastern Asia. The time period coverage is from -21 to -65 in calendar years before present (BP). See metadata information for parameter and study location details. Please cite this study when using the data.
- Cite as: Sierra-Hernández, M.R.; Beaudon, E.; Gabrielli, P.; Thompson, L.G. (2020-09-29): NOAA/WDS Paleoclimatology - Guliya Ice Core, Tibet 45 Year High-Resolution Trace Elements Data. [indicate subset used]. NOAA National Centers for Environmental Information. https://doi.org/10.25921/3995-b417. Accessed [date].
- Please refer to Credit tab for full citation information.
- doi:10.25921/3995-b417
- noaa-icecore-31432
- NCEI DSI 1200_02
- NCEI DSI 1200_01
noaa-icecore-31432
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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: 1971 CE to 2015 CE; Date Range: -21 cal yr BP to -65 cal yr BP; |
Time Period | 1971 to 2015 |
Spatial Bounding Box Coordinates |
N: 35.28
S: 35.28
E: 81.48
W: 81.48
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Data Presentation Form | Digital table - digital representation of facts or figures systematically displayed, especially in columns
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Dataset Progress Status | Complete - production of the data has been completed |
Data Update Frequency | Data update frequency not available |
Supplemental Information |
STUDY NOTES: Guliya 2015 ice core 45-year high-resolutions trace elements data, including concentration, enrichment factor (EF) relative to Fe, and excess concentrations for Cd, Zn, Pb, Ni, Al, and Fe
ABSTRACT SUPPLIED BY ORIGINATOR: Over the last 4 decades, Asian countries have undergone substantial economic development, leading to rapid urbanization and industrialization. Consequently, fossil fuel consumption has risen dramatically, worsening the air quality in Asia. Fossil fuel combustion emits particulate matter containing toxic metals that can adversely affect living organisms, including humans. Thus, it is imperative to investigate the temporal and spatial extent of metal pollution in Asia. Recently, we reported a continuous and high-resolution 1650-1991 ice core record from the Guliya ice cap in northwestern Tibet, China, showing contamination of Cd, Pb, and Zn during the 20th century. Here, we present a new continuous and high-resolution ice core record of trace metals from the Guliya ice cap that comprises the years between 1971 and 2015, extending the 1650-1991 ice core record into the 21st century. Non-crustal Cd, Pb, Zn, and Ni enrichments increased have since the 1990s relative to the 1971-1990 period, reaching a maximum in 2008. The enrichments of Cd, Pb, Zn, and Ni increased by ~75%, 35%, 30%, and 10%, respectively, during the 2000-2015 period relative to 1971-1990. The observed trace element (TE) enrichments likely originated primarily from fossil fuel combustion and biomass burning, with contributions from industrial processes and agricultural activities from South Asia (Pakistan, Afghanistan, India, and Nepal), Central Asia (Kazakhstan, Kyrgyzstan, Tajikistan, Turkmenistan, and Uzbekistan), and the Xinjiang province in western China. This new record demonstrates that the current emissions in Asia impact remote high-altitude glaciers in the region. |
Purpose | Records of past temperature, precipitation, atmospheric trace gases, and other aspects of climate and environment derived from ice cores drilled on glaciers and ice caps around the world. 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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Theme keywords | Global Change Master Directory (GCMD) Science Keywords
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Data Center keywords | Global Change Master Directory (GCMD) Data Center Keywords
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Last Modified: 2023-09-01
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