[Keyword='TREE-RINGS']
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Temperature Variation in China During the Last Two Millennia, NOAA/NCDC/WDC Paleoclimatology Entry ID: NOAA_NCDC_PALEO_2002-061 |
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Summary
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Abstract:
[ABSTRACT] Three alternate China-wide temperature composites covering the last 2000 years were established by combining multiple paleoclimate proxy records obtained from ice cores, tree rings, lake sediments and historical documents. Five periods of temperature variation can be identified: a warm stage in AD 0-240, a cold interval between AD 240 and 800, a return to warm conditions from AD 800-1400, including the Medieval Warm Period between AD 800-1100, the cool Little Ice Age period between 1400-1920, and the present warm stage since 1920. Regional temperature variation is found during AD 800-1100, when warm conditions occurred in Eastern China and in the northeastern Tibetan Plateau and in AD 1150-1380, when the southern Tibetan Plateau experienced a warm interval. In contrast, evidence for cool conditions during the LIA is more consistent among the proxy records. The temperature reconstructions for China and the Northern Hemisphere show good agreement over the past millennium. This data set consists of a 2000 year, decadal resolution multi-proxy temperature reconstructions for China. Four of the proxy series are from the Tibetan Plateau: the Guliya and Dunde ice cores, Dulan tree-ring record, and a southern Tibetan Plateau composite tree-ring record. Five series were obtained from Eastern China and Japan, including Jinchuan peat, eastern China documentary evidence, tree-ring series from Japan, and two Taiwanese lake sediment records. Three temperature reconstruction time series are presented. The first, called "H-res", was derived by averaging only the high-resolution proxy records. Considering the relatively large age uncertainties of the lake-sediment and peat records (??50 years), these records were not included in this composite. The second composite, named "Complete", was derived directly by averaging all 9 proxy records. The "Weighted" composite reconstruction was formed by combining area weighted regional proxy records. Wang and Gong [2000] used this method to establish an annual mean temperature series of China for the period 1880 to 1998. They divided the Chinese territory into ten regions according to inter-correlations among gridded 1 degree by 1 degree latitude-longitude mean temperature records. According to Wang and Gong [2000], the area weights of Eastern China, Dunde ice core, Guliya ice core, southern TP tree-rings and Jinchuan peat are 0.329, 0.198, 0.149, 0.182 and 0.131, respectively. The data of Great Ghost Lake and Jiaming Lake in Taiwan were considered with an area weight of 0.011. |
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Link:
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Description: Access to data and documentation Link: VIEW RELATED INFORMATION Description: Additional documentation and graphics. |
Geographic Coverage
| N: 56.58 | S: 15.06 | E: 137.97 | W: 70.83 |
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Data Set Citation
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Dataset Originator/Creator:
Yang, B., Braeuning, A., Johnson, K.R., and Yafeng, S.
Dataset Title: Temperature Variation in China During the Last Two Millennia Dataset Release Date: September 2002 Dataset Release Place: Boulder, CO Dataset Publisher: IGBP PAGES/World Data Center Paleoclimatology Issue Identification: IGBP PAGES/WDC Paleoclimatology Contribution #2002-061 Other Citation Details: NOAA/NCDC Paleoclimatology Program, Boulder CO, USA Online Resource: http://www.ngdc.noaa.gov/paleo/pubs/yang2002/yang2002.html |
Temporal Coverage
| Start Date: 0000-01-01 |
| Stop Date: 1990-12-31 |
Paleo_Temporal_Coverage
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Paleo Start Date:
2000 ybp
Paleo Stop Date: 0 ybp Chrono Unit: |
Location Keywords
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CONTINENT
> ASIA
> EASTERN ASIA
> CHINA
CONTINENT > ASIA > EASTERN ASIA > TAIWAN |
Data Resolution
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Latitude Resolution:
1 degree
Longitude Resolution: 1 degree Temporal Resolution: annual |
Science Keywords
| ATMOSPHERE >ATMOSPHERIC TEMPERATURE >AIR TEMPERATURE [Definition] |
| ATMOSPHERE >ATMOSPHERIC TEMPERATURE >TEMPERATURE ANOMALIES [Definition] |
| BIOSPHERE >VEGETATION >TREE RINGS [Definition] |
| PALEOCLIMATE >ICE CORE RECORDS >ISOTOPES [Definition] |
| PALEOCLIMATE >LAND RECORDS >TREE RINGS [Definition] |
| PALEOCLIMATE >OCEAN/LAKE RECORDS >SEDIMENTS [Definition] |
| PALEOCLIMATE >PALEOCLIMATE RECONSTRUCTIONS >AIR TEMPERATURE RECONSTRUCTION [Definition] |
ISO Topic Category
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BIOTA
CLIMATOLOGY/METEOROLOGY/ATMOSPHERE GEOSCIENTIFIC INFORMATION OCEANS |
Platform
| GROUND-BASED OBSERVATIONS [Information] |
Project
| IGBP >International Geosphere-Biosphere Programme [Information] |
| PAGES >Past Global Changes, IGBP [Information] |
Access Constraints
| None |
Use Constraints
| None |
Keywords
| temperature reconstructions |
| climate change |
| climate variability |
| Medieval Warm Period |
| Tibetan Plateau |
| Eastern China |
| proxy records |
| Dunde ice core |
| Guliya ice core |
| Jinchuan peat |
| tree-rings |
| lake sediments |
| Great Ghost Lake |
| Jiaming Lake |
Data Set Progress
| COMPLETE |
Originating Center
| NOAA/NCDC |
Data Center
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World Data Center for Paleoclimatology, Boulder
[Information]
Data Center URL: http://www.ncdc.noaa.gov/paleo/ Dataset ID: Data Contribution Series #2002-061
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Distribution
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Distribution_Media:
online ftp, www
Distribution_Format: ascii Fees: none |
Personnel
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YANG
BAO Role: INVESTIGATOR Contact Address: Institute of Cold and Arid Regions Environmental and Engineering Chinese Academy of Sciences Country: China |
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ACHIM
BRAEUNING Role: INVESTIGATOR Contact Address: Institute for Geography University of Stuttgart City: Stuttgart Country: Germany |
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KATHLEEN
R.
JOHNSON Role: INVESTIGATOR Contact Address: Department of Earth and Planetary Science University of California City: Berkeley Province or State: CA Country: USA |
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YAFENG
SHI Role: INVESTIGATOR Contact Address: Institute of Geography and Limnology Chinese Academy of Sciences Nanjing Country: CHINA |
Publications/References
Yang, B., Braeuning, A., Johnson, K.R., and Yafeng, S., 2002, General
characteristics of temperature variation in China during the last two
millennia. Geophysical Research Letters, 10.1029/2001GL014485, 11 May
2002.
characteristics of temperature variation in China during the last two
millennia. Geophysical Research Letters, 10.1029/2001GL014485, 11 May
2002.
Creation and Review Dates
DIF Creation Date:
2003-04-10
Last DIF Revision Date:
2005-04-19
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