BER launches Environmental System Science Program. Visit our new website under construction!

U.S. Department of Energy Office of Biological and Environmental Research

BER Research Highlights


2000 Years of Regional Temperature Variations in China
Published: February 22, 2010
Posted: March 04, 2010

Knowledge of past climate can improve our understanding of the climate variability; however, our confidence in historical climate data remains a critical issue. Scientists conducted an uncertainty analysis of 2000 years of regional temperature variations in China based on available proxies reconstructed from tree rings, stalagmites, ice cores, lake sediments, and historical documents. Results indicate, that although large uncertainties are found for the period prior to the 16th century, high levels of consistency are identified in all regions during the past 500-years. This period is highlighted by two cold periods from the 1620s-1710s and the 1800s-1860s and warming during the 20th century. The analysis also indicates that warming during the 10-14th centuries in some regions might be comparable in magnitude to the warming of the last few decades of the 20th century. The research is a collaborative study under the United States Department of Energy and China Ministry of Sciences and Technology joint agreement "Climate Sciences."

Reference: Ge, Q.-S., J.-Y. Zheng, Z.-X. Hao, X.-M. Shao, W.-C. Wang, and J. Luterbacher, 2010: Temperature variation through 2000 years in China: An uncertainty analysis of reconstruction and regional difference. Geophys. Res. Lett., 37, L03703, doi:10.1029/2009GL041281.

Contact: Renu Joseph, SC-23.1, (301) 903-9237
Topic Areas:

  • Research Area: Earth and Environmental Systems Modeling

Division: SC-33.1 Earth and Environmental Sciences Division, BER

 

BER supports basic research and scientific user facilities to advance DOE missions in energy and environment. More about BER

Recent Highlights

Mar 23, 2021
Molecular Connections from Plants to Fungi to Ants
Lipids transfer energy and serve as an inter-kingdom communication tool in leaf-cutter ants&rsqu [more...]

Mar 19, 2021
Microbes Use Ancient Metabolism to Cycle Phosphorus
Microbial cycling of phosphorus through reduction-oxidation reactions is older and more widespre [more...]

Feb 22, 2021
Warming Soil Means Stronger Microbe Networks
Soil warming leads to more complex, larger, and more connected networks of microbes in those soi [more...]

Jan 27, 2021
Labeling the Thale Cress Metabolites
New data pipeline identifies metabolites following heavy isotope labeling.

Analysis [more...]

Aug 31, 2020
Novel Bacterial Clade Reveals Origin of Form I Rubisco
Objectives

  • All plant biomass is sourced from the carbon-fixing enzyme Rub [more...]

List all highlights (possible long download time)