CDIAC encourages users to make this site their main source for obtaining USHCN data. This practice is endorsed by our colleagues at NCDC who compiled the data and contributed them for online distribution by CDIAC. CDIAC and NCDC will work closely to ensure that the latest USHCN data are always available from the CDIAC site, which provides users great flexibility in choosing exactly how much and what types of USHCN data they wish to obtain. Questions regarding this site may be directed to Dale Kaiser (kaiserdp@ornl.gov) of CDIAC.

These data were compiled by:

C.N. Williams, Jr., M.J. Menne, R.S. Vose, and D.R. Easterling
National Climatic Data Center, National Oceanic and Atmospheric Administration

Data were prepared for distribution by:

B.L. Jackson, L.M. Olsen, D.P. Kaiser, and T.A. Boden
Carbon Dioxide Information Analysis Center (CDIAC),
Environmental Sciences Division (ESD),
Oak Ridge National Laboratory (ORNL),
Oak Ridge, Tennessee. 37831-6290

The Oak Ridge National Laboratory is managed by:
University of Tennessee Battelle,LLC
for the U.S. Department of Energy (DOE).