Comparison of trends and variability in CRU, ERA-40 and NCEP/NCAR analyses of monthly-mean surface air temperature  /
Simmons, A. J.(Adrian J.)
European Centre for Medium Range Weather Forecasts.Re-analysis Project.
Reading : European Centre for Medium Range Weather Forecasts,
2004.
"April 2004.".
Includes bibliographical references (p. 18-19)
ERA-40 (Project)
Atmospheric temperature
Time-series analysis.
Also available online via the European Centre for Medium Range Weather Forecasts publications home page