NMC Global Tropospheric Analyses, daily from December 1974 to June 1976

Flattery's global analysis scheme, using second version of Hough coefficients. MORE [rda.ucar.edu/datasets/ds081.0/docs/more.summary.html] Unless you have a special interest in this dataset, DSS recommends that you use one of our reanalysis datasets, such as ds090.0 [rda.ucar.edu/datasets/ds090.0/]. That's because those are based on a more complete collection of observations, improved analysis methods, and are provided in a common modern format (GRIB).