
NCEP Daily Northern Hemisphere Tropospheric Analyses for 1973 January to 1997 March
d066000
| DOI: 10.5065/6KFW-3Z50

This dataset contains twice daily gridded Northern Hemisphere analyses from NCEP's operational model on 47-by-51 and 65-by-65 polar-stereographic grids centered on the North Pole. Available parameters include geopotential height, temperature, stream functions, thickness, and vertical velocity for various levels and layers through the troposphere.
NCEP prepared the 65-by-65 analyses, and were an advancement over the 47-by-51 "B3" analyses. Later NCEP made global analyses, from which the 65-by-65 analyses were interpolated. To continue the 47-by-51 analyses, NCAR/CISL/DSS extracted them from the 65-by-65 grid.
Air Temperature | Geopotential Height | Humidity | Precipitation Amount |
Sea Level Pressure | Sea Surface Temperature | Snow Depth | Tropopause |
Upper Air Temperature | Upper Level Winds | Vertical Wind Velocity/Speed |
Ground or water surface | Tropopause level | 1000 mbar | 850 mbar |
700 mbar | 500 mbar | 400 mbar | 300 mbar |
250 mbar | 200 mbar | 150 mbar | 100 mbar |
70 mbar | 50 mbar | 30 mbar | 10 mbar |


