mean daily NMC Reanalysis (1948)
X axis: whole world in 144 2.50° steps,
first point at 0.00° E, last point at 357.50° E
Y axis: regular grid with 73 -2.50° steps,
first point at 90.00° N, last point at 90.00° S
Z at 500.00 millibar air_pressure
1-daily data available from 01Jan1948 to 07Aug2020 ( 26572 times)
Variable hgt (mean Daily Geopotential height) in m Full metadata.
Please consider downloading this field from the authoritative site.
If you really want to get it here,
NCEP/NCAR 500mb height is available as
a netcdf file (size 256.328 MB).
mean daily NMC Reanalysis (1948)