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Home — Field: NCEP/NCAR 500mb height

Field

NCEP/NCAR 500mb height
more information 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 11Oct2020 ( 26637 times)
Variable hgt (mean Daily Geopotential height) in m
Full metadata.

Get grid points, average area or generate subset
Mask:   add a mask to the list help
Latitude: °N - °N help
Longitude: °E - °E
Boundaries:
Make: average max min set of grid points subset of the field help
Demand at least: % valid points in this region help
helpApply daily high/low-pass filter
filter
cut-off value days
requiring at least % valid data
helpApply year-on-year high/low-pass filter
filter
cut-off value years
requiring at least % valid data
helpCreate a field with lower time resolution
New time scale:
New variable: of 500mb height
Threshold:
Minimum:% valid data
First apply:-day running mean
Missing data: ignore, climatology, trend, persistence.
helpCreate a field with lower spatial resolution
Average over blocks of longitude and latitude grid cells

Area with extremes
Compute area with annual -day average minimum or maximum extreme beyond 1 in 10 yr return values.

Compute zonal mean

Compute annual cycle
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 257.114 MB).