Data Library ∫dX detrended-bfl ∂P [ NOAA NCEP-NCAR CDAS-1 MONTHLY Intrinsic PressureLevel vpot ]
X1.25W - 1.25W
Y91.25S - 91.25N
P[10 1000] mb
TJan 1949 - Nov 2025
served from maproom.nimet.gov.ng

∫dX detrended-bfl ∂P [ NOAA NCEP-NCAR CDAS-1 MONTHLY Intrinsic PressureLevel vpot ] : ∂P Velocity potential data

∫dX detrended-bfl ∂P [ NOAA NCEP-NCAR CDAS-1 MONTHLY Intrinsic PressureLevel vpot ] .

Independent Variables (Grids)

P
grid: /P (mb) ordered [ (962.5) (887.5) (775.0) (650.0) (550.0) (450.0) (350.0) (275.0) (225.0) (175.0) (125.0) (85.0) (60.0) (40.0) (25.0) (15.0)] :grid
Time (time)
grid: /T (months since 1960-01-01) ordered (Jan 1949) to (Nov 2025) by 1.0 N= 923 pts :grid
Longitude (longitude)
grid: /X (degree_east) ordered (1.25W) to (1.25W) by 2.5 N= 145 pts :grid
Latitude (latitude)
grid: /Y (degree_north) ordered (90N) to (90S) by 2.5 N= 73 pts :grid

Other Info

bufferwordsize
8
calendar
standard
CE
null
center
US Weather Service - National Met. Center
CS
null
datatype
doublearraytype
grib_name
VPOT
gribfield
1
GRIBgridcode
2
gribleveltype
100
gribNumBits
16
gribparam
36
gribvariable
36
PDS_TimeRange
113
pointwidth
1.0
process
62 wave triangular, 28 layer Spectral model from "Medium Range Forecast" run
PTVersion
2
subcenter
NCEP Ensemble Products
units
0.000174532925199433 kilogram-1 meter3 radian east second

References

Kalnay, E., M. Kanamitsu, R. Kistler, W. Collins, D. Deaven, L. Gandin, M. Iredell, S. Saha, G. White, J. Woollen, Y. Zhu, A. Leetmaa, B. Reynolds, M. Chelliah, W. Ebisuzaki, W. Higgins, J. Janowiak, K. C. Mo, C. Ropelewski, J. Wang, R. Jenne, and D. Joseph. The NCEP/NCAR 40-Year Reanalysis Project. Bulletin of the American Meteorological Society, March, 1996

Last updated: Tue, 02 Dec 2025 20:59:10 GMT
Expires: Sat, 03 Jan 2026 00:00:00 GMT

Data Views

PTXY
[ X Y | P T]MMMM


Filters

Here are some filters that are useful for manipulating data. There are actually many more available, but they have to be entered manually. See Ingrid Function Documentation for more information. Average over X Y P T | X Y X P X T Y P Y T P T | X Y P X Y T X P T Y P T | X Y P T |
RMS (root mean square with mean *not* removed) over X Y P T | X Y X P X T Y P Y T P T | X Y P X Y T X P T Y P T | X Y P T |
RMSA (root mean square with mean removed) over X Y P T | X Y X P X T Y P Y T P T | X Y P X Y T X P T Y P T | X Y P T |
Maximum over X Y P T | X Y X P X T Y P Y T P T | X Y P X Y T X P T Y P T | X Y P T |
Minimum over X Y P T | X Y X P X T Y P Y T P T | X Y P X Y T X P T Y P T | X Y P T |
Detrend (best-fit-line) over X Y P T | X Y X P X T Y P Y T P T | X Y P X Y T X P T Y P T | X Y P T |
Convert units from 0.000174532925199433 kilogram-1 meter3 radian east second to

Note on units