Independent Variables (Grids)

Pressure

grid: /P (mb) ordered [ (925) (500) (250) (200)] :grid

Time

grid: /T (pentads since 1961-01-01) periodic (22-26 Dec) to (17-21 Dec) by 1.0 N= 73 pts :grid

Longitude (longitude)

grid: /X (degree_east) periodic (0) to (2.5W) by 2.5 N= 144 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

file_missing_value

9.99900026E20

grib_name

VPOT

gribfield

1

GRIBgridcode

2

gribleveltype

100

gribNumBits

16

gribparam

36

gribvariable

36

missing_value

NaN

PDS_TimeRANGE

113

pointwidth

1.0

process

(180) 62 wave triangular, 28 layer Spectral model from "Medium Range Forecast" run

PTVersion

2

standard_name

atmosphere_horizontal_velocity_potential

subcenter

NCEP Ensemble Products

units

m² /s

standard units*

meter² second^-1

history

NOAA NCEP-NCAR CDAS-1 pc9920 Intrinsic PressureLevel vpot

Boxes with less than 0.0% dropped
Averaged over T2[1200 22 Jun 1999 - 1200 22 Jun 2000, 2400 21 Dec 2020] minimum 0.0% data present

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, 17 Jun 2025 13:55:25 GMT