Independent Variables (Grids)

Latitude (latitude)

grid: /lat (degree_north) ordered (90N) to (90S) by 2.0 N= 91 pts :grid

Longitude (longitude)

grid: /lon (degree_east) periodic (0) to (2W) by 2.0 N= 180 pts :grid

Time (time)

grid: /T (months since 1960-01-01) ordered (Jan 1908) to (Dec 1958) by 1.0 N= 612 pts :grid

Other Info

actual_range

[ 7.0928869 1765.1199 ]

add_offset

3276.6001

cell_methods

time: mean (monthly from 6-hourly values)

Dataset

NOAA-CIRES 20th Century Reanalysis Monthly Averages

datatype

shortarraytype

GRIB_id

2

GRIB_name

PRMSL

level_desc

Mean Sea Level

missing_value

32766

parent_stat

Mean of Ensemble Spread

precision

1

scale_factor

0.1

standard_name

air_pressure_at_sea_level

statistic

Mean of Ensemble Spread

statistic_note

These values represent a time mean of the 4 times daily ensemble spreads and are not the ensemble mean spreads of monthly averages. To get that value, you will need to divide the time-averaged variance by the number of effective independent times (which is related to the autocorrelation of that variable)

units

Pa

unpacked_valid_range

[ 0.0 6553.1001 ]

valid_range

[ -32766 32765 ]

var_desc

Mean Sea Level Pressure

standard units*

kilogram meter^-1 second^-2

References

Compo, G. P., J. S. Whitaker, P. D. Sardeshmukh, N. Matsui, R. J. Allan, X. Yin, B. E. Gleason, R. S. Vose, G. Rutledge, P. Bessemoulin, S. Bronnimann, M. Brunet, R. I. Crouthamel, A. N. Grant, P. Y. Groisman, P. D. Jones, M. Kruk, A. C. Kruger, G. J. Marshall, M. Maugeri, H. Y. Mok, O. Nordli, T. F. Ross, R. M. Trigo, X. L. Wang, S. D. Woodruff, S. J. Worley, 2011: The Twentieth Century Reanalysis Project. Quarterly J. Roy. Meteorol. Soc., 137, 1-28. DOI: 10.1002/qj.776.

Compo, G. P., J. S. Whitaker, and P. D. Sardeshmukh, 2006: Feasibility of a 100 year reanalysis using only surface pressure data. Bull. Amer. Met. Soc., 87, 175-190

Whitaker, J. S., G. P. Compo, X. Wei, and T. M. Hamill, 2004: Reanalysis without radiosondes using ensemble data assimilation. Mon. Wea. Rev., 132, 1190-1200.

Last updated: Fri, 18 Sep 2015 18:39:07 GMT