Product: AAM from NCEP/NCAR Reanalyses
AAM from NCEP reanalysis - 2015 - Version metadata

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Title

AAM from NCEP reanalysis - 2015
Date

2016-02-24
Volume

2015
Content

Data are NCEP values of effective atmospheric angular momentum functions as calculated from NCEP/NCAR reanalyses archived on pressure surfaces. The Transfer functions and Principal moments in Eubanks (1993) are employed to derive the atmospheric angular momentum functions.
Documentation

http://files.aer.com/aerweb/AAM/readme.aam.ncep.reanalysis,http://files.aer.com/aerweb/AAM/README
Time Interval

6 hours
Time Start

2015-01-01 00:00:00
Time End

2015-12-31 18:00:00
Data Points

1460
Data

year, month, day, hour, mass_IB_X, mass_IB_Y, mass_IB_Z, mass_NonIB_X, mass_NonIB_Y, mass_NonIB_Z, motion_X, motion_Y, motion_Z
Format

ASCII
Format Description

13(e16.7)
Frequency

Irregular
Keywords

Geophysical fluids, AAM, NCEP/NCAR reanalyses
Reference

- Salstein, D.A., and R.D. Rosen, 1997: Global momentum and energy signals from reanalysis systems. Preprints, 7th Conf. on Climate Variations, American Meteorological Society, Boston, MA, 344-348.
- Kalnay, E., et al., 1996: The NCEP/NCAR 40-year reanalysis project. Bull. Amer. Meteor. Soc., 77, 437-471.
- Barnes, R.T.H., R. Hide, A.A. White, and C.A. Wilson, 1983: Atmospheric angular momentum fluctuations, length-of-day changes and polar motion. Proc. R. Soc. London, Ser. A, 387, 31-73.
Created by

U. S. National Centers for Environmental Prediction (NCEP)
Published by

GGFC Special Bureau for the Atmosphere
Contact

pnelson@aer.com

Distribution

onLine
Source

http://files.aer.com/aerweb/AAM/aam.ncep.reanalysis.2015