ECMWF SHEBA Column Tendencies Data Set

 

 

 

Description of data set
 

The file EC_tend.nc includes the tendencies of temperature, moisture and wind velocity at the SHEBA column. It is a subset of ECMWF.nc, which includes all the ECMWF variables in over the entire SHEBA column. For a detailed description of the file ECMWF.nc, visit http://www.atmos.washington.edu/~breth/SHEBA/ECMWF.html.

The following table gives the netCDF variable names included in EC_tend.nc.

 

Summary of all variables in EC_tend.nc

netCDF VARIABLE NAME

DESCRIPTION

UNITS

nc{'yymmddhh'}

time

[UTC]

nc{'Jdd'}

Julian day 1997

[decimal day]

nc{'sigma'}

normalized pressure height, full levels

[UTC]

nc{'psurf'}

surface pressure

[Pa]

nc{'u'}

zonal wind component

[m/s]

nc{'v'}

meridional wind component

[m/s]

nc{'T'}

temperature

[K]

nc{'qv'}

specific humidity

[kg/kg]

nc{'omega'}

vertical velocity in pressure coordinates

[Pa/s]

nc{'dTdt-adiabatic'}

total adiabatic T tendency (*1)

[K/s]

nc{'dqdt-adiabatic'}

total adiabatic moisture tendency (*1)

[s^-1]

nc{'dudt-adiabatic'}

total adiabatic u tendency (*1)

[m/s^2]

nc{'dvdt-adiabatic'}

total adiabatic v tendency (*1)

[m/s^2]

(*1)
 

 

The file EC_tend.nc can be downloaded by anonymous ftp: ftp eos.atmos.washington.edu, directory pub/roode (netCDF, 26.9 Mb)

 

Requested acknowledgements
 
'We thank Christian Jakob and his coworkers at ECMWF for producing the ECMWF column dataset for SHEBA.'

 

References
 
Bretherton, C. S., S. R. de Roode, C. Jakob, E. L Andreas, J. Intrieri, R. E. Moritz, and P. O. G. Persson, 2000: A comparison of the ECMWF forecast model with observations over the annual cycle at SHEBA. J. Geophys. Res., submitted 12/99, revised 5/00. Postscript version

Stephan de Roode (roode@phys.uu.nl)
Chris Bretherton (breth@atmos.washington.edu)

University of Washington
Dept of Atmospheric Sciences
Box 352640
Seattle, WA 98195-2640 USA