COREv2.0
========

RAW DATA STREAMS:

	1)  NCEP/NCAR Reanalysis (v1), 6-hourly on T62 grid:
		a. dn10	(10m air density, kg/m^3)
		b. q_10 (10m specific humidity, kg/kg)
		c. slp_ (0m sea level pressure, Pa)
		d. t_10 (10m air temperature, Kelvin)
 		e. u_10 (10m U wind, m/s)
		f. v_10 (10m V wind, m/s)

	2)  GCGCS precipitation, monthly on T62 grid:
	    (blend of GPCP, CMAP, and Serreze products, see
	     tech note)
		a. prec (precipitation, mm/day) 

	3)  GISS, ISCCP-FD radiation, daily on T62 grid:
		a. swdn (downwelling shortwave flux, W/m^2)
		a. swup (upwelling shortwave flux, W/m^2)
		a. lwdn (downwelling longwave flux, W/m^2)



LARGE AND YEAGER CORRECTIONS: 

At NCAR: the corrections are applied to the uncorrected data sets
during the integration of an ocean-ice model.  NCAR uses the file in
datm_physTN460.F90 using correction factors in
tn460nyf.correction_factors.T62.121007.nc

At GFDL: experiments are forced with the corrected datasets.  

	1)  correction to NCEP wind magnitude and direction
	    based on 2000-2004 QSCAT observations.

	2)  monthly correction to NCEP Arctic t_10 based on Sheba	
	    measurements.

	3)  seasonal floor set on NCEP Antarctic t_10 based on 
	    station observations (F. Bryan).

	4)  correction to NCEP specific humidity based on SOC climatology

	5)  satellite-based precipitation enhanced by ~14%

	6)  swnet computed using latitude-dependent climatological albedo

	7)  shortwave fluxes reduced by 5% between 50S and 30N

	8)  Arctic longwave radiation reduced by constant offset (north of 60N)