NCEP_GRB3D_SIG_6HFULL_194801

Name: NCEP_GRB3D_SIG_6HFULL_194801
Published: 2005-07-18
License: unrestricted

Kalnay, Eugenia

NCEP_GRB3D_SIG_6HFULL_194801

hdl:21.14106/6dc71114e110be455f5c3c75f657a1df00807884

Kalnay, Eugenia

Dataset

Summary: See summary of corresponding experiment.
Data are converted to 16bit. Gridded data on sigma surfaces include: rel. vorticity, divergence, temperature, specific humidity, horizontal winds, surface pressure, geopotential height. This data is available on the 28 model sigma levels every 6 hours.-- exp.summary: The NCEP/NCAR Reanalysis Project is an effort to reanalyze historical data using state-of-the-art models. The reanalysis is done at NCEP (formerly NMC) using T62 (209 km) global spectral model of 28 vertical levels. This is the same model used in the assimilation system, as implemented in the NCEP operational system in December 1994. The model has 5 levels in the boundary layer and about 7 levels above 100 hPa. The lowest model level is about 5 hPa from the surface, and the top level is at about 3 hPa. This vertical structure was chosen so that the boundary layer is reasonably well resolved and the stratospheric analysis at 10 hPa isnot much affected by the top boundary conditions. The details of the model dynamics and physics are described in Development Division (1988), Kanamitsu (1989), and Kanamitsu et al(1991). The model includes parameterizations of all major physical processes, i.e., convection, large scale precipitation, shallow convection, gravity wave drag, radiation with diurnal cycle and interaction with clouds, boundary layer physics, an interactive surface hydrology, and vertical and horizontal diffusion processes. See http://www.scd.ucar.edu/dss/
Project: NCEP (NCEP Re-Analysis Project)
Location(s): World
Spatial Coverage: Longitude 0 to 360 Latitude -90 to 90 Altitude: 1. sig to 0. sig
Temporal Coverage: 1948-01-01 to 1948-01-31 (calendrical)
Use constraints: unrestricted
Data Catalog: World Data Center for Climate
Access constraints: unrestricted
Size: 744.29 MiB (780447072 Byte)
Format: GRIB
Status: completely archived
Creation Date: 2005-07-18
Download Permission: Please login to check permission and download options

Cite as: [ Derived from parent entry - See data hierarchy tab ]
Kalnay, Eugenia (2001). NCEP reanalysis (Original data files converted to 16 bit). World Data Center for Climate (WDCC) at DKRZ. https://hdl.handle.net/21.14106/0351c73c00e591adad8ea8aab5b2efe5576ab454

BibTeX RIS

Accuracy report

Data are not checked.-- exp: assimilated data

Description: Data are not checked.-- exp: assimilated data

Variable	Code	Aggregation	Unit
air_pressure CF	CICEP (NCEP: 142)	6hr	Pa
air_pressure_x_gradient_of_log	LPSX (NCEP: 181)	6hr	m-1
air_pressure_y_gradient_of_log	LPSY (NCEP: 182)	6hr	m-1
air_temperature CF	TMP (NCEP: 11)	6hr	K
atmosphere_relative_vorticity CF	RELV (NCEP: 43)	6hr	s-1
divergence_of_wind CF	RELD (NCEP: 44)	6hr	s-1
geopotential CF	n/a (NCEP: 742)	6hr	gpm
specific_humidity CF	SPFH (NCEP: 51)	6hr	kg kg-1
x-gradient of height	HGTX (NCEP: 183)	6hr	m m-1
x_wind CF	n/a (NCEP: 332)	6hr	m s-1
y-gradient of height	HGTY (NCEP: 184)	6hr	m m-1
y_wind CF	n/a (NCEP: 342)	6hr	m s-1

Contact type	Person	ORCID	Organization
Investigator	Dennis Joseph	-	National Centers for Environmental Prediction
Technical	Peter Lenzen	-	Max-Planck-Institut fuer Meteorologie (MD)
Metadata	Dr. Hans Luthardt	-	Max-Planck-Institut fuer Meteorologie (MD)

Parent

NCEP reanalysis (Original data files converted to 16 bit)

Details

Parent project(s)

NCEP Re-Analysis Project

[Entry acronym: NCEP_GRB3D_SIG_6HFULL_194801] [Entry id: 2060819]