NCEP/NCAR Reanalysis Monthly Means and Other Derived Variables
We have transitioned the data files from netCDF3 to netCDF4-classic format on Monday Oct 20th, 2014.
Brief Description:
- NCEP/NCAR Reanalysis Monthly Means and Other Derived Variables..
Temporal Coverage:
- Daily and Monthly Values for 1948/01 - present.
- Long term monthly means, derived from data for years 1981 - 2010.
Spatial Coverage:
- T62 Gaussian grid (192x94)
- 88.542N - 88.542S, 0E - 358.125E
Levels:
- Surface or near the surface
Update Schedule:
- Monthly
- All variables are available except net longwave radiation and net shortwave radiation, which are updated sporadically
Download/Plot Data: (FTP Access)
These variables are forecasts valid 6 hours after the reference time. Archive parameters: File names are generally composed of variable abbreviations, averaging period and statistic. Averaging periods include "day" and "mon". Statistics include "mean", "ltm"(long-term mean), "inter.std" (interannual standard deviation). (variable).(averaging period).(statistic).nc
Variable | Statistic | Level | Download File | Create Plot/Subset |
---|---|---|---|---|
Air Temperature at 2 meters | Monthly Mean | 2m | air.2m.mon.mean.nc | ![]() |
Air Temperature at 2 meters | Monthly Long Term Mean | 2m | air.2m.mon.ltm.nc | ![]() |
Air Temperature at 2 meters | Daily Long Term Mean | 2m | air.2m.day.1981-2010.ltm.nc | ![]() |
Air Temperature at 2 meters | 4X Daily Long Term Mean | 2m | air.2m.4Xday.1981-2010.ltm.nc | ![]() |
Ice Concentration | Monthly Mean | Surface | icec.sfc.mon.mean.nc | ![]() |
Ice Concentration | Monthly Long Term Mean | Surface | icec.sfc.mon.ltm.nc | ![]() |
Ice Concentration | Daily Long Term Mean | Surface | icec.sfc.day.1981-2010.ltm.nc | ![]() |
Ice Concentration | 4X Daily Long Term Mean | Surface | icec.sfc.4Xday.1981-2010.ltm.nc | ![]() |
Potential evaporation rate | Monthly Mean | Surface | pevpr.sfc.mon.mean.nc | ![]() |
Potential evaporation rate | Monthly Long Term Mean | Surface | pevpr.sfc.mon.ltm.nc | ![]() |
Potential evaporation rate | Daily Long Term Mean | Surface | pevpr.sfc.day.1981-2010.ltm.nc | ![]() |
Potential evaporation rate | 4X Daily Long Term Mean | Surface | pevpr.sfc.4Xday.1981-2010.ltm.nc | ![]() |
Water runoff | Monthly Mean | Surface | runof.sfc.mon.mean.nc | ![]() |
Water runoff | Monthly Long Term Mean | Surface | runof.sfc.mon.ltm.nc | ![]() |
Water runoff | Daily Long Term Mean | Surface | runof.sfc.day.1981-2010.ltm.nc | ![]() |
Water runoff | 4X Daily Long Term Mean | Surface | runof.sfc.4Xday.1981-2010.ltm.nc | ![]() |
Specific humidity at 2 meters | Monthly Mean | 2m | shum.2m.mon.mean.nc | ![]() |
Specific humidity at 2 meters | Monthly long Term Mean | 2m | shum.2m.mon.ltm.nc | ![]() |
Specific humidity at 2 meters | Daily long Term Mean | 2m | shum.2m.day.1981-2010.ltm.nc | ![]() |
4X Specific humidity at 2 meters | Daily long Term Mean | 2m | shum.2m.4Xday.1981-2010.ltm.nc | ![]() |
Volumetric soil moisture (0-10 cm) | Monthly Mean | 0-10 cm | soilw.0-10cm.mon.mean.nc | ![]() |
Volumetric soil moisture (0-10 cm) | Monthly Long Term Mean | 0-10 cm | soilw.0-10cm.mon.ltm.nc | ![]() |
Volumetric soil moisture (0-10 cm) | Daily Long Term Mean | 0-10 cm | soilw.0-10cm.day.1981-2010.ltm.nc | ![]() |
Volumetric soil moisture (0-10 cm) | 4X Daily Long Term Mean | 0-10 cm | soilw.0-10cm.4Xday.1981-2010.ltm.nc | ![]() |
Volumetric soil moisture (10-200cm) | Monthly Mean (ltm) | 10-200cm | soilw.10-200cm.mon.mean.nc | ![]() |
Volumetric soil moisture (10-200cm) | Monthly Long Term Mean | 10-200cm | soilw.10-200cm.mon.ltm.nc | ![]() |
Volumetric soil moisture (10-200cm) | Daily Long Term Mean | 10-200cm | soilw.10-200cm.day.1981-2010.ltm.nc | ![]() |
Volumetric soil moisture (10-200cm) | 4X Daily Long Term Mean | 10-200cm | soilw.10-200cm.4Xday.1981-2010.ltm.nc | ![]() |
Skin Temperature | Monthly Mean | Surface | skt.sfc.mon.mean.nc | ![]() |
Skin Temperature | Monthly Long Term Mean | Surface | skt.sfc.mon.ltm.nc | ![]() |
Skin Temperature | Daily Long Term Mean | Surface | skt.sfc.day.1981-2010.ltm.nc | ![]() |
Skin Temperature | 4X Daily Long Term Mean | Surface | skt.sfc.4Xday.1981-2010.ltm.nc | ![]() |
Temperature | Monthly Mean | 0-10cm | tmp.0-10cm.mon.mean.nc | ![]() |
Temperature | Monthly Long Term Mean | 0-10cm | tmp.0-10cm.mon.ltm.nc | ![]() |
Temperature | Daily Long Term Mean | 0-10cm | tmp.0-10cm.day.1981-2010.ltm.nc | ![]() |
Temperature | 4X Daily Long Term Mean | 0-10cm | tmp.0-10cm.4Xday.1981-2010.ltm.nc | ![]() |
Temperature | Monthly Mean | 10-200cm | tmp.10-200cm.mon.mean.nc | ![]() |
Temperature | Monthly Long Term Mean | 10-200cm | tmp.10-200cm.mon.ltm.nc | ![]() |
Temperature | Daily Long Term Mean | 10-200cm | tmp.10-200cm.day.1981-2010.ltm.nc | ![]() |
Temperature | 4X Daily Long Term Mean | 10-200cm | tmp.10-200cm.4Xday.1981-2010.ltm.nc | ![]() |
Temperature | Monthly Mean | 300cm | tmp.300cm.mon.mean.nc | ![]() |
Temperature | Monthly Long Term Mean | 300cm | tmp.300cm.mon.ltm.nc | ![]() |
Temperature | Daily Long Term Mean | 300cm | tmp.300cm.day.1981-2010.ltm.nc | ![]() |
Temperature | 4X Daily Long Term Mean | 300cm | tmp.300cm.4Xday.1981-2010.ltm.nc | ![]() |
Maximum Temperature | Monthly Mean | 2m | tmax.2m.mon.mean.nc | ![]() |
Maximum Temperature | Monthly Long Term Mean | 2m | tmax.2m.mon.ltm.nc | ![]() |
Maximum Temperature | Daily Long Term Mean | 2m | tmax.2m.day.1981-2010.ltm.nc | ![]() |
Maximum Temperature | 4X Daily Long Term Mean | 2m | tmax.2m.4Xday.1981-2010.ltm.nc | ![]() |
Minimum Temperature | Monthly Mean | 2m | tmin.2m.mon.mean.nc | ![]() |
Minimum Temperature | Monthly Long Term Mean | 2m | tmin.2m.mon.ltm.nc | ![]() |
Minimum Temperature | Daily Long Term Mean | 2m | tmin.2m.day.1981-2010.ltm.nc | ![]() |
Minimum Temperature | 4X Daily Long Term Mean | 2m | tmin.2m.4Xday.1981-2010.ltm.nc | ![]() |
U-wind at 10 m | Monthly Mean | 10m | uwnd.10m.mon.mean.nc | ![]() |
U-wind at 10 m | Monthly Long Term Mean | 10m | uwnd.10m.mon.ltm.nc | ![]() |
U-wind at 10 m | Daily Long Term Mean | 10m | uwnd.10m.day.1981-2010.ltm.nc | ![]() |
U-wind at 10 m | 4X Daily Long Term Mean | 10m | uwnd.10m.4Xday.1981-2010.ltm.nc | ![]() |
V-wind at 10 m | Monthly Mean | 10m | vwnd.10m.mon.mean.nc | ![]() |
V-wind at 10 m | Monthly Long Term Mean | 10m | vwnd.10m.mon.ltm.nc | ![]() |
V-wind at 10 m | Daily Long Term Mean | 10m | vwnd.10m.day.1981-2010.ltm.nc | ![]() |
V-wind at 10 m | 4X Daily Long Term Mean | 10m | vwnd.10m.4Xday.1981-2010.ltm.nc | ![]() |
These variables are 6 hour averages starting at the reference time.
Variable | Statistic | Level | Download File | Create Plot/Subset |
---|---|---|---|---|
Cloud forcing net longwave flux | Monthly Mean | Surface | cfnlf.sfc.mon.mean.nc | ![]() |
Cloud forcing net longwave flux | Monthly Long Term Mean | Surface | cfnlf.sfc.mon.ltm.nc | ![]() |
Cloud forcing net longwave flux | Daily Long Term Mean | Surface | cfnlf.sfc.day.ltm.nc | ![]() |
Cloud forcing net longwave flux | 4X Daily Long Term Mean | Surface | cfnlf.sfc.4Xday.ltm.nc | ![]() |
Cloud forcing net solar flux | Monthly Mean | Surface | cfnsf.sfc.mon.mean.nc | ![]() |
Cloud forcing net solar flux | Monthly Long Term Mean | Surface | cfnsf.sfc.mon.ltm.nc | ![]() |
Cloud forcing net solar flux | Daily Long Term Mean | Surface | cfnsf.sfc.day.ltm.nc | ![]() |
Cloud forcing net solar flux | 4X Daily Long Term Mean | Surface | cfnsf.sfc.4Xday.ltm.nc | ![]() |
Convective Precipitation rate | Monthly Mean | Surface | cprat.sfc.mon.mean.nc | ![]() |
Convective Precipitation rate | Long Term Monthly Mean | Surface | cprat.sfc.mon.ltm.nc | ![]() |
Convective Precipitation rate | Daily Long Term Mean | Surface | cprat.sfc.day.ltm.nc | ![]() |
Convective Precipitation rate | 4X Daily Long Term Mean | Surface | cprat.sfc.4Xday.ltm.nc | ![]() |
Clear sky downward longwave flux | Monthly Mean | Surface | csdlf.sfc.mon.mean.nc | ![]() |
Clear sky downward longwave flux | Monthly Long Term Mean | Surface | csdlf.sfc.mon.ltm.nc | ![]() |
Clear sky downward longwave flux | Daily Long Term Mean | Surface | csdlf.sfc.day.ltm.nc | ![]() |
Clear sky downward longwave flux | 4X Daily Long Term Mean | Surface | csdlf.sfc.4Xday.ltm.nc | ![]() |
Clear sky downward solar flux | Monthly Mean | Surface | csdsf.sfc.mon.mean.nc | ![]() |
Clear sky downward solar flux | Monthly Long Term Mean | Surface | csdsf.sfc.mon.ltm.nc | ![]() |
Clear sky downward solar flux | Daily Long Term Mean | Surface | csdsf.sfc.day.ltm.nc | ![]() |
Clear sky downward solar flux | 4 Daily Long Term Mean | Surface | csdsf.sfc.4Xday.ltm.nc | ![]() |
Downward longwave radiation flux | Monthly Mean | Surface | dlwrf.sfc.mon.mean.nc | ![]() |
Downward longwave radiation flux | Monthly Long Term Mean | Surface | dlwrf.sfc.mon.ltm.nc | ![]() |
Downward longwave radiation flux | Daily Long Term Mean | Surface | dlwrf.sfc.day.ltm.nc | ![]() |
Downward longwave radiation flux | 4X Daily Long Term Mean | Surface | dlwrf.sfc.4Xday.ltm.nc | ![]() |
Downward shortwave radiation flux | Monthly Mean | Surface | dswrf.sfc.mon.mean.nc | ![]() |
Downward shortwave radiation flux | Monthly Long Term Mean | Surface | dswrf.sfc.mon.ltm.nc | ![]() |
Downward shortwave radiation flux | Daily Long Term Mean | Surface | dswrf.sfc.day.1981-2010.ltm.nc | ![]() |
Downward shortwave radiation flux | 4X 4X Daily Long Term Mean | Surface | dswrf.sfc.4Xday.1981-2010.ltm.nc | ![]() |
Ground heat flux | Monthly Mean | Surface | gflux.sfc.mon.mean.nc | ![]() |
Ground heat flux | Monthly Long Term Mean | Surface | gflux.sfc.mon.ltm.nc | ![]() |
Ground heat flux | Daily Long Term Mean | Surface | gflux.sfc.day.1981-2010.ltm.nc | ![]() |
Ground heat flux | 4X Daily Long Term Mean | Surface | gflux.sfc.4Xday.1981-2010.ltm.nc | ![]() |
Latent heat net flux | Monthly Mean | Surface | lhtfl.sfc.mon.mean.nc | ![]() |
Latent heat net flux | Monthly Long Term Mean | Surface | lhtfl.sfc.mon.ltm.nc | ![]() |
Latent heat net flux | Daily Long Term Mean | Surface | lhtfl.sfc.day.1981-2010.ltm.nc | ![]() |
Latent heat net flux | 4X Daily Long Term Mean | Surface | lhtfl.sfc.4Xday.1981-2010.ltm.nc | ![]() |
Near IR beam downward solar flux | Monthly Mean | Surface | nbdsf.sfc.mon.mean.nc | ![]() |
Near IR beam downward solar flux | Monthly Long Term Mean | Surface | nbdsf.sfc.mon.ltm.nc | ![]() |
Near IR beam downward solar flux | Daily Long Term Mean | Surface | nbdsf.sfc.day.1981-2010.ltm.nc | ![]() |
Near IR beam downward solar flux | 4X Daily Long Term Mean | Surface | nbdsf.sfc.4Xday.1981-2010.ltm.nc | ![]() |
Near IR Beam Downward Solar Flux | Monthly Mean | Surface | nbdsf.sfc.mon.mean.nc | ![]() |
Near IR Beam Downward Solar Flux | Monthly Long Term Mean | Surface | nbdsf.sfc.mon.ltm.nc | ![]() |
Near IR Beam Downward Solar Flux | Daily Long Term Mean | Surface | nbdsf.sfc.day.1981-2010.ltm.nc | ![]() |
Near IR Beam Downward Solar Flux | 4X Daily Long Term Mean | Surface | nbdsf.sfc.4Xday.1981-2010.ltm.nc | ![]() |
Near IR Diffuse Downward Solar Flux | Monthly Mean | Surface | nddsf.sfc.mon.mean.nc | ![]() |
Near IR Diffuse Downward Solar Flux | Monthly Long Term Mean | Surface | nddsf.sfc.mon.ltm.nc | ![]() |
Near IR Diffuse Downward Solar Flux | Daily Long Term Mean | Surface | nddsf.sfc.day.1981-2010.ltm.nc | ![]() |
Near IR Diffuse Downward Solar Flux | 4X Daily Long Term Mean | Surface | nddsf.sfc.4Xday.1981-2010.ltm.nc | ![]() |
Net longwave radiation | Monthly Mean | Surface | nlwrs.sfc.mon.mean.nc | ![]() |
Net longwave radiation | Monthly Long Term Mean | Surface | nlwrs.sfc.mon.ltm.nc | ![]() |
Net longwave radiation | Daily Long Term Mean | Surface | nlwrs.sfc.day.1981-2010.ltm.nc | ![]() |
Net shortwave radiation | Monthly Mean | Surface | nswrs.sfc.mon.mean.nc | ![]() |
Net shortwave radiation | Monthly Long Term Mean | Surface | nswrs.sfc.mon.ltm.nc | ![]() |
Net shortwave radiation | Daily Long Term Mean | Surface | nswrs.sfc.day.1981-2010.ltm.nc | ![]() |
Precipitation rate | Monthly Mean | Surface | prate.sfc.mon.mean.nc | ![]() |
Precipitation rate | Monthly Long Term Mean | Surface | prate.sfc.mon.ltm.nc | ![]() |
Precipitation rate | Daily Long Term Mean | Surface | prate.sfc.day.1981-2010.ltm.nc | ![]() |
Precipitation rate | 4X Daily Long Term Mean | Surface | prate.sfc.4Xday.1981-2010.ltm.nc | ![]() |
Pressure | Monthly Mean | Surface | pres.sfc.mon.mean.nc | ![]() |
Pressure | Monthly Long Term Mean | Surface | pres.sfc.mon.ltm.nc | ![]() |
Pressure | Daily Long Term Mean | Surface | pres.sfc.day.1981-2010.ltm.nc | ![]() |
Pressure | 4X Daily Long Term Mean | Surface | pres.sfc.4Xday.1981-2010.ltm.nc | ![]() |
Sensible heat net flux | Monthly Mean | Surface | shtfl.sfc.mon.mean.nc | ![]() |
Sensible heat net flux | Monthly Long Term Mean | Surface | shtfl.sfc.mon.ltm.nc | ![]() |
Sensible heat net flux | Daily Long Term Mean | Surface | shtfl.sfc.day.1981-2010.ltm.nc | ![]() |
Sensible heat net flux | 4X Daily Long Term Mean | Surface | shtfl.sfc.4Xday.1981-2010.ltm.nc | ![]() |
Surface Roughness | Monthly Mean | Surface | sfcr.sfc.mon.mean.nc | ![]() |
Surface Roughness | Monthly Long Term Mean | Surface | sfcr.sfc.mon.ltm.nc | ![]() |
Surface Roughness | Daily Long Term Mean | Surface | sfcr.sfc.day.1981-2010.ltm.nc | ![]() |
Surface Roughness | 4X Daily Long Term Mean | Surface | sfcr.sfc.4Xday.1981-2010.ltm.nc | ![]() |
Upward Solar Radiation Flux | Monthly Mean | Surface | uswrf.sfc.mon.mean.nc | ![]() |
Upward Solar Radiation Flux | Monthly Long Term Mean | Surface | uswrf.sfc.mon.ltm.nc | ![]() |
Upward Solar Radiation Flux | Daily Long Term Mean | Surface | uswrf.sfc.day.1981-2010.ltm.nc | ![]() |
Upward Solar Radiation Flux | 4X Daily Long Term Mean | Surface | uswrf.sfc.4Xday.1981-2010.ltm.nc | ![]() |
Zonal component of momentum flux | Monthly Mean | Surface | uflx.sfc.mon.mean.nc | ![]() |
Zonal component of momentum flux | Monthly Long Term Mean | Surface | uflx.sfc.mon.ltm.nc | ![]() |
Zonal component of momentum flux | Daily Long Term Mean | Surface | uflx.sfc.day.1981-2010.ltm.nc | ![]() |
Zonal component of momentum flux | 4X Daily Long Term Mean | Surface | uflx.sfc.4Xday.1981-2010.ltm.nc | ![]() |
Zonal gravity wave stress | Monthly Mean | Surface | ugwd.sfc.mon.mean.nc | ![]() |
Zonal gravity wave stress | Monthly Long Term Mean | Surface | ugwd.sfc.mon.ltm.nc | ![]() |
Zonal gravity wave stress | Daily Long Term Mean | Surface | ugwd.sfc.day.1981-2010.ltm.nc | ![]() |
Zonal gravity wave stress | 4X Daily Long Term Mean | Surface | ugwd.sfc.4Xday.1981-2010.ltm.nc | ![]() |
Upward longwave radiation flux | Monthly Mean | Surface | ulwrf.sfc.mon.mean.nc | ![]() |
Upward longwave radiation flux | Monthly Long Term Mean | Surface | ulwrf.sfc.mon.ltm.nc | ![]() |
Upward longwave radiation flux | Daily Long Term Mean | Surface | ulwrf.sfc.day.1981-2010.ltm.nc | ![]() |
Upward longwave radiation flux | 4X Daily Long Term Mean | Surface | ulwrf.sfc.4Xday.1981-2010.ltm.nc | ![]() |
Visible Beam Downward Solar Flux | Monthly Mean | Surface | vbdsf.sfc.mon.mean.nc | ![]() |
Visible Beam Downward Solar Flux | Monthly Long Term Mean | Surface | vbdsf.sfc.mon.ltm.nc | ![]() |
Visible Beam Downward Solar Flux | Daily Long Term Mean | Surface | vbdsf.sfc.day.1981-2010.ltm.nc | ![]() |
Visible Beam Downward Solar Flux | 4X Daily Long Term Mean | Surface | vbdsf.sfc.4Xday.1981-2010.ltm.nc | ![]() |
Visible Diffuse Downward Solar Flux | Monthly Mean | Surface | vddsf.sfc.mon.mean.nc | ![]() |
Visible Diffuse Downward Solar Flux | Monthly Long Term Mean | Surface | vddsf.sfc.mon.ltm.nc | ![]() |
Visible Diffuse Downward Solar Flux | Daily Long Term Mean | Surface | vddsf.sfc.day.1981-2010.ltm.nc | ![]() |
Visible Diffuse Downward Solar Flux | 4X Daily Long Term Mean | Surface | vddsf.sfc.4Xday.1981-2010.ltm.nc | ![]() |
Meridional component of momemtum flux | Monthly Mean | Surface | vflx.sfc.mon.mean.nc | ![]() |
Meridional component of momemtum flux | Monthly Long Term Mean | Surface | vflx.sfc.mon.ltm.nc | ![]() |
Meridional component of momemtum flux | Daily Long Term Mean | Surface | vflx.sfc.day.1981-2010.ltm.nc | ![]() |
Meridional component of momemtum flux | 4X Daily Long Term Mean | Surface | vflx.sfc.4Xday.1981-2010.ltm.nc | ![]() |
Meridional gravity wave stress | Monthly Mean | Surface | vgwd.sfc.mon.mean.nc | ![]() |
Meridional gravity wave stress | Monthly Long Term Mean | Surface | vgwd.sfc.mon.ltm.nc | ![]() |
Meridional gravity wave stress | Daily Long Term Mean | Surface | vgwd.sfc.day.1981-2010.ltm.nc | ![]() |
Meridional gravity wave stress | 4X Daily Long Term Mean | Surface | vgwd.sfc.4Xday.1981-2010.ltm.nc | ![]() |
Water Equiv. of Accum. Snow Depth | Monthly Mean | Surface | weasd.sfc.mon.mean.nc | ![]() |
Water Equiv. of Accum. Snow Depth | Monthly Long Term Mean | Surface | weasd.sfc.mon.ltm.nc | ![]() |
Water Equiv. of Accum. Snow Depth | Daily Long Term Mean | Surface | weasd.sfc.day.1981-2010.ltm.nc | ![]() |
Water Equiv. of Accum. Snow Depth | 4X Daily Long Term Mean | Surface | weasd.sfc.4Xday.1981-2010.ltm.nc | ![]() |
Land-sea mask | time invariant | Surface | lsmask.19294.nc | ![]() |
Usage Restrictions:
- None
Detailed Description:
- The NCEP/NCAR Reanalysis project is using a state-of-the-art analysis/forecast system to perform data assimilation using past data from 1948 to the present. A subset of this data has been processed to create monthly means of a subset of the original data. There are also files containing data from variables derived from the reanalysis and some other statistics. Information about the 4 times and daily data is available, as well.
- A discussion of the sign convention for radiative fluxis is available.
Caveats:
- Please read the problem list before using the data.
- The netCDF data files for the NCEP/NCAR Reanalysis variable
PEVPR (files named pevpr.sfc.gauss.YY.nc or pevpr.sfc.gauss.YYYY.nc) may
have incorrect units for the pevpr (Potential Evaporation Rate) variable.
The correct units are watts per meter squared (W/m^2).
§ The skt.sfc files contain skin temperature as described in the March, 1996 BAMS article. As such, over land and sea ice, the temperature is a prognostic variable. Over open water, the skin temperature is fixed at its initial value; i.e., the Reynolds SST as seen by the model. The Reynolds' SST analyses were done weekly and the reconstructed SST done monthly. The analyses were linearly interpolated to daily values which were used for all four analyses.
The following variables are 6 hour forecast values valid 6 hours after the reference time: air, air.2m, icec, pres, runof, sfcr, shum.2m, soilw.0-10cm, soilw.10-200cm, tmax.2m, tmin.2m, tmp.0-10cm, tmp.10-200cm, tmp.300cm, uwnd.10m, vwnd.10m, weasd, land
The following variables are six hour averages for the period of the reference time plus six hours: cfnlf, cfnsf, cprat, csdlf, csdsf, dlwrf, dswrf, gflux, lhtfl, nbdsf, nddsf, prate, shtfl, uflx, ugwd, ulwrf, uswrf, vbdsf, vddsf, vflx, vgwd, nlwrs, nswrs
Related File Naming & Structure Information:
File Names:
- The naming convention of the files is generallyvariable.averagingperiod.statistic.ncwherevariable is netcdf variable name
averagingperiod is time period over which data is averaged (day,mon)
statistic is type of data (mean, long-term mean(ltm), etc)Some files have the level included with the variable names
e.g. air2m.mon.mean.nc
Here the file should be read with the variable of 'air'
OpenDap File Names:
- /thredds/dodsC/Datasets/ncep.reanalysis.derived/surface_flux/variable.averagingperiod.statistic.nc.
Jump to: Other General Information
- All data are stored in netCDF files
- The data are divided by variable and statistic
- There are 60 files currently, ranging in size from 73 Kbytes to 44.7 Mbytes
- The total disk space consumed by this category is currently 1.1 Gbytes
- var.time.stat.nc (In directory: /Datasets/ncep.reanalysis.derived/surface_flux/)
Dataset Format and Size:
- PSL standard NetCDF 311 Mbyte file for each monthly file (packed).
- PSL standard NetCDF 30 Mbyte file for each long term mean file (packed).
Missing Data:
- Missing data is flagged with a value of -9.96921e+36f.
Citation:
- For dataset source, please cite:Kalnay et al.,The NCEP/NCAR 40-year reanalysis project, Bull. Amer. Meteor. Soc., 77, 437-470, 1996.
- Please note: If you acquire NCEP Reanalysis Derived data products from PSL, we ask that you acknowledge us in your use of the data. This may be done by including text such as NCEP Reanalysis Derived data provided by the NOAA/OAR/ESRL PSL, Boulder, Colorado, USA, from their Web site at / in any documents or publications using these data. We would also appreciate receiving a copy of the relevant publications. This will help PSL to justify keeping the NCEP Reanalysis Derived data set freely available online in the future. Thank you!
References:
- March, 1996 BAMS
Original Source:
- NOAA National Center for Environmental Prediction
Contact:
-
Physical Sciences Laboratory: Data Management
NOAA/ESRL/PSL
325 Broadway
Boulder, CO 80305-3328
psl.data@noaa.gov
- Climate Datasets: By Category
- All
- Sub-daily
- Daily
- Monthly
- Surface
- Temperature
- SST
- Precipitation
- Land
- Ocean
- Multi-level
- Radiation
- Arctic
- Reanalysis
- Climate Indices
- Search Datasets
- 20th Century Reanalysis
- Popular Datasets
- ICOADS
- NCEP/NCAR Reanalysis
- N. American Regional Reanalysis
- Plotting & Analysis
- Basic Plots
- Analysis Tools
- Access
- FTP Access
- OPeNDAP Access
- Software Resources
- Complete Data Resources
- About NetCDF
- Reading Data in NetCDF Format