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Instructions
Why are the surface temperatures too cold
Background Information
Referencing Plots
NCEP operational data at PSD
Related Plot/Analysis
Plot daily NCEP/NCAR Reanalysis composites
Plot 6-hourly composites
Plot monthly NCEP/NCAR Reanalysis composites
NCEP Reanalysis Atlas
PSD's Complete NCEP Reanalysis Page
Feedback
Feedback (good, bad, suggested enhancements) is always welcome! Mail to esrl.psd at (
esrl.psd.data@noaa.gov
). If you find this page useful for teaching or research, I would especially like to know.
Atmospheric Variables Plotting Page
IMPORTANT: The climatology for air temperatures was in error and some anomalies (summer-fall) were incorrect. We have replaced the climatology files.
This page plots the operational NCEP analysis. The model used to compute these values changes through time so it is not as appropriate for anomalies or examinging climate. For most purposes, using the NCEP/NCAR Reanalysis with its consistent model and longer climatology is preferred. That page can be found at
http://www.esrl.noaa.gov/psd/data/composites/day/
. The variables RH and air temperature have been removed as the climatology is very bad and the older years do not match the reanalysis very well. We suggest users use the daily composite page or look at the latest FNL plots from the
maproom
.
This form allows you to plot the NCEP daily analysis data and OLR. To plot daily SST, please to go
Daily Composites
or for monthly/seasonal SST, go to
Seasonal Composites
. Data coverage is from
1980
to the present. You have the option of averaging the last
n
days. Climatology is based on a 5 day running mean of the annual cycle (based on 1979-1995). Anomalies are formed by subtracting this daily climatology. Note that no smoothing is done in the case of vector wind anomalies and climatologies.
Enter
EITHER
the first date and last date
OR
the first date and number of days
OR
the last date and number of days.
First date:(
yyyymmdd
)
:
to
Last date:
and/or enter the number of days to average:
Which variable?
Geopotential Height
Eddy Height
Zonal Wind
Meridional Wind
Vector Winds
Precipitable Water
Sea Level Pressure
Surface Pressure
Tropopause Temperature
Tropopause Pressure
OLR
Analysis level?
1000mb
850mb
700mb
500mb
400mb
300mb
250mb
200mb
150mb
100mb
70mb
50mb
Surface/Other
Plot type?
Mean
Anomaly
Climatology
Map Domain:
If you wish to select a specific lat/lon region, you must choose
Custom
from the map domain menu, and complete the lat, lon, and projection selections that immediately follow.
Northern Hemisphere
USA
ALL
Afghanistan
Tropics
Indian Pacific
4-Corner Region Western US
Custom
If CUSTOM selected,
choose projection:
Cylindrical Equidistant
Northern Hemisphere Polar Stereographic
Southern Hemisphere Polar Stereographic
Lowest lat (-90 to 90)
Highest lat (-90 to 90)
Western-most longitude (0 to 360)
Eastern-most longitude (0 to 720)
Note: eastern longitude must be greater than western longitude
Color?
Color
Black and White
Shading Type:
Shaded
Shaded w/overlying Contours
Contours (Black and White Only)
Override default contour interval?
New interval:
Range: low
high
Scale Plot Size (%):
(default is 100%)