Web-based Reanalysis Intercomparison Tool: Monthly Maps

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Plot monthly maps or vertical cross-sections from different reanalysis datasets as well as differences between reanalyses. Means, anomalies and climatologies are available.
20CRV3 is now available from 1806.

Dataset 1 20th Century Reanalysis V2 20th Century Reanalysis V2c 20th Century Reanalysis V3 CERA-20C CFSR ERA20C ERA5 ERA-Interim JRA-55 JRA-55 Screen MERRA MERRA-2 NCEP/NCAR R1 NCEP/DOE R2 Berkeley C-LSAT CRU_TS CRUTEM4 CRUTEM5 CWv2/HadCRUT GHCN CAMS GISTEMP HadCRUT4 HadCRUT5 analysis HadCRUT5 non-infilled HadNMAT2 JMA Temperature NOAA Global Temperature NOAA Global Temperature Interim U Delaware V5.01 UAHNMAT CLASSnmat CMST COBE COBE-SST 2 HADISST NOAA ERSST V3b NOAA ERSST V4 NOAA ERSST V5 NOAA OI SST CHIRPS CMAP(STD) GPCP V2.3 GPCC NOAA Precipitation Recon. (Land) NOAA Precipitation Recon. Gridded Monthly Sea Ice Extent and Concentration, 1850 Onwards HADISST2.2 DAI PDSI HadISDH HADSLP2 NASA NVAP SPI WASWind Dataset 2 none 20th Century Reanalysis V2 20th Century Reanalysis V2c 20th Century Reanalysis V3 CERA-20C CFSR ERA20C ERA5 ERA-Interim JRA-55 JRA-55 Screen MERRA MERRA-2 NCEP/NCAR R1 NCEP/DOE R2 Berkeley C-LSAT CRU_TS CRUTEM4 CRUTEM5 CWv2/HadCRUT GHCN CAMS GISTEMP HadCRUT4 HadCRUT5 analysis HadCRUT5 non-infilled HadNMAT2 JMA Temperature NOAA Global Temperature NOAA Global Temperature Interim U Delaware V5.01 UAHNMAT CLASSnmat CMST COBE COBE-SST 2 HADISST NOAA ERSST V3b NOAA ERSST V4 NOAA ERSST V5 NOAA OI SST CHIRPS CMAP(STD) GPCP V2.3 GPCC NOAA Precipitation Recon. (Land) NOAA Precipitation Recon. Gridded Monthly Sea Ice Extent and Concentration, 1850 Onwards HADISST2.2 DAI PDSI HadISDH HADSLP2 NASA NVAP SPI WASWind

Subtract a Dataset 2?

Variable Geopotential Height Zonal Wind Meridional Wind Relative Humidity Specific Humidity Omega Air Temperature 2m Air Temperature 2m Specific Humidity 2m Max Air Temperature 2m Min Air Temperature 10m Zonal Wind 10m Meridional Wind 10m Wind Speed Sea Level Pressure (SLP) Precipitable Water Precipitation Rate Evaporation Rate Sea Surface/Skin Temp Ice Concentration Outgoing Longwave Radiation Ozone SPI Bottom Temperature Water Equivalent of Snow Depth PDSI Level 1000mb 925mb 850mb 700mb 600mb 500mb 400mb 300mb 250mb 200mb 150mb 100mb 70mb 50mb 30mb 20mb 10mb

Enter years for Dataset 2 if a different set of dates from Dataset 1 (from 1 to 20): e.g. 1972. For seasons that span a year (e.g. DJF), please enter year of the LAST month.

OR
Enter year range if different from Dataset 1 (limit 50 years)
1st year range to last year of range

Variable statistic  Mean    Anomaly    Long Term Mean (climatology)

Plot Type  Map    Height/Latitude    Height/Longitude

Map Projection  Cylindrical Equidistant    Orthographic    Mercator    Mollweide    Robinson    Lambert Conformal  

For Orthographic: Center Lat: Center Lon:

Map Region Africa All Antarctica Asia Australia Custom Europe North America Northern Hemisphere Pacific Basin South America Southern Hemisphere Tropical Pacific USA(CONUS)

Lowest lat: (-90 to 90) Highest lat:

Western-most longitude (0 to 360): Eastern-most longitude:

CUSTOM projection Cylindrical Equidistant Northern Hemisphere Polar Stereographic Southern Hemisphere Polar Stereographic

Choose height range if Height/Latitude OR Height/Longitude:

Lower level 1000mb 925mb 850mb 700mb 600mb 500mb 400mb 300mb 250mb 200mb 150mb 100mb 70mb 50mb 30mb 20mb 10mb Upper level  10mb 20mb 30mb 50mb 70mb 100mb 150mb 250mb 300mb 400mb 500mb 600mb 700mb 850mb 925mb 1000mb

Colortable Red to Purple Rainbow: Default Red-Yellow_Green-Purple: testcmap BlueRedRed to Purple Rainbow Brown to Blue: GMT_drywet Orange to Purple: MPL_PuOr Green to Brown: OceanLakeLandSnow Blue-Purple-Brown: SVG_bhw3_22 Colorblindness Rainbow:cb_rainbow cmp_haxby Black and White Ocean

Color Color Black and white Shading: Shaded w/overlying contours Shaded Contour lines

Scale plot size (%)   Plot contour labels  No    Yes

Reverse colorbar  No    Yes

Contour or Cell fill  Contour    Cell

Override default contour interval Interval: Range: low high

Output Type:  PNG  Google Earth

(Report Bugs)