ERA5 Modes of Interannual Variability

| DOI: 10.5065/DR73-N918

This dataset represents a suite of climate diagnostics for 56 variables relating to the interannual variability of ECMWF ERA5 monthly mean data. Basic fields for each of these variables include a monthly mean climatology and standard deviation, corresponding anomalies spanning 40 or more years of data, empirical orthogonal functions (EOFs), principal component (PC) time series, percent variance explained by each EOF, and an estimate of the standard error of the percent variance explained. Dominant modes of variability include El Nino Southern Oscillation (ENSO) in sea surface temperature, and the Antarctic Oscillation (AO) and North Atlantic Oscillation (NAO) in surface pressure. Separate analyses are performed for the entire globe, northern hemisphere only, and southern hemisphere only. There is sufficient information to further explore lagged correlations, teleconnections, and more advanced statistical techniques. Preparation and calculation of this dataset is performed by CISL DECS at NCAR.

Temporal Range:
1979-01-01 00:00 +0000 to 2018-12-01 00:00 +0000
Cloud Frequency Dew Point Temperature Gravity Wave Heat Flux
Ice Extent Planetary Boundary Layer Height Sea Level Pressure Sea Surface Temperature
Skin Temperature Snow Density Snow Depth Snow/Ice Temperature
Snow/Ice Temperature Soil Moisture/Water Content Surface Pressure Surface Winds
Total Precipitable Water Tropospheric Ozone Wind Stress
Vertical Levels:
See the detailed metadata for level information.
Data Types:
Spatial Coverage:
Longitude Range: Westernmost=180W Easternmost=180E
Latitude Range: Southernmost=90S Northernmost=90N Detailed coverage information
Data Contributors:
European Centre for Medium-Range Weather Forecasts
Total Volume:
139.11 GB
Data Formats:
Related RDA Datasets:
ERA5 Reanalysis (0.25 Degree Latitude-Longitude Grid)
ERA5 Reanalysis (Monthly Mean 0.25 Degree Latitude-Longitude Grid)
ERA5.1: Corrections to ERA5 Stratospheric Temperature 2000-2006
ERA5 back extension 1950-1978 (Preliminary version)
More Details:
View a more detailed summary of the data, including specific date ranges and locations by parameter
Metadata Record:
Data License:
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