GBI is the mean 500 hPa geopotential height for the 60-80°N, 20-80°W
region. It measures blocking over Greenland which impacts both climate and
weather in the Northern Hemisphere.
Time Interval: Monthly
Time Coverage: 1851 to present
Update Status: updated irregularly
Monthly data is from U of Lincoln using the 20CRV2c and the NCEP Reanalysis I datasets. The two dataset time-series were merged using the procedure described in their paper.
Daily data is from the NCEP/NCAR Reanalysis.
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