Extreme events 1871-2008

in the new 20th century reanalysis, version 2

Brian Mapes, University of Miami


Here you select the variable of interest, timescale of event, epoch etc.
Then hit the Submit button below.

That will make a new page, with images (maps) of extreme values and the year, month, and day of their occurrence.
There, you can click on any location, in any of the map images, to launch a new Results page.
Results include the date and magnitude of the extreme event, and hot links to case study resources (satellite images, reanalysis fields).



Pick a variable: 2m temperature (C) precipitation rate (mm/day)

(FUTURE) runoff ssrunoff 2m spec.hum. snow depth snow cover soil moisture snow water equivalent
Remove mean annual cycle? No

(FUTURE) extreme anomalies, in any season in DJF in MAM in JJA in SON NHwarm (MJJASO) NHcool (NDJFMA)

What time scale of event (boxcar smoother):
1d 3d 5d 7d 15d 31d

Min or max extremum?
min max

Do you want extremes of the ensemble mean, or of a high member, or of a low member?
ens.mean -spread/2 (conservative for maxima; extreme for minima)
ensemble mean
ens.mean +spread/2 (extreme for maxima; conservative for minima)


Pick an epoch for your extreme value:
1870s 1880s 1890s 1900s 1910s 1920s 1930s 1940s 1950s 1960s 1970s 1980s 1990s 2000s
1870+30y 1900+30y 1930+30y 1960+30y 1990+30y
1870+70y 1940+70y
1870-2008
Note: data cover 1871-2008