"Multidecadal" refers to a time period that spans multiple decades, typically lasting for several decades. It is used to describe events, patterns, or phenomena that occur over an extended period of time, typically exceeding ten years.
Full definition
Instead, the find the historical records dominated by periods
of multidecadal variability.
Kravtsov, S., M. G. Wyatt, J. A. Curry, and A. A. Tsonis, 2014: Two contrasting views of
multidecadal climate variability in the twentieth century.
Soon, W., 2005: Variable solar irradiance as a plausible agent for
multidecadal variations in the Arctic - wide surface air temperature record of the past 130 years, Geophysical Research Letters32: doi.10.1029 / 2005GL023429.
THE ANIMATION OF
MULTIDECADAL CHANGES IN SST ANOMALIES The Goddard Institute of Space Studies (GISS) Global Map - Making webpage allows users to create maps of global SST anomalies and maps of the changes in global SST anomalies (based on local linear trends) over user - specified time intervals.
Testing the hypotheses must be accomplished by using «hindcast» simulations that attempt to reproduce past climate behavior over
multidecadal time scales.
Indeed, the last thirty years likely represent the warmest
multidecadal period for Europe in at least the past half millennium [Luterbacher, J., Dietrich, D., Xoplaki, E., Grosjean, M. and H. Wanner, Science, 303, 1499 - 1503, 2004], while the last decade (1995 - 2004) is likely the warmest decade, and summer 2003 the warmest summer.
As discussed in our posting above, Emanuel's analyses also cast doubt on the proposition that the recent Atlantic basin trends can be dismissed as simply part of
multidecadal cycle alone.
If you are trying to attribute warming over a short period, e.g. since 1980, detection requires that you explicitly consider the phasing of
multidecadal natural internal variability during that period (e.g. AMO, PDO), not just the spectra over a long time period.
This presumption almost certainly damps the longer
internal multidecadal oscillations particularly in the data sparse Pacific Ocean (note this will be discussed in detail in a future post).
Gulev, S.K., M. Latif, N.S. Keenlyside, W. Park, K.P. Koltermann, 2013: North Atlantic Ocean Control on Surface Heat Flux
at Multidecadal Timescales.
University of Montana Professor John Kimball is among the team of researchers who published an article on Oct. 30 about their study on Nature magazine's website titled «Vegetation Greening and Climate Change Promote
Multidecadal Rises of Global Land Evapotranspiration.»
The observed internal variability so estimated exhibits a pronounced
multidecadal mode with a distinctive spatiotemporal signature, which is altogether absent in model simulations.
Zhang, R., T. L. Delworth, and I. M. Held, 2007: Can the Atlantic Ocean drive the
observed multidecadal variability in Northern Hemisphere mean temperature?
Given that, our best assessment of the relationship between the AMO surface pattern and the underlying THC variations is likely to come from analyses of long coupled model integrations with models that are known to
produce multidecadal variability in the THC and an «AMO» of sorts.
The cold season CEI indicates an increase in extremes since the early 1970s yet has
large multidecadal variability
One, it chose the lowest point in the 60
year multidecadal oscillation for the anomaly measurement, so of course doubled the slope since instantly.
Phrases with «multidecadal»