Sentences with phrase «over multidecadal time»

Steve the challenge will be not only finding «snapshots» of those variables, but finding repeated measures over multidecadal time spans.

My NCM is not dependent on the solar aspect as long as an alternative mechanism can be proposed for the variability of the polar high pressure cells over multidecadal time periods.

Testing the hypotheses must be accomplished by using «hindcast» simulations that attempt to reproduce past climate behavior over multidecadal time scales.

Not exact matches

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.

Over the 1840 — 2007 time span, two multidecadal low temperature periods (1861 — 1919 and 1963 — 84) in Greenland coincide with periods of multiple major volcanic eruptions.

(A) coordinate programs at the National Oceanic and Atmospheric Administration to ensure the timely production and distribution of data and information on global, national, regional, and local climate variability and change over all time scales relevant for planning and response, including intraseasonal, interannual, decadal, and multidecadal time periods;

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.

I would have though that absent any such additional forcing the El Nino and La Nina would indeed cancel out over enough time but as you point out they clearly do not cancel out on multidecadal timescales.

During this period, the rate of this rise has varied on multidecadal time scales making identifying exact reasons behind upswings, such has been observed over the past few decades, difficult.

If a scientist and in particular climate scientists don't understand the wide swings that do occur in data over short multidecadal time scales then how can they be trusted with understanding the large climatic swings on longer millenia time scales or vise - versa.

It seems that every new climate scenario making the media over the past 20 years they always describe a warm future on a multidecadal scale ignoring a cool future as if variability didn't exist, but isn't scientific climatology primarily concerned with longer millenia time scales of a thousand years or more?

Judith's point that AO and PO oscillations and multidecadal waves which may go in 60, 80 or 100 year cycles is completely ignored by saying that Natural variation should be ignored over a long time as it reverts to the mean.

Where the data is more ambiguous is with the long - term multidecadal trends, where such data is easily contaminated by artifacts due to changes in instrumentation over time, switches from one satellite to another, etc..