Sentences with phrase «using hemispheric»

This is the time - span over which temperatures with annual resolution can be calculated using hemispheric - wide tree - ring, ice - cores, corals, and other annually - resolved proxy data.

Not exact matches

Aside from humans, no other animal that has been studied, not even monkeys or apes, has proved to use such hemispheric specialization for sound processing — meaning that the left brain is better at processing fast sounds, and the right processing slow ones.

A number of recent studies indicate that effects of urbanisation and land use change on the land - based temperature record are negligible (0.006 ºC per decade) as far as hemispheric - and continental - scale averages are concerned because the very real but local effects are avoided or accounted for in the data sets used.

More disappointing is the lossy DD 5.1 track — it's fine, but the picture has a fairly hemispheric mix to start with, and it could sorely use the added depth of Master Audio.

[2 marks] 1 1 Briefly evaluate research using split brain patients to investigate hemispheric lateralisation of function.

The automatic adjustments used in global gridded data probably do a good job for what they were designed to do (remove spurious trends from global or hemispheric temperature series), but they should not be relied upon for more detailed local analysis, as Hansen et al. (1999) warned: «We recommend that the adjusted data be used with great caution, especially for local studies.»

Using the empirical relationships between Greenland and the Northern Hemisphere surface air temperature data, we calculate that if Greenland was to become in phase with the hemispheric pattern, as it did after 1923, an additional 1.08 — 1.68 C warming would occur.

â $ ¦ â $ ¦ Phil and I have recently submitted a paper using about a dozen NH records that fit this category, and many of which are available nearly 2K backâ $ «I think that trying to adopt a timeframe of 2K, rather than the usual 1K, addresses a good earlier point that Peck made w / regard to the memo, that it would be nice to try to â $ œcontainâ $ the putative â $ œMWPâ $, even if we donâ $ ™ t yet have a hemispheric mean reconstruction available that far backâ $ ¦.

Wilson (2007) Matter of divergence: tracking recent warming at hemispheric scales using tree - ring data.

Using WBGT as a measure of environmental conditions conducive to heat stress, we show that anthropogenic influence has very substantially increased the likelihood of extreme high summer mean WBGT in northern hemispheric land areas relative to the climate that would have prevailed in the absence of anthropogenic forcing.

«In practice, this method, though not recommended, does not appear to unduly influence reconstructions of hemispheric mean temperature; reconstructions performed without using principal component analysis are qualitatively similar to the original curves presented by Mann et al..»

In this investigation, a circulation index was used which is capable of tracing blocked states of the hemispheric circulation which has a relevance for a mid-latitude window between 40 ° and 60 ° N and between 30 ° W and 30 ° E. Results with respect to the seasonality of blocking situations are presented.

«The fact that the drought atlases provide a nearly hemispheric view of hydroclimate variability provides an incredible amount of information that can be used to better understand what was happening in the atmosphere and ocean,» Coats said.

The hemispheric scale adds to the potential uses of what was already the gold standard of paleo - hydroclimate research, said Sloan Coats, a climate dynamicist at the University of Colorado who studies megadroughts using the atlases.

1) «Phil and I have recently submitted a paper using about a dozen NH records that fit this category, and many of which are available nearly 2K back — I think that trying to adopt a timeframe of 2K, rather than the usual 1K, addresses a good earlier point that Peck made w / regard to the memo, that it would be nice to try to «contain» the putative «MWP», even if we don't yet have a hemispheric mean reconstruction available that far back» Michael Mann http://bit.ly/9d06xq

In practice, this method, though not recommended, does not appear to unduly influence reconstructions of hemispheric mean temperature; reconstructions performed without using principal component analysis are qualitatively similar to the original curves presented by Mann et al. (Crowley and Lowery 2000, Huybers 2005, D'Arrigo et al. 2006, Hegerl et al. 2006, Wahl and Ammann in press).»

Arbetter et al.; 4.5 million square kilometers; Heuristic Using the most current hemispheric ice chart and ArcGIS, the map is edited to select all parcels with MYI as the primary ice type.

Within the paleoclimate context, where the expectation is that each proxy is weakly correlated to the northern hemisphere mean (for two reasons: proxies generally have a weak correlation with local climate, which in turn is weakly correlated with a hemispheric average) the LASSO as used by MW2010 is simply not an appropriate tool.

E.g. Hegerl et al 2000 (linked by the SkS post) use an estimate of the net climate forcing over the past milennium and an estimate of the (northern hemispheric) temperature to arrive at an empirically based estimate fo the climate sensitivity.

The constructions of global and hemispheric temperature averages by international agencies are the most prominent use of the early data.

The earlier data that do exist may be used to construct a very uncertain estimate of Australian temperatures, and may also be used for the construction of global and hemispheric temperature averages on monthly and annual time scales.

[Response: I'll assume you're simply unaware of the fact that extensive tests of precisely this issue were provided in the previous article by Mann et al (2008)(covered by RealClimate previously) which used both «RegEM with TTLS» and «CPS» to reconstruct hemispheric mean temperatures.

In the GISTEMP index, the tables of zonal, global, hemispheric means are computed by combining the 100 subbox series for each box of the equal area grid, then combining those to get 8 zonal mean series, finally from those we get the Northern (23.6 - 90ºN), Southern and tropical means, always using the same method.

Old positive feedback examples in climate change... «Feedback Loops In Global Climate Change Point To A Very Hot 21st Century Using deuterium - corrected temperature records for the ice cores, which yield hemispheric rather than local temperature conditions, GCM climate sensitivity, and a mathematical formula for quantifying feedback effects, Torn and Harte calculated the magnitude of the greenhouse gas - temperature feedback on temperature.»

As well as this simple estimate from heat balance implying a best estimate for ECS of approximately 1.6 °C, and the reworking of the Gregory 02 results suggesting a slightly lower figure, two good quality recent observationally - constrained studies using relatively simple hemispheric - resolving models also point to climate sensitivity being about 1.6 °C:

Put in a two - hemisphere energy - balance model and using observed hemispheric temperature changes and ocean heat uptake changes you can easily arrive at an independent total aerosol forcing estimate - one that also implies small net total aerosol forcings that are reasonably consistent with the latest observatiional findings.

Here we consider briefly some additional studies that examine the spatial structure of observed trends or use more sophisticated time - series analysis techniques to characterise the behaviour of global, hemispheric and zonal mean temperatures.

Statistical models of time - series Further extensions involve the use of statistical models of global, hemispheric and regional temperature time - series.

Let's start with the PubMed link above, and look at the title: Emotive hemispheric differences measured in real - life portraits using pupil diameter and subjective aesthetic preferences.