climate proxy
Magnetic record associated with tree ring density: Possible climate proxy
... nent of the remanence within the trees. NRM tends to fluctuate to larger amplitudes than SIRM. This fluctuation may be due to blocking temperature that is very close to room temperature. Therefore, we attempted to use ...
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Statistical framework for evaluation of climate model simulations by use of climate proxy data from the last millennium – Part 2: A pseudo-proxy study addressing the amplitude of solar forcing
... drive climate model simulations, and then see which forcing his- tory provides simulated temperatures that are most compat- ible with the observed past temperatures and reconstructed past temperatures derived from ...
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Statistical framework for evaluation of climate model simulations by use of climate proxy data from the last millennium – Part 1: Theory
... of climate proxy data, representing different re- gions, covering different time periods and having different precision, are used to represent the real ...simulated climate with climate ...
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The DeepMIP contribution to PMIP4: methodologies for selection, compilation and analysis of latest Paleocene and early Eocene climate proxy data, incorporating version 0.1 of the DeepMIP database
... One key assumption for δ 18 O-based temperatures is that foraminifera precipitate their tests in isotopic equilibrium with seawater. However, foraminiferal physiology (e.g., respiration, metabolism, biomineralization, ...
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Climatic controls and climate proxy potential of Lewis Glacier, Mt. Kenya
... alternative climate proxies in- dicating abundant precipitation and high lake levels in the decades prior to 1880 ...temperature proxy to com- plement the moisture proxy of the Kilimanjaro ice ...
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The Use of Greenhouse Gases as Climate Proxy Data in Interpreting Climatic Variability
... a mineral extracted from sea water, through which some corals form annual rings as they grow. The carbonate contains isotopes of oxygen, as well as trace metals which are similar to those of tree rings which can be used ...
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An introduction to stable water isotopes in climate models: benefits of forward proxy modelling for paleoclimatology
... in climate archives is a strong climate proxy, yet difficult to interpret because it is influenced by a wide range of climate ...stable. Climate models with embed- ded stable water ...
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Assessing Arctica islandica as a proxy for Scottish marine climate change
... a proxy for NAO ...larger-scale climate events such as El Niño Southern Oscillation (ENSO) ...annually-resolved climate proxy ...resolution climate information well ...
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Changes in atmospheric variability in a glacial climate and the impacts on proxy data: a model intercomparison
... resolution proxy records of long ...infer climate changes back in time at regional, hemispheric and even global spatial scales ...modern climate temperature-isotope ...between climate and ...
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Hydroclimate variability in Scandinavia over the last millennium – insights from a climate model–proxy data comparison
... of climate proxy information with general circulation model (GCM) results offers considerable potential for deriving greater understanding of the mecha- nisms underlying climate variability, as well ...
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Effects of light and temperature on Mg uptake, growth, and calcification in the proxy climate archive Clathromorphum compactum
... While the findings of this experiment should inform the use of replication and calibration of individual samples to improve the use of C. compactum as a climate proxy, they do not discount the results of ...
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A South Atlantic island record uncovers shifts in westerlies and hydroclimate during the last glacial
... rapid climate shifts recorded in Greenland ice cores known as Dansgaard–Oeschger (DO) cycles (Markle et ...interhemispheric climate swings involving heat exchange between the hemispheres through the ...
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Characterisation of long-term climate change by dimension estimates of multivariate palaeoclimatic proxy data
... palaeoclimatic proxy data such as physical or chemical properties of sediment and ice cores, or tree ...paleoclimatic proxy data are tracers of lo- cal or global climate ...
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Technical Note: Correcting for signal attenuation from noisy proxy data in climate reconstructions
... Applying attenuation correction in the ordinary least squares (ACOLS) solution effectively eliminates the bias seen in OLS-based reconstructions (Fig. 1b, c). Orthogo- nal regression methods such as total-least-squares ...
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A multi-proxy analysis of Late Quaternary ocean and climate variability for the Maldives, Inner Sea
... Evaluations of deep-sea sediment archives from the Ara- bian Sea deliver not only comprehensive information on the pacing and intensity of the Indian summer monsoon on or- bital timescales (Clemens and Prell, 1990, 2003; ...
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Bunker Cave stalagmites: an archive for central European Holocene climate variability
... We present multi-proxy data of four partly overlapping Holocene stalagmites collected within a distance of 12 m in Bunker Cave. After the pioneering multi-proxy record from three stalagmites from Marcelo ...
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Climate of the Past
... with proxy- based reconstructions, using time series of reconstructed and simulated climate ...mean climate, and a good match was found after 1650 with a model run that took into account changes in ...
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The triple oxygen isotope composition of phytoliths as a proxy of continental atmospheric humidity: insights from climate chamber and climate transect calibrations
... Abstract. Continental atmospheric relative humidity (RH) is a key climate parameter. Combined with atmospheric tem- perature, it allows us to estimate the concentration of atmo- spheric water vapor, which is one ...
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Palaeogeographic controls on climate and proxy interpretation
... The work presented so far has been in a fixed Eulerian longitude–latitude reference frame (which resulted in the artefacts discussed in Sect. 3.3.2), but in order to generate such an adjustment factor it is necessary to ...
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Proxy Statements
... years, participants are required to make employee contributions under the 401(k) Savings and Profit Sharing Supplement to receive the employer contributions to the savings plan component, and the amount of the em- ployer ...
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