Sentences with word «paleoclimatic»
The word "paleoclimatic" refers to the study of ancient or past climates. It helps scientists understand how the Earth's climate has changed over long periods of time, usually by examining evidence from natural sources like ice cores, fossils, or sediment layers. Full definition
Recent modeling efforts, assuming cool Pacific and warm Atlantic SSTS, have replicated the main features of medieval drought in North America documented in paleoclimatic data (36).
pnas.org
Tingley, Martin P. Spurious predictions with random time series: The Lasso in the context of paleoclimatic reconstructions.
Climatic signal in tree - ring width chronologies of European Russia: spatial change and perspectives for paleoclimatic reconstructions Vladimir Matskovsky
However, major 20th century droughts pale in comparison to droughts documented in paleoclimatic records over the past two millennia (5).
This comes in addition to the previously shown fact that the correlation of cosmic ray flux with paleoclimatic data proposed by Shaviv and Veizer (2003) only arises «by making several arbitrary adjustments to the cosmic ray data» (Rahmstorf et al. 2004).
The longer term proxies beg the question — as all of the extreme paleoclimatic changes are entirely natural — of causality.
Data from other paleoclimatic research suggest that cyclical changes in the tilt of the earth's axis and seawater temperatures drove these wet conditions in the South American tropics.
A 2 - D numerical model of snow / ice energy balance and ice flow for paleoclimatic interpretation of glacial geomorphic features.
Piecing together the past: Statistical insights into paleoclimatic reconstructions.
«Researchers first became intrigued by abrupt climate change when they discovered striking evidence of large, abrupt, and widespread changes preserved in paleoclimatic archives... The chapter concludes with examples of modern climate change and techniques for observing it.
Placing the climate limits in an enlarged paleoclimatic context will help to demonstrate that the chosen climate targets are valid and represent dangerous extremes of the known natural range of Holocene temperature variability.
If an equation can be developed that accurately describes instrumentally observed climatic variability in terms of tree growth over the same interval, then paleoclimatic reconstructions can be made using only the tree - ring data.
There are also a number of paleoclimatic recorders of oxygen isotopes, including lake / ocean records, speleothems (in caves), corals, ice cores, etc..
Perhaps a little knowledge about Forrier analysis would provide you the evidence you need to understand how we can extricate anthropogenic global warming from the mess of solar cycles and larger paleoclimatic cycles.
There are a number of new Reference Pages in progress, but a Global Paleoclimatic History Page will be added to the cue.
Coats, S., J.E. Smerdon, R. Seager, D. Griffin, and B.I. Cook, 2015: Winter - to - summer precipitation phasing in southwestern North America: A multi-century perspective from paleoclimatic model - data comparisons.
Tigriopus californicus» portrait offers the first modern case study to confirm paleoclimatic warnings.
On the global mean sea level rise during the last interglacial period (129,000 to 116,000 years ago), the UK, Austria, US, Germany and others supported providing a policy relevant context and linking paleoclimatic observations on sea level rise to temperature.
The corresponding future temperatures in Greenland are comparable to those inferred for the last interglacial period 125,000 years ago, when paleoclimatic information suggests reductions of polar land ice extent and 4 to 6 m of sea level rise.
IPCC section 6.2 entitled Paleoclimatic Methods is slightly longer (~ 1920 words) than Wegman section 2.1.
Discrimination between environmental and anthropogenic impacts on past civilizations, however, remains difficult because of the paucity of high - resolution paleoclimatic evidence.
Presentations contribute towards a global coverage of high - resolution, well - dated paleoclimatic data, reconstructions of past climate - state parameters (e.g., temperature, precipitation, atmospheric pressure fields), a better understanding of past modes of climate variability and their teleconnections, and of rapid and extreme climate events at the regional scale.
The article compares current rates of ocean warming with long - term paleoclimatic evidence from ocean sediments.
Aug. 26, 2016 — Paleoclimatic cave study in California is designed to identify the factors that made megadroughts commonplace in the western U.S. from 5,000 to 8,000 years ago.
Second, although the central Greenland ice - core records may provide the best paleoclimatic temperature records available, multiple parameters confirm the strong temperature signal, and multiple cores confirm the widespread nature of the signal, the data still contain a lot of noise over short times (snowdrifts are real, among other things).
The critical reason why the Hockey Stick featured so prominently was that Mann headed the group writing about paleoclimatic reconstructions.
New paleoclimatic research focusing on reconstructed temperature - CO2 relations during the Last Glacial Maximum leads to climate model runs indicating an about 23 percent lower climate sensitivity, with a median sensitivity value of 2.3 degrees Celsius (and a 66 percent range of 1.7 - 2.6 degrees — so an especially smaller maximum response).
Coverage includes original paleoclimatic, diagnostic, analytical and numerical modeling research on the structure and behavior of the atmosphere, oceans, cryosphere, biomass and land surface as interacting components of the dynamics of global climate.