Climate And Paleoclimatology - 1665 Words

4.0 Measuring and Noticing the Change 4.1 Paleoclimatology The Earth has maintained records of its climatic conditions in glaciers and ice caps, sediments from lakes and oceans, within the skeletons of coral reefs, as well as tree rings. The study of these samples is known as paleoclimatology. These environmental recorders can be used by scientists to estimate past conditions. Common findings from paleoclimatologists (those who study environmental evidence to gain insight on what the past climate was like and why) indicate that the Earth’s climate is always changing. Further examination shows that the Earth’s climate is able to drastically shift in a matter of years or decades. A main focus in paleoclimatology is to distinguish whether the†¦show more content†¦As the layers are marked based on seasonal variations in snow, the isotopic composition of the precipitation is examined further to determine the temperature when and where the snow fell. Similarly, examining the isotopic properties of wind-blown dust allows for the material to be traced back to its origin. Anything that is within the atmosphere has the potential to end up in an ice core, and more often than not remains unchanged over time. Trapped gases in air bubbles are highly reliable records of atmospheric composition. Slight differences between bubbles and air composition caused by gravitational and thermal effects, are well understood and recognizable. Certain chemical reactions in impure ice can possibly produce abnormal compositions for some gases. However, due to the close association of the gas and ice-chemistry, it is a clear indicator of climate change (Óskarsson, 2004). Ice core records are generally cross-referenced with other ice core records along with other methods of instrumental climate records to confirm findings. Statistical and physical analyses are needed to put small, one-time changes into perspective. Meanwhile, large changes in the concentrations of most materials in ice, reflect changes in their atmospheric l oading. Similar to layers of snow accumulating on top of glaciers or ice caps, billions of tons of sediment accumulate on the ocean floor and in lake basins each year andShow MoreRelatedEarths Climate, Look To The Ocean By Christopher Sarro807 Words   |  4 Pages I chose an article in the CLIMATE MONITORING section. To Study Earth’s Climate, Look to the Ocean by Christopher Sarro on October 3, 2017 This article focuses on how some international scientist’s measurement and analysis the ocean heat using past and present tools. Such as weather and climate data, the Global Temperature-Salinity reports, the World Ocean Database, the Extended Reconstructed Sea Surface Temperature (ERSST) dataset, and the Global Argo Data Repository of ocean temperaturesRead MoreThe Scientific Study Of Climate Archives1514 Words   |  7 PagesIntroduction Paleoclimatology is the scientific study of Earth’s past climate using indirect data (â€Å"Paleoclimatology†, 2015). Since the Industrial Revolution studying climate archives is important because anthropogenic effects have become a prominent factor in climatic variation and they allow scientist to get an idea of past climatic variation in order to predict future climatic trends (Redinger, 2006). The indirect indicators that are used in climate archives are known as climate proxies (RuddimanRead MoreEssay about Human Caused Global Warming1277 Words   |  6 Pages At first thought the essay topic global warming, seemed simple. 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