Table_of_historic_and_prehistoric_climate_indicators

Table of historic and prehistoric climate indicators

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This table is a reference tool for rapidly locating Wikipedia articles on Historic and Prehistoric climate indicators of all types.

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Alkenone analysis
TEX-86 analysis
Nile river flood levels
Trace mineral ratios in deltaic sediment
Wildlife distribution
Pollen analysis
Historic storm-related sinkings
Sea temperature and atmospheric pressure (ENSO)
Scientific meteorological measurements (since 1800s)
- air temperature
- air pressure
- wind speed and direction
Ocean currents and marine productivity
Flooding and drought observations on land
Volcanic activity
Elevated charcoal in lake sediments
Sand dune activation records
Eolian (wind-borne) sediment deposition

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http://treephys.oxfordjournals.org/content/30/6/669.full.pdf+doc | "The median values for height, stem diameter and all biomass measurements at elevated growth temperatures were always near 1 for evergreens, indicating that for every study that found increased growth with warming, there were a similar number that found a decrease "

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Method	Type	Basis	Interpret	Instruments	Back To
Varve Analysis	Geological	Annual bands of seasonally differing particle size in glacial lake deposits	Samples carry Proxies. Thicker bands = warmer, wetter weather	Visual and Microscope	ca 13,000 yrs BP
Dendroclimatology	Biological	Annual bands of seasonally differing woody growth tissue in trees	Thicker bands = warmer and/or wetter weather, although some studies found thinner trunks for higher temperatures ^[1]	Visual and Microscope	ca 10,000 yrs BP
Ice cores	Geological	Annual (or periodic) layers of differing ice crystals in glaciers and ice caps	Samples carry Proxies. Thicker bands = snowier weather	Chemical and Mass Spectrometer	ca 800,000 yrs BP
Speleothems	Geological	Layers of seasonally differing stalagmite/stalactite deposits in limestone caves	Samples carry Proxies. Thicker bands = warmer, wetter surface weather	Visual and Microscope	ca 500,000 yrs BP
Sun Spots	Astronomical	Number of spots visible on the surface of the Sun over various periods	More spots = warmer weather cycles (this is controversial)	Visual and Telescope	1700 AD
Oxygen Isotope Analysis, see marine isotope stage	Geochemical Climate Proxy	Ratio of Oxygen-18 to Oxygen-16 in calcite from deep sea sediment, and coral cores	More Oxygen-18 = colder climatic periods	Mass Spectrometer	ca 542,000,000 yrs BP
Beryllium-10 Analysis	Geochemical Climate Proxy	Ratio of Beryllium-10 to daughter isotopes in dust from ice cores	Produced in atmosphere by cosmic rays and absorbed into the hydrologic cycle. Level of Beryllium-10 has been shown to closely match recent solar activity measured by sun spots	Mass Spectrometer	ca 80,000 yrs BP

Table_of_historic_and_prehistoric_climate_indicators

Table of historic and prehistoric climate indicators

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