Proxy Records

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1
Proxy Record
phenomenon that changes based on temp/ rainfall and used to record past climates
2
ships logs
sample sea water temps
3
ice break/lake freeze
great lakes freeze over and record climate
4
grain proces in europe
higher when harvest is good
5
fish prices in South America
El Niño- warm water off peru fish dont like it
6
flood levels of Nile
recorded up till 1960s, rainfall from ethiopia
7
Lake Varves
high latitude lakes freeze solid killing algea and preserving sediments creating inorganic and organic layers
8
Lake Biwa Japan
more than 50k varves = 50k years
9
Tree Rings
see composition of atmosphere in tree rings. for mountain tree lines upper records summer temps and lower records rainfall
10
Cherry Blossom Bloom
Cold weather = late bloom
11
Dendrochronology
records climate of tree rings. bristlecone pine is best, 54hundred years
12
Ice Layers and Icecaps
2 Mile Time Machine stuff
13
Ostracodes
freshwater critters in southwest US lakes. different species tel us about different water qualities
14
Stalagtite Layers
Records water composition
15
Pakrat Widden
Poop. detailed vegetarian record
16
CCD-Calcite Compensation Depth
calcium corbonate organism dissolve at certain depth
17
Sant Barbra Channel
rainfall flows debris into ocean. one kf best climate measures here
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