Open AccessAn additional step toward comprehensive paleoclimate reanalyses
Author(s) -
Goosse Hugues
Publication year - 2016
Publication title -
journal of advances in modeling earth systems
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 3.03
H-Index - 58
ISSN - 1942-2466
DOI - 10.1002/2016ms000739
Subject(s) - paleoclimatology , proxy (statistics) , data assimilation , ice core , climatology , limiting , geology , environmental science , assimilation (phonology) , climate model , climate change , atmospheric sciences , physical geography , meteorology , mathematics , statistics , oceanography , geography , mechanical engineering , linguistics , philosophy , engineering
Although data assimilation in paleoclimatology has shown significant progress, the model data comparison step remains a limiting factor because paleoclimate (proxy) records have generally a complex response to both climatic and nonclimatic factors. In experiments performed in a controlled framework, Dee et al. (2016) have applied proxy system models that simulate tree ring width, isotopic composition of corals and isotopic composition of ice cores from the results of a climate model. The difference between those simulated variables and the value measured on the natural archive can then be computed directly, improving significantly the performance of the data assimilation method.