期刊
ECOGRAPHY
卷 38, 期 4, 页码 431-436出版社
WILEY
DOI: 10.1111/ecog.01335
关键词
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资金
- European Research Council under the European Union [282250]
- Charles Bullard Fellowship in Forest Research
- Harvard Univ.
- US National Science Foundation [P2C2-0823480, AGS-EAGER-1256603, BSC-1230329]
- Direct For Social, Behav & Economic Scie
- Division Of Behavioral and Cognitive Sci [1230329] Funding Source: National Science Foundation
- Directorate For Geosciences
- Div Atmospheric & Geospace Sciences [1256603] Funding Source: National Science Foundation
The R package treeclim helps perform numerical calibration of proxy-climate relationships, with an emphasis on tree-ring chronologies. The package provides a unified, fast, and public-domain compilation of established methods while adding novel functionality not implemented in other software. treeclim includes static and moving bootstrapped response and correlation functions, seasonal correlation analysis, a test for spurious temporal changes in proxy-climate relations, and the evaluation of reconstruction skills. The stationary bootstrap method has been incorporated into the program as a blocks of blocks' resampling scheme. Applications of treeclim include the calibration of proxy timeseries used in paleoclimatology, forest ecology, and environmental monitoring.
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