The merits of 'TIMESAT' and 'phenopix' are adopted. Besides, a simple and growing season dividing method and a practical snow elimination method based on Whittaker were proposed. 7 curve fitting methods and 4 phenology extraction methods were provided. Parameters boundary are considered for every curve fitting methods according to their ecological meaning. And 'optimx' is used to select best optimization method for different curve fitting methods. Reference: Kong, D., (2020). R package: A state-of-the-art Vegetation Phenology extraction package, phenofit version 0.3.1, <doi:10.5281/zenodo.5150204>; Kong, D., Zhang, Y., Wang, D., Chen, J., & Gu, X. (2020). Photoperiod Explains the Asynchronization Between Vegetation Carbon Phenology and Vegetation Greenness Phenology. Journal of Geophysical Research: Biogeosciences, 125(8), e2020JG005636. <doi:10.1029/2020JG005636>; Kong, D., Zhang, Y., Gu, X., & Wang, D. (2019). A robust method for reconstructing global MODIS EVI time series on the Google Earth Engine. ISPRS Journal of Photogrammetry and Remote Sensing, 155, 13â24; Zhang, Q., Kong, D., Shi, P., Singh, V.P., Sun, P., 2018. Vegetation phenology on the Qinghai-Tibetan Plateau and its response to climate change (1982â2013). Agric. For. Meteorol. 248, 408â417. <doi:10.1016/j.agrformet.2017.10.026>.
Version: 0.3.10 Depends: R (≥ 3.1) Imports: Rcpp, purrr, dplyr (≥ 1.1.0), stringr, magrittr, lubridate, data.table, zoo, gridExtra, ggplot2, optimx, ucminf, numDeriv, methods, zeallot LinkingTo: Rcpp, RcppArmadillo Suggests: knitr, rmarkdown, testthat (≥ 2.1.0) Published: 2025-05-25 DOI: 10.32614/CRAN.package.phenofit Author: Dongdong Kong [aut, cre], Mingzhong Xiao [aut], Yongqiang Zhang [aut], Xihui Gu [aut], Jianjian Cui [aut] Maintainer: Dongdong Kong <kongdd.sysu at gmail.com> BugReports: https://github.com/eco-hydro/phenofit/issues License: GPL-2 | file LICENSE URL: https://github.com/eco-hydro/phenofit NeedsCompilation: yes Materials: README NEWS CRAN checks: phenofit results Documentation: Downloads: Linking:Please use the canonical form https://CRAN.R-project.org/package=phenofit to link to this page.
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