The second generation of phenofit cooperating with Julia.
phenofit
combine merits of TIMESAT and phenopixoptimx
is used to select best optimization method for different curve fitting methods.Task lists
phenofit
in multiple growing season regions (e.g. the North China Plain);Rcpp
improve double logistics optimization efficiency by 60%;Figure 1. The flowchart of phenology extraction in phenofit
.
You can install phenofit2 from github with:
# install.packages("devtools")
devtools::install_github("kongdd/phenofit2")
1
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. https://doi.org/10.1029/2020JG005636
2
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, 13–24.
3
Kong, D., (2020). R package: A state-of-the-art Vegetation Phenology extraction package,phenofit
version 0.2.6, https://doi.org/10.5281/zenodo.3605560
4
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 (1982–2013). Agric. For. Meteorol. 248, 408–417. https://doi.org/10.1016/j.agrformet.2017.10.026