In kongdd/PhenoAsync: Extract Remote Sensing Vegetation Phenology

knitr::opts_chunk$set(
  collapse = TRUE,
  comment = "#",
  fig.width = 10, fig.height = 5,
  fig.align = "center",
  fig.path  = "man/Figure/",
  dev = 'svg'
)

PhenoAsync

Extract vegetation phenology by phenofit (v0.2.7) at 95 flux sites.

Vegetation Phenology Data at 95 flux sites

There are two data files:

• pheno_flux95_prim ((GPP_DT) v0.2.6.9000).rda: vegetation carbon phenology from GPP_DT
• pheno_flux95_prim ((GPP_NT) v0.2.6.9000).rda: vegetation carbon phenology from GPP_NT

For each file, two variables are in there:

• df_gpp_prim: vegetation carbon phenological metrics extracted from flux sites GPP observations
• df_VI_prim : vegetation greenness phenological metrics extracted from MODIS remote sensing vegetation indexes

load("INPUT/pheno_flux95_prim ((GPP_NT) v0.2.6.9000).rda")
# load("INPUT/pheno_flux95_prim ((GPP_DT) v0.2.6.9000).rda")
print(df_gpp_prim)
print(df_VI_prim)

column variables:

• sate : MODIS satellites, one of "combined" "Aqua", and "Terra"
• type_VI: vegetation indexes, one of "EVI", "NDVI", "EVI_pc" and "NDVI_pc"
• group : 3*3 grids id, 5 is the central grid
• meth : curve fitting methods, one of
• flag : growing season id
• origin : first date of this year
• others : vegetation phenological metrics extracted by phenofit

kongdd/PhenoAsync documentation built on April 21, 2024, 2:36 a.m.