SLPSAs_full: Gross NDVI time series extracted from Spot Vegetation data.

In ndvits: NDVI Time series extraction and analysis

Description

Gross NDVI time series extracted from Spot Vegetation data. The sites of interest are the South Asian study sites of CGIAR Systemwide Livestock Programme.
A kml file containing the location of the sites can be found at the following path :
print(system.file("extdata/shape/SLP-SAs.kml",package="ndvits"))

Usage

data(SLPSAs_full)

Format

SLPSAs_full is a list containing the 4 following objects :

• full : a data.frame with 79 obs. of 397 variables
  name is a factor with levels Assandh, India, Gharaunda, Goganda,India, Khansama, Bangladesh, Phulbari, Bangladesh, Sarada,India.
  All the other fields are the time series as extracted directly from the NDVI images.

• period indicates the number of observations per year (period = 36).

• Ystart indicates the starting year of the analysis (Ystart = 1999).

• maxNDVI indicates way of coding the ndvi images (maxNDVI = 255).

Source

Spot Vegetation data comes from : http://free.vgt.vito.be/

Examples

data(SLPSAs_full)

ts = normNDVI(SLPSAs_full$full, SLPSAs_full$maxNDVI)

signal=STLperArea(ts, area = SLPSAs_full$full$name,
    Ystart = SLPSAs_full$Ystart, period = SLPSAs_full$period, 
    SGfilter=FALSE)

ndvits documentation built on May 2, 2019, 4:47 p.m.