Github account for GrassCast DB. Data also found at https://data.nal.usda.gov/dataset/grasscast-database. Temporary info also found at https://globalviz-chrisdorich.shinyapps.io/grasscast_shiny/ where updates on the data and methods can be found. This website will be brought down in the future though.
GrassCast_Global_prep.Rmd is the final preparation script. It utilizes the below scripts to combine the data into a working environment.
- GrassCast_cattleweight.Rmd - for procesing cattle weight gain data (and NPP data for those sites).
- GrassCast_NDVI_climate.Rmd - for processing NDVI and climate data for sites.
- GrassCast_NPP.Rmd - for processing Annual aboveground net primary productivity (ANPP) data. There are subscripts for the site level within this, below:
- Jornada.Rmd
- ReynoldsCreek.Rmd
- Konza.Rmd
- sevilleta.Rmd
- Navajo.Rmd
- Torell.Rmd
- Nebraksa_sandhills.Rmd
Output excel files: These are the files that can be downloaded as part of the database. Also found at data.nal.usda.gov/dataset/grasscast-database. The database can also be directly loaded into R as the data is processed and saved in RData files. More info on those access R scripts and the R shiny app will come later.
- GrassCast_sitelist.xls - excel sheet that outlines basic site level information (contact info and meta-data) and provies a list of availables sites in version 1 of the database.
The resulting/processed datasets themselves are: (format is the first tab being 'readme' that gives metadata, second tab reflecting the data)
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ANPP.xls - annual aboveground net primary productivity (ANPP) data. Single ANPP value per site-pasture.
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ANPP_raw.xls - Temporal biomass measurements that are part of ANPP data sets
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Functional.xls - Species or plant functional group level datasets that comprise NPP.
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Cattle_weight_gain.xls - Cattle weight gain data from grazing experiments.
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NDVI.xls - MODIS and AVHRR cumulative growing season (April-October) NDVI value for sites in the database.
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NDVI_raw.xls - MODIS AND AVHRR temporal NDVI values for sites in the database.
Still being worked on:
- climate.xls - annual and growing season splits on climate data for the sites.
- climate_raw.xls - raw daily climate data for the sites.
-Chris Dorich
chris.dorich@colostate.edu