This function downloads, processes, and extracts variables from the EarthEnv Global Cloud Cover dataset. Each variable corresponds to a global Cloud-Optimized GeoTIFF (COG) representing cloud cover dynamics.
Arguments
- x
The output from `par_set()` defining the area or locations for extraction, the reference system, and the buffer. Leave this empty and use `par_set()` to define parameters for download.
- vars
Character vector of one or more variables to download and process.
- ...
Additional arguments (currently unused).
Value
If `par_set()` contained a raster/polygon/points with buffer: a `SpatRaster` stack of processed variables. If `par_set()` contained spatial points or data.frame of points without buffer: a `data.frame` of x, y, and extracted values.
Details
Available variables (working synonyms in parentheses):
Metrics
1 - "MODCF_CloudForestPrediction" ("cloud forest prediction", "cloud forest", "cfp")
2 - "MODCF_interannualSD" ("inter-annual variability", "interannual sd", "interannual variability")
3 - "MODCF_intraannualSD" ("intra-annual variability", "intraannual sd", "intraannual variability")
4 - "MODCF_meanannual" ("mean annual", "annual mean", "annual")
5 - "MODCF_spatialSD_1deg" ("spatial variability", "spatial sd", "spatial sd 1deg")
Seasonality
6 - "MODCF_seasonality_concentration" ("seasonality concentration", "concentration")
7 - "MODCF_seasonality_rgb" ("seasonality rgb", "rgb")
8 - "MODCF_seasonality_theta" ("seasonality theta", "theta")
9 - "MODCF_seasonality_visct" ("seasonality single band", "seasonality visct", "seasonality color")
Monthly Means
10 - "MODCF_monthlymean_01" ("january mean", "january", "jan")
11 - "MODCF_monthlymean_02" ("february mean", "february", "feb")
12 - "MODCF_monthlymean_03" ("march mean", "march", "mar")
13 - "MODCF_monthlymean_04" ("april mean", "april", "apr")
14 - "MODCF_monthlymean_05" ("may mean", "may")
15 - "MODCF_monthlymean_06" ("june mean", "june", "jun")
16 - "MODCF_monthlymean_07" ("july mean", "july", "jul")
17 - "MODCF_monthlymean_08" ("august mean", "august", "aug")
18 - "MODCF_monthlymean_09" ("september mean", "september", "sep")
19 - "MODCF_monthlymean_10" ("october mean", "october", "oct")
20 - "MODCF_monthlymean_11" ("november mean", "november", "nov")
21 - "MODCF_monthlymean_12" ("december mean", "december", "dec")
Citation:
Wilson AM, Jetz W (2016). "Remotely sensed high-resolution global cloud dynamics for predicting ecosystem and biodiversity distributions." PLoS Biol 14(3): e1002415.
https://doi.org/10.1371/journal.pbio.1002415
Note: Please cite original sources of primary datasets where appropriate.
