Submodules

There are multiple submodules available, which implement different workflows. They all share the higher-level Compute model. There is one executable only, i.e. force-higher-level. Depending on the parameter file, the program will figure out which submodule to execute.

Table 2 Submodules of HLPS.

Submodule	Level	Input type	Short description
Level 3 Compositing	3	ARD	Generate temporal aggregations of Level 2 ARD, i.e. pixel-based composites
Clear Sky Observations	3	ARD	Statistics for Level 2-3 ARD data availability mining
Time Series Analysis	3-4	ARD	Multitemporal analysis and processing based on Level 2-3 ARD
Machine Learning	4	feature	Model predictions based on any cubed features
Texture Metrics	3-4	feature	Morphological transformations based on any cubed features
Landscape Metrics	3-4	feature	Quantification of spatial patterns based on any cubed features
Sampling	/	feature	Point-based extraction of features for training/validation purposes
Continuous Field ImproPhe	4	ARD	Increase the spatial resolution of coarse continuous fields (like Land Surface Phenology) to Level 2 ARD resolution using the ImproPhe code
Level 2 ImproPhe	2	ARD	Increase the spatial resolution of lower resolution Level 2 ARD using higher resolution Level 2 ARD using the ImproPhe code
udf	3-4	ARD	Custom processing using User-Defined Functions