Reference grids (raster) for hamonization of analysis

Description:These Reference grids are derived from a vector dataset. The reference grids cover the whole terrestrial territory of Latvia and are consistent with each other, meaning that for example five 100 m gridded cells match a 500m grid cell in width. Layers contain only presence (administrative territory) cells, that are coded with 1. Due to rasterisation procedure, there are mismatches at the borders with some 10m cells marked as within Latvia, not present in larger resolution layers. This is partially a heritage from earlyer analysis befor this project, that are sustained for a direct comperability of the results and the reliability of the information at the edges.

Filestructure:

LV{resolution}_{extension of bounding box}

 resolution is either "10m", "100m" or "500m", representing resolutions of input data, analysis and some of preprocessing steps.

 extensions of bounding box is 10 km around the official administrative borders to ensure necessary space in processing.

File format:The layers are gridded geoTiff files and can be loaded in any conventional Graphical Information System or analytical programming languages (e.g. R or python). 

Geographic projection:We use the LKS-92 / Latvia TM by default for all layers in HiQBioDiv. Sourcecode:The code to reproduce the layers is available at projects Github repository.