Reference grids (vector) and their centroids for harmonization of analysis

This dataset contains reference grids (vector) and their centroids for harmonized analysis. All the files are geoparquet, they are described below. Production procedure is available at projects GitHub repository (https://github.com/aavotins/HiQBioDiv/blob/main/Templates/TemplateGrids_Vector.R): "tikls100_sauzeme.parquet" contains terrestrial territory of Latvia divided in 100-by-100 m polygon grid cells. Contains fields: "id" feature ID; "yes" a fields with values "1"; "tks50km" with ID's of topographic map of Latvia pages (TKS-93 M:50000); "rinda300" with ID's matching file "tikls300_sauszeme.parquet"; "ID1km" with ID's matching file "tikls1km_sauszeme.parquet"; "rinda500" with ID's matching file "tikls500_sauszeme.parquet"; "geom" a {sf} geometry definition field. "tikls300_sauzeme.parquet" contains terrestrial territory of Latvia divided in 300-by-300 m polygon grid cells. Contains fields: "rinda300" feature ID; "x" a {sf} geometry definition field. "tikls500_sauzeme.parquet" contains terrestrial territory of Latvia divided in 500-by-500 m polygon grid cells. Contains fields: "rinda500" feature ID; "tks50km" with ID's of topographic map of Latvia pages (TKS-93 M:50000); "x" a {sf} geometry definition field. "tikls1km_sauzeme.parquet" contains terrestrial territory of Latvia divided in 1000-by-1000 m polygon grid cells. Contains fields: "ID1km" feature ID; "yes" a fields with values "1"; "tks50km" with ID's of topographic map of Latvia pages (TKS-93 M:50000); "geometry" a {sf} geometry definition field. "pts100_sauszeme.parquet" contains centroids of file "tikls100_sauszeme.parquet" with their attribute fields; "pts300_sauszeme.parquet" contains centroids of file "tikls300_sauszeme.parquet" with their attribute fields and additionally "tks50km" with ID's of topographic map of Latvia pages (TKS-93 M:50000); "pts500_sauszeme.parquet" contains centroids of file "tikls500_sauszeme.parquet" with their attribute fields; "pts1000_sauszeme.parquet" contains centroids of file "tikls1km_sauszeme.parquet" with their attribute fields; "tks93_50km.parquet" contains topographic map of Latvia pages (TKS-93 M:50000). Contains fields: "NOSAUKUMS" with a page name; "NUMURS" with a page number; "Shape_Length" an attribute from ESRI File Geodatabase; "Shape_Area" an attribute from ESRI File Geodatabase; "Shape" a {sf} geometry definition field; All the above mentioned files are stored also as layers in geopakage file "vector_grids.gpkg" having the same names and attributes.