Raster Data Specifications

raster data consists of a grid of pixels, where each pixel represents a value at a specific location within optioneer, raster data is typically used for base maps, elevation, slope, bathymetry, or population density supported file types format extension notes geotiff geotiff, tif, tiff open source, widely supported ❌ not supported netcdf, ascii grid ( asc / ascii), and esri grid formats are not currently accepted uploading raster data open project layers from the left hand panel select raster as the data type select add data choose upload dataset to import a file from your computer limits up to 5gb per file before you upload use a single file covering the full project area where possible, rather than many smaller files avoid special characters in file and layer names for elevation or bathymetry data, ensure positive values represent above sea level and negative values represent below sea level make sure your file opens cleanly before uploading — if you have access to a gis tool such as qgis, use it to verify the file first keep metadata minimal — optioneer only needs pixel values and spatial reference information gis users use wgs84 (epsg 4326) as your coordinate reference system and use meters rather than feet where possible when downsampling, provide average values ensure the no data value is explicitly set, use float as the data type, and ensure there is no skew in the raster avoid proprietary formats in favor of geotiff troubleshooting if your data fails to upload or process correctly, try the following if you are unsure about any of these steps, contact your customer success representative and they can assist clip to the required extent — avoid uploading large regional or global datasets start with the smallest area needed for your project check for corrupt or missing values — ensure no pixels contain corrupt entries, and that the no data value is explicitly set in your file verify alignment — check that the raster aligns correctly with your other data sources before uploading sanitize names — remove special characters from file and layer names replace symbols such as & with plain text equivalents like and if problems persist, contact your customer success representative with a description of the error and the steps already attempted