Raster Analyst — Associate

Six problems on three delivered rasters — an acceptance check, a class histogram, a zonal share, a band index with nodata handled, a zonal mean across a projection boundary, and an area-below-threshold on a geographic grid — so that a pass means the holder reads rasters correctly and reports numbers that survive review.

90 minutesPass at 70/100

Sections

Weighted toward the skills the credential claims. The problems appear when the clock starts.

Reading a raster
Data Management2 problems
30%
Zonal statistics and band maths
Remote Sensing3 problems
40%
From pixels to area
Spatial Analysis1 problem
30%

Conditions

Sit it alone. Documentation is allowed; AI assistants and help from anyone else are not.
Any desktop GIS, notebook or command-line tool may be used; the numbers are graded, not the tool.
The rasterio, GDAL and QGIS documentation may be consulted. Do not consult other people during the sitting.
Each problem is submitted once; Run is unlimited and never graded.
Ninety minutes on one clock for all six problems; unanswered problems score zero.

On passing

Kharita Certified Raster Analyst (Associate)

Attests that the holder can accept, summarise and analyse raster data correctly: nodata and types handled, categorical and continuous bands treated as what they are, zonal statistics computed without resampling the pixels, and pixel counts turned into ground area on any grid.

Valid for: 36 months
Level: associate
Verification: Public page