Skip to content
Kharita Challenges

Problems

Real geospatial problems, graded automatically. Choose a track, a level and what you want to hand in.

1 of 59 problems

Pick one for me
Track
Spatial Analysis0 problemsPostGIS / SQL0 problemsPython1 problemRemote Sensing0 problemsCartography0 problemsWeb GIS0 problemsData Management1 problemGIS Architecture0 problems
Level
Beginner1 problemIntermediate0 problemsAdvanced1 problemExpert0 problems
Hand in
SQL0 problemsPython1 problemGeoJSON1 problemAnswers1 problemSchema0 problemsDecisions0 problemsDataset file2 problems
Category
Data preparation1 problemData quality0 problemsSpatial analysis1 problemRaster analysis0 problemsCartography1 problemDecision support1 problemGeospatial systems0 problemsWeb delivery1 problem
Sign in to track progress
AdvancedData preparationPythonClear all
  1. Not started, Repair the park intake without losing its second partData preparationPython

    Repair an invalid park outline while preserving every valid polygon component.

    Data ManagementadvancedDifficulty: advanced370 XP~55 min6 checks

    You hand in a Python script.

    Dataset

    • Cape Town park polygons, geometry intake · Polygon · 11 features · EPSG:4326

    What you’ll do

    • Repair topology without discarding area.
    • Handle null geometry and source precedence before release.
    • Deliver a uniform polygon type.
    data-preparationcape townpythonAlso trains Python
    Open problem