Flood Hazard Zonation for 79 Population Centers in Colombia with 2-Year Return Period

IDEAM provides flood hazard zonation maps for a 2-year return period across 79 populated centers in Colombia. The data classifies areas into low, medium, or high flood threat levels. The last update was recorded on 2026-05-22 05:47:13, though the description states updates are performed occasionally.

Use Cases

• Classifying flood threat levels (AMENAZA) for specific populated centers (CENPOB) using geospatial boundaries (the_geom).
• Aggregating total at-risk area (AREA_TOT, SHAPE_AREA) by municipality (MUNICIPIO) or department (DEPARTAMEN).
• Analyzing the spatial distribution and perimeter (SHAPE_LEN, SHAPE_LENG) of different hazard zones (AMENAZA).

Strengths

• Contains explicit hazard classifications (AMENAZA) for 79 distinct populated centers (CENPOB).
• Includes detailed geospatial geometry (the_geom) and administrative location columns (MUNICIPIO, DEPARTAMEN).
• Data is provided in multiple machine-readable formats (CSV, JSON, XML, RDF).

Limitations

• Row count and total dataset size are unknown, limiting suitability assessment.
• The data provider (IDEAM) explicitly states the data is raw, unvalidated, and may contain errors or transmission delays.
• Description metadata is limited; actual data quality requires manual inspection after download.

Provenance

Source

www.datos.gov.co, likely originating from the Instituto de Hidrología, Meteorología y Estudios Ambientales (IDEAM).

Collection Method

Likely generated from sensor networks and inter-administrative agreements, as described in the raw data disclaimer.

Freshness

Last updated 2026-05-22 05:47:13; updates are performed occasionally.

Geography

79 populated centers within Colombia, as indicated by department (DEPARTAMEN) and municipality (MUNICIPIO) columns.