Night Sky Brightness Map of North Holland with Greenhouse Lighting, 2011-2012

A darkness map from the Dutch Ministry of the Interior and Kingdom Relations shows sky brightness in the province of North Holland for 2011 and 2012 with greenhouse lighting active. The dataset incorporates zenith measurements from 225 locations, plus prior data from Amsterdam and Texel, to model light pollution within a 30-kilometer radius. It is available as PNG and WMS files under a CC-PDM-1.0 license.

Use Cases

• Modeling light pollution spread from agricultural sources based on greenhouse lighting data.
• Analyzing regional darkness levels for astronomical observation site selection based on zenith brightness measurements.
• Studying the impact of urban and agricultural light sources on the night environment based on the 30-kilometer radius influence model.

Strengths

• Includes measurements from 225 specific locations within the defined study area.
• Integrates historical data from Amsterdam and Texel, providing a broader temporal and spatial context.
• Explicitly models the influence radius of light sources at approximately 30 kilometers.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment.
• Last update date is unknown; freshness unverified.

Provenance

Source

Ministerie van Binnenlandse Zaken en Koninkrijksrelaties (Dutch Ministry of the Interior and Kingdom Relations)

Collection Method

Direct measurements of sky brightness at the zenith from 225 locations.

Time Range

2011-2012

Freshness

Data covers 2011-2012; last update is unknown.

Geography

Province of North Holland, Netherlands, including Amsterdam and Texel.