Method evidence record

Sky View Factor Analysis

Sky view factor (SVF) analysis quantifies the fraction of the overlying hemisphere of sky that is visible from a given point on the ground, ranging from 1.0 in a wide-open field to near 0 at the bottom of a deep, narrow street canyon. It is a central geometric descriptor in urban climatology because the amount of visible sky governs how much longwave radiation a surface can lose at night, directly shaping the urban heat island. The measure was put on a rigorous footing by Timothy Oke's 1981 work linking canyon geometry to nocturnal urban warming.

Sources recorded, not reviewed

Source record

Citations copied verbatim from the method’s source record. No claim-level verification is inferred from them.

Sky View Factor Analysis (Fraction of Visible Sky in Urban Geometry)

Taxonomic method record · process-pipeline / urban-studies

Oke, T. R. (1981). Canyon geometry and the nocturnal urban heat island: comparison of scale model and field observations. Journal of Climatology, 1(3), 237–254. · DOI 10.1002/joc.3370010304

Open full method

Curated claims

Claims persisted in the evidence ledger, each with its own assessment.

No curated claims yet

This view does not invent a claim assessment when the ledger has none.

Related methods

Generated from the method graph and shown as machine-suggested relations — no evidence claim is inferred.

Same method familyIsovist Analysismachine-suggested · Relational suggestion, not evidence.Same method familyUrban Canyon Analysismachine-suggested · Relational suggestion, not evidence.Same method familyUrban Form Morphometricsmachine-suggested · Relational suggestion, not evidence.Same method familyUrban Heat Island Analysismachine-suggested · Relational suggestion, not evidence.