Table 2 Summary of GHS-UCDB dimensions, variables and temporal coverage.

From: The Multi-temporal and Multi-dimensional Global Urban Centre Database to Delineate and Analyse World Cities

Dimensions

Variable

Temporal coverage

General characteristics

Identification

2015

Extension

Location

Name

Multi-temporal urban centre spatial domain

Number

1975

1990

2000

2015

Area

Geography

Elevation

2015

Biome

Climate

1986–2010

Soil

2015

River basin

Temperature

  

2000

2015

Precipitation

Socio-economic

Resident population

1975

1990

2000

2015

Built-up area

Night time light

2015

GDP

 

1990

2000

2015

Development

2018

Accessibility & remoteness

2015

Environment

Greenness

 

1990

2000

2015

Pollutants’ emission

1975

1990

2000

2015

Pollutants’ concentration

2000

2005

2010

2015

DRR

Floods (exposure)

1975

1990

2000

2015

Earthquake (exposure)

Storm surge (exposure)

Maximum magnitude of heatwaves

1980–2010

SDG

Land Use Efficiency (11.3.1)

1990–2015

Open spaces (11.7.1 –proxy)

2015