Table 1 Summary of the relationships between the changes in population and urban climate.

From: Urban climate changes during the COVID-19 pandemic: integration of urban-building-energy model with social big data

a

 

Tokyo Sta (To)

Yokohama Sta (Yo)

Chiba Sta (Ch)

Omiya Sta (Om)

Mito Sta (Mi)

Takasaki Sta (Ta)

Utsunomiya Sta (Us)

Population (2020/2019×100, %)

39.4

50.0

66.8

79.3

86.7

80.6

83.6

EC and CO2 (COVID/no-COVID×100, %)

30.2

37.8

56.0

73.1

72.0

67.7

75.0

QF (COVID/no-COVID×100, %)

32.8

62.4

65.1

82.1

79.8

77.1

83.6

ΔT (COVID – no-COVID, °C)

−0.21

−0.08

−0.08

−0.02

0.03

−0.02

−0.01

b

 

Sapporo (Hokkaido)

Sendai (Miyagi)

Tokyo (Tokyo)

Nagoya (Aichi)

Kyoto (Kyoto)

Osaka (Osaka)

Kobe (Hyogo)

Fukuoka (Fukuoka)

Population (2020/2019×100, %)

56.6

59.1

39.4

40.1

45.4

38.4

55.3

49.7

ΔEC (W floor m−2)

−6.7

−6.3

−12.3

−9.3

−4.2

−9.6

−6.9

−7.8

ΔQF (W m−2)

−22.5

−21.2

−75.6

−30.8

−2.7

−31.6

−23.2

−25.9

ΔT (°C)

−0.07

−0.07

−0.21

−0.10

−0.01

−0.10

−0.07

−0.08

  1. At seven railway stations on the Kanto Plain, including a the Tokyo Metropolitan Area (TMA) (see Fig. 1f) and for b nine major cities in Japan (see Fig. 3).
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