站点

模型

变异时间

最小SIC

参数估计

环县

ⅱ

1986

101.54

μ₁ = 8.32, μ₂ = 9.44, σ² = 0.57

平凉

ⅵ

1996

63.31

λ₁ = 8.47, λ₂ = 8.43, β = 0.02

西峰镇

ⅵ

1996

87.37

λ₁ = 8.11, λ₂ = 8.03, β = 0.03

长武

ⅱ

1993

68.58

μ₁ = 9.11, μ₂ = 9.76, σ² = 0.41