Official Journal of the Asia Oceania Geosciences Society (AOGS)
Table 1 Trend types of non-stationary GEV model
Trend types | Parameter forms |
|---|---|
\(\mu\) linear trend, \(\sigma\) no trend (AL) | \(\mu \left(t\right)={\mu }_{0}+{\mu }_{1}t, \sigma \left(t\right)={\sigma }_{0}\) |
\(\mu\) parabolic trend, \(\sigma\) no trend (AP) | \(\mu \left(t\right)={\mu }_{0}+{\mu }_{1}t+{\mu }_{2}{t}^{2}, \sigma \left(t\right)={\sigma }_{0}\) |
\(\mu\) no trend, \(\sigma\) linear trend (BL) | \(\mu \left(t\right)={\mu }_{0}, \sigma \left(t\right)={\sigma }_{0}+{\sigma }_{1}t\) |
\(\mu\) no trend, \(\sigma\) parabolic trend (BP) | \(\mu \left(t\right)={\mu }_{0}, \sigma \left(t\right)={\sigma }_{0}+{\sigma }_{1}t+{\sigma }_{2}{t}^{2}\) |
\(\mu\) linear trend, \(\sigma\) linear trend (DL) | \(\mu \left(t\right)={\mu }_{0}+{\mu }_{1}t, \sigma \left(t\right)={\sigma }_{0}+{\sigma }_{1}t\) |