# Correction to: On the Applicability of the Expected Waiting Time Method in Nonstationary Flood Design

Correction to: Water Resour Manag

The original version of this article unfortunately contains mistakes in equations 1 and 2. The mistakes and corrections is described below:

$$f(x)=P\left(X=x\right)={p}_x\prod \limits_{t=1}^{x-1}\left(1-{p}_t\right)x=1,2,\dots, {x}_{\mathrm{max}}$$
(1)
$$m=E(X)=\sum \limits_{x=1}^{x_{\mathrm{max}}} xf(x)=\sum \limits_{x=1}^{x_{\mathrm{max}}}x\left(1-{G}_{Z,t}\left({z}^{EWT}(m)|{\boldsymbol{\theta}}_x\right)\right)\prod \limits_{t=1}^{x-1}{G}_{Z,t}\left({z}^{EWT}(m)|{\boldsymbol{\theta}}_t\right)$$
(2)

Should be:

$$f(x)=P\left(X=x\right)={p}_x\prod \limits_{t=1}^{x-1}\left(1-{p}_t\right)\kern1em x=1,2,\dots, {x}_{\mathrm{max}}$$
(1)
$$m=E(X)=\sum \limits_{x=1}^{x_{\mathrm{max}}} xf(x)=\sum \limits_{x=1}^{x_{\mathrm{max}}}x\left(1-{G}_{Z,x}\left({z}^{EWT}(m)|{\boldsymbol{\theta}}_x\right)\right)\prod \limits_{t=1}^{x-1}{G}_{Z,t}\left({z}^{EWT}(m)|{\boldsymbol{\theta}}_t\right)$$
(2)

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### Corresponding author

Correspondence to Qinghua Luan.