# METRo article (METRo)

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This page is dedicated to the article published in the Journal of applied meteorology[1] and who is at the foundation of METRo.

## Information Edit

### Runoff Edit

At the page 2029, the (10a) formula shows c=0.003 s-1. How this value is true only for the water (liquid) case. In the case of the snow/ice runoff, the value is c=0.0003 s-1.

In fact, the 10 factor for the snow comes from the assumption that the snow is removed at the 10 times more slowly than the water.

## Error Edit

For now, there is only one error that have been noted in the METRo article. It consists of a sign of one of the factor of the equation (13) at the page 2030:

```$F = a_{4}S^{4}_{t} + a_{3}S^{3}_{t} + a_{2}S^{2}_{t} + a_{1}S^{1}_{t} + a_{0}$
```

The value for $a_{0}$ is negative: $a_{0}=$ - $0.435$

## Reference Edit

1. Crevier, L.-P., and Y. Delage. METRo: A New Model for Road-Condition Forecasting in Canada . Journal of applied meteorology Vol. 40, November 2001, pages 2026-2037.

 This page is part of the documentation of the METRo software. Back to the table of content.