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move snowfall figure #502

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Nov 14, 2024
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move snowfall figure #502

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14 changes: 1 addition & 13 deletions docs/model_docs/vertical/sbm.qmd
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Expand Up @@ -15,23 +15,11 @@ The sections below describe the working of the SBM vertical concept in more deta

## Precipitation
The division between solid and liquid precipitation (snowfall and rainfall, respectively) is
performed based on the air temperature. If the temperature is below a threshold temperature
(`tt`), precipitation will fall as snow. An interval parameter (`tti`) defines the range over
which precipitation is partly falling as snow, and partly as rain. Snowfall is added to the
snowpack, where it is subject to melting and refreezing (see the section on [snow and
performed based on the air temperature (see the section on [snow and
glaciers](./shared_processes.qmd#snow-and-glaciers)). The amount of rainfall is subject to
[interception](#rainfall-interception), and ultimately becomes available for
[evaporation](#evaporation) and/or [soil processes](#soil-processes).

![Division between snow and precipitation based on the threshold temperature](../../images/snowfall.png)

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# Figure created using python: # hide
# https://gist.github.com/JoostBuitink/21dd32e71fd1360117fcd1c532c4fd9d#file-snowfall_fig-py # hide
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## Rainfall interception

Two different interception models are available: the analytical Gash model, and the modified
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12 changes: 10 additions & 2 deletions docs/model_docs/vertical/shared_processes.qmd
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Expand Up @@ -8,8 +8,16 @@ title: Shared processes

If the air temperature, $T_a$, is below a user-defined threshold `tt` $\SIb{}{\degree C}$
precipitation occurs as snowfall, whereas it occurs as rainfall if $T_a ≥ \mathrm{tt}$. A
another parameter `tti` defines how precipitation can occur partly as rain or snowfall (see the
figure below). If precipitation occurs as snowfall, it is added to the dry snow component
another parameter `tti` defines how precipitation can occur partly as rain or snowfall.

![Division between snow and precipitation based on the threshold temperature](../../images/snowfall.png)

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# Figure created using python: # hide
# https://gist.github.com/JoostBuitink/21dd32e71fd1360117fcd1c532c4fd9d#file-snowfall_fig-py # hide
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If precipitation occurs as snowfall, it is added to the dry snow component
within the snow pack. Otherwise it ends up in the free water reservoir, which represents the
liquid water content of the snow pack. Between the two components of the snow pack,
interactions take place, either through snow melt (if temperatures are above a threshold `tt`)
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