<p>I think you are asking a question with a variety of different constraints. I'll tackle a couple of them.</p>

<blockquote>
  <p>What is the simplest atmospheric model to operate?</p>
</blockquote>

<p>That would be the <a href="https://math.nyu.edu/faculty/kleeman/zero_dim_ebm.html" rel="nofollow noreferrer">Zero-dimensional energy balance model</a>. It has almost zero resolution and no temporal capacity.</p>

<blockquote>
  <p>What is an atmospheric model that can be easily installed and run?</p>
</blockquote>

<p>The <a href="https://github.com/wrf-model/WRF" rel="nofollow noreferrer">Weather Research and Forecasting (WRF) model</a> is a very flexible, limited area model. <a href="https://www.forbes.com/sites/marshallshepherd/2020/02/24/a-professor-ran-a-weather-prediction-model-on-a-50-computer/#43bfce0e5f65" rel="nofollow noreferrer">This model has successfully been run on what amounts to a child's toy.</a></p>

<blockquote>
  <p>What is a global atmospheric model that can be run for a long period of time, but can easily be run?</p>
</blockquote>

<p>While I have never run it myself, it sounds like you may be looking for <a href="https://www.ictp.it/research/esp/models/speedy.aspx" rel="nofollow noreferrer">SPEEDY</a>. I have not heard it is the most numerically stable model, and I cannot attest to how easy it is to run. From the documentation, it seems like it can be run one year at a time, but I was once told that it is typically stable in the range of months or even days.</p>

<p>Atmospheric models are not like a game you can just install and run like MS Word or a game. With almost any atmospheric model, a knowledge of programming in a Linux/Unix framework is paramount.</p>

CC BY-SA 4.0
2020-04-12T12:26:02.697Z
This was very helpfull!
I am currenty testing with WRF, apparently when using WRFPortal this is managable.
I will also try SPEEDY
yair suari
CC BY-SA 4.0
2020-04-11T19:16:47.413Z
2020-04-11T19:16:47.413Z
BarocliniCplusplus
<p>For teaching purposes I am looking for an atmospheric model that can be easily installed and the input data can be easily read and prepared. 
Preferably I would like to run a global low resolution simulation of ~5 years. Naturally, I know this model will not have high forecasting accuracy.
Is there a model that suits this criteria?</p>

<p>Thanks for the help!</p>

CC BY-SA 4.0
2020-04-05T16:28:08.230Z
Thanks for your help!
what I intend to do is manipulate the input, so I will naturally run those several years in (probably) 5 day cycles. For the duration of several years.
Thats why I also wrote "input data can be easily read and prepared." if someone already did interpolations to model grid it will be the perfect thing.
Thanks again!
Yair
yair suari
CC BY-SA 4.0
2020-04-11T13:25:48.753Z
Should it be a global or regional model? It should a rather a climate model? Does the model mentioned [in this answer](https://earthscience.stackexchange.com/a/19296/5594) help you?
daniel.heydebreck
CC BY-SA 4.0
2020-04-12T12:29:50.623Z
Thanks for that.
The planet simulator is also a climate model but I am looking for more of a short term forecast.
I think I will start with WRF Portal
yair suari
<geophysics><models><weather-forecasting><fluid-dynamics>
What is the simplest meteorological model to operate?
yair suari
# What is the simplest meteorological model to operate?

(Asked by: username_0 on 2020-04-04)

For teaching purposes I am looking for an atmospheric model that can be easily installed and the input data can be easily read and prepared.
Preferably I would like to run a global low resolution simulation of ~5 years. Naturally, I know this model will not have high forecasting accuracy.
Is there a model that suits this criteria?

Thanks for the help!

**Tags:** geophysics, models, weather-forecasting, fluid-dynamics

> **Comments:**
> **username_0**: Thanks for your help! what I intend to do is manipulate the input, so I will naturally run those several years in (probably) 5 day cycles. For the duration of several years. Thats why I also wrote "input data can be easily read and prepared." if someone already did interpolations to model grid it will be the perfect thing. Thanks again! username_0  
> **username_1**: Should it be a global or regional model? It should a rather a climate model? Does the model mentioned [in this answer](https://earthscience.stackexchange.com/a/19296/5594) help you?  
> **username_0**: Thanks for that. The planet simulator is also a climate model but I am looking for more of a short term forecast. I think I will start with WRF Portal  

---

## 1 answers

### Answer by username_2 on 2020-04-11. Score: 4 | Accepted answer

I think you are asking a question with a variety of different constraints. I'll tackle a couple of them.

> What is the simplest atmospheric model to operate?

That would be the [Zero-dimensional energy balance model](https://math.nyu.edu/faculty/kleeman/zero_dim_ebm.html). It has almost zero resolution and no temporal capacity.

> What is an atmospheric model that can be easily installed and run?

The [Weather Research and Forecasting (WRF) model](https://github.com/wrf-model/WRF) is a very flexible, limited area model. [This model has successfully been run on what amounts to a child's toy.](https://www.forbes.com/sites/marshallshepherd/2020/02/24/a-professor-ran-a-weather-prediction-model-on-a-50-computer/#43bfce0e5f65)

> What is a global atmospheric model that can be run for a long period of time, but can easily be run?

While I have never run it myself, it sounds like you may be looking for [SPEEDY](https://www.ictp.it/research/esp/models/speedy.aspx). I have not heard it is the most numerically stable model, and I cannot attest to how easy it is to run. From the documentation, it seems like it can be run one year at a time, but I was once told that it is typically stable in the range of months or even days.

Atmospheric models are not like a game you can just install and run like MS Word or a game. With almost any atmospheric model, a knowledge of programming in a Linux/Unix framework is paramount.

> **Comments:**
> **username_0**: This was very helpfull! I am currenty testing with WRF, apparently when using WRFPortal this is managable. I will also try SPEEDY  

---

