# Annual Total Flow Recorder

## General Description

For each scenario, record the total flow in each year across a list of nodes. Output from data property has shape: (years, scenario combinations).

A list of factors can be provided to scale the total flow (e.g. for calculating operational costs).[ ](https://pywr.github.io/pywr-docs/master/api/generated/pywr.recorders.NumpyArrayNodeCurtailmentRatioRecorder.html)[API Reference](https://pywr.github.io/pywr-docs/master/api/generated/pywr.recorders.AnnualTotalFlowRecorder.html#pywr.recorders.AnnualTotalFlowRecorder)

## Attributes

<table><thead><tr><th width="155">Name</th><th width="395">Description</th><th>Required</th></tr></thead><tbody><tr><td>model</td><td></td><td></td></tr><tr><td>name</td><td>The name of the recorder</td><td>Optional</td></tr><tr><td>nodes</td><td>List of <em>pywr.core.Node</em> instances to record</td><td>Optional</td></tr><tr><td>factors</td><td>List of factors to apply to each node</td><td>Optional</td></tr></tbody></table>

## Example

coming soon...

```json
{

}
```


---

# Agent Instructions: Querying This Documentation

If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://water-strategy.gitbook.io/waterstrategy/modeling-basics/recorders/statistical-recorders/annual-total-flow-recorder.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.