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Disp docs map layers changes #162

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ccfleming417 merged 2 commits into from
Feb 19, 2025
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Disp docs map layers changes #162

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Disp docs map layers changes
Feb 19, 2025
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Merge pull request #161 from asfadmin/christy
ccfleming417 Feb 19, 2025
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27 changes: 16 additions & 11 deletions markdown-docs/vertex/displacement.en.md
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Expand Up @@ -9,6 +9,19 @@ The Displacement Tool provides the ability to visualize and interact with these
Go to [Displacement Tool](https://displacement.asf.alaska.edu/) to begin using the tool. Note that the Displacement Tool is also available by going to [Vertex](https://search.asf.alaska.edu), and selecting Displacement from the Search Type dropdown.

## Beginning your Displacement Search
### Map Base Layers
The available base map layers can assist you in selecting your AOI. Displacement products are available in areas where Deformation or Velocity data is present.
In the top left corner of the map, you may click the checkbox to select your desired map layer.

#### Cumulative Velocity
This is a derived layer based on the cumulative deformation layer from the displacement products.
There are separate Ascending and Descending variants, and the layer will update to display the correct direction based on your search filters.

#### Cumulative Deformation
This layer is based on shortwave displacement.
There are separate Ascending and Descending variants, and the layer will update to display the correct direction based on your search filters.

### Selecting AOIs
When you first access the Displacement Tool, the point selector is active. You may click your desired point(s) on the map.
You may also click **Point** for a dropdown list. You may choose to draw a polygon, bounding box, or circle instead. When you are done adding your Areas of Interest (AOIs), click the **Draw** toggle to stop drawing. You may click it again to select more AOIs on the map.

Expand Down Expand Up @@ -41,22 +54,14 @@ Each Series is color coded. Mousing over the AOI in the AOI list, on the chart,

In the header bar, click the **Flight Direction** button to change the flight direction. Changing the flight direction will update the chart, and all selected map layers.

### Map Layers
There are additional map layers available. In the top left corner of the map, you may click the checkbox to select your desired map layer.
Descriptions of each layer are below.

#### Cumulative Deformation
This layer is based on shortwave displacement.
There are separate Ascending and Descending variants, and the layer will update to display the correct direction based on your search filters.

#### Cumulative Velocity
This is a derived layer based on the cumulative deformation layer from the displacement products.
There are separate Ascending and Descending variants, and the layer will update to display the correct direction based on your search filters.
### Additional Map Layers
In the top left corner of the map, there are additional map layers available. You may click the checkbox to select your desired layer.

#### Rollout
This layer provides color-coded priority for Displacement Products creation by region.
Regions are prioritized 1 through 3, with 1 being the highest processing priority.
Note that some sub-regions may be de-prioritized based on snow cover, vegetation, or other factors.
There are separate Ascending and Descending variants, and the layer will update to display the correct direction based on your search filters.

### Search Tools
There are additional options available in the top right of the header bar.
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