![CSP/ERGo/1_0/US/mTPI](https://developers.google.com/earth-engine/datasets/images/CSP/CSP_ERGo_1_0_US_mTPI_sample.png)

Dataset Availability
:   2006-01-24T00:00:00Z--2011-05-13T00:00:00Z

Dataset Producer
:


    [Conservation Science Partners](https://www.csp-inc.org/)

Tags
:
    [aspect](https://developers.google.com/earth-engine/datasets/tags/aspect) [csp](https://developers.google.com/earth-engine/datasets/tags/csp) [elevation](https://developers.google.com/earth-engine/datasets/tags/elevation) [elevation-topography](https://developers.google.com/earth-engine/datasets/tags/elevation-topography) [ergo](https://developers.google.com/earth-engine/datasets/tags/ergo) [geophysical](https://developers.google.com/earth-engine/datasets/tags/geophysical) [landforms](https://developers.google.com/earth-engine/datasets/tags/landforms) [slope](https://developers.google.com/earth-engine/datasets/tags/slope) [topography](https://developers.google.com/earth-engine/datasets/tags/topography) [us](https://developers.google.com/earth-engine/datasets/tags/us)

#### Description

The mTPI distinguishes ridge from valley forms. It is calculated using
elevation data for each location subtracted by the mean elevation within a
neighborhood. mTPI uses moving windows of radius (km): 115.8, 89.9, 35.5,
13.1, 5.6, 2.8, and 1.2. It is based on the USGS's 10m NED DEM (available
in EE as USGS/NED).

The Conservation Science Partners (CSP) Ecologically Relevant Geomorphology
(ERGo) Datasets, Landforms and Physiography contain detailed, multi-scale
data on landforms and physiographic (aka land facet) patterns. Although
there are many potential uses of these data, the original purpose for these
data was to develop an ecologically relevant classification and map of
landforms and physiographic classes that are suitable for climate adaptation
planning. Because there is large uncertainty associated with future climate
conditions and even more uncertainty around ecological responses, providing
information about what is unlikely to change offers a strong foundation for
managers to build robust climate adaptation plans. The quantification of
these features of the landscape is sensitive to the resolution, so we
provide the highest resolution possible given the extent and characteristics
of a given index.

### Bands

**Bands**

Pixel size: 270 meters (all bands)

| Name | Units | Min | Max | Pixel Size | Description |
|---|---|---|---|---|---|
| `elevation` | m | -378 | 493 | 270 meters | NED-derived mTPI ranging from negative (valleys) to positive (ridges) values |

### Terms of Use

**Terms of Use**

[CC-BY-NC-SA-4.0](https://spdx.org/licenses/CC-BY-NC-SA-4.0.html)

### Citations

Citations:

- Theobald, D. M., Harrison-Atlas, D., Monahan, W. B., \& Albano, C. M.
  (2015). Ecologically-relevant maps of landforms and physiographic diversity
  for climate adaptation planning. PloS one, 10(12),
  [e0143619](https://journals.plos.org/plosone/article?id=10.1371/journal.pone.0143619)

### Explore with Earth Engine

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### Code Editor (JavaScript)

```javascript
var dataset = ee.Image('CSP/ERGo/1_0/US/mTPI');
var usMtpi = dataset.select('elevation');
var usMtpiVis = {
  min: -200.0,
  max: 200.0,
  palette: ['0b1eff', '4be450', 'fffca4', 'ffa011', 'ff0000'],
};
Map.setCenter(-105.8636, 40.3439, 11);
Map.addLayer(usMtpi, usMtpiVis, 'US mTPI');
```
[Open in Code Editor](https://code.earthengine.google.com/?scriptPath=Examples:Datasets/CSP/CSP_ERGo_1_0_US_mTPI) [US NED mTPI (Multi-Scale Topographic Position Index)](https://developers.google.com/earth-engine/datasets/catalog/CSP_ERGo_1_0_US_mTPI) The mTPI distinguishes ridge from valley forms. It is calculated using elevation data for each location subtracted by the mean elevation within a neighborhood. mTPI uses moving windows of radius (km): 115.8, 89.9, 35.5, 13.1, 5.6, 2.8, and 1.2. It is based on the USGS's 10m NED DEM (available in ... CSP/ERGo/1_0/US/mTPI, aspect,csp,elevation,elevation-topography,ergo,geophysical,landforms,slope,topography,us 2006-01-24T00:00:00Z/2011-05-13T00:00:00Z 12.54 -132.09 56.21 -60.35 Google Earth Engine https://developers.google.com/earth-engine/datasets

- [](https://doi.org/https://www.csp-inc.org/)
- [](https://doi.org/https://developers.google.com/earth-engine/datasets/catalog/CSP_ERGo_1_0_US_mTPI)