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Elevation in Duaer

In Duaer: Ground height above sea level for a place or coordinates, from the Copernicus 90 m digital elevation model. One successful search uses 1 credit.

What you get

Duaer Elevation returns the ground height above sea level for one point, from the Copernicus 90 m digital elevation model. Give a place name or exact coordinates.

Pick Duaer Data → Elevation in the node creator, or open the data market. Related: Place lookup, Solar and climate (NASA POWER).

When to use it

  • Check the altitude of a city or a site.
  • Add height to coordinates in a survey table.

When not to use it

Search on the canvas

  1. Open the node creator and pick Duaer Data → Elevation.
  2. Fill Place (such as Lhasa), or Latitude and Longitude.
  3. Limit defaults to 10, max 20. Execute.

A search uses 1 credit only when it returns rows. No rows, wrong input, or an upstream failure uses 0.

Call the API

  • GET https://api.duaer.com/v1/data/elevation?place=Lhasa
  • Authorization: Bearer <Duaer key>

The call skill below matches Copy skill in the Duaer data market, with parameters, examples, and result fields.

Call skill

Same text as Copy skill.

---
name: duaer-elevation
description: >-
  Duaer Elevation. Ground height above sea level for a place or coordinates, from the Copernicus 90 m digital elevation model.
  One successful search uses 1 Duaer credit.
---

# Duaer Elevation

Duaer Elevation returns the ground height above sea level for one point, from the Copernicus 90 m digital elevation model. Give a place name or exact coordinates.

## When to use

- Check the altitude of a city or a site.
- Add height to coordinates in a survey table.

## When not to use

- Coordinates for a name. Use https://skills.duaer.com/geocoding.md.
- Weather at altitude. Use https://skills.duaer.com/weather.md.

## Call

`GET https://api.duaer.com/v1/data/elevation?place=Lhasa`

Header: `Authorization: Bearer <Duaer key>`

Use an account key or a model API key.

Get a Duaer key: https://skills.duaer.com/keys.md

## Parameters

Provide `place`, or `latitude` and `longitude`.

- `place` — Place name, such as Lhasa. Duaer looks up its coordinates.
- `latitude`, `longitude` — Optional. Coordinates instead of a place name.

## Examples

- `GET https://api.duaer.com/v1/data/elevation?place=Lhasa` — height of Lhasa.
- `GET https://api.duaer.com/v1/data/elevation?latitude=27.9881&longitude=86.925` — height near the summit of Everest.

## Result

The response is `{ "items": [...] }`. Each item has `source`, `title`, `url`, and `summary`, plus:

- `place` — resolved place name.
- `latitude`, `longitude` — the point used.
- `elevationM` — metres above sea level.

The search returns one row.

Fields without a value are left out.

## Credits

A search that returns at least one row uses 1 credit.
An empty search, a search that finds nothing, or a failed search uses 0.
Wrong input returns 400 with a message and uses 0.
No remaining credits returns 402 and does not search.
A missing key returns 401.

## Related

- https://skills.duaer.com/geocoding.md — Duaer Place lookup
- https://skills.duaer.com/nasa-power.md — Duaer Solar and climate (NASA POWER)

Questions

How many credits does a Elevation search use in Duaer?

One credit when Duaer returns rows. A search with no rows or an error uses 0.

How precise is Duaer Elevation?

Duaer Elevation uses the Copernicus 90 m digital elevation model, so it is a grid value, not a surveyed spot height.

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