入门
在 Duaer 里查海拔高程
在 Duaer 里：按地名或坐标查询地面海拔，数据来自哥白尼 90 米数字高程模型。一次成功查询用 1 额度。
能拿到什么
Duaer 数据市场里的「海拔高程」：按地名或坐标查询地面海拔，数据来自哥白尼 90 米数字高程模型。查到结果时用 1 额度，结果交给数字组织的下一个节点。
从节点创建器选 Duaer 数据 → 海拔高程，或打开 数据市场。相关：地名查询、太阳辐射与气候（NASA POWER）。
适合做什么
- 查城市或场址的海拔。
- 给调查表里的坐标补上高程。
在画布里检索
- 打开节点创建器，选 Duaer 数据 → Elevation。
- 填 Place（如 Lhasa），或填 Latitude + Longitude。
- Limit 默认 10，最大 20。执行。
查到结果才扣 1 额度；没有结果、输入有误或上游失败都不扣。
用 API 调用
- GET https://api.duaer.com/v1/data/elevation?place=Lhasa
- Authorization: Bearer <Duaer key>
下方是与数据市场「复制技能」相同的英文技能，含参数、示例与返回字段。
调用技能（英文）
与数据市场「复制技能」一致。
---
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)
常见问题
Duaer 的海拔高程检索扣多少额度？
查到结果时扣 1 额度；没有结果或出错不扣。
Duaer 海拔高程的精度如何？
Duaer 海拔高程使用哥白尼 90 米数字高程模型，是网格平均值，不是测绘点高程。
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