### [Earth](https://hello123.com/)

**Published:** 2026-11-03T01:00:00

**Author:** hello123

**Excerpt:** Earth 提供全球风、天气、海洋及污染状况的交互式动画地图可视化。聚合多机构数据，免费展示复杂地球科学信息，…

想观察全球风速、温度、洋流甚至气溶胶的实时分布，过去要么安装桌面软件，要么得会读 GRIB 文件。[Earth](https://earth.nullschool.net/) 把这些数据搬到浏览器里，用一张可拖动的交互式地球图呈现。该网站自 **2013 年** 起持续运行，已成为气象爱好者与地理教师常用的免费工具。

## 一文读懂 Earth 是什么

Earth 是一款开源的在线气象可视化工具，由 Cameron Beccario 创建、Nullschool Technologies Inc. 运营。该平台将超级计算机预报数据转化为可缩放的全球动画地图，覆盖风、温度、湿度、降水、气压、洋流、海面温度、气溶胶、极光、野火等十余种参数。其目标用户涵盖普通大众、学生与专业人士。

## Earth 的气象数据聚合与更新原理

Earth 的核心价值在于把分散在多个机构的地球科学数据，统一到一张可视化地图上。具体数据来源与更新频率如下：

| 数据类别 | 数据来源 | 更新频率 |
| --- | --- | --- |
| 天气与风 | GFS、NCEP | 每 3 小时 |
| 海洋表层洋流 | OSCAR | 每日  |
| 海面温度 | OI SST | 每日  |
| 海浪  | WAVEWATCH III 模型 | 每日  |
| 气溶胶与化学物质 | NASA GEOS-5、欧盟 CAMS | 每日  |
| 极光预测 | OVATION 模型 | 每日  |
| 近实时火点 | FIRMS | 每日  |

原始数据通常以 GRIB 或 NetCDF 格式发布，Earth 将其解析后转换为自研的 epak 二进制流，以支持浏览器内 WebGL 高性能渲染。时间轴可回溯至 2013 年的台风海燕等历史事件，也能前推 **4-5 天** 查看 GFS 的预报场。这种“历史回放 + 未来预报”的组合在免费工具中并不多见。

## Earth 的免费层与移动端策略

网站核心功能完全免费，无水印、无导出限制。官方 iOS 和 Android 应用 “Nullschool – explore weather” 可免费下载，订阅后可解锁收藏夹、截图分享与二维码生成。订阅收入也是项目持续维护的主要支撑。

## Earth 存在哪些短板

Earth 不向用户开放公共 API，原始数据无法直接导出，二次开发需自行 fork [GitHub 源码](https://github.com/cambecc/earth)。该平台的可视化依赖外部数据源接口，一旦上游 GFS 或 OSCAR 等服务中断，地图会暂时失真。这是其作为聚合客户端的固有局限。

在全球环境数据可视化工具日益增多的当下，Earth 凭借免费、开源、数据源多元三项特色，占据了一个难以替代的位置。

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