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免费下载卫星影像的软件与平台推荐

  • 2026-01-13 05:42:05
免费下载卫星影像的软件与平台推荐

免费下载卫星影像的软件与平台推荐,涵盖从全球数据到专业分析的不同需求。它们大多能直接获取原始数据,而非仅限在线浏览。

一、核心下载平台(直接获取原始数据)

这类平台是卫星数据的官方或聚合来源,通常提供API或批量下载。

  1. USGS EarthExplorer

    • 卫星数据Landsat系列(历史存档最全,包括最新的Landsat 9)、MODIS、ASTER等。

    • 特点:美国地质调查局官方平台,数据权威、免费、稳定。需注册账号,支持按时间、云量、区域筛选。

    • 最佳用途:获取用于长时间序列分析、地表变化监测的Landsat数据

  2. ESA Copernicus Open Access Hub / Sentinel Hub

    • 卫星数据Sentinel系列(哨兵1号雷达影像、哨兵2号高光谱光学影像、哨兵3号海洋与陆地数据等)。

    • 特点:欧洲航天局官方数据门户。哨兵2号提供10米分辨率影像,重访周期短(5天),非常适合动态监测。

    • 最佳用途:获取欧洲地区或全球最新、更新频率高的中高分辨率光学与雷达影像。

二、国产数据获取平台

  1. 地理空间数据云

    • 卫星数据:提供Landsat系列、MODIS,以及部分国产卫星数据(如高分系列、环境减灾卫星等)。

    • 特点:国内访问速度较快,界面友好,对国产卫星支持较好。需注册。

    • 最佳用途:中国区域研究,获取国产卫星数据。

  2. 91卫图助手

    • 卫星数据:集成Google Earth、Bing、天地图、ArcGIS等多源在线地图,并可下载为离线瓦片。

    • 特点:非原始数据源,而是地图下载器。能下载拼接好的在线地图作为底图使用。部分高级功能需付费,基础下载免费。

    • 最佳用途:快速获取某个区域的高清在线地图作为规划或演示底图,而非用于专业光谱分析。

三、专业GIS软件(集成数据获取与处理)

这类软件本身不是数据源,但内置或通过插件连接上述平台,实现“查找-下载-处理”一体化。5. QGIS定位:开源免费的桌面GIS软件。下载功能:通过官方插件实现。Semi-Automatic Classification Plugin (SCP):强大的一键式工具,可直接在软件内搜索、预览和下载Landsat和Sentinel-2数据。QuickMapServices:加载各种在线地图服务作为参考底图。最佳用途:一站式完成从卫星数据搜索下载、预处理、分析到制图的全流程。适合有GIS或遥感基础的用户。

四、直观浏览与导出工具

  1. Google Earth Pro

    • 可以保存当前视图为高分辨率图像(文件 > 保存 > 保存图像),分辨率可达4800像素。

    • 可使用“历史图像”功能查看不同时间的存档影像。

    • 定位:强大的全球三维地球浏览器。

    • “下载”功能

    • 注意:导出的是图片,非原始多波段卫星数据,无法进行专业遥感分析(如NDVI计算)。

    • 最佳用途:项目展示、教育、初步规划和获取高质量参考图。

五、实时浏览与数据导出平台

  1. NASA Worldview

    • 特点:近乎实时(几小时内)的全球卫星影像浏览,每日更新。支持自定义波段组合,可导出特定区域和时间的GeoTIFF格式图像。

    • 卫星数据:主要针对MODIS、VIIRS等中低分辨率全球观测数据。

    • 最佳用途:监测全球尺度的动态事件,如台风、山火、沙尘暴,并导出相关数据。

选择指南与注意事项

需求场景
首选推荐
关键理由
学术研究、地表变化分析USGS EarthExplorer
 (Landsat)
历史数据最完整,科学分析基石
监测农作物、森林、最新事件ESA Copernicus Hub
 (Sentinel-2)
更新快,分辨率较高,光谱信息丰富
中国区域研究,使用国产数据地理空间数据云
数据针对性强,访问顺畅
只想下载一张高清区域地图做底图91卫图助手
 或 Google Earth Pro
操作简单,出图快
希望在一个软件内完成所有工作QGIS + SCP插件
集大成者,无缝衔接处理流程

重要提示

  • 分辨率:上述免费数据多为10-30米分辨率(Sentinel-2为10米,Landsat为30米)。亚米级(如0.5米)高清影像通常需要商业购买

  • 数据处理:从USGS、ESA等平台下载的原始数据(如.tar.gz)需要经过辐射定标、大气校正、镶嵌等预处理才能用于分析,这需要一定的遥感知识或借助QGIS、SCP插件等工具。

  • 版权与用途:大部分政府开放数据允许免费用于商业和研究,但需注明数据来源。

建议如果你是初学者,想快速获得一张清晰的卫星图,从 Google Earth Pro 保存图片是最简单的。如果你需要进行专业的分析或制作专题地图,建议学习使用 QGIS 并结合 USGS EarthExplorer 或 Sentinel Hub 获取数据,这是目前最强大且完全免费的工作流。

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  1. CONNECT:[ UseTime:0.000537s ] mysql:host=127.0.0.1;port=3306;dbname=no_yeyulingfeng;charset=utf8mb4
  2. SHOW FULL COLUMNS FROM `fenlei` [ RunTime:0.000811s ]
  3. SELECT * FROM `fenlei` WHERE `fid` = 0 [ RunTime:0.000319s ]
  4. SELECT * FROM `fenlei` WHERE `fid` = 63 [ RunTime:0.000638s ]
  5. SHOW FULL COLUMNS FROM `set` [ RunTime:0.000470s ]
  6. SELECT * FROM `set` [ RunTime:0.000149s ]
  7. SHOW FULL COLUMNS FROM `article` [ RunTime:0.000540s ]
  8. SELECT * FROM `article` WHERE `id` = 458743 LIMIT 1 [ RunTime:0.000977s ]
  9. UPDATE `article` SET `lasttime` = 1768392392 WHERE `id` = 458743 [ RunTime:0.019524s ]
  10. SELECT * FROM `fenlei` WHERE `id` = 66 LIMIT 1 [ RunTime:0.008783s ]
  11. SELECT * FROM `article` WHERE `id` < 458743 ORDER BY `id` DESC LIMIT 1 [ RunTime:0.000656s ]
  12. SELECT * FROM `article` WHERE `id` > 458743 ORDER BY `id` ASC LIMIT 1 [ RunTime:0.000622s ]
  13. SELECT * FROM `article` WHERE `id` < 458743 ORDER BY `id` DESC LIMIT 10 [ RunTime:0.011457s ]
  14. SELECT * FROM `article` WHERE `id` < 458743 ORDER BY `id` DESC LIMIT 10,10 [ RunTime:0.005834s ]
  15. SELECT * FROM `article` WHERE `id` < 458743 ORDER BY `id` DESC LIMIT 20,10 [ RunTime:0.003023s ]
0.134310s