全球0.05° 基于网格数据集的钥匙洞图像与时空指标 (1960-1984) 的数据集
Tao Wang1, Xinle Zhang2, Mulin Shan1
1School of Geography and Environment, Liaocheng University, Liaocheng, 252059, China.
Scientific data
|February 17, 2026
概括
一个新的数据集组织了解密的美国Keyhole图像 (1960-1984) 用于地球科学研究. 这种基于全球网络的数据简化了访问历史卫星图像,帮助研究设计和与现代数据的整合.
科学领域:
- 地质科学地质科学是指地球科学.
- 遥感 遥感 遥感 遥感
- 历史数据分析 历史数据分析
背景情况:
- 解密的美国钥匙洞图像为地质科学研究提供了有价值的高分辨率的早期时间数据.
- 钥匙洞图像的不均的空间和时间分布阻碍了研究人员高效的访问和选择.
- 缺乏标准化的元数据和分布信息,以有效利用这些历史卫星数据.
研究的目的:
- 引入一个基于全球网格的数据集,组织解密的美国钥匙洞图像 (1960-1984).
- 为了标准化场景元数据,并为改善研究设计和数据集成提供指标.
- 为了促进更容易访问,选择和利用历史卫星图像进行研究.
主要方法:
- 全球等面积正弦形网格系统的开发.
- 在网格上组织解密的美国钥匙洞图像 (1960-1984).
- 场景元数据的标准化,包括覆盖数,采集日期,观察界限,跨度,峰值年,分辨率类和时间覆盖类.
主要成果:
- 一个全面的全球数据集解密的美国Keyhole图像 (1960-1984) 现在可用.
- 提供标准化元数据和衍生指标 (例如,覆盖数,时间丰富度,分辨率类).
- 该数据集能够有效地定位可用的场景,评估时间适用性,并与现代卫星数据集成.
结论:
- 新的数据集显著提高了地质科学研究的历史关键洞图像的可用性.
- 研究人员现在可以更有效地选择,访问和将历史卫星数据整合到他们的研究中.
- 这个资源支持有关购买非自由图像的知情决策,当免费选项不足时.
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