| 摘要: |
| 为更有效地利用Landsat-8 和GF-1 卫星进行渤海海冰监测, 从海冰检测和海冰类型识别两方面,开展Landsat-8 与GF-1 卫星的渤海海冰探测能力对比分析研究。实验研究表明, 在海冰检测方面, GF-1区分海冰与海水的能力强于Landsat-8; 在海冰类型识别方面, Landsat-8 识别海冰类型的能力要强于GF-1 影像。初步讨论了综合利用Landsat-8 与GF-1 卫星监测渤海海冰的方案。 |
| 关键词: 光谱信息 海冰识别 海冰分类 Landsat-8 高分一号 渤海 |
| DOI：10.11759/hykx20141011018 |
| 分类号: |
| 基金项目:国家自然科学基金项目(41306193); 海洋行业公益性项目(201105016) |
|
| Comparison of sea ice detection ability of Landsat-8 and GF-1 in the Bohai Sea |
|
|
| Abstract: |
| Gaofen-1 (GF-1) and Landsat-8, lunched in 2013, are high-performance satellites with high resolution and multi-spectral bands. Both of them arouse wide concerns. For improving the effectiveness of using GF-1 and Landsat-1 to monitor sea ice in the Bohai Sea, the ability of Landsat-8 and GF-1 for sea ice detection was evaluated in two aspects. One is the sea ice detection and the other is sea ice classification. For sea ice imaging quality, the dynamic range of DN and entropy of Landsat-8 is better than that of the GF-1 images. The experiment shows that, in identifying sea ice from open water, GF-1 images outperform Landsat-8 images. However, in classifying sea ice types, Landsat-8 images are better than GF-1 images. finally, this paper preliminarily discusses the scheme of sea ice monitoring using Landsat-8 and GF-1 satellite images synthetically. |
| Key words: sea ice in the Bohai Sea Landsat-8 Gaofen-1 optical remote sensing |
