HY-1D卫星CZI获取的杭州湾影像

封面图片为海洋一号D卫星（HY-1D）海岸带成像仪（CZI）获取的杭州湾及邻近区域假彩色影像。该影像清晰呈现了沿杭州湾区域的城镇、植被、滨海湿地、海湾、河口和水体等核心地理要素的空间分布。HY-1D与HY-1C采用上、下午组网模式，可增加观测次数，提高全球覆盖能力。CZI拥有50m空间分辨率、950km幅宽和4个光谱波段，主要用于监测海岸带区域，了解海湾河口的水色要素特性等，为资源调查、环境监测、防灾减灾等提供重要数据支撑。该数据可从国家卫星海洋应用中心网站免费获取：http://www.nsoas.org.cn。

The image of the Hangzhou Bay acquired by CZI aboard HY-1D

The cover image shows a pseudo-color depiction of the Hangzhou Bay, acquired by the Coastal Zone Imager (CZI), aboard the HY-1D satellite. The image clearly illustrates the spatial distribution of core geographical elements, such as urban, vegetation, wetlands, bay, estuary and water bodies. The HY-1D and HY-1C satellites operate in a coordinated morning-afternoon network configuration, which enhances observation frequency and improves global coverage capability. The CZI features a spatial resolution of 50 meters, a swath width of 950 kilometers, and four spectral bands. It is primarily used for monitoring coastal zones and studying water color parameters in bays and estuaries, providing critical data support for resource surveys, environmental monitoring, disaster prevention and mitigation, among other applications.The data can be obtained free of charge from the website of NSOAS: http://www.nsoas.org.cn.