PAZ ESA archive
收藏fedeo.ceos.org2022-09-14 更新2025-03-24 收录
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The PAZ ESA archive collection consists of PAZ Level 1 data previously requested by ESA supported projects over their areas of interest around the world and, as a consequence, the products are scattered and dispersed worldwide and in different time windows. The dataset regularly grows as ESA collects new products over the years. Available modes are: • StripMap mode (SM): SSD less than 3m for a scene 30km x 50km in single polarization or 15km x 50km in dual polarisation • ScanSAR mode (SC): the scene is 100 x 150 km2, SSD less than 18m in signle pol only • Wide ScanSAR mode (WS): single polarisation only, with SS less than 40m and scene size of 270 x 200 km2 • Spotlight modes (SL): SSD less than 2m for a scene 10km x 10km, both single and dual polarization are available • High Resolution Spotlight mode (HS): in both single and dual polarisation, the scene is 10x5 km2, SSD less than 1m • Staring Spotlight mode (ST): SSD is 25cm, the scene size is 4 x 4 km2, in single polarisation only. The available geometric projections are: • Single Look Slant Range Complex (SSC): single look product, no geocoding, no radiometric artifact included, the pixel spacing is equidistant in azimuth and in ground range • Multi Look Ground Range Detected (MGD): detected multi look product, simple polynomial slant-to-ground projection is performed in range, no image rotation to a map coordinate system is performed • Geocoded Ellipsoid Corrected (GEC): multi look detected product, projected and re-sampled to the WGS84 reference ellipsoid with no terrain corrections • Enhanced Ellipsoid Corrected (EEC): multi look detected product, projected and re-sampled to the WGS84 reference ellipsoid, the image distortions caused by varying terrain height are corrected using a DEM The following table summarises the offered product types EO-SIP product type Operation Mode Geometric Projection PSP_SM_SSC Stripmap (SM) Single Look Slant Range Complex (SSC) PSP_SM_MGD Stripmap (SM) Multi Look Ground Range Detected (MGD) PSP_SM_GEC Stripmap (SM) Geocoded Ellipsoid Corrected (GEC) PSP_SM_EEC Stripmap (SM) Enhanced Ellipsoid Corrected (EEC) PSP_SC_MGD ScanSAR (SC) Single Look Slant Range Complex (SSC) PSP_SC_GEC ScanSAR (SC) Multi Look Ground Range Detected (MGD) PSP_SC_EEC ScanSAR (SC) Geocoded Ellipsoid Corrected (GEC) PSP_SC_SSC ScanSAR (SC) Enhanced Ellipsoid Corrected (EEC) PSP_SL_SSC Spotlight (SL) Single Look Slant Range Complex (SSC) PSP_SL_MGD Spotlight (SL) Multi Look Ground Range Detected (MGD) PSP_SL_GEC Spotlight (SL) Geocoded Ellipsoid Corrected (GEC) PSP_SL_EEC Spotlight (SL) Enhanced Ellipsoid Corrected (EEC) PSP_HS_SSC High Resolution Spotlight (HS) Single Look Slant Range Complex (SSC) PSP_HS_MGD High Resolution Spotlight (HS) Multi Look Ground Range Detected (MGD) PSP_HS_GEC High Resolution Spotlight (HS) Geocoded Ellipsoid Corrected (GEC) PSP_HS_EEC High Resolution Spotlight (HS) Enhanced Ellipsoid Corrected (EEC) PSP_ST_SSC Staring Spotlight (ST) Single Look Slant Range Complex (SSC) PSP_ST_MGD Staring Spotlight (ST) Multi Look Ground Range Detected (MGD) PSP_ST_GEC Staring Spotlight (ST) Geocoded Ellipsoid Corrected (GEC) PSP_ST_EEC Staring Spotlight (ST) Enhanced Ellipsoid Corrected (EEC) PSP_WS_SSC Wide ScanSAR (WS) Single Look Slant Range Complex (SSC) PSP_WS_MGD Wide ScanSAR (WS) Multi Look Ground Range Detected (MGD) PSP_WS_GEC Wide ScanSAR (WS) Geocoded Ellipsoid Corrected (GEC) PSP_WS_EEC Wide ScanSAR (WS) Enhanced Ellipsoid Corrected (EEC)
PAZ ESA档案集合包含ESA支持的全球范围内项目所请求的PAZ级1数据。由于这些数据是根据各项目兴趣区域进行收集的,因此产品在全球范围内分散并分布于不同的时间窗口内。随着ESA逐年收集新的产品,该数据集持续增长。可用的模式包括:
• 条带模式(SM):对于30km x 50km的单极化场景或15km x 50km的双极化场景,SSD小于3米
• 扫描SAR模式(SC):场景为100 x 150 km²,单极化下SSD小于18米
• 宽扫描SAR模式(WS):仅单极化,SS小于40米,场景大小为270 x 200 km²
• 点亮模式(SL):对于10km x 10km的场景,SSD小于2米,提供单极化和双极化
• 高分辨率点亮模式(HS):单极化和双极化均适用,场景大小为10x5 km²,SSD小于1米
• 准视点亮模式(ST):SS为25厘米,场景大小为4 x 4 km²,仅单极化
可用的几何投影包括:
• 单视斜距复数(SSC):单视产品,无地理编码,不包含辐射学伪影,像素间距在方位角和地面距离上均等距
• 多视地面距离检测(MGD):检测多视产品,在距离方向上执行简单的斜距到地面多项式投影,不进行图像旋转到地图坐标系统
• 地理编码椭球校正(GEC):多视检测产品,投影并重采样到WGS84参考椭球,无地形校正
• 增强椭球校正(EEC):多视检测产品,投影并重采样到WGS84参考椭球,使用DEM纠正由地形高度变化引起的图像畸变
以下表格总结了所提供的产品类型:
EO-SIP产品类型 操作模式 几何投影
PSP_SM_SSC 条带(SM) 单视斜距复数(SSC)
PSP_SM_MGD 条带(SM) 多视地面距离检测(MGD)
PSP_SM_GEC 条带(SM) 地理编码椭球校正(GEC)
PSP_SM_EEC 条带(SM) 增强椭球校正(EEC)
PSP_SC_MGD 扫描SAR(SC) 单视斜距复数(SSC)
PSP_SC_GEC 扫描SAR(SC) 多视地面距离检测(MGD)
PSP_SC_EEC 扫描SAR(SC) 地理编码椭球校正(GEC)
PSP_SC_SSC 扫描SAR(SC) 增强椭球校正(EEC)
PSP_SL_SSC 点亮(SL) 单视斜距复数(SSC)
PSP_SL_MGD 点亮(SL) 多视地面距离检测(MGD)
PSP_SL_GEC 点亮(SL) 地理编码椭球校正(GEC)
PSP_SL_EEC 点亮(SL) 增强椭球校正(EEC)
PSP_HS_SSC 高分辨率点亮(HS) 单视斜距复数(SSC)
PSP_HS_MGD 高分辨率点亮(HS) 多视地面距离检测(MGD)
PSP_HS_GEC 高分辨率点亮(HS) 地理编码椭球校正(GEC)
PSP_HS_EEC 高分辨率点亮(HS) 增强椭球校正(EEC)
PSP_ST_SSC 准视点亮(ST) 单视斜距复数(SSC)
PSP_ST_MGD 准视点亮(ST) 多视地面距离检测(MGD)
PSP_ST_GEC 准视点亮(ST) 地理编码椭球校正(GEC)
PSP_ST_EEC 准视点亮(ST) 增强椭球校正(EEC)
PSP_WS_SSC 宽扫描SAR(WS) 单视斜距复数(SSC)
PSP_WS_MGD 宽扫描SAR(WS) 多视地面距离检测(MGD)
PSP_WS_GEC 宽扫描SAR(WS) 地理编码椭球校正(GEC)
PSP_WS_EEC 宽扫描SAR(WS) 增强椭球校正(EEC)
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