2D multichannel seismic reflection data of RV POLARSTERN cruise PS74, East Greenland Margin, profile AWI-20090312

The data set provides raw and processed seismic reflection data collected during Expedition PS74 (ARK-XXIV/3) onboard RV Polarstern along the East Greenland Margin in 2009. Detailed data acquisition parameters for the profiles are documented in the expedition report (Jokat, 2010). Metadata, recording parameters, and the seismic data processing sequence are documented in the EBCDIC-Headers enclosed in the seg-y files. Navigation information is included in the seg-y headers, in the Shot-list files and Navigation files (see raw data). A ReadMe file additionally lists the metadata and recording parameters for the seismic profiles. The data set is grouped into three categories: 1. Raw data comprise (a) demultiplexed seismic data in seg-y format, (b) a shot list of date, time and shot-number, and (c) navigation data with date, time, and coordinates. 2. Primary data consist of CDP-sorted data in seg-y format. 3. The data product is provided as stacked version of the seismic profile in seg-y format.

本数据集提供了2009年搭载“极星号”（RV Polarstern）科考船执行PS74（ARK-XXIV/3）科考航次期间，沿东格陵兰陆缘采集的原始与处理后地震反射数据。各测线的详细数据采集参数已在该航次报告（Jokat, 2010）中予以记录。SEG-Y格式文件内附带的EBCDIC-Headers包含了元数据、记录参数以及地震数据处理流程文档。导航信息收录于SEG-Y文件头、炮点列表文件与导航文件中（详见原始数据部分）。另有ReadMe文件额外列出了各地震测线的元数据与记录参数。本数据集分为三大类别：
1. 原始数据包含：(a) 解多路复用后的SEG-Y格式地震数据；(b) 记录有日期、时间与炮号的炮点列表；以及(c) 包含日期、时间与坐标信息的导航数据。
2. 初级数据为经共深度点（Common Depth Point, CDP）分选后的SEG-Y格式数据。
3. 数据产品为以SEG-Y格式存储的地震测线叠加剖面。