Flight path locations in Keyhole Markup Language (KML) format corresponding to radar echograms, Greenland, 2009.

To better understand processes affecting the ice sheets and to supply boundary condition information into ice sheet models and ice thickness for other ice sheet analysis, the Center for Remote Sensing of Ice Sheets (CReSIS) has designed, developed, and deployed several multichannel radar depth sounders in Greenland. This dataset contains data collected mostly around outlet glaciers in Greenland, including dense grids around Jakobshavn, Helheim, and Kangerlussuaq glacier channels, with the specific purpose of improving understanding in this dynamic and fast changing part of the ice sheet. These KML files show the location of each data frame and data segment for the radar echograms in the dataset. Files are named according to the formats: Browse_Data_{$segment_id}.kml and Browse_{$season_id}.kml. Only a few data points are included to allow for quick download and browsing. There is one KML file per segment and then one KML with all segments (entire season). The per segment files contain information per frame and more data points. The season file contains information for each segment and fewer data points. More information can be found in “Readme.pdf”.为更好地理解影响冰盖的各类过程，并为冰盖模型提供边界条件信息、为其他冰盖分析提供冰厚数据，冰盖遥感中心（Center for Remote Sensing of Ice Sheets，CReSIS）已在格陵兰岛设计、开发并部署了多套多通道雷达测深仪。本数据集收录的数据大多采集自格陵兰岛的出口冰川区域，涵盖雅各布港冰川（Jakobshavn）、黑尔海姆冰川（Helheim）以及康格鲁苏阿克冰川（Kangerlussuaq）水道周边的密集测线网格，其核心目的是深化对冰盖这片动态且快速变化区域的认知。这些KML文件展示了本数据集内雷达回波图的各数据帧与数据段的位置。文件命名遵循如下格式："Browse_Data_{$segment_id}.kml"与"Browse_{$season_id}.kml"。为便于快速下载与浏览，本数据集仅收录了少量数据点。每个数据段对应一个专属KML文件，另有一份汇总所有数据段（全季）的总KML文件。单数据段文件包含各数据帧的详细信息与更多数据点，而季总文件仅包含各数据段的概况信息，数据点数量更少。更多详细信息可参阅"Readme.pdf"。