Images from focused synthetic aperture radar processing of echogram data with delay and sum antenna array processing, Greenland, 2009

• Main Authors: Paden, John, Li, Jilu
• Format: Dataset
• Language: English
• Published: NSF Arctic Data Center 2017
• Subjects: Radar depth sounder; Echogram; Ice thickness; Greenland; Kangerlussuaq; Center for Remote Sensing of Ice Sheets (CReSIS); glacier; Ice Sheet; Jakobshavn
• Online Access: https://dx.doi.org/10.18739/a2v40k05r; https://arcticdata.io/catalog/view/doi:10.18739/A2V40K05R

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. This product uses focused synthetic aperture array (SAR) processing to improve resolution in along-track. The array processing technique used to combine the multiple channels is based on the periodogram method also known as delay and sum beamforming. This product is a pdf file for convenient browsing of the imagery. Files are named according to the format: /{$segment_id}.pdf. The segment ID is YYYYMMDD_SS where YYYY is the 4-digit year (e.g. 2011), MM is the 2-digit month from 1 to 12, DD is the 2-digit day of the month from 1 to 31, and SS is the segment number from 0 to 99. For example, “20080627_05.pdf” contains data from segment 05 taken on 2008-06-27. More information can be found in “Readme.pdf”.