Ground-based radar interferometer imagery from the SIDEx Field Campaign, Beaufort Sea, 2021

### Access

Files be accessed and downloaded from the directory via: [http://arcticdata.io/data/10.18739/A29K45V70](http://arcticdata.io/data/10.18739/A29K45V70).

### Overview

The Sea Ice Dynamics Experiment was a field campaign in the Beaufort Sea during February to April 2021. The field experiment was designed to investigate the interaction of ice stress, strain, and fracture over meter-to-kilometer spatial scales as ice fractured and subsequently deformed. Observations were collected in situ at an ice camp, using autonomous buoys, and with remote sensing. Observations were collected over a variety of scales, including scales larger than the target meter (m)-kilometer (km) scale. This dataset is one facet of the multi-modal data package collected together in this parent archive.

This dataset contains radar images acquired at the SIDEx camp by a Gamma Portable Radar Interferometer (GPRI) between 2021-03-04 22:31 and 2021-03-20 03:42 UTC and derivative products. These radar images were collected for the purpose of monitoring surface displacement in the ice surrounding the SIDEx camp. The GPRI is a ground-based, real-aperture, Ku-band (~1.76 centimeter [cm] wavelength), interferometric radar with three antennas (one transmit and two receive). The instrument has two image collection modes, scan and stare, both of which were employed during the SIDEx camp. In scan mode, the GPRI rotates as it transmits and receives radar energy, producing a near-360 degree image of its surroundings in range-azimuth space with a nominal range resolution of 0.75 m and azimuth resolution of 0.100008 degrees. Interferograms calculated from sequential scans acquired at the same receive antenna allow analysis of spatial patterns in surface displacement. In stare mode, the GPRI remains pointed in a fixed direction, creating an image in range-time space with a range-resolution of 0.75 m and temporal resolution of 0.02 second (s). Interfering each line in the image with the initial line allows analysis of transient variations in surface motion along a single direction.