The NISAR Beta Geocoded Unwrapped Interferogram (GUNW) product provides geocoded, unwrapped interferograms derived from repeat-pass NISAR L-band SAR data. Each product represents the interferometric phase difference between a reference (newer) and a secondary (older) acquisition, enabling measurement of centimetre-scale surface deformation due to earthquakes, volcanic activity, landslides, and subsidence.The primary data file is provided in HDF5 format and includes unwrapped phase, coherence, connected components, ionospheric corrections, and tropospheric correction layers at approximately 80-metre pixel spacing. A Cloud Optimized GeoTIFF (COG) sidecar is provided for the coherence magnitude layer to facilitate web-based visualization.This is a beta product. The NISAR mission is a joint project of NASA and the Indian Space Research Organisation (ISRO).