This dataset is the first-of-its-kind spatial representation of multi-seasonal, global SAR repeat-pass interferometric coherence and backscatter signatures. Global coverage comprises all land masses and ice sheets from 82 degrees northern to 78 degrees southern latitude. The dataset is derived from high-resolution multi-temporal repeat-pass interferometric processing of about 205,000 Sentinel-1 Single-Look-Complex (SLC) data acquired in Interferometric Wide-Swath mode (Sentinel-1 IW mode) from 1-Dec-2019 to 30-Nov-2020.

The dataset was developed by Earth Big Data LLC and Gamma Remote Sensing AG, under contract for NASA’s Jet Propulsion Laboratory.

The dataset covers seasonal (DJF/MAM/JJA/SON) metrics of:

• Median 6-, 12-, 18-, 24-, 36-, and 48-day repeat coherence estimates for C-band VV and HH polarized data
• Mean backscatter (γº) for VV, VH, HH, and HV polarizations
• Seasonal coherence decay model parameters rho, tau, and rmse
• Local incidence and layover/shadow regions for all relative Sentinel-1A and Sentinel-1B orbits. Note that in the dataset filenames seasons were referred to as northern hemisphere winter (DJF), spring (MAM), summer (JJA), and fall (SON).