Loading measured data...
OffBeat Tour - Step 1
...
Off-Beat map - ...
NISAR archive
Find ASF acquisitions and source files for the point at the centre of the map.
Pixel card - click the map
| WorldCover class | - |
|---|---|
| Peers | - |
| z-score | - |
| Style | - |
| Since | - |
| Location | - |
| GUNW quality | - |
Largest off-beat patches
| # | Style | Area | Peak |z| | Since |
|---|
Check against deforestation alerts
How OffBeat finds a pixel out of step
These cases show measured NISAR HH/HV at sparse sample locations. Each GUNW result uses one actual acquisition pair; rejected samples remain unavailable. Backscatter peers are sampled locations of the same historical WorldCover 2021 class within 1 km; the band is median ± 2 × 1.4826 MAD, with at least 10 valid peers.
GUNW is referenced to one coherent location in the same connected component. Ionospheric phase is removed; troposphere and tides remain. The reference is not proven stable. This apparent LOS change is not a subsidence rate or vertical displacement. The first epoch is zero by definition.
No anomaly classifier or patch areas are published from this short case. Both maps use the same Esri imagery, grey under NISAR on the left and colour on the right. Imagery dates vary by location; this is geographic context, not a date-matched check. Map labels can be switched off. Missing and rejected measurements remain unavailable.
Data: NASA-ISRO NISAR via ASF DAAC, ESA WorldCover 10 m, imagery (c) Esri, Vantor, Earthstar Geographics; labels (c) Esri, HERE, Garmin, OpenStreetMap contributors. Font W95FA by Alina Sava, OFL. Built for NASA Space Apps 2026, “Dancing with the SARs”. Open source.