SatQuery AI report

Query: What changed, and where?
Task: change · Input config: bitemporal · Confidence: 0.582

Answer

Based on the provided measurements and visual evidence, here’s what changed between Image 1 (earlier) and Image 2 (later): What Changed: - Water/Flooding Increased: The most significant change is a large area of new or increased water coverage, likely due to flooding. This is confirmed by: - A negative NDVI delta (-0.981), indicating loss of vegetation cover (likely submerged crops). - A positive NDWI delta (+0.838), which typically indicates increased water content in the canopy. - The tool explicitly flags this as "likely new water / flooding." Where: - The change occurred primarily along the river channel and its immediate floodplain, extending into adjacent agricultural fields. - In Image 1, the river appears as a dark blue line with some green/brown patches on either side (vegetated banks). - In Image 2, this same area is

Evidence

Inputs

[
 {
  "name": "river_t1.tif",
  "modality": "optical",
  "bands": 4,
  "size": [
   1024,
   1024
  ],
  "crs": null
 },
 {
  "name": "river_t2.tif",
  "modality": "optical",
  "bands": 4,
  "size": [
   1024,
   1024
  ],
  "crs": null
 }
]

Execution trace

#toolstatusmsparamsstatsconfoutput
1change_cvaok88{"threshold": null, "noise_k": 2.0}{"changed_pct": 9.16, "threshold": 1.666, "ndvi_delta_in_changed": -0.981, "ndwi_delta_in_changed": 0.838, "likely": "new water / flooding"}None
2vlm_changeok11067{"max_tokens": 200}null0.582Based on the provided measurements and visual evidence, here’s what changed between Image 1 (earlier) and Image 2 (later): What Changed: - Water/Flooding Increased: The most significant change is a large area of new or increased water coverage, likely due to flooding. This is confirmed by: - A negative NDVI delta (-0.981), indicating loss of vegetation cover (likely submerged crops). - A positive NDWI delta (+0.838), which typically indicates increased water content in the canopy. - The tool explicitly flags this as "likely new water / flooding." Where: - The change occurred primarily along the river channel and its immediate floodplain, extending into adjacent agricultural fields. - In Image 1, the river appears as a dark blue line with some green/brown patches on either side (vegetated banks). - In Image 2, this same area is

Visual evidence

input 1: river_t1.tif (optical)
input 2: river_t2.tif (optical)
evidence: change_cva on input 1
evidence: change_cva on input 2