THE STUDY WINDOW
60 m analysis cellsAmaravati, in focus
Preparing the observation map…
VegetationExposedWaterBuilt
16.53° N 80.515° E INDIA
Land, seen a little closer.
A small window into Amaravati’s changing landscape.
Real NASA HLS inputs. Model trained against ESA WorldCover 2021 reference labels. Loading evidence…
AREA COMPARISON
km² · valid classificationsWhat the observations show
FIELD REVIEW
16Sectors to investigate
COMPARE OBSERVATIONS
Change is an observation, before it is an explanation.
Compare similar-season snapshots. Crop calendars, construction and weather can all change land cover.
Land-cover transitions
Only cells valid on both dates and above the model-score threshold.
Vegetated-reference anomalies
An Isolation Forest compares current optical indices with the 2021 vegetated reference. This is spectral novelty, not a diagnosis of crop stress.
Planting dates and verified farm records are required before interpreting this as a crop-season alert.
Sector-level comparison
Held-out confusion matrix
Rows: reference label. Columns: model prediction.
Which inputs matter?
Impurity-based feature importance. Correlated features share influence.
A traceable training pipeline
↓ Training report01Observe
NASA HLS S30 surface reflectance, with Fmask screening.
02Reference
ESA WorldCover 2021 modal labels on the same 60 m grid.
03Separate
Spatial blocks for fitting, validation and held-out testing.
04Evaluate
Compare bounded-depth models, then report untouched test blocks.
Validation trials
Model-score threshold
Hide lower-scoring classifications across the dashboard. The score is tree-vote support and is not a calibrated probability.
Observation manifest
Original catalogue identifiers remain attached to each snapshot.
What this prototype can establish
The water measurements
| Measurement | Available here? | Interpretation |
|---|---|---|
| Surface-water extent | Yes · optical classification | Mapped water area at an observation date |
| Water depth / reservoir level | No measurements supplied | Needs a gauge or a suitable SWOT observation |
| Local soil moisture | No sensor record supplied | NDMI is a vegetation moisture index, not measured soil moisture |
| Groundwater / soil chemistry | No field records supplied | Requires local measurements and expert assessment |
HUMAN OBSERVATIONS
The other half of the evidence.
Keep inspection findings alongside satellite observations. Entries stay in this browser unless exported.