TerraFlow
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Achan landfill from space
Potential waste sites from Sentinel-2. Needs on-ground verification.
- Sites
- 16
- Area
- 7.98 ha
- Waste F1
- 0.79
Copernicus Sentinel-2 data (ESA). Model v1.
Satellite viewTheme 1
Wetland Conservation
Dal Lake today. Anchar, Wular, Hokersar and Manasbal next.
—of 100
- Dal Lake health
- No live data
- Turbidity
- —
Environmental Intelligence · Open Source
Conserve the wetlands.
Travel green. Give back.
Satellite data, community action and responsible tourism to protect Kashmir's lakes and the people beside them.
- 1Wetland ConservationDal Lake health, water quality and satellite monitoring, then Wular and Anchar.Live data today
- 2Eco-Tourism, Winter and SummerGreen Passport and eco-certified operators for every season in the valley.Operators and passport live
- 3Giving to SocietySurplus food for the poor and needy, and more, shaped with stakeholders.In talks with stakeholders
Free forever · Open source · Open data
- SDG 6
- SDG 11
- SDG 12
- SDG 13
- SDG 15
- SDG 16
Water pollution70ML / dayUntreated sewage flows into Dal LakeWater safety1 of 24pointsMonitoring sites that meet safe standardsRunoff55%of pollutionDal Lake pollution from agricultural runoffWaste detection7.98haPotential waste found at Achan from Sentinel-2Water pollution70ML / dayUntreated sewage flows into Dal LakeWater safety1 of 24pointsMonitoring sites that meet safe standardsRunoff55%of pollutionDal Lake pollution from agricultural runoffWaste detection7.98haPotential waste found at Achan from Sentinel-2
Our focus
Three themes,
in order.
Everything else on TerraFlow serves these. Reporting, verification and open data are how we do the work.
Theme 1
Wetland Conservation
Kashmir's lakes are its most visible loss. We start with Dal Lake and add Anchar, Wular, Hokersar and Manasbal one at a time.
- Dal Lake Health IndexA weekly 0 to 100 score from six sub-indices, including turbidity, chlorophyll and dissolved oxygen.
- Waste-site detection from spaceSentinel-2 imagery and a trained classifier flag potential dumps. The pilot is the Achan landfill.
- Water quality and sewage plantspH, oxygen and fecal coliform readings, plus treatment-plant capacity against what they actually process.
Wetlands in focus
Only Dal Lake has live data today. The rest are next.
- Dal LakeHealth index and water qualityLive
- Anchar LakeLandfill and shoreline monitoringNext
- Wular LakeWater quality and birdsNext
- HokersarMigratory bird wetlandNext
- ManasbalWater qualityNext
Theme 2
Eco-Tourism, Winter and Summer
Visitors carry waste out, refill instead of buying bottles, and stay with operators who treat their sewage. Green Passport turns that into rewards you can spend in the valley.
Winter
- Gulmarg Gondola priority as a Green Passport reward
- Eco-certified stays and operators for the cold months
Winter-specific content is being planned. The passport and operator directory are live.
Summer
- Shikara rides on Dal Lake as a Green Passport reward
- Mughal Gardens entry for reporting an illegal dump
Summer-specific content is being planned. The passport and operator directory are live.
- of waste carried back
- 500 pts per kg
- per bottle refill
- 50 pts
- per eco-lodge stay
- 1,000 pts
- per pollution report
- 200 pts
Theme 3
Giving to Society
Good food should reach people who need it. Our Food Surplus Network is the first step, and it is not the last.
We are in talks with stakeholders and running surveys to decide what giving looks like next. Tell us what matters most.
- 1List surplusWeddings, restaurants and bakeries post food that would be wasted.
- 2Claim itNGOs, community kitchens and neighbours claim it for free.
- 3Collect in timeListings expire, so food reaches people while it is safe.
How it works
View full guide →From a signal
to real change.
A satellite flags a site or a neighbour spots it. Either way the record is hashed, geo-tagged, and only closes when someone nearby confirms the fix on the ground.
01
Spot it from space or street
Sentinel-2 detections and citizen photos start the same record. Photos carry GPS, a timestamp and a SHA-256 evidence hash, and AI suggests a category before you submit.
Water pollution94%
Waste4%
Other2%
GPS34.0837°N, 74.8370°E
SHA-256 evidence hasha47f91c8e3d60b2f984c…
02
Neighbours verify
Anyone within 500m gets a ping. Three independent verifications promote the report to "Community Verified" — authorities can't ignore it from here.
500m radius
3 / 3 verified
Nearby verifiers
03
Close it on-site
Authorities respond and update status. A complaint only marks "resolved" when a citizen at the location confirms the fix. Fake resolutions get flagged.
✓Report submittedTue 09:14
✓Community verified · 3×Tue 11:42
✓Escalated · Ward 14 officerWed 08:00
◦Awaiting citizen confirmationnow
·Resolved on-sitepending
✕Fake resolution flaggedblocked
Live intelligence
Wetlands,
measured.
Satellite detections and water-health scores, free to download.
Achan Landfill · Sentinel-2 / Sentinel-1
Waste detections
- Detections
- 46
- Potential area
- 25.24 ha
- Waste F1 (v2)
- 0.81
#Largest polygonsConfidence
0152,500 m²0.81
0216,700 m²0.66
031,200 m²0.44
041,100 m²0.33
051,000 m²0.54
Model v2, threshold 0.20–0.25. Satellite-derived detections for monitoring and decision support; not ground-truth confirmation.
Multi-site Earth ObservationOpen Satellite Observatory →
Dal Lake · weekly
Health index
—
of 100
Weekly composite of six satellite and lab sub-indices. Scores update when new data lands.
Dal Lake · six sub-indices
Water health
Turbidityno live data
Chlorophyll-ano live data
Dissolved oxygenno live data
Surface temperatureno live data
Fecal coliformno live data
Weed coverno live data
Field work · wetland edge
No signal · offline mode
2 items pending sync
Field data is saved on the device first and uploads when the network returns.
Offline-first
Built for the field.
Signal or no signal.
Photos, GPS and evidence hashes live on the device. When the network returns, everything syncs in the background, so nothing is lost on the lake shore or the trail.
Field capture
IndexedDB + background sync
Map browsing
Previously viewed tiles cached
Mesh relay
Peer-to-peer via QR codes
Syncing · 2 items queued
Background upload when signal returns
Multi-region
Kashmir first.
Then every city.
Data is strictly scoped per region. Nineteen database tables carry a region tag, so one city's data never leaks into another's dashboard.
Kashmir
Srinagar
- All three themes: wetlands, eco-tourism and giving
- Dal Lake health, water quality and satellite waste detection
- 35 wards with civic reporting and verification
Delhi
10 wards
- Civic reporting, air quality and compliance dashboards
- Landfill detection planned next, starting with Ghazipur and Bhalswa
Open Data · CC-BY
Every reading, every detection. Free to download.
Journalists, researchers, NGOs and PIL lawyers can pull raw wetland, water and satellite data directly. No paywall, no gatekeeping, no registration.
JSONCSVGeoJSONGeoTIFF
165+
API endpoints
CC-BY
open data licence
100%
free forever
Used by
Journalists
PIL Lawyers
Researchers
NGOs
CSR Teams
Governments
Activists
Educators
Data Scientists
Every report carries a SHA-256 evidence hash — the same data downloaded today is the data filed in court tomorrow.
GET/api/v1/dal-lake200 OK
GET/api/v1/reports200 OK
GET/api/v1/air-quality200 OK
api.terraflow.in/v1/achan
{"site": "achan-landfill","model": "random_forest_v1","detections": 16,"area_ha": 7.98,"note": "potential waste sites, requires verification","largest": [{ "id": "a9de9727", "area_m2": 52500, "probability": 0.806 }]}
Free forever · Open source · Community-powered
5Wetlands in focus
16Sites detected at Achan
7.98 haPotential waste area
3Regions
The valley breathes.
So does the evidence.
Satellite data, community action and open records,
working together for Kashmir's wetlands.
SDG 6SDG 11SDG 12SDG 13SDG 15SDG 16