The terrain, rock, soil and rainfall of any plot, in one read
Drop a pin anywhere in Tamil Nadu and get nine state GIS layers at once: elevation, slope, the way the ground faces, the landform, the rock beneath, existing and proposed land use, soil, the watershed and the annual rainfall. Each figure is advisory, not survey grade.
Sign in with your phone to run it. You see the price and approve it before anything runs.
- Nine layers in one read: the slope in degrees with what it means, the rock beneath, the soil, the existing and proposed land use, the rainfall zone
- Each figure carries the layer it came from; none of it is survey grade and the card says so
- Pairs with the zone check for what is recorded and the water story for what is nearby
1 creditper run, charged only when a record comes back
What we need
One thing at a time. Fill it in and press Run.
The answer
From the register, with its date and source.
Nothing run yet. The answer appears here with everything this mini adds:
- Nine layers in one read: the slope in degrees with what it means, the rock beneath, the soil, the existing and proposed land use, the rainfall zone
- Each figure carries the layer it came from; none of it is survey grade and the card says so
- Pairs with the zone check for what is recorded and the water story for what is nearby
The profile, briefly
Geomorphology is the landform a place sits on, such as a flood plain, a pediment or a coastal plain, which says how the ground was made and how water moves over it.
- Layers
- 9
Elevation, slope, aspect, geomorphology, geology, land use, soil, watershed and rainfall, all at the same pin.
- Time
- Up to a minute
The nine layers are read one after another from the state GIS service.
- Heights checked
- Two sources
The state elevation layer is checked against a separate terrain model, and when the two disagree badly the answer says so.
How to read the terrain of a plot
- 1
Place the pin
Tap the plot on the map, paste a Google Maps link to it, or use your location while you stand there.
- 2
Press Run and wait
The profile takes up to a minute while the nine layers are read.
- 3
Read it together
Low slope on a flood plain with heavy rainfall reads differently from the same slope on rock. Take the layers as one picture.
Terrain profile, elevation, soil type and zone check
Four minis read the ground at a pin. Each answers a different question.
| Terrain profile | Elevation | Soil type | Zone check | |
|---|---|---|---|---|
| Answers | What the ground is like | How high it is and which way it falls | What soil is under it and what it carries | Which restrictions apply |
| Reads | Nine state GIS layers | A 90 m terrain model | The metropolitan master plan soil sheet | Up to 40 regulatory layers |
| Covers | Tamil Nadu | Any pin | The Chennai metropolitan area | Each layer its own area, said when it does not cover |
| Gives a verdict | No, an advisory profile | No, figures | No, a class with its properties | Yes, one per layer |
When it helps with land
Farm land
Soil, rainfall and slope together say what the land can grow and how water will sit on it.
Building on it
The rock beneath and the slope hint at how deep the foundation goes and where the water drains.
Future use
The proposed land use beside the existing one shows what the planning map expects of the area.
Every layer here is an estimate from state GIS maps, not a survey or a soil test. For restrictions run the zone check, for foundations get a site soil investigation, and for ownership check the revenue records.
Questions people ask
What does the terrain profile tell me about my land?
Nine readings at the pin: the height above sea level, the slope and which way it faces, the landform, the rock beneath, the existing and proposed land use, the soil, the watershed it drains to and the annual rainfall.
Is this a soil test?
No. It reads the state GIS layers, which are estimated and advisory. A soil test on site is still the only proof for a foundation.
Why does it take a minute?
Nine map layers are read one after another from the state GIS service. The answer is saved, so you can open it again from your runs.
Will it tell me if the land is in a flood or aquifer zone?
No. This is a profile, not a verdict. Use the zone check for flood, aquifer and water body zones, and the waterways mini for the nearest river or canal.
Why does the height differ from the elevation mini?
The profile reads the state elevation layer, and the elevation mini reads a separate terrain model. When the two are far apart, the profile leads with the terrain model and says the state layer differs. Treat both as rough.
What does it cost?
The price is on the Run button. It is charged when the profile comes back, and nothing is charged if the service fails or no layer holds a reading.