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What we are
Independent · Non-profit · Applied research
Reksar Lab
Understanding Water.Anticipating Risk.
Applied Research for Connected Water Systems.
Reksar Lab is an independent, non-profit applied research group working on water and environmental risk in Indonesia.
We study how rivers and groundwater are linked. We write methods, plan monitoring, and build early research tools so risk is easier to see.
Reksar Lab in brief
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What we study
Water and environmental risk
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How we work
Start from the water. Study the whole system. Focus on risk.
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Two laboratories
Catchment Lab · Basin Lab
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Methods we use
Monitoring, models, data, and — where they help — machine learning, sensors and digital tools
Why We Exist
The water system is continuous. Information about that system is not.
Flooding, drought, groundwater depletion, contamination and fragmented management are often treated as separate problems. Physically, they are interconnected.
- 01Drivers
- 02Water System Change
- 03Water Risk
- 04Consequences
Four Conditions of Water Risk
Too Much
Flooding and standing water
Too Little
Drought and depletion
Too Dirty
Pollution and contamination
Poorly Managed
Data gaps and fragmentation
Our Research
Two Laboratories. One Connected Water System.
Catchment Lab studies rivers and rainfall. Basin Lab studies groundwater. We also study how the two meet.
Catchment Lab
Surface Water Systems
- Rainfall–runoff
- Rivers & drainage
- Flood & inundation
- Hydrological drought
Explore →
Connected Water Systems
Surface Water ↔ Groundwater
- Rivers and aquifers exchanging water
- How a change in one place can affect another
- Water quality and contamination
- Data, monitoring and digital tools
Explore →
Basin Lab
Groundwater Systems
- Recharge
- Aquifer storage
- Abstraction
- Groundwater drought
Explore →
Our Research Approach
How We Work
From what we measure to what we can say.
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Observe
Field measurements and monitoring
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Understand
How the water system works
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Model
Physics and statistics; machine learning only if it helps
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Predict
Forecasts, scenarios and what we do not know
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Advise
What the findings mean for risk
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Learn
New questions from the results
Physics firstOnly as complex as the dataUseful for real questionsTransparencyReproducibilityUncertaintyIndependence
Study areas
Research in real water systems
We stay with two long-term study areas so we can measure, test methods and go deep — not hop from site to site.
Catchment Lab
Ciliwung–Cisadane
Scoping / In Preparation
Ciliwung Catchment Observation Foundation
First rainfall and river measurements and records for Catchment Lab.
Open Catchment Lab →Basin Lab
Jakarta Groundwater Basin
Planned
Jakarta Groundwater Data Availability & Gap Assessment
What groundwater data exists, what is missing, and what can honestly be modelled.
Open Basin Lab →Current Research
Current Research lists only work that is underway, in scoping, or planned. Long-term research themes are not treated as active projects.
Scoping / In Preparation
Ciliwung Catchment Observation Foundation
Catchment Lab
Setting up rainfall and river-level measurements, checking data quality and showing them on a research map.
Open research page →Planned
Jakarta Groundwater Basin Data Availability & Gap Assessment
Basin Lab
Reviewing groundwater records, wells, aquifers, pumping, recharge and land sinking to decide what we can honestly model.
Open research page →Scoping
Abstraction–Subsidence–Flood Exposure
Connected Water Systems
First research that links the two long-term study areas.
Open research page →Research Outputs
What we have published.
The same evidence can appear as a paper, a short brief, a note or a tool.
Nothing published yet
No recent outputs to display.
Research outputs will appear here as they are published.
Collaboration
We work with others.
We work with researchers, universities, government, funders, communities and technology partners when that improves data, methods or public findings.
GovernmentAcademiaResearch institutionsFundersCommunitiesTechnology partners
Collaborate with Reksar Lab →