We measure the rain with science: we use information sources are validated by the top scientific institutions in the world, quality and reliable
With the systems of assessment that we use in RainMaker® we evaluate each operation of stimulation of rainfall by combining satellite data, weather radar, and other sources of qualitative relevant that enable us to provide reliable results and verifiable.
Forecast (AIRS – NASA)
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The sensor Atmospheric Infrared Sounder (AIRS) measured atmospheric variables such as humidity, temperature and pressure at the top of the clouds.
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From these variables, it generates a forecast estimated precipitation on each area of interest.
AIRS/NASA Officer
https://www.rainmaker.ooo/wp-content/uploads/2025/09/Temp_Trends5.mp4
Actual measurement (IMERG/GPM)
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The system Integrated Multi-satellite Retrievals for GPM (IMERG) combines data from microwave and infrared constellation satellite GPM (Global Precipitation Measurement).
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Offers maps of rain observed every 30 minutes, with a resolution of up to 10×10 km, calibrated with data from rain gauges on the surface.
GPM/IMERG Official
https://www.rainmaker.ooo/wp-content/uploads/2025/09/imergert_1080p_30.mp4
Comparison and Delta efficiency
Step 1
Area impaco
We define a surface area of evaluation (e.g. a river basin or agricultural area).
Step 2
Calculation
We estimate the rain predicted for AIRS and the rain measured by IMERG on that same surface.
Step 3
Control
We take a control area (not sown) to rule out natural variations.
Step 4
Effect
The difference obtained is the delta of efficiency of precipitation, indicator of the positive effect of cloud seeding.
📊 The scientific basis
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Both AIRS as IMERG/GPM are models satellite of NASA and JAXA, designed to research global climate.
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Are calibrated with data from earth (new Doppler radars, weather stations, rain gauges), which gives them a high level of reliability.
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The method of comparison (forecast vs. actual measurement + control) follows the same logic of international studies of modification of climate.
TITAN: when there are available radar
When there is a Doppler radar in operation, we use TITAN (Thunderstorm Identification, Tracking, Analysis and Nowcasting):
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It is a system of analysis of cells of storm developed in EE. UU. and recommended by the World Meteorological Organization.
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It allows comparing cells treated versus non-treated and quantify the increase in the precipitation in a direct way.
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Although not always available in Mexico due to the limited coverage of radars, we integrate whenever possible.
🌱 We supplemented with qualitative indicators
To strengthen the reliability, we add variables hints that show the impact on the territory:
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Index of greenness (NDVI): compared with historical averages to identify improvements in vegetation cover after the rains.
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Behavior of prey: variations in the storage linked to the periods of stimulation.
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Visual evidence: satellite images, and comparative before-and-after.
