ODLAR
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  • Harmonization
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Simple mode

Harmonization lab

Put the raw and harmonized records side by side, and inspect the calibration function and how it was validated.

Annual detections

Raw↔Harmonized

Raw: +82%/10Harmonized: −26%/10
RawHarmonized

Transfer function

A MODIS weekly count against the VIIRS value at the same quantile, by season. The steeper the curve, the more fires MODIS misses.

WinterSummerSpringAutumn

Validation: leave one year out

Each year from 2012 on is held out of the calibration, its MODIS data harmonized, and the result compared with what VIIRS actually saw that year.

Harmonized MODISRaw MODIS

Overall bias

+1.3%

Raw MODIS bias: −75%

90% interval coverage

88%

Weekly interval coverage: 94%

Annual rank correlation

0.94

Median annual error

21%

ODLAR

One fire history for the Land of Fire.

Built for the NASA Space Apps Challenge 2026.

ExploreRegionsRiskHarmonizationMethodologyDataSimple mode

Data sources

NASA FIRMS, NASA POWER, Open-Meteo, OpenStreetMap, geoBoundaries, OpenFreeMap

ODLAR is not an official warning service. In an emergency call 112.