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GHGSat Product Information

GHGSat's imagery and data products are summarised in the table, using definitions consistent with the NASA Earth Observing System Data and Information System (EOSDIS).

LevelEOSDIS DefinitionGHGSat ProductsProduct DescriptionFormat
Level 2Derived geophysical variables at the same resolution and location as source data.Surface Reflectance ImageAtmospherically corrected, per-pixel apparent surface reflectance at 1650 nmGeoTIFF (16-bit)
Level 2Derived geophysical variables at the same resolution and location as the source data.Abundance DatasetSet of (a) per-pixel column density (mol/m2) for a single species with the average atmospheric background removed, and (b) per-pixel measurement error expressed as a standard deviationGeoTIFF (16-bit)
Level 2Derived geophysical variables at the same resolution and location as the source data.Concentration MapsA high readability pseudocolor map combining (a) surface background imagery and (b) column density expressed in mol/m2 for a single species for any isolated emissionsPNG
Level 4Model output or results from analyses of lower level data (i.e. variables derived from multiple measurements).Emission RatesThe position of the targeted emission source and the emission rate and associated error estimated using abundance dataset(s) and applying dispersion modelling techniques. This product includes the Abundance Dataset and the Concentration Maps productsCSV
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