Prod­uct com­par­i­son – sul­phur diox­ide cloud over Hawaii

Product comparison – sulphur dioxide cloud over Hawaii
Prod­uct com­par­i­son – sul­phur diox­ide cloud over Hawaii
Credit: Copernicus-Sentinel (2018), DLR/BIRA/ESA.

Product comparison – sulphur dioxide cloud over Hawaii

The high res­o­lu­tion of the new Coper­ni­cus satel­lite Sen­tinel-5 Pre­cur­sor (S5P) al­lows, for the first time, the de­tec­tion of close­ly sep­a­rat­ed sources and a more ac­cu­rate de­ter­mi­na­tion of the prop­a­ga­tion of vol­canic ash clouds. The graph­ic shows the sul­phur diox­ide cloud over Hawaii af­ter the erup­tion of the Ki­lauea vol­cano. On the left is the mea­sure­ment re­sult from the Sen­tinel-5P TROPO­MI in­stru­ment, and on the right the re­sult the GOME-2 in­stru­ment car­ried by the EU­MET­SAT MetOp A and B satel­lites. GOME-2 has a res­o­lu­tion of 40 × 80 kilo­me­tres, so that the dis­tinc­tion be­tween mul­ti­ple sul­phur diox­ide sources is not pos­si­ble. The im­age con­tains mod­i­fied Coper­ni­cus Sen­tinel da­ta (2018), pro­cessed by DLR / BI­RA.

The high resolution of the new Copernicus satellite Sentinel-5 Precursor (S5P) allows, for the first time, the detection of closely separated sources and a more accurate determination of the propagation of volcanic ash clouds. The graphic shows the sulphur dioxide cloud over Hawaii after the eruption of the Kilauea volcano. On the left is the measurement result from the Sentinel-5P TROPOMI instrument, and on the right the result the GOME-2 instrument carried by the EUMETSAT MetOp A and B satellites. GOME-2 has a resolution of 40 × 80 kilometres, so that the distinction between multiple sulphur dioxide sources is not possible. The image contains modified Copernicus Sentinel data (2018), processed by DLR / BIRA.

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