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Aerosol Direct Radiative Effect
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Tropospheric
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NO2
- global CH2O - global CO - global |
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UV
- UV index - UV dose |
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Ozone
- total column - global field - ozone bulletin - ozone profiles - tropospheric |
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Aerosol
- ADRE - aerosol index Methane - global CO2 - global Clouds - cloud info Surface - solar irradiance |
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Volcanic plume
- SO2 & AAI |
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Albedo
- climatologies Fluorescence - sun-induced |
Aerosol DRE from OMI and SCIAMACHY
South Atlantic Ocean
The aerosol Direct Radiative Effect (DRE) indicates the absorption of UV radiation by aerosols that are found over clouds. The aerosol DRE presented here are derived over a limited area off the west coast of Africa only, and the aerosols found above the clouds are smoke exclusively. The DRE is expressed in Watts per square meter (W m-2) based on the Differential Aerosol Absorption (DAA) technique, and derived from the instruments SCIAMACHY and OMI (combined with MODIS). Below the data products that are currently available from these instruments can be accessed.
| OMI-MODIS | SCIAMACHY |
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The OMI-MODIS aerosol DRE over clouds is available from June-October in the years
2005-2020, in an area over the south-east Atlantic (20°W-10°E, 20°S-10°N).
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The SCIAMACHY aerosol DRE over clouds is available from June-September in the years 2006-2009, in an area over the south-east Atlantic (20°W-10°E, 20°S-10°N). |
Chilean wildfires
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Archive (images and data)
| OMI / MODIS : | South Atlantic version 1.0 (JJAS 2005-2020): individual days | monthly mean | explanation | Chile wildfires version 1.0 (DJ 2017,2023): individual days |
| SCIAMACHY: | South Atlantic version 1.0 (JJAS 2006-2009): individual days | monthly mean | explanation |
Data use
The data are not copyrighted and are open to all for both commercial and non-commercial uses. If you used TEMIS Aerosol DRE data, please refer to the TEMIS Aerosol DRE data in the following way:
Data citation
OMI data citation:De Graaf, M., Stammes, P., & Tilstra, L. G. (2019). OMI-MODIS aerosol direct radiative effect over clouds, version 1.0. Accessed: [Data access date] Royal Netherlands Meteorological Institute (KNMI). https://doi.org/10.21944/omi-modis-aerosol-direct-effectSCIAMACHY data citation:
De Graaf, M., Stammes, P., & Tilstra, L. G. (2019). SCIAMACHY aerosol direct radiative effect over clouds, version 1.0. Accessed: [Data access date]. Royal Netherlands Meteorological Institute (KNMI). https://doi.org/10.21944/sciamachy-aerosol-direct-effect
Documentation
The OMI-MODIS direct radiative effect (DRE) data product is described in this Algorithm Theoretical Basis Document.If you used TEMIS Aerosol DRE data for a publication (research or otherwise), or for any other purpose, please refer to the following publication:
For OMI data over the south-east Atlantic:
M. de Graaf, L.G. Tilstra, and P. Stammes, Aerosol direct radiative effect over clouds from a synergy of OMI and MODIS reflectances, Atmos. Meas. Techn., https://doi.org/10.5194/amt-12-5119-2019, doi:/10.5194/amt-12-5119-2019, 2019.For OMI data during the 2017 or 2023 wildfire season in Chile:
M. de Graaf, L.G. Tilstra and P. Stammes, Aerosol shortwave radiative heating and cooling by the 2023 and 2017 Chilean wildfire smoke plumes, Geoph. Res. Letters, in review, 2023For SCIAMACHY:
M. de Graaf, L.G. Tilstra, P. Wang and P. Stammes, Retrieval of the aerosol direct radiative effect over clouds from space-borne spectrometry, J. Geophys. Res. 117 (D7), D07207, doi: 10.1029/2011JD017160, 2012.We request that you include the following acknowledgment: "We acknowledge the free use of aerosol DRE data from the (OMI/SCIAMACHY) sensor from www.temis.nl." We would appreciate receiving a copy of your publication, by contacting us via the contact form.