N: 90 S: -90 E: 180 W: -180
Description
The OMI/Aura Sulphur Dioxide (SO2) Total Column 1-orbit L2 Swath 13x24 km (OMSO2) data product has been updated with a principal component analysis (PCA)-based algorithm (v2) with new SO2 Jacobian lookup tables and a priori profiles that significantly improve retrievals for anthropogenic SO2. The data files (or granules) contain different estimates of the vertical column density (VCD) of SO2 depending on the users investigating anthropogenic or volcanic sources. Files also contain quality flags, geolocation and other ancillary information. The lead scientist for the OMSO2 product is Can Li.
The OMSO2 files are stored in the version 5 EOS Hierarchical Data Format (HDF-EOS5). Each file contains data from the daylit half of an orbit (~53 minutes). There are approximately 14 orbits per day. The resolution of the data is 13x24 km2 at nadir, with a swath width of 2600 km and 60 pixels per scan line every 2 seconds.
Product Summary
Citation
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PUBLICATIONS
Publications Citing This Dataset
| Title | Year Sort ascending | Author | Topic |
|---|---|---|---|
| New submodel for emissions from Explosive Volcanic ERuptions (EVER v1. 1) within the Modular Earth Submodel System (MESSy, version 2.55. 1) | Kohl, Matthias, Bruhl, Christoph, Schallock, Jennifer, Tost, Holger, Jockel, Patrick, Jost, Adrian, Beirle, Steffen, Hopfner, Michael, Pozzer, Andrea | Sulfur Dioxide | |
| Estimating surface sulfur dioxide concentrations from satellite data over eastern China: Using chemical transport models vs. machine learning | Watson, Zachary, Li, Can, Liu, Fei, Freeman, Sean W., Zhang, Huanxin, Wang, Jun, Lee, Shan-Hu | Sulfur Dioxide, Sulfate Particles, Sulfur Oxides, Volcanic Eruptions | |
| Underappreciated Emission Spikes From Power Plants During Heatwaves | Liu, Song, Shu, Lei, Zhu, Lei, Song, Yu, Sun, Wenfu, Chen, Yuyang, Wang, Dakang, Pu, Dongchuan, Li, Xicheng, Sun, Shuai, Li, Juan, Zuo, Xiaoxing, Fu, Weitao, Yang, Xin, Fu, TzungMay | Nitrogen Dioxide, Sulfur Dioxide | |
| Assessment of air quality in North Korea from satellite observations | Chong, Heesung, Lee, Seoyoung, Cho, Yeseul, Kim, Jhoon, Koo, Ja-Ho, Pyo Kim, Yong, Kim, Younha, Woo, Jung-Hun, Hyun Ahn, Dha | Nitrogen Dioxide, Sulfur Dioxide | |
| Reservoir depressurization driven by passive gas emissions at Ambrym volcano | Shreve, T., Grandin, R., Boichu, M. | Sulfur Dioxide | |
| Towards a New MAX-DOAS Measurement Site in the Po Valley: NO2 Total VCDs | Pettinari, Paolo, Castelli, Elisa, Papandrea, Enzo, Busetto, Maurizio, Valeri, Massimo, Dinelli, Bianca Maria | Sulfur Dioxide | |
| Version 2 Ozone Monitoring Instrument SO2 product (OMSO2 V2): new anthropogenic SO2 vertical column density dataset | Li, Can, Krotkov, Nickolay A., Leonard, Peter J. T., Carn, Simon, Joiner, Joanna, Spurr, Robert J. D., Vasilkov, Alexander | Aerosol Optical Depth/Thickness, Atmospheric Ozone, Reflectance, Sulfur Dioxide | |
| Detection of the dispersion and residence of volcanic SO2 and sulfate aerosol from Nabro in 2011 | Liu, Yang, Pellikka, Petri K.E., Li, Hansunbai, Fang, Xiuqi | Sulfur Dioxide | |
| African volcanic emissions influencing atmospheric aerosols over the Amazon rain forest | Saturno, Jorge, Ditas, Florian, Penning de Vries, Marloes, Holanda, Bruna A., Pohlker, Mira L., Carbone, Samara, Walter, David, Bobrowski, Nicole, Brito, Joel, Chi, Xuguang, Gutmann, Alexandra, Hrabe de Angelis, Isabella, Machado, Luiz A. T., Moran-Zuloaga, Daniel, Rudiger, Julian, Schneider, Johannes, Schulz, Christiane, Wang, Qiaoqiao, Wendisch, Manfred, Artaxo, Paulo, Wagner, Thomas, Poschl, Ulrich, Andreae, Meinrat O., Pohlker, Christopher | Sulfur Dioxide | |
| Comparison and evaluation of anthropogenic emissions of SO2 and NOx over China | Li, Meng, Klimont, Zbigniew, Zhang, Qiang, Martin, Randall V., Zheng, Bo, Heyes, Chris, Cofala, Janusz, Zhang, Yuxuan, He, Kebin | Sulfur Dioxide | |
| SO2 seasonal variation and assessment of Ozone Monitoring Instrument (OMI) measurements at Sharpeville (27.86 E; 26.68 S) a South African ground-based ... | Sangeetha, S. K., Sivakumar, V., Josipovic, M., Gebreslasie, M., Wright, C. Y. | Sulfur Dioxide | |
| Enhanced carbon export to the abyssal depths driven by atmosphere | PedrosaPamies, R., SanchezVidal, A., Canals, M., Lampadariou, N., Velaoras, D., Gogou, A., Parinos, C., Calafat, A. | Sulfur Dioxide |
Variables
The table below lists the variables contained within a single granule for this dataset. Variables often contain observed or derived geophysical measurements collected from a variety of sources, including remote sensing instruments on satellite and airborne platforms, field campaigns, in situ measurements, and model outputs. The terms variable, parameter, scientific data set, layer, and band have been used across NASA’s Earth science disciplines; however, variable is the designated nomenclature in NASA’s Common Metadata Repository (CMR). Variable metadata attributes such as Name, Description, Units, Data Type, Fill Value, Valid Range, and Scale Factor allow users to efficiently process and analyze the data. The full range of attributes may not be applicable to all variables. Additional information on variable attributes is typically available in the data, user guide, and/or other product documentation.
For questions on a specific variable, please use the Earthdata Forum.
| Name Sort descending | Description | Units | Data Type | Fill Value | Valid Range | Scale Factor | Offset |
|---|---|---|---|---|---|---|---|
| HDFEOS/SWATHS/OMI Total Column Amount SO2/Data Fields/AlgorithmFlag_SnowIce | Snow-Ice Algorithm Flag | 1 | uint8 | 255 | N/A | N/A | N/A |
| HDFEOS/SWATHS/OMI Total Column Amount SO2/Data Fields/CloudFraction | Effective Cloud Fraction (from OMCLDRR) | 1 | float32 | -1.2676506002282E+30 | N/A | N/A | N/A |
| HDFEOS/SWATHS/OMI Total Column Amount SO2/Data Fields/CloudPressure | Optical Centroid Pressure (from OMCLDRR) | hPa | float32 | -1.2676506002282E+30 | N/A | N/A | N/A |
| HDFEOS/SWATHS/OMI Total Column Amount SO2/Data Fields/CloudRadianceFraction | Cloud Radiance Fraction at 313 nm | 1 | float32 | -1.2676506002282E+30 | N/A | N/A | N/A |
| HDFEOS/SWATHS/OMI Total Column Amount SO2/Data Fields/ColumnAmountO3 | Best Total Ozone Solution (from OMTO3) | DU | float32 | -1.2676506002282E+30 | N/A | N/A | N/A |
| HDFEOS/SWATHS/OMI Total Column Amount SO2/Data Fields/ColumnAmountSO2 | Vertical Column Amount SO2 (GEOS-5 Profile) | DU | float32 | -1.2676506002282E+30 | N/A | N/A | N/A |
| HDFEOS/SWATHS/OMI Total Column Amount SO2/Data Fields/ColumnAmountSO2_PBL | Vertical Column Amount SO2 (PBL, Fixed Profile) | DU | float32 | -1.2676506002282E+30 | N/A | N/A | N/A |
| HDFEOS/SWATHS/OMI Total Column Amount SO2/Data Fields/ColumnAmountSO2_STL | Vertical Column Amount SO2 (STL, Fixed Profile) | DU | float32 | -1.2676506002282E+30 | N/A | N/A | N/A |
| HDFEOS/SWATHS/OMI Total Column Amount SO2/Data Fields/ColumnAmountSO2_TRL | Vertical Column Amount SO2 (TRL, Fixed Profile) | DU | float32 | -1.2676506002282E+30 | N/A | N/A | N/A |
| HDFEOS/SWATHS/OMI Total Column Amount SO2/Data Fields/ColumnAmountSO2_TRM | Vertical Column Amount SO2 (TRM, Fixed Profile) | DU | float32 | -1.2676506002282E+30 | N/A | N/A | N/A |
| HDFEOS/SWATHS/OMI Total Column Amount SO2/Data Fields/ColumnAmountSO2_TRU | Vertical Column Amount SO2 (TRU, Fixed Profile) | DU | float32 | -1.2676506002282E+30 | N/A | N/A | N/A |
| HDFEOS/SWATHS/OMI Total Column Amount SO2/Data Fields/Flag_RowAnomaly | OMTO3 Row-Anomaly Flag | 1 | uint8 | 255 | N/A | N/A | N/A |
| HDFEOS/SWATHS/OMI Total Column Amount SO2/Data Fields/Flag_SAA | South Atlantic Anomaly Flag | 1 | uint8 | 255 | N/A | N/A | N/A |
| HDFEOS/SWATHS/OMI Total Column Amount SO2/Data Fields/GEOS5LayerWeight | GEOS-5 Layer Weight | 1 | float32 | -1.2676506002282E+30 | N/A | N/A | N/A |
| HDFEOS/SWATHS/OMI Total Column Amount SO2/Data Fields/LayerBottomPressure | Layer Bottom Pressure | hPa | float32 | -1.2676506002282E+30 | N/A | N/A | N/A |
| HDFEOS/SWATHS/OMI Total Column Amount SO2/Data Fields/PBLLayerWeight | PBL Layer Weight | 1 | float32 | -1.2676506002282E+30 | N/A | N/A | N/A |
| HDFEOS/SWATHS/OMI Total Column Amount SO2/Data Fields/RadiativeCloudFraction | Radiative Cloud Fraction at 313 nm | 1 | float32 | -1.2676506002282E+30 | N/A | N/A | N/A |
| HDFEOS/SWATHS/OMI Total Column Amount SO2/Data Fields/Reflectivity342 | Simple Lambertian Equivalent Reflectivity at 342 nm | 1 | float32 | -1.2676506002282E+30 | N/A | N/A | N/A |
| HDFEOS/SWATHS/OMI Total Column Amount SO2/Data Fields/RootMeanSquareFittingResiduals | Root Mean Square of Fitting Residuals in N-value | 1 | float32 | -1.2676506002282E+30 | N/A | N/A | N/A |
| HDFEOS/SWATHS/OMI Total Column Amount SO2/Data Fields/ScatteringWeight | Scattering Weight at 313 nm | 1 | float32 | -1.2676506002282E+30 | N/A | N/A | N/A |
| HDFEOS/SWATHS/OMI Total Column Amount SO2/Data Fields/SceneReflectivity354 | Scene Reflectivity at 354 nm (from OMCLDRR) | 1 | float32 | -1.2676506002282E+30 | N/A | N/A | N/A |
| HDFEOS/SWATHS/OMI Total Column Amount SO2/Data Fields/SlantColumnAmountSO2 | Slant Column Amount SO2 | molecules/cm2 | float32 | -1.2676506002282E+30 | N/A | N/A | N/A |
| HDFEOS/SWATHS/OMI Total Column Amount SO2/Data Fields/SurfaceReflectivity | Surface Reflectivity at 360 nm (from OMCLDRR) | 1 | float32 | -1.2676506002282E+30 | N/A | N/A | N/A |
| HDFEOS/SWATHS/OMI Total Column Amount SO2/Data Fields/TerrainPressure | Terrain Pressure | hPa | float32 | -1.2676506002282E+30 | N/A | N/A | N/A |
| HDFEOS/SWATHS/OMI Total Column Amount SO2/Data Fields/VolcanicAshIndex | Volcanic Ash Index (342.5-367 nm) | 1 | float32 | -1.2676506002282E+30 | N/A | N/A | N/A |
| HDFEOS/SWATHS/OMI Total Column Amount SO2/Geolocation Fields/GroundPixelArea | Ground Pixel Area | km2 | float32 | -1.2676506002282E+30 | N/A | N/A | N/A |
| HDFEOS/SWATHS/OMI Total Column Amount SO2/Geolocation Fields/GroundPixelQualityFlags | Ground Pixel Quality Flags | 1 | uint16 | 65535 | N/A | N/A | N/A |
| HDFEOS/SWATHS/OMI Total Column Amount SO2/Geolocation Fields/Latitude | Geodetic Latitude | degrees_north | float32 | -1.2676506002282E+30 | N/A | N/A | N/A |
| HDFEOS/SWATHS/OMI Total Column Amount SO2/Geolocation Fields/Longitude | Geodetic Longitude | degrees_east | float32 | -1.2676506002282E+30 | N/A | N/A | N/A |
| HDFEOS/SWATHS/OMI Total Column Amount SO2/Geolocation Fields/RelativeAzimuthAngle | Relative Azimuth Angle (sun + 180 - view) | degrees | float32 | -1.2676506002282E+30 | N/A | N/A | N/A |
| HDFEOS/SWATHS/OMI Total Column Amount SO2/Geolocation Fields/SecondsInDay | Seconds After UTC Midnight | s | float32 | -1.2676506002282E+30 | N/A | N/A | N/A |
| HDFEOS/SWATHS/OMI Total Column Amount SO2/Geolocation Fields/SolarAzimuthAngle | Solar Azimuth Angle (East of North) | degrees | float32 | -1.2676506002282E+30 | N/A | N/A | N/A |
| HDFEOS/SWATHS/OMI Total Column Amount SO2/Geolocation Fields/SolarZenithAngle | Solar Zenith Angle | degrees | float32 | -1.2676506002282E+30 | N/A | N/A | N/A |
| HDFEOS/SWATHS/OMI Total Column Amount SO2/Geolocation Fields/SpacecraftAltitude | Spacecraft Altitude | m | float32 | -1.2676506002282E+30 | N/A | N/A | N/A |
| HDFEOS/SWATHS/OMI Total Column Amount SO2/Geolocation Fields/SpacecraftLatitude | Spacecraft Latitude | degrees_north | float32 | -1.2676506002282E+30 | N/A | N/A | N/A |
| HDFEOS/SWATHS/OMI Total Column Amount SO2/Geolocation Fields/SpacecraftLongitude | Spacecraft Longitude | degrees_east | float32 | -1.2676506002282E+30 | N/A | N/A | N/A |
| HDFEOS/SWATHS/OMI Total Column Amount SO2/Geolocation Fields/TerrainHeight | Terrain Height | m | int16 | -32767 | N/A | N/A | N/A |
| HDFEOS/SWATHS/OMI Total Column Amount SO2/Geolocation Fields/TiledCornerLatitude | Tiled Corner Latitude (from L1B) | degrees_north | float32 | -1.2676506002282E+30 | N/A | N/A | N/A |
| HDFEOS/SWATHS/OMI Total Column Amount SO2/Geolocation Fields/TiledCornerLongitude | Tiled Corner Longitude (from L1B) | degrees_east | float32 | -1.2676506002282E+30 | N/A | N/A | N/A |
| HDFEOS/SWATHS/OMI Total Column Amount SO2/Geolocation Fields/Time | Time of Scan (TAI93) | seconds since 1993-01-01 00:00:00 | float64 | -1.2676506002282E+30 | N/A | N/A | N/A |
| HDFEOS/SWATHS/OMI Total Column Amount SO2/Geolocation Fields/ViewingAzimuthAngle | Viewing Azimuth Angle (East of North) | degrees | float32 | -1.2676506002282E+30 | N/A | N/A | N/A |
| HDFEOS/SWATHS/OMI Total Column Amount SO2/Geolocation Fields/ViewingZenithAngle | Viewing Zenith Angle | degrees | float32 | -1.2676506002282E+30 | N/A | N/A | N/A |
| HDFEOS INFORMATION/ArchivedMetadata | HDFEOS INFORMATION/ArchivedMetadata | N/A | OTHER | N/A | N/A | N/A | N/A |
| HDFEOS INFORMATION/CoreMetadata | HDFEOS INFORMATION/CoreMetadata | N/A | OTHER | N/A | N/A | N/A | N/A |
| HDFEOS INFORMATION/StructMetadata.0 | HDFEOS INFORMATION/StructMetadata.0 | N/A | OTHER | N/A | N/A | N/A | N/A |