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.
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PUBLICATIONS
Publications Citing This Dataset
| Title | Year Sort ascending | Author | Topic |
|---|---|---|---|
| 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 | |
| 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 | |
| Air quality trends and regimes in South Korea inferred from 20152023 surface and satellite observations | Oak, Yujin J., Jacob, Daniel J., Pendergrass, Drew C., Dang, Ruijun, Colombi, Nadia K., Chong, Heesung, Lee, Seoyoung, Kuk, Su Keun, Kim, Jhoon | Sulfur Dioxide, Nitrogen Dioxide, Carbon And Hydrocarbon Compounds | |
| Investigating the impacts of Nyamuragira volcano eruption of 2006 on regional weather over the Congo Basin with the WRF-Chem model | Idrissa, Nkurunziza Fabien, Hu, Zhiyuan, Zhao, Chun, Du, Qiuyan, Lin, Shengfu, Feng, Jiawang | Sulfur Dioxide | |
| Quantifying uncertainties in satellite NO2 superobservations for data assimilation and model evaluation | Rijsdijk, Pieter, Eskes, Henk, Dingemans, Arlene, Boersma, K. Folkert, Sekiya, Takashi, Miyazaki, Kazuyuki, Houweling, Sander | Sulfur Dioxide | |
| Large increase in anthropogenic emissions in an urban environment and their associated air quality implications | Ahmad, Mubarak, Ahmad, Maqbool, Alam, Khan, Zeb, Bahadar, Khan, Komal, Ditta, Allah | Nitrogen Dioxide, Sulfur Dioxide | |
| Nucleation mode aerosol particles estimation using satellite-based proxies over western Himalayan region, Uttarakhand, India | Singh, Karan, Gautam, Alok Sagar, Kumar, Sanjeev | Ultraviolet Radiation, Solar Irradiance, Nitrogen Dioxide, Sulfur Dioxide, Nitrogen Dioxide | |
| 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 | |
| Machine Learning approach to investigating the relative importance of meteorological and aerosol-related parameters in determining cloud microphysical ... | Bender, Frida A.-M., Lord, Tobias, Staffansdotter, Anna, Jung, Verena, Undorf, Sabine | Sulfur Dioxide | |
| Remote sensing of eruptions and transport of Taal volcano in January 2020 | Nee, Jan-Bai, Chang, Yuan-Pin, Wang, Chia C. | Sulfur Dioxide | |
| Synthesis of satellite and ground data provide unique perspectives for discovering the air pollution patterns: A case study in Guangdong Province, China | Li, Jing, Lee, Kwon Ho, Qin, Kai, Wong, Man Sing, Chan, P.W., Zhang, Zhaoyang | 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, VIEWING GEOMETRY | |
| Remote Sensing Surveillance of NO2, SO2, CO, and AOD along the Suez | Gamal, Gamil, Abdeldayem, Omar M., Elattar, Hoda, Hendy, Salma, Gabr, Mohamed Elsayed, Mostafa, Mohamed K. | Nitrogen Dioxide, Sulfur Dioxide | |
| Estimation of the ground-level SO2 concentration in eastern China based on the LightGBM model and Himawari-8 TOAR | Xu, Tan, Chen, Bin, Ren, Yuxiang, Zhao, Lin, Hu, Jiashun, Wang, Yufei, Song, Zhihao, Li, Xiang | Sulfur Dioxide | |
| Differential response of chlorophyll-a concentrations to explosive volcanism in the western South Pacific | Yoon, Joo-Eun, King, David, Longman, Jack, Cronin, Shane J. | Sulfur Dioxide | |
| Comprehensive Evaluation of Spatial Distribution and Temporal Trend of NO2, SO2 and AOD Using Satellite Observations over South and East Asia from 2011 to ... | Rahman, Md Masudur, Wang, Shuo, Zhao, Weixiong, Arshad, Arfan, Zhang, Weijun, He, Cenlin | Sulfur Dioxide | |
| People's Unequal Exposure to Air Pollution: Evidence for the World's Coal-Fired Power Plants | Du, Xinming, Rentschler, Jun, Russ, Jason | Sulfur Dioxide | |
| NeSNet: A Deep Network for Estimating Near-Surface Pollutant Concentrations | Dey, Prasanjit, Das, Bibhash Pran, Lee, Yee Hui, Dev, Soumyabrata | Sulfur Dioxide | |
| A data-augmentation approach to deriving long-term surface SO2 across Northern China: Implications for interpretable machine learning | Zhang, Shifu, Mi, Tan, Wu, Qinhuizi, Luo, Yuzhou, Grieneisen, Michael L., Shi, Guangming, Yang, Fumo, Zhan, Yu | Heat Flux, Air Temperature, Skin Temperature, Specific Humidity, Water Vapor, Precipitation Rate, Snow/Ice, Evaporation, Latent Heat Flux, Latent Heat Flux, Sensible Heat Flux, Diffusion, Surface Winds, Wind Speed, U/V Wind Components, Wind Stress, Wind Stress, Surface Roughness, Planetary Boundary Layer Height, Ice Fraction, Surface Temperature, Skin Temperature, Upper Air Temperature, Atmospheric Winds, Surface Winds, Atmospheric Pressure, Sea Level Pressure, Surface Pressure, Total Precipitable Water, Cloud Liquid Water/Ice, Atmospheric Water Vapor, Atmospheric Ozone, Oxygen Compounds, Altitude, Boundary Layer Winds, Aerosols, Aerosol Extinction, Aerosol Optical Depth/Thickness, Angstrom Exponent, Aerosol Particle Properties, Carbonaceous Aerosols, Dust/Ash/Smoke, Organic Particles, Sulfate Particles, Sulfur Oxides, Sulfur Compounds, Sulfate, Sulfur Dioxide, Sulfur Oxides, Particulate Matter, Dimethyl Sulfide, Black Carbon, Sea Salt, PARTICULATE MATTER (PM 2.5), PARTICULATE MATTER (PM 1.0), PARTICULATE MATTER (PM 10), Population Density | |
| A new machine-learning-based analysis for improving satellite-retrieved atmospheric composition data: OMI SO2 as an example | Li, Can, Joiner, Joanna, Liu, Fei, Krotkov, Nickolay A., Fioletov, Vitali, McLinden, Chris | Aerosol Optical Depth/Thickness, Atmospheric Ozone, Reflectance, Cloud Fraction, Cloud Top Pressure, ULTRAVIOLET RADIANCE, Sulfur Dioxide, Planetary Boundary Layer Height, Pressure Thickness, Surface Pressure, Upper Air Temperature, U/V Wind Components, U/V Wind Components | |
| Reservoir depressurization driven by passive gas emissions at Ambrym volcano | Shreve, T., Grandin, R., Boichu, M. | Sulfur Dioxide | |
| The effectiveness of emission control policies in regulating air pollution over coastal ports of China: Spatiotemporal variations of NO2 and SO2 | Zhang, Yang, Zhou, Rui, Chen, Jihong, Rangel-Buitrago, Nelson | Nitrogen Dioxide, Nitrogen Dioxide, Sulfur Dioxide | |
| The SALTENA Experiment: Comprehensive Observations of Aerosol Sources, Formation, and Processes in the South American Andes | Bianchi, Federico, Sinclair, Victoria A., Aliaga, Diego, Zha, Qiaozhi, Scholz, Wiebke, Wu, Cheng, Heikkinen, Liine, Modini, Rob, Partoll, Eva, Velarde, Fernando, Moreno, Isabel, Gramlich, Yvette, Huang, Wei, Koenig, Alkuin Maximilian, Leiminger, Markus, Enroth, Joonas, Perakyla, Otso, Marinoni, Angela, Xuemeng, Chen, Blacutt, Luis, Forno, Ricardo, Gutierrez, Rene, Ginot, Patrick, Uzu, Gaelle, Facchini, Maria Cristina, Gilardoni, Stefania, Gysel-Beer, Martin, Cai, Runlong, Petaja, Tuukka, Rinaldi, Matteo, Saathoff, Harald, Sellegri, Karine, Worsnop, Douglas, Artaxo, Paulo, Hansel, Armin, Kulmala, Markku, Wiedensohler, Alfred, Laj, Paolo, Krejci, Radovan, Carbone, Samara, Andrade, Marcos, Mohr, Claudia | 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 | |
| Day-to-day variability of upper troposphere and lower stratosphere temperature in response to Taal volcanic eruption inferred from COSMIC-2 RO measurements | Babu, Saginela Ravindra, Liou, Yuei-An | 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 |