Skip to main content

Description

The OMI/Aura Sulphur Dioxide (SO2) Noise Reduced Total Column 1-orbit L2 Swath 13x24 km (OMSO2NR) data product is a research product made public. 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 OMSO2NR product is Can Li.

The OMSO2NR files are stored in the version 5 Hierarchical Data Format (HDF5). 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

Platforms
Aura
Instruments
OMI
Projects
Aura
Spatial Extent

N: 90 S: -90 E: 180 W: -180

Spatial Resolution
24 Kilometers x 13 Kilometers
Location
GLOBAL
Coordinate System
CARTESIAN
Granule Spatial Representation
GEODETIC
Temporal Extent
2004-10-01 to Present
Data Partner
Goddard Earth Sciences Data and Information Services Center (formerly Goddard DAAC), Terrestrial Information Systems Laboratory, Earth Sciences Division, Science and Exploration Directorate, Goddard Space Flight Center, NASA (NASA/GSFC/SED/ESD/TISL/GESDI
Concept ID
C4217517896-GES_DISC
Data State
ACTIVE
Number of Files/Granules
108042
Processing Level
2
Published
Updated
Science Keywords
Sulfur Dioxide

Citation

Citation is critically important for dataset documentation and discovery. This dataset is openly shared, without restriction, in accordance with the EOSDIS Data Use and Citation Guidance.

Copy Citation

Can Li. (2026). OMI/Aura Sulphur Dioxide (SO2) Noise Reduced Total Column 1-orbit L2 Swath 13x24 km [Dataset]. NASA Goddard Earth Sciences Data and Information Services Center. https://doi.org/10.5067/AURA/OMI/DATA2442 Date Accessed: 2026-07-28

Documents