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Description

ML3DBSO2 is the EOS Aura Microwave Limb Sounder (MLS) daily binned on various vertical grids product for sulfur dioxide (SO2) derived from radiances measured by the 240 GHz radiometer. The data version is 5.1. Spatial coverage is near-global (-82 to +82 degrees latitude) at a spatial resolution of 4 degrees latitude by 5 degrees longitude. The recommended useful vertical range is from 215 to 10 hPa, and the vertical resolution is about 3 km. Users of the ML3DBSO2 data product should read chapter 4 and section 3.21 of the EOS MLS Level 2 Version 5 Quality Document for more information.

The data files are archived in the netCDF4 format, which is also compatible with HDF5 readers and tools. Each file contains six group objects: lat-lon map vs pressure, lat vs pressure zonal mean, lat-lon map vs theta, lat vs theta zonal mean, equivalent lat vs theta zonal mean, and vortex average vs theta. Each group has a set of data (average, min, max, std dev, rms) and geolocation fields, grid attributes, and metadata.

Version Description

Version 005 is the most recent version of this data product. Please see the MLS Data Quality and Description Document for detailed description and differences of this and previous versions.

Version 004 - Released 2020-04-20 - doi:10.5067/Aura/MLS/DATA/3120
Data coverage: 2004-08-02 to present.

Product Summary

Platforms
Aura
Instruments
MLS
Spatial Extent

N: 82 S: -82 E: 180 W: -180

Geographic Region
GLOBAL ,
STRATOSPHERE
Coordinate System
CARTESIAN
Granule Spatial Representation
CARTESIAN
Temporal Extent
2004-08-02 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
C2042566261-GES_DISC
Data State
ACTIVE
Number of Files/Granules
7710
Processing Level
3
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

Read, W. (2021). MLS/Aura Level 3 Daily Binned Sulfur Dioxide (SO2) Mixing Ratio on Assorted Grids V005 [Data set]. NASA Goddard Earth Sciences Data and Information Services Center. https://doi.org/10.5067/AURA/MLS/DATA/3519 Date Accessed: 2026-01-11

Documents

USER'S GUIDE

ALGORITHM THEORETICAL BASIS DOCUMENT (ATBD)

PUBLICATIONS