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Description

As part of the NASA's Making Earth System Data Records for Use in Research Environments (MEaSUREs) program, this project entitled “Multi-Decadal Nitrogen Dioxide and Derived Products from Satellites (MINDS)” will develop consistent long-term global trend-quality data records spanning the last two decades, over which remarkable changes in nitrogen oxides (NOx) emissions have occurred. The objective of the project Is to adapt Ozone Monitoring Instrument (OMI) operational algorithms to other satellite instruments and create consistent multi-satellite L2 and L3 nitrogen dioxide (NO2) columns and value-added L4 surface NO2 concentrations and NOx emissions data products, systematically accounting for instrumental differences. The instruments include Global Ozone Monitoring Experiment (GOME, 1996-2011), SCanning Imaging Absorption spectroMeter for Atmospheric CHartographY (SCIAMACHY, 2002-2012), OMI (2004-present), GOME-2 (2007-present), and TROPOspheric Monitoring Instrument (TROPOMI, 2018-present). The quality assured L2-L4 products will be made available to the scientific community via the NASA GES DISC website in Climate and Forecast (CF)-compliant Hierarchical Data Format (HDF5) and netCDF formats.

Version Description

Product version: 1.1 PGEVersion: 1.1.4

Product Summary

Platforms
Aura
Instruments
OMI
Spatial Extent

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

Geographic Region
GLOBAL
Coordinate System
CARTESIAN
Granule Spatial Representation
CARTESIAN
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
C2215175232-GES_DISC
Data State
ACTIVE
Number of Files/Granules
7345
Processing Level
3
Published
Updated
Science Keywords
Atmospheric Nitric Acid ,
Nitric Oxide ,
Nitrogen Dioxide ,
Nitrogen Oxides ,
Nitrous Oxide

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

Lamsal, L., & Krotkov, N. (2022). OMI/Aura NO2 Tropospheric, Stratospheric and Total Columns MINDS Daily L3 Global Gridded 0.25 degree x 0.25 degree V1.1 [Data set]. NASA Goddard Earth Sciences Data and Information Services Center. https://doi.org/10.5067/MEASURES/MINDS/DATA304 Date Accessed: 2025-12-13

Documents

READ-ME

Variables

Variables are a set of physical properties whose values determine the characteristics or behavior of something. For example, temperature and pressure are variables of the atmosphere. Parameters and variables can be used interchangeably. Variable level attributes provide individual information for each variable.

The Name in this table is the variable name. Fill value indicates missing or undefined data points in a variable. Valid range is the range of values the variable can store. Scale factor is used to increase or decrease the size of an object and can be used to correct for distortion. For questions on a specific variable, please use the Earthdata Forum.

Name Description Units Data Type Fill Value Valid Range Scale Factor
BoundsIndex The index for the Bounds variables. 1 int32 N/A 1 to 2 N/A
ColumnAmountNO2 The average total NO2 vertical column density (in molec/cm2) for high quality observations with solar zenith angles less than 85 degrees. molec/cm2 float32 -1.2676506002282E+30 -999999986991104 to 999999984306749400 N/A
ColumnAmountNO2CloudScreened The average total NO2 vertical column density (in molec/cm2) for high quality observations with effective cloud fractions less than 0.3 and solar zenith angles less than 85 degrees. molec/cm2 float32 -1.2676506002282E+30 -999999986991104 to 999999984306749400 N/A
ColumnAmountNO2TropCloudScreened The average tropospheric NO2 vertical column density (in molec/cm2) for high quality observations with effective cloud fractions less than 0.3 and solar zenith angles less than 85 degrees. molec/cm2 float32 -1.2676506002282E+30 -999999986991104 to 999999984306749400 N/A
crs The coordinate reference system (crs) for the observations in the grid file. N/A int32 N/A N/A N/A
Latitude The terrestrial latitude (in degrees) at the center of the grid cell. degrees_north float32 N/A -90 to 90 N/A
LatitudeBounds The terrestrial latitude bounds (in degrees) for each grid cell. N/A float32 N/A -90 to 90 N/A
Longitude The terrestrial longitude (in degrees) at the center of the grid cell. degrees_east float32 N/A -180 to 180 N/A
LongitudeBounds The terrestrial longitude bounds (in degrees) for each grid cell. N/A float32 N/A -180 to 180 N/A
Time The time (in continuous days since 1972-01-01 00:00:00 UTC) for the observations in the grid file. days since 1972-01-01 00:00:00 UTC float32 N/A 11884 to 19418 N/A
TimeBounds The time bounds (in continuous days since 1972-01-01 00:00:00 UTC) for the observations in the grid file. N/A float32 N/A 11884 to 19418 N/A
Weight The recommended weight to be used when comparing the NO2 column amounts for two or more grid cells. 1 float32 -1.2676506002282E+30 0 to 10 N/A
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