[Personnel: Last_Name='GES DISC HELP DESK SUPPORT GROUP']
OMI/Aura Sulphur Dioxide (SO2) Total Column Daily L2 Global 0.125 deg Lat/Lon Grid V003 (OMSO2G) at GES DISCEntry ID: GES_DISC_OMSO2G_V003
Abstract: The OMI/Aura Level-2G SO2 Data Product OMSO2G (Version 003) is now available http://disc.gsfc.nasa.gov/Aura/OMI/omso2g_v003.shtml ) from the NASA Goddard Earth Sciences Data and Information Services Center (GES DISC) for the public access.
The Ozone Monitoring Instrument (OMI) was launched aboard the EOS-Aura satellite on July 15, 2004 (1:38 pm equator crossing time, ascending ... mode). OMI with its 2600 km viewing swath width provides almost daily global coverage. OMI is a contribution of the Netherlands Space Office (NSO) in collaboration with Finish Meterological Institute (FMI), to the US EOS-Aura Mission. The principal investigator (Dr. Pieternel Levelt) institute is the KNMI (Royal Netherlands Meteorological Institute). OMI is designed to monitor stratospheric and tropospheric ozone, clouds, aerosols and smoke from biomass burning, SO2 from volcanic eruptions, and key tropospheric pollutants (HCHO,NO2) and ozone depleting gases (OClO and BrO). OMI sensor counts, calibrated and geolocated radiances, and all derived geophysical atmospheric products will be archived at the NASA Goddard DAAC.
The shortname for this Level-2 OMI total column SO2 product is OMSO2G and the algorithm leads for this product are NASA/UMBC OMI scientists Dr. Nikolay Krotkov (firstname.lastname@example.org) and Dr. Arlin J.Krueger (email@example.com).
This Level-2G daily global gridded product OMSO2G is based on the pixel level OMI Level-2 SO2 product OMSO2. OMSO2G data product is a special Level-2 gridded product where pixel level products are binned into 0.125x0.125 degree global grids. It contains the data for all scenes that have observation time betweeen UTC times of 00:00:00 and 23:59:59.9999 . All data pixels that fall in a grid box are saved without averaging. Scientist can apply data filtering scheme of their choice and create new gridded products. The GES DISC developed interactive tool Giovanni (http://giovanni.gsfc.nasa.gov/ ) provides web based capabilities to browse and explore these data.
The OMSO2G data product contains almost all parameters that are contained in OMSO2 files. For example, in addition to three values of SO2 Vertical column corresponding to three a-priori vertical profiles used in the retrieval algorithm, and ancillary parameters e.g UV aerosol index, cloud fraction, cloud pressure, geolocation, solar and satellite viewing angles, and extensive quality flags.
OMSO2G files are stored in EOS Hierarchical Data Format (HDF-EOS5). Each file contains daily data from approximately 15 orbits . The maximum file size for the OMTO3G data product is about 100 Mbytes.
A list of tools for browsing and extracting data from these files can be found from the site http://daac.gsfc.nasa.gov/Aura/tools.shtml
A short OMSO2G Readme Document that includes brief algorithm description and documents that provides known data quality related issues are available from the UMBC OMI site( http://so2.umbc.edu/omi/omi_docs.html )
For more information on Ozone Monitoring Instrument and atmospheric
data products, please visit the OMI-Aura sites:
For the full set of Aura products available from the GES DISC, please see the link below.
Atmospheric Composition data from Aura and other satellite sensors can be ordered from the following site:
(Click for Interactive Map)
Data Set Citation
Dataset Originator/Creator: OMI SIPS
Dataset Title: OMI/Aura Sulphur Dioxide (SO2) Total Column Daily L2 Global 0.125 deg Lat/Lon Grid
Dataset Series Name: OMSO2G
Dataset Release Date: April 2012
Dataset Release Place: NASA Goddard Space Flight Center
Data Presentation Form: Digital Science DataOnline Resource: http://disc.gsfc.nasa.gov/Aura/OMI/omso2g_v003.shtml
Start Date: 2004-10-01
Latitude Resolution: 13 km
Longitude Resolution: 24 km
Horizontal Resolution Range: 10 km - < 50 km or approximately .09 degree - < .5 degree
Vertical Resolution: Approx 80 km (atmospheric column)
Vertical Resolution Range: Vertical Resolution Ranges
Temporal Resolution: Approx 1 hour (day time orbit)
Temporal Resolution Range: Hourly - < Daily
ATMOSPHERE > AIR QUALITY > SULFUR OXIDES
ATMOSPHERE > ATMOSPHERIC CHEMISTRY > TRACE GASES/TRACE SPECIES
HUMAN DIMENSIONS > ENVIRONMENTAL IMPACTS > INDUSTRIAL EMISSIONS
SOLID EARTH > TECTONICS > VOLCANIC ACTIVITY > ERUPTION DYNAMICS > ASH/DUST COMPOSITION
ATMOSPHERE > ATMOSPHERIC CHEMISTRY > SULFUR COMPOUNDS > SULFUR DIOXIDE
ISO Topic Category
Quality ATTRIBUTE ACCURACY REPORT: Not provided
LOGICAL CONSISTENCY REPORT: Unknown
COMPLETENESS REPORT: Completeness information not available.
PROCESS DESCRIPTION: This data set was derived in part from DSI-6403,(C00385) ASOS 5-Minute Weather Duration.
PROCESS DATE: Unknown
Access Constraints ACCESS CONSTRAINTS: None
DISTRIBUTION LIABILITY: Every effort has been made to ensure that these data are accurate and reliable within the limits of current NOAA quality control procedures. NOAA can only certify that the data provided to its customers is an authentic copy of the records which were accepted for inclusion in NOAA archives. NOAA cannot assume liability for any damages caused by any errors or omissions in the data, nor as a result of the failure of the data to function on a particular system. NOAA makes no warranty, expressed or implied, nor does the fact of distribution constitute such a warranty.
Use Constraints None
Data Set Progress
Role: DIF AUTHOR
Email: ncdc.orders at noaa.gov
151 Patton Avenue, Room 120
Province or State: NC
Postal Code: 28801-5001
Creation and Review Dates
DIF Creation Date: 2006-06-27
Last DIF Revision Date: 2011-07-21