Global Change Master Directory (GCMD)

Data Sets

Services / Tools

Ancillary Descriptions

Are you using a browser that doesn't support JavaScript or have you disabled JavaScript?

If you have disabled JavaScript, you must re-enable JavaScript to use this page.
Or you can view this record using the Text Only Format.

OMI/Aura Near UV Aerosol Optical Depth and Single Scattering Albedo Daily L2 Global 0.25x0.25 deg Lat/Lon Grid V003 (OMAERUVG) at GES DISC

Entry ID: GES_DISC_OMAERUVG_V003

[ Get Data ]
[ Update this Record ]

Summary

Abstract: The OMI-Aura level-2G daily global gridded (0.25x0.25 deg) near-UV Aerosol data product OMAERUVG based on the enhanced algorithm is available from the NASA Goddard Earth Sciences Data and Information Services Center (GES DISC), http://disc.gsfc.nasa.gov/Aura/OMI/omaeruvg_v003.shtml

The NASA Aura satellite sensors are tracking important atmospheric pollutants from space since its ... launch in July, 2004. The Ozone Monitoring Instrument(OMI), one of the four Aura satellite sensors with its 2600 km viewing swath width provides daily global measurements of four important US Environmental Protection Agency criteria pollutants (Tropospheric ozone, Nitrogen dioxide,Sulfur dioxide and Aerosols from biomass burning and industrial emissions, HCHO, BrO, OClO and surface UV irradiance.

OMI is a contribution of the Netherlands Agency for Aerospace Programs (NIVR)in collaboration with Finish Meterological Institute (FMI), to the US EOS-Aura Mission. The principal investigator's (Dr. Pieternel Levelt) institute is the KNMI (Royal Netherlands Meteorological Institute).

This Level-2G daily global gridded product OMAERUVG is based on the pixel level OMI Level-2 Aerosol product OMAERUV. The OMAERUV product is based on the enhanced TOMS version-8 algorithm that essentially uses the ultraviolet radiance data. OMI provides two aerosol products OMAERUV and OMAERO at the pixel resolution (13 x 24 km at nadir) that are based on two different algorithms.

OMAERUVG data product is a special Level-2 gridded product where pixel level products are binned into 0.25x0.25 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 OMAERUVG data product contains almost all parameters that are contained in OMAERUV. For example, in addition to the extinction and absorption optical depth it also contains effective Lambertian scene-reflectivity, UV aerosol index, cloud fraction, cloud pressure, ozone below clouds, terrain height, geolocation, solar and satellite viewing angles, and extensive quality flags.

OMAERUVG files are stored in EOS Hierarchical Data Format (HDF-EOS5). Each file contains daily data from approximately 15 orbits mapped on the Global 0.25x0.25 deg Grids. The maximum file size for the OMERUVG data product is about 50 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

Related URL

Link: GET DATA > MIRADOR

Description: Direct access to the OMI Aerosol data from the GES-DIS fast search and download system 'Mirador'.

Geographic Coverage

(Click for Interactive Map)

Spatial coordinates

N: 90.0

S: -90.0

E: 180.0

W: -180.0

Data Set Citation

Dataset Originator/Creator: OMI SIPS

Dataset Title: OMI/Aura Near UV Aerosol Optical Depth and Single Scattering Albedo Daily L2 Global 0.25x0.25 deg Lat/Lon Grid

Dataset Series Name: OMAERUVG

Dataset Release Date: April 2012

Dataset Release Place: NASA Goddard Space Flight Center

Version: 003

Online Resource: http://disc.gsfc.nasa.gov/Aura/OMI/omaeruvg_v003.shtml

Temporal Coverage

Start Date: 2004-10-01

Location Keywords

GEOGRAPHIC REGION > GLOBAL

Data Resolution

Latitude Resolution: 0.25 degree
Longitude Resolution: 0.25 degree
Horizontal Resolution Range: 10 km - < 50 km or approximately .09 degree - < .5 degree
Vertical Resolution: Approx 80 km (atmospheric column)
Temporal Resolution: 1 day (day time orbit)
Temporal Resolution Range: Daily - < Weekly

Science Keywords

ATMOSPHERE > AEROSOLS > AEROSOL EXTINCTION > AEROSOL EXTINCTION OR TOTAL OPTICAL DEPTH

ATMOSPHERE > AEROSOLS > AEROSOL OPTICAL DEPTH/THICKNESS > NEAR UV AEROSOL OPTICAL DEPTH/THICKNESS

ISO Topic Category

ENVIRONMENT

HEALTH

Platform

AURA > Aura

Instrument

OMI > Ozone Monitoring Instrument

Project

EOSDIS > Earth Observing System Data Information System

ESIP > Earth Science Information Partners Program

AURA > Earth Observing System (EOS), AURA

CWIC > CEOS WGISS Integrated Catalog

Quality This is the new public release (fall 2011) of OMAERUVG aerosol product in collection 003. Major updates have been made in the retrieval algorithms. For details, please see the README document available from the data product site:
http://disc.sci.gsfc.nasa.gov/Aura/OMI/omaeruvg_v003.shtml

Use Constraints This Data set (third public release in collection 3) is better than the earlier released products but it is not fully validated yet. Before using it in any trend analysis please contact algorithm team lead for the current known problems and updates http://disc.sci.gsfc.nasa.gov/Aura/OMI/omaeruvg_v003.shtml

Ancillary Keywords

Aerosol Absorption Optical Depth

Aerosol Extinction Optical Depth

Originating Center

OMI Science Team

Data Center

Goddard Earth Sciences Data and Information Services Center (formerly Goddard DAAC), Global Change Data Center, Earth Sciences Division, Science and Exploration Directorate, Goddard Space Flight Center, NASA

Data Center URL: http://disc.gsfc.nasa.gov/
Dataset ID: OMAERUVG

Data Center Personnel
Name: GES DISC HELP DESK SUPPORT GROUP Phone: 301-614-5224 Fax: 301-614-5268 Email: gsfc-help-disc at lists.nasa.gov Contact Address: Goddard Earth Sciences Data and Information Services Center Code 610.2 NASA Goddard Space Flight Center City: Greenbelt Province or State: MD Postal Code: 20771 Country: USA

Distribution

Distribution Media: FTP

Distribution Size: Approx 35 MB per file

Distribution Format: HDF-EOS5

Fees: None

Personnel

OMAR O. TORRES, PH. D

Role: INVESTIGATOR

Phone: 301-614-6776

Email: omar.o.torres at nasa.gov

Contact Address:

NASA Goddard Space Flight Center

Code 614

City: Greenbelt

Province or State: MD

Postal Code: 20771

Country: USA

SURAIYA P. AHMAD, PH. D

Role: TECHNICAL CONTACT

Role: DIF AUTHOR

Phone: 301-614-5284

Email: Suraiya.Ahmad at nasa.gov

Contact Address:

NASA Goddard Space Flight Center

Code 610.2

City: Greenbelt

Province or State: MD

Postal Code: 20771

Country: USA

Publications/References

Ahmad, S. P., P. F. Levelt, P. K. Bhartia, E. Hilsenrath,
G. W. Leppelmeier,and J. E. Johnson, "Atmospheric Products from
the Ozone Monitoring Instrument(OMI)", Proceedings of SPIE
conference on Earth Observing Systems VIII, San Diego,
California, Aug 3-8, ...

Extended Metadata Properties

(Click to view more)

Creation and Review Dates

DIF Creation Date: 2007-11-19

Last DIF Revision Date: 2013-04-08

Reformat as FGDC document

View Text Only Format

[ Update this Record ]