OMI/Aura Ozone (O3) Total Column Daily L2 Global 0.25 deg Lat/Lon Grid

Federal Geographic Data Committee (FGDC) Metadata:

• Identification_Information
• Data_Quality_Information
• Spatial_Reference_Information
• Distribution_Information
• Metadata_Reference_Information

Identification_Information:

Citation:

Citation_Information:

Originator: OMI Science Team

Publication_Date: April 2012

Title: OMI/Aura Ozone (O3) Total Column Daily L2 Global 0.25 deg Lat/Lon Grid

Edition: 003

Geospatial_Data_Presentation_Form: Digital Science Data

Series_Information:

Series_Name: OMI/Aura

Issue_Identification:

Publication_Information:

Publication_Place:

Publisher:

Other_Citation_Details:

Online_Linkage: http://disc.gsfc.nasa.gov/Aura/OMI/omto3g_v003.shtml

Description:

Abstract:

The OMI/Aura Level-2G Total Column Ozone Data Product OMTO3G (Version 003) is made available ( http://disc.gsfc.nasa.gov/Aura/OMI/omto3g_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 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). 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 are also available from the NASA GES DISC. OMI provides two total column ozone products OMTO3 and OMDOAO3 at the pixel resolution (13 x 24 km at nadir) that are based on two different algorithms. This Level-2G daily global gridded total column ozone product OMTO3G is based on the pixel level OMI Level-2 Total Ozone Product OMTO3. The OMTO3 product is based on enhanced TOMS version-8 algorithm that essentially uses the ultraviolet radiance data at 317.5 and 331.2 nm. OMTO3G data product is a special Level-2 Global Gridded Product where pixel level data are binned into 0.25x0.25 degree global grids. It contains the data for all L2 scenes that have observation time between 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 toolGiovanni(http://giovanni.gsfc.nasa.gov/) provides web based capabilities to browse and explore these data. OMTO3G product files are stored in Hierarchical Data Format (HDF-EOS5). Each daily data file contains data from the day lit portion of the orbits (~14 orbits) and is roughly 150 MB in size. A list of tools for browsing and extracting data from these files can be found from the site http://disc.sci.gsfc.nasa.gov/Aura/tools.shtml. The OMTO3G data product contains almost all parameters that are contained in the OMTO3. For example, in addition to the total column ozone it also contains UV aerosol index, cloud fraction, cloud pressure, terrain height, geolocation, solar and satellite viewing angles, and extensive quality flags. For the full set of Aura data products available from the GES DISC, please see the link below. http://disc.sci.gsfc.nasa.gov/Aura/ Atmospheric Composition data from Aura and other satellite sensors can be ordered from the following sites: http://mirador.gsfc.nasa.gov/ http://disc.sci.gsfc.nasa.gov/acdisc/

Purpose:

Not Available

Supplemental_Information:

REFERENCE: 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, 2003. http://disc.sci.gsfc.nasa.gov/acdisc/ozone/docs/omi-spie-2003.doc Bhartia, P. K. and C. W. Wellemeyer, OMI TOMS-V8 Total O3 Algorithm, Algorithm , Algorithm Theoretical Baseline Document: OMI Ozone Products, P. K. Bhartia (ed.), vol. II, ATBD-OMI-02, version 2.0, Aug. 2002. http://eospso.gsfc.nasa.gov/sites/default/files/atbd/ATBD-OMI-02.pdf Brinksma, E. J., K. F. Boersma, and P. F. Levelt, OMI-Validation Requirements, May 16, 2003. Froidevaux, L. and A. Douglass, Earth Observing System (EOS) Aura Science Data Validation Plan, July 2001 Levelt, P.F., J. P. Veefkind, R. H. M. Voors, and J. de Vries, Instrument Description, Algorithm Theoretical Baseline Document: OMI Instrument, Level 0 - 1B processor, Calibration Operations, P. F. Levelt (ed.), vol. I, ATBD-OMI-01, version 2, Aug. 2002. http://eospso.gsfc.nasa.gov/sites/default/files/atbd/ATBD-OMI-01.pdf Levelt, P. F., B. van den Oord, E. Hilsenrath, G. W. Leppelmeier, P. K. Bhartia, A. Malkki, H. Kelder, R. J. van der A, E. J. Brinksma, R. van Oss, P. Veefkind, M. van Weele, and R. Noordhoek, Science Objectives of EOS-Aura's Ozone Monitoring Instrument (OMI), Proc. Quad. Ozone Symposium, Sapporo, Japan, pp. 127-128, 2000. Schoeberl, M.R., A.R. Douglass, E. Hilsenrath, P.K. Bhartia, J. Barnett, J. Gille, R. Beer, M. Gunson, J. Waters, P.F. Levelt, P. DeCola, The EOS Aura Mission, EOS, Transactions, American Geophysical Union 85 , Number 18, 4 May 2004. http://aura.gsfc.nasa.gov/project/eos-agu-aura-article.pdf

Time_Period_of_Content:

Time_Period_Information:

Range_of_Dates/Times:

Beginning_Date: 20041001

Ending_Date: Unknown

Currentness_Reference:Unknown

Status:

Progress: Complete

Maintenance_and_Update_Frequency: As needed

Spatial_Domain:

Description_of_Geographic_Extent:

Bounding_Coordinates:

West_Bounding_Coordinate: -180.0

East_Bounding_Coordinate: 180.0

North_Bounding_Coordinate: 90.0

South_Bounding_Coordinate: -90.0

Keywords:

Theme:

Theme_Keyword_Thesaurus: GCMD SCIENCE PARAMETERS

Theme_Keyword_Thesaurus: GCMD PLATFORM

Theme_Keyword_Thesaurus: GCMD INSTRUMENT

Theme_Keyword_Thesaurus: PROJECT

Theme_Keyword_Thesaurus: ANCILLARY KEYWORDS

Theme_Keyword_Thesaurus: ISO TOPIC CATEGORY

Theme_Keyword_Thesaurus: DATA SET LANGUAGE

Theme_Keyword: EARTH SCIENCE > ATMOSPHERE > AEROSOLS > DUST/ASH/SMOKE > UV AEROSOL INDEX

Theme_Keyword: EARTH SCIENCE > ATMOSPHERE > CLOUDS > CLOUD PROPERTIES > CLOUD FREQUENCY > RADIATIVE CLOUD FRACTION

Theme_Keyword: EARTH SCIENCE > ATMOSPHERE > CLOUDS > CLOUD PROPERTIES > CLOUD TOP PRESSURE > RADIATIVE CLOUD PRESSURE

Theme_Keyword: EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC RADIATION > ULTRAVIOLET RADIATION > REFLECTANCE

Theme_Keyword: EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC CHEMISTRY > OXYGEN COMPOUNDS > OZONE > TOTAL COLUMN OZONE

Theme_Keyword: AURA > AURA

Theme_Keyword: OMI > OZONE MONITORING INSTRUMENT

Theme_Keyword: EOSDIS > EARTH OBSERVING SYSTEM DATA INFORMATION SYSTEM

Theme_Keyword: ESIP > EARTH SCIENCE INFORMATION PARTNERS PROGRAM

Theme_Keyword: AURA > EARTH OBSERVING SYSTEM (EOS), AURA

Theme_Keyword: CWIC > CEOS WGISS INTEGRATED CATALOG

Theme_Keyword: Aura/omi Total Column Ozone

Theme_Keyword: Aura/omi Aerosol Index

Theme_Keyword: Aura/omi Global Gridded 0.25x0.25 Deg Ozone

Theme_Keyword: Uv Based Effective Surface Reflectivity

Theme_Keyword: Atmospheric Chemistry

Theme_Keyword: Ozone Hole

Theme_Keyword: Ozone Depletion

Theme_Keyword: Ozone Trend

Theme_Keyword: Air Quality

Theme_Keyword: Air Pollution

Theme_Keyword: Eosdis

Theme_Keyword: CLIMATOLOGY/METEOROLOGY/ATMOSPHERE

Theme_Keyword: ENVIRONMENT

Theme_Keyword: ENGLISH

Place:

Place_Keyword_Thesaurus: GCMD

Place_Keyword: GEOGRAPHIC REGION > GLOBAL

Access_Constraints: Not Available

Use_Constraints:

This Data set (version 003/second public release) is not fully validated yet. Before using it for any research please read the data quality document provided by the OMTO3 algorithm team and available from http://disc.gsfc.nasa.gov/Aura/OMI/omto3_v003.shtml

Point_of_Contact:

Contact_Information:

Contact_Person_Primary:

Contact_Person: SURAIYA P. AHMAD, PH. D

Contact_Position: TECHNICAL CONTACT

Contact_Position: DIF AUTHOR

Contact_Address:

Address_Type: Mailing and Physical Address

Address: NASA Goddard Space Flight Center

Address: Code 610.2

City: Greenbelt

State_or_Province: MD

Postal_Code: 20771

Country: USA

Contact_Voice_Telephone: 301-614-5284

Contact_Electronic_Mail_Address: Suraiya.Ahmad@nasa.gov

Data_Quality_Information:

Attribute_Accuracy:

Attribute_Accuracy_Report:

The 'version 003' product is the second public release. The quality of this v003 product is based on improved calibration algorithm however this product is not fully validated yet. Please see below the detailed Quality assessment. Overall the quality of total ozone and AI data produced by OMTO3 is similar to that from TOMS. Based on experience with TOMS, the total ozone data provided in OMTO3 should have a root-mean squared error of 1-2%, depending on solar zenith angle, aerosol amount, and cloud cover. These errors are best described as pseudo-random: systematic over small areas with a unique geophysical regime, random over large areas contain mixture of geophysical regimes. Preliminary analyses show that OMTO3 data compare well with Dobson and Brewer stations. However for the most recent information on the OMTO3 data quality the data users are advised to see the data quality document available from the OMTO3 data product site(http://disc.gsfc.nasa.gov/Aura/OMI/omto3_v003.shtml).

Logical_Consistency_Report:

Not Available

Completeness_Report:

Not Available

Lineage:

Process_Step:

Process_Description:

Not Available

Process_Date: Unknown

Spatial_Reference_Information:

Horizontal_Coordinate_System_Definition:

Geographic:

Latitude_Resolution: 0.25 degrees

Longitude_Resolution: 0.25 degrees

Geographic_Coordinate_Units: Decimal degrees

Distribution_Information:

Distributor:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization: NASA/GSFC/SED/ESD/GCDC/GESDISC > 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

Contact_Person: GES DISC HELP DESK SUPPORT GROUP

Contact_Position: DATA CENTER CONTACT

Contact_Address:

Address_Type: Mailing and Physical Address

Address: Goddard Earth Sciences Data and Information Services Center

Address: Code 610.2

Address: NASA Goddard Space Flight Center

City: Greenbelt

State_or_Province: MD

Postal_Code: 20771

Country: USA

Contact_Voice_Telephone: 301-614-5224

Contact_Facsimile_Telephone: 301-614-5268

Contact_Electronic_Mail_Address: gsfc-help-disc@lists.nasa.gov

Distributor:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization: NASA/GSFC/SED/ESD/GCDC/GESDISC/ACDISC > Atmospheric Composition Data Center, Goddard Earth Sciences Data and Information Services Center, Global Change Data Center, Earth Sciences Division, Science and Exploration Directorate, Goddard Space Flight Center, NASA

Contact_Person: ACDISC USER SUPPORT OFFICE

Contact_Position: DATA CENTER CONTACT

Contact_Address:

Address_Type: Mailing and Physical Address

Address: Goddard Earth Sciences Data and Information Services Center

Address: Code 610.2

Address: NASA Goddard Space Flight Center

City: Greenbelt

State_or_Province: MD

Postal_Code: 20771

Country: USA

Contact_Voice_Telephone: 301-614-5224

Contact_Facsimile_Telephone: 301-614-5268

Contact_Electronic_Mail_Address: gsfc-help-disc@lists.nasa.gov

Resource_Description: OMTO3G

Distribution_Liability:

Not Available

Standard_Order_Process:

Digital_Form:

Digital_Transfer_Information:

Format_Name: HDF-EOS5

Transfer_Size: Approx 160 MB per file

Digital_Transfer_Option:

Online_Option:

Computer_Contact_Information:

Network_Address:

Network_Resource_Name:

http://disc.gsfc.nasa.gov/

Access_Instructions:

DATA CENTER URL

Online_Option:

Computer_Contact_Information:

Network_Address:

Network_Resource_Name:

http://disc.sci.gsfc.nasa.gov/acdisc/

Access_Instructions:

DATA CENTER URL

Digital_Transfer_Option:

Online_Option:

Computer_Contact_Information:

Network_Address:

Network_Resource_Name:

http://mirador.gsfc.nasa.gov/cgi-bin/mirador/colle...

Access_Instructions:

Access OMI Level 2 Global Total Column Ozone data OMTO3G from MIRADOR.

Digital_Transfer_Option:

Online_Option:

Computer_Contact_Information:

Network_Address:

Network_Resource_Name:

http://reverb.echo.nasa.gov/reverb/#utf8=%E2%9C%93...

Access_Instructions:

Refine your granule search with ECHO's next generation Earth Science discovery tool (Reverb) using information from this record.

Digital_Transfer_Option:

Online_Option:

Computer_Contact_Information:

Network_Address:

Network_Resource_Name:

http://disc.gsfc.nasa.gov/Aura/tools.shtmlhttp://g...

Access_Instructions:

Digital_Transfer_Option:

Online_Option:

Computer_Contact_Information:

Network_Address:

Network_Resource_Name:

http://www.knmi.nl/omi/research/news/index.htmlhtt...

Access_Instructions:

KNMI OMI Home Page and US Ozone & Air Quality Page.

Digital_Transfer_Option:

Online_Option:

Computer_Contact_Information:

Network_Address:

Network_Resource_Name:

http://disc.gsfc.nasa.gov/Aura/OMI/omto3g_v003.sht...

Access_Instructions:

OMTO3 and OMTO3G Data Set Home Page

Digital_Transfer_Option:

Online_Option:

Computer_Contact_Information:

Network_Address:

Network_Resource_Name:

ftp://acdisc.gsfc.nasa.gov/data/s4pa/Aura_OMI_Leve...

Access_Instructions:

User's Guide for OMI Data Products

Fees: None

Metadata_Reference_Information:

Metadata_Date: 20080122

Metadata_Review_Date: 20130429

Metadata_Contact:

Contact_Information:

Contact_Person_Primary:

Contact_Person: SURAIYA P. AHMAD, PH. D

Contact_Position: TECHNICAL CONTACT

Contact_Position: DIF AUTHOR

Contact_Address:

Address_Type: Mailing and Physical Address

Address: NASA Goddard Space Flight Center

Address: Code 610.2

City: Greenbelt

State_or_Province: MD

Postal_Code: 20771

Country: USA

Contact_Voice_Telephone: 301-614-5284

Contact_Electronic_Mail_Address: Suraiya.Ahmad@nasa.gov

Metadata_Standard_Name: FGDC Content Standards for Digital Geospatial Metadata

Metadata_Standard_Version: FGDC-STD-001-1998

Metadata_Time_Convention: local time