Validation of OMI Data Products

A contribution to ACCENT-TROPOSAT-2, Task Group 3

Mark Kroon

Royal Netherlands Meteorological Institute (KNMI), Atmospheric Composition Research Division
PO Box 201, 3730 AE De Bilt, The Netherlands
Tel: +31-(0)30-2206 534,
Fax: +31-(0)30-2210 407

The Ozone Monitoring Instrument (OMI) is a Dutch-Finnish contribution to NASA's EOS-Aura satellite now scheduled for launch in June 2004. OMI is a new instrument, with a heritage from the European satellite instruments GOME, GOMOS and SCIAMACHY. The unique capabilities of OMI for measuring important atmospheric trace gases with a small footprint of 13 24 km2 and daily global coverage, in conjunction with the other Aura instruments, will make a major contribution to our understanding of stratospheric and tropospheric chemistry and climate change. OMI will provide data continuity with the TOMS instruments and will be essential to continue the 25-year ozone record of TOMS.

The following data products are foreseen for the OMI-instrument: (1) total columns of the trace gases ozone, NO2, BrO, OClO, HCHO and SO2; (2) ozone profile; tropospheric ozone and tropospheric NO2 column data; (3) the spectral aerosol optical depth, including information on aerosol concentration, aerosol size distribution and aerosol type; (4) cloud coverage and cloud height.

The following contributions of OMI validation to ACCENT-TROPOSAT-2 are foreseen:

1. The validation of OMI data products will greatly benefit from the upcoming "Announcement of Opportunity for Calibration and Validation of OMI Data products" that will be jointly issued this summer (2004) by ESA, NIVR and KNMI, and supported by NASA. The primary objectives of this announcement are (i) a comprehensive validation of OMI data and (ii) cross calibration and validation of OMI data with ESA data. The secondary objective is to perform early scientific investigations based on early-validated OMI data products. By presenting the OMI-AO to the AT-2 community we intend to bring OMI under the attention of the European atmospheric community and we encourage interested researchers to join us in validating OMI data products.

2. We also intend to initiate new ventures with the participants in the AT-2 network that will supplement OMI validation and early scientific investigations based on early-validated OMI data products. For example, OMI data products validation will greatly benefit from ground based and airborne measurements performed with the MAX-DOAS instruments as developed by the Universities of Heidelberg and Bremen. Ground based DOAS measurements provides day-time recording of correlative total columns of OMI products, whereas airborne DOAS measurements provides correlative tropospheric and stratospheric columns of OMI data products.

3. During the AT-2 meetings and workshops we intend to present the results of KNMI validation activities of the following OMI products; columns of ozone and NO2, aerosols and clouds, and ozone profiles. We will also present updates on the validation results obtained for all other OMI products (i) within the OMI science team and (ii) within the OMI validation AO.

Time Schedule

 

2004

2005

2006

2007

2008

2009

OMI-AO

*

*

*

*

*

*

Validation Campaigns

*

*

*

*

*

*

Approximate manpower and cost*

 

2004

2005

2006

2007

2008

2009

Personnel / man-years

1

2

2

2

2

2

Yearly cost (kECU)

5

10

10

10

10

10

*Reported costs are travel expenses only

Likely funding agencies

Netherlands Agency for Aerospace Programs (NIVR)

Co-workers

Dr. Ellen Brinksma                   
Tel: +31-(0)30-2206 749

Dr. Johan de Haan                   
Tel: +31-(0)30-2206 735

Dr. Pieternel Levelt                  
Tel: +31-(0)30-2206 677

Address: Royal Netherlands Meteorological Institute (KNMI)
Atmospheric Composition Research Division
PO Box 201, 3730 AE De Bilt, The Netherlands
Fax: +31-(0)30-2210 407

 

 


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