Abstract:
This data product contains TOMS/Nimbus-7 Total Column Ozone Daily and Monthly Zonal Means Version 8 data in ASCII format.
The Total Ozone Mapping Spectrometer (TOMS) Version 8 Daily and Monthly Gridded Data consist of daily and monthly, global coverage of total column ozone, aerosol index, Lambertian effective reflectivity(Rayleigh corrected) and surface UV-B Erythemal irradiances.
Four ... TOMS instruments have been successfully flown on the following satellites: Nimbus-7 (Nov. 1978 - May 1993), Meteor-3 (Aug. 1991 - Dec. 1994), Earth Probe (July 1996 - current), and ADEOS (Sep. 1996 - June 1997).
Earth Probe, Meteor-3 and Nimbus-7 data are currently reprocessed using the Version-8 algorithm ( http://ozoneaq.gsfc.nasa.gov/documents.md ) . These Version-8 data are archived at NASA Goddard Earth Sciences Data and Information Services Center (GES DISC).
The total ozone, aerosol index, reflectivity data and UV-B Erythemal irradiances are mapped to a global grid of size 180 x 288 with a Lat/Lon resolution of 1.00 x 1.25 degrees. These data are also stored in the EOS Version of Hierarchical Data Format (HDF-EOS). HDF was developed by the National Center for Supercomputer Applications (NCSA) at the University of Illinois at Urbana-Champaign.
The GES DISC maintains an online Web-based system (Giovanni) for previewing the data, subsetting in ASCII format, and downloading the data and images. The URL for Giovanni is http://giovanni.gsfc.nasa.gov/.
The Level-2 data at instrument resolution(approx 50km x 50km pixel at nadir, in HDF5 EOS format) are also available from the GES DISC.
For more information regarding TOMS or other DAAC data sets please visit the GES DISC Home Page at http://disc.sci.gsfc.nasa.gov/acdisc/ , or contact the DISC Help Desk at:
GES DISC Help Desk NASA Goddard Space Flight Center Code 610.2 Greenbelt, MD 20771
gsfc-help-disc@lists.nasa.gov
TOMS data are produced by the Laboratory for Atmospheres at NASA Goddard Space Flight Center (Code 613). The Version-8 Algorithm Theoretical Basis Document (ATBD) is available from the TOMS site http://ozoneaq.gsfc.nasa.gov/documents.md
For detailed information about the TOMS instrument, data, and ozone see the TOMS official Home Page at: http://ozoneaq.gsfc.nasa.gov/.
Latitude Resolution:
1.0 Degrees
Longitude Resolution:
1.25 Degrees
Horizontal Resolution Range:
100 km - < 250 km or approximately 1 degree - < 2.5 degrees
Temporal Resolution:
DAILY AND Monthly
Bowman, K.P., and A.J. Krueger, August 20, 1985. 'A Global Climatology of Total Ozone from the Nimbus-7 Total Ozone Mapping Spectrophotometer,' J. Geophys. Res. 90:7967-7976.
Eck, T. F., Bhartia, P. K., Kerr, J. B., Satellite estimation of spectral UVB irradiance using TOMS derived total ozone and UV reflectivity, Geophys. Research Letters 1995, 22, 611-614
Fleig, A.J., D.S. Silberstein, C.G. ... Wellemeyer, R.P. Cebula, and P.K. Bhartia, 1988. 'An Assessment of the Long-Term Drift in TOMS Total Ozone data, Based on Comparison with the Dobson Network,' Geophys. Res. Letters, 15:1133-1136.
Frederick, J.E. and G.N. Serafino, September 1985. 'The Detection of Long-Term Changes in Stratospheric Ozone Scientific Requirements and Current Results from Satellite-based Measurement Systems,' J. of Clim. and Appl. Meteor. 24:904-914.
Gleason, J.F., P.K. Bhartia, J.R.Herman, R.McPeters, P.Newman, R.S.Stolarski, L.Flynn, G.Labow, D.Larko, C.Seftor, C.Wellemeyer, W.D.Komhyr, A.J.Miller, and W.Planet, April 1993. 'Record Low Global Ozone in 1992', Science, 260: 523-526 (23 April 1993)
Herman, J.R., et al., "Meteor-3 Total Ozone Mapping Spectrometer (TOMS) Data Products User's Guide." NASA reference publication 1393, 1996.
Herman,J.R., R.McPeters, R.Stolarski, D.Larko, and R.Hudson, September 1991. 'Global Average Ozone Change from November 1978 to May 1990', J. Geophys. Res., 96, D9:17,297-17,305.
Krueger, A., M. Schoeberl, P.Newman, and R.Stolarski, June 1992. ' The 1991 Antarctic Ozone Hole; TOMS Observations', Geophys. Res. Letters, 19: 1215-1218
McPeters, R.D., et al., "Earth-Probe Total Ozone Mapping Spectrometer (TOMS) Data Products User's Guide." NASA Reference Publication 206895, April 1998.
Schoeberl, M.R., A.J. Krueger, and P.A. Newman, 1986. 'The Morphology of Antarctic Total Ozone As Seen by TOMS,' Geophys. Res. Letters, 13:1217-1220.
Stolarski, R.S., A.J. Krueger, M.R. Schoeberl, R.D. McPeters, P.A. Newman, and J.C. Alpert, 1986. 'Nimbus-7 Satellite Measurements of the Springtime Antarctic Ozone Decrease,' Nature 322:808-811.
Stolarski, R.S., P. Bloomfield, R.D.McPeters, J.R.Herman, June 1991. 'Total Ozone Trands Deduced from Nimbus-7 TOMS Data', Geophys. Res. Letters, 18: 1015-1018.
