Total ozone column derived from GOME and SCIAMACHY using KNMI retrieval algorithms: Validation against Brewer measurements at the Iberian Peninsula

[1] This article focuses on the validation of the total ozone column (TOC) data set acquired by the Global Ozone Monitoring Experiment (GOME) and the Scanning Imaging Absorption Spectrometer for Atmospheric Chartography (SCIAMACHY) satellite remote sensing instruments using the Total Ozone Retrieval Scheme for the GOME Instrument Based on the Ozone Monitoring Instrument (TOGOMI) and Total Ozone Retrieval Scheme for the SCIAMACHY Instrument Based on the Ozone Monitoring Instrument (TOSOMI) retrieval algorithms developed by the Royal Netherlands Meteorological Institute. In this analysis, spatially colocated, daily averaged ground-based observations performed by five well-calibrated Brewer spectrophotometers at the Iberian Peninsula are used. The period of study runs from January 2004 to December 2009. The agreement between satellite and ground-based TOC data is excellent (R2 higher than 0.94). Nevertheless, the TOC data derived from both satellite instruments underestimate the ground-based data. On average, this underestimation is 1.1% for GOME and 1.3% for SCIAMACHY. The SCIAMACHY-Brewer TOC differences show a significant solar zenith angle (SZA) dependence which causes a systematic seasonal dependence. By contrast, GOME-Brewer TOC differences show no significant SZA dependence and hence no seasonality although processed with exactly the same algorithm. The satellite-Brewer TOC differences for the two satellite instruments show a clear and similar dependence on the viewing zenith angle under cloudy conditions. In addition, both the GOME-Brewer and SCIAMACHY-Brewer TOC differences reveal a very similar behavior with respect to the satellite cloud properties, being cloud fraction and cloud top pressure, which originate from the same cloud algorithm (Fast Retrieval Scheme for Clouds from the Oxygen A-Band (FRESCO+)) in both the TOSOMI and TOGOMI retrieval algorithms.

[1]  M. V. Roozendael,et al.  FRESCO+: an improved O 2 A-band cloud retrieval algorithm for tropospheric trace gas retrievals , 2008 .

[2]  James F. Gleason,et al.  Comparison of total ozone from the satellite instruments GOME and TOMS with measurements from the Dobson network 1996-2000 , 2002 .

[3]  A. Fusco,et al.  Interannual variations of total ozone and their relationship to variations of planetary wave activity , 1999 .

[4]  Stanley C. Solomon,et al.  Stratospheric ozone depletion: A review of concepts and history , 1999 .

[5]  Pieter Valks,et al.  Ten years of GOME/ERS2 total ozone data—The new GOME data processor (GDP) version 4: 2. Ground-based validation and comparisons with TOMS V7/V8 , 2007 .

[6]  R. Stolarski,et al.  Nimbus 7 satellite measurements of the springtime Antarctic ozone  decrease , 1986, Nature.

[7]  J. Pyle,et al.  The dynamically driven long‐term trend in stratospheric ozone over northern middle latitudes , 2002 .

[8]  R. Stolarski,et al.  Measured Trends in Stratospheric Ozone , 1992, Science.

[9]  Pieternel F. Levelt,et al.  Total ozone from the ozone monitoring instrument (OMI) using the DOAS technique , 2006, IEEE Transactions on Geoscience and Remote Sensing.

[10]  M. Buchwitz,et al.  SCIAMACHY: Mission Objectives and Measurement Modes , 1999 .

[11]  J. McCormack,et al.  An investigation of dynamical contributions to midlatitude ozone trends in winter , 1997 .

[12]  Heikki Saari,et al.  The ozone monitoring instrument , 2006, IEEE Transactions on Geoscience and Remote Sensing.

[13]  Henk Eskes,et al.  Retrieval and validation of ozone columns derived from measurements of SCIAMACHY on Envisat , 2005 .

[14]  Dimitris Balis,et al.  Global validation of empirically corrected EP‐Total Ozone Mapping Spectrometer (TOMS) total ozone columns using Brewer and Dobson ground‐based measurements , 2010 .

[15]  Stanley C. Solomon,et al.  On the interpretation of zenith sky absorption measurements , 1987 .

[16]  Walter Zimmer,et al.  The GOME-2 total column ozone product: Retrieval algorithm and ground-based validation , 2011 .

[17]  A statistical trend analysis of revised Dobson total ozone data over the northern hemisphere , 1990 .

[18]  J. Staehelin,et al.  Ozone trends: A review , 2001 .

[19]  J. Farman,et al.  Large losses of total ozone in Antarctica reveal seasonal ClOx/NOx interaction , 1985, Nature.

[20]  Ulrich Platt,et al.  Improved air mass factor concepts for scattered radiation differential optical absorption spectroscopy of atmospheric species , 2000 .

[21]  Dimitris Balis,et al.  Validation of Ozone Monitoring Instrument total ozone column measurements using Brewer and Dobson spectrophotometer ground‐based observations , 2007 .

[22]  Michael Buchwitz,et al.  Total ozone retrieval from GOME UV spectral data using the weighting function DOAS approach , 2004 .

[23]  Pieter Valks,et al.  Comparison of GOME total ozone data with ground data from the Spanish Brewer spectroradiometers , 2008 .

[24]  Piet Stammes,et al.  Alternative polarisation retrieval for SCIAMACHY in the ultraviolet , 2005 .

[25]  Robert J. D. Spurr,et al.  Six years of total ozone column measurements from SCIAMACHY nadir observations , 2008 .

[26]  Johannes Staehelin,et al.  North Atlantic Oscillation modulates total ozone winter trends , 2000 .

[27]  T. L. Schneider,et al.  Climate forcing due to tropospheric and stratospheric ozone , 1999 .

[28]  R. B. A. Koelemeijer,et al.  Effects of clouds on ozone column retrieval from GOME UV measurements , 1999 .

[29]  Antonio Serrano,et al.  The Empirically Corrected EP-TOMS Total Ozone Data Against Brewer Measurements at El Arenosillo (Southwestern Spain) , 2010, IEEE Transactions on Geoscience and Remote Sensing.

[30]  Glen Jaross,et al.  Earth probe total ozone mapping spectrometer (TOMS): data products user's guide , 1998 .

[31]  A. Cede,et al.  Brewer algorithm sensitivity analysis , 2006 .

[32]  M. Molina,et al.  Stratospheric sink for chlorofluoromethanes: chlorine atomc-atalysed destruction of ozone , 1974, Nature.

[33]  James B. Kerr,et al.  Trends in stratospheric and free tropospheric ozone , 1997 .

[34]  Global satellite validation of SCIAMACHY O 3 columns with GOME WFDOAS , 2005 .

[35]  Walter Zimmer,et al.  Comparison of GOME-2/MetOp total ozone data with Brewer spectroradiometer data over the Iberian Peninsula , 2009 .

[36]  Pieter Valks,et al.  Ten years of GOME/ERS-2 total ozone data—The new GOME data processor (GDP) version 4: 1. Algorithm description , 2006 .

[37]  James B. Kerr,et al.  New methodology for deriving total ozone and other atmospheric variables from Brewer spectrophotometer direct sun spectra , 2002 .

[38]  Michael Buchwitz,et al.  The Global Ozone Monitoring Experiment (Gome) : Mission, instrument concept, and first scientific results , 1997 .

[39]  Wolfgang Steinbrecht,et al.  Correlations between tropopause height and total ozone: Implications for long‐term changes , 1998 .

[40]  Diego Loyola,et al.  Influence of cloud properties on satellite total ozone observations , 2011 .

[41]  R. Mcpeters,et al.  Validation of OMI‐TOMS and OMI‐DOAS total ozone column using five Brewer spectroradiometers at the Iberian peninsula , 2009 .

[42]  Walter Zimmer,et al.  Validation of the MetOp-A total ozone data from GOME-2 and IASI using reference ground-based measurements at the Iberian Peninsula , 2011 .

[43]  Stefan Noel,et al.  SCIAMACHY solar irradiance observation in the spectral range from 240 to 2380 nm , 2005 .

[44]  Dominik Brunner,et al.  MERIS albedo climatology for FRESCO+ O2 A-band cloud retrieval , 2010 .

[45]  Martyn P. Chipperfield,et al.  Arctic ozone loss and climate change , 2004 .

[46]  J. Hovenier,et al.  The adding method for multiple scattering calculations of polarized light , 1987 .

[47]  D. Wardle,et al.  The Brewer reference triad , 2005 .

[48]  James B. Kerr,et al.  Comparison of Brewer ultraviolet irradiance measurements with total ozone mapping spectrometer satellite retrievals , 2002 .

[49]  R. Boughner,et al.  On the origin of midlatitude ozone changes: Data analysis , 1997 .

[50]  U. Platt.  Modern methods of the measurement of atmospheric trace gases , 1999 .

[51]  Klaus Pfeilsticker,et al.  The UV-A and visible solar irradiance spectrum: inter-comparison of absolutely calibrated, spectrally medium resolution solar irradiance spectra from balloon- and satellite-borne measurements , 2004 .