Dataset Title GOMOS: Global Atmospheric chemistry dataset from satellite measurements
Dataset Purpose The main scientific objective of the stellar occultation instrument is to monitor ozone and ozone trends in the stratosphere and mesosphere with high accuracy and high vertical resolution at global coverage. Moreover, GOMOS enables to measure atmospheric parameters related to stratospheric ozone chemistry like NO2, NO3, H2O and aerosol as well as ozone dynamics like temperature, air density and turbulence.
Dataset Abstract The Global Ozone Monitoring by Occultation of Stars (GOMOS) Instrument on board Envisat is an ESA instrument that was dedicated to the study of the of Earth’s atmosphere using the stellar occultation technique, allowing for the retrieval of species such as O3, NO2, NO3, H2O, O2, air density, aerosol extinction and OClO.
Acquisition Methodology The spectral range of the GOMOS spectrometer extends from the UV (ultra violet) to the near infrared at wavelengths 250-690 nm. The occultation technique has the advantages of being largely self-calibrating, minimizing effects due to long-term drifts in instrument performance and providing good vertical resolution. About 25 stars (magnitudes between -1 and 3) will be monitored each orbit. Contrary to sun occultations this results in a much better global coverage. Depending on the season 150 to 250 stars will be bright enough to be tracked by GOMOS. The observing strategy is limb viewing of altitudes from 15 to 120 km. The instruments line-of-sight can be oriented towards stars and maintained by tracking the star while the star sets behind the Earths limb. During the setting of the star the line-of-sight penetrates deeper and deeper into the atmsophere. The spectra are continuously observed and successively modified and attenuated according to the concentrations of atmospheric constuents. Each trace gas is characterised by a typical, well-defined spectral signature. By deviding these attenuated spectra by the unattenuated stellar spectrum (measured outside the atmosphere) high accuracy spectra are derived. Beside two spectrometers (UV-visible, infrared), GOMOS consists of two fast photometers (visible) which have the purpose to monitor input signal scintillation, which enables to derive information on turbulence. There are about 400 occultations/day before 01/2005 and about 280 occultations/day since 07/2005
Quality The accuracy of GOMOS measurements varies from one occultation to the other. The key factors are the characteristics of the occulted star (visual magnitude and effective temperature), and some specificities of the occultation geometry. See https://earth.esa.int/handbooks/gomos/toc.htm for further details
Dataset DOI
Access Constraints Ether data and software are free rights within the framework of a scientific use. A login request is somehow required (email address), which allows the Ether scientists to follow the use of the system.
Use Constraints Users are requested to quote Ether in their publications as supplier of the data.
Keywords GOMOS, global, chemical composition, satellite, atmosphere
Status Complete
Temporal Coverage
Start Date 2002-03-01
Stop Date 2014-04-08
Project 0
Project short Name ESA
Project long Name European Space Agency
URL http://www.esa.int/ESA
Description The European Space Agency (ESA) is Europe's gateway to space. Its mission is to shape the development of Europe's space capability and ensure that investment in space continues to deliver benefits to the citizens of Europe and the world.
URL Type VIEW PROJECT HOME PAGE
Contact 0
Role Investigator
Full Name Hauchecorne  Alain
Email Alain.Hauchecorne@latmos.ipsl.fr
Phone +33(0)180285024
Fax
Organism short Name LATMOS
Organism long Name Laboratoire Atmosphères, Milieux, Observations Spatiales
URL http://www.latmos.ipsl.fr/
Description LATMOS is an associated research laboratory, created on January 1st, 2009. The research objectives of LATMOS fall into two main themes: Physics and Chemistry of Earth environment and Solar system (planets, small bodies in the solar system, solar wind) and Sun-Earth interactions.
URL Type VIEW PROFESSIONAL HOME PAGE
Address (Line1)  LATMOS / UVSQ / CNRS,   11,boulevard d'Alembert B2304
Address (Line2)
City Guyancourt
Postal Code 78280
Country France
Parameter 0
Category EARTH SCIENCE/ATMOSPHERIC CHEMISTRY/HALOCARBONS AND HALOGENS
Parameter Chlorine Dioxide (OClO)
Units per cubic centimeter (1/cm3: 1e-3 m)
Parameter 1
Category EARTH SCIENCE/ATMOSPHERIC CHEMISTRY/OXYGEN COMPOUNDS
Parameter Oxygen (O2)
Units per cubic centimeter (1/cm3: 1e-3 m)
Parameter 2
Category EARTH SCIENCE/ATMOSPHERIC WATER VAPOUR
Parameter Water vapour vertical profiles (H2O)
Units per cubic centimeter (1/cm3: 1e-3 m)
Parameter 3
Category EARTH SCIENCE/ATMOSPHERIC CHEMISTRY/NITROGEN COMPOUNDS/NITROGEN OXIDES
Parameter Nitrogen trioxide (NO3)
Units per cubic centimeter (1/cm3: 1e-3 m)
Parameter 4
Category EARTH SCIENCE/ATMOSPHERE/AEROSOLS EXTINCTION
Parameter Aerosol extinction profiles
Units per cubic centimeter (1/cm3: 1e-3 m)
Parameter 5
Category EARTH SCIENCE/ATMOSPHERIC CHEMISTRY/NITROGEN DIOXIDE
Parameter Nitrogen dioxide (NO2)
Units per cubic centimeter (1/cm3: 1e-3 m)
Parameter 6
Category EARTH SCIENCE/ATMOSPHERIC CHEMISTRY/OXYGEN COMPOUNDS
Parameter Ozone (O3: mass concentration of ozone in air)
Units molecules per cubic centimeter (molec/cm3)
Accuracy Estimated precision 0.5-5%
Datacenter short Name ETHER
Datacenter long Name Ether Atmospheric Chemistry Data Centre
Address (Line1) ETHER - UPMC, T 45/46
Address (Line2)
City Paris CEDEX 05
Postal Code 75252
Country France
URL http://www.pole-ether.fr/etherTypo/index.php
Description
URL Type VIEW PROFESSIONAL HOME PAGE
Reference 0
Reference Title Retrieval of ozone profiles from GOMOS limb scattered measurements
Authors Tukiainen S., E. Kyrölä, P.T. Verronen, D. Fussen, L. Blanot, G. Barrot, A. Hauchecorne, and N. Lloyd
Publication Date 2011-04-04
Series
Edition
Volume 4
Issue
Report_number
Publication Place
Publisher Atmospheric Mesurement Techniques
Pages 659-667
ISBN
DOI 10.5194/amt-4-659-2011
Other reference details
URL
Description
URL Type
Reference 1
Reference Title Stratosphere NOy Species Measured by MIPAS and GOMOS Onboard ENVISAT During 2002-2010: Influence of Plasma Processes onto the Observed Distribution and Variability
Authors Arnone E. and A. Hauchecorne
Publication Date 2012-07-01
Series
Edition
Volume 168
Issue 1-4
Report_number
Publication Place
Publisher Space Science Reviews
Pages 315-332
ISBN
DOI 10.1007/s11214-011-9861-1
Other reference details
URL
Description
URL Type
Reference 2
Reference Title Harmonized dataset of ozone profiles from satellite limb and occultation measurements
Authors Sofieva V.F., N. Rahpoe, J. Tamminen, E. Kyrölä, N. Kalakoski, M. Weber, A. Rozanov, C. Von Savigny, A. Laeng, T. Von Clarmann, G. Stiller, S. Lossow, D. Degenstein, A. Bourassa, C. Adams, C. Roth, N. Lloyd, P. Bernath, R. J. Hargreaves, J. Urban, D. Murtagh, A. Hauchecorne, F. Dalaudier, M. Van Roozendael, N. Kalb, and C. Zehner
Publication Date 2013-12-23
Series
Edition
Volume 5
Issue 2
Report_number
Publication Place
Publisher Earth System Science Data
Pages 349-363
ISBN
DOI 10.5194/essd-5-349-2013
Other reference details
URL
Description
URL Type
Reference 3
Reference Title OClO slant column densities derived from GOMOS averaged transmittance measurements
Authors Tétard C., D. Fussen, F. Vanhellemont, C. Bingen, E. Dekemper, N. Mateshvili, D. Pieroux, C. Robert, E. Kyrölä, J. Tamminen, V. Sofieva, Alain Hauchecorne, Francis Dalaudier, Jean-Loup Bertaux , O. Fanton D'Andon, G. Barrot, L. Blanot, A. Dehn, L. Saavedra De Miguel
Publication Date 2014-11-08
Series
Edition
Volume 6
Issue 11
Report_number
Publication Place
Publisher Atmospheric Measurement Techniques
Pages 2953-2964
ISBN
DOI 10.5194/amt-6-2953-2013
Other reference details
URL
Description
URL Type
Reference 4
Reference Title O2 and OH Night Airglow Emission Derived from GOMOS-Envisat Instrument.
Authors Bellisario C., P. Keckhut, L. Blanot, A. Hauchecorne, P. Simoneau
Publication Date 2014-06-07
Series
Edition
Volume 31
Issue 6
Report_number
Publication Place
Publisher Journal of Atmospheric and Oceanic Technology
Pages 1301-1311
ISBN
DOI 10.1175/JTECH-D-13-00135.1
Other reference details
URL
Description
URL Type
Reference 5
Reference Title Mid-latitude ozone monitoring with the GOMOS-ENVISAT experiment version 5: the noise issue
Authors P. Keckhut, Hauchecorne A., Blanot l.,Hocke k., Godin-Beekmann S., Bertaux J.-L., Barrot G., Kyrolola E., van Gijsel J.A.E. and Pazmino A.
Publication Date 2010-12-13
Series
Edition
Volume 10
Issue
Report_number
Publication Place
Publisher Atmospheric Chemistry and Physics
Pages 11839–11849
ISBN
DOI 10.5194/acp-10-11839-2010
Other reference details
URL http://www.atmos-chem-phys.net/10/11839/2010/acp-10-11839-2010.pdf
Description
URL Type ON-LINE ARCHIVE
Multimedia GOMOS vertical profiles of local densities for all gasses
Caption GOMOS vertical profiles of local densities for all gasses
Description Examples of GOMOS Level 2 processed data of local densities for all gases (O3, NO3, NO2, O3, aerosol and air) (Source: http://earth.esa.int/envisat/instruments/gomos/data-app/dataprod.html#onebeeprod)
Distribution Format
Media
Size
Fees
Data Resolution
Latitude Resolution 3 km
Longitude Resolution 3 km
Horizontal Resolution Range 50 < 100 km (approximately 0.5 < 1 degrees)
Vertical Resolution 2 km
Vertical Resolution Range From 1.7 to 5 km depending on the altitude and the parameter measured
Temporal Resolution From 1 second to 1 minute
Temporal Resolution Range
Instrument 0
Site Name
Location GLOBAL
Detailed Location
Site Longitude
Site Latitude
Site Altitude
Site Depth
Platform short Name ENVISAT
Platform long Name Environmental Satellite
Instrument short Name GOMOS
Instrument long Name Global Ozone Monitoring by Occultation of Stars
Instrument Longitude
Instrument Latitude
Network Lons/Lats (Format : lon0 lat0, Lon1 Lat1, ...)
Instrument Altitude
Instrument Depth
Instrument Description
Spatial Coverage
Southern latitude -91.6 degrees
Northern latitude 91.6 degrees
Western longitude -180 degrees
Eastern longitude 180 degrees
Minimum Altitude 0 km
Maximum Altitude 12 km
Minimum depth
Maximum depth
Paleo Temporal Coverage
Paleo Start Date
Paleo Stop Date
Eon
Era
Period
Epoch
Stage