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Dataset

 

SAGE III: Level 1B transmission profiles version 4, binary formatted

Update Frequency: Not Planned
Status: Completed
Online Status: ONLINE
Publication State: Published
Publication Date: 2006-12-10
Download Stats: last 12 months

Abstract

Stratospheric Aerosol and Gas Experiment III (SAGE III) was an instrument on board a Meteor-3M spacecraft, launched on December 10, 2001. Routine measurement operations began in March 2002 until the SAGE III mission was terminated in March 2006. The specific measurement objectives of SAGE III provide 1 km vertical resolution profiles of: aerosols and clouds at seven wavelengths from the mid-troposphere into the stratosphere and where appropriate, the mesosphere; O3 from the mid-troposphere to 85 km; H2O from the planetary boundary layer to 50 km; NO2 from the tropopause to 45 km; NO3 from 20 to 55 km; OClO from 15 to 25 km; and, O2 from the mid-troposphere to 70 km.

This dataset contains level 1B version 4 transmission profiles.

The Level 1B Transmission product contains the SAGE III atmospheric slant path transmission profiles at 87 spectral channels. The profiles are skewed vertically and extend from sea level to an altitude of 100 km in 0.5 km intervals. The standard deviation of the binned transmission data is also provided for each reported altitude and channel. These data have been geolocated and normalized against exoatmospheric solar measurements to produce slant path transmission profiles.

Citable as:  National Aeronautics and Space Administration; Chu, W.P. (2006): SAGE III: Level 1B transmission profiles version 4, binary formatted. NCAS British Atmospheric Data Centre, date of citation. https://catalogue.ceda.ac.uk/uuid/43bd7eb7660641f09dab3655f58f571e
Abbreviation: Not defined
Keywords: SAGE III, transmission

Details

Previous Info:
No news update for this record
Previously used record identifiers:
No related previous identifiers.
Access rules:
Restricted data: please submit an application using the REQUEST ACCESS link for access.
Use of these data is covered by the following licence: http://licences.ceda.ac.uk/image/data_access_condition/sage3.pdf. When using these data you must cite them correctly using the citation given on the CEDA Data Catalogue record.
Data lineage:

The Stratospheric Aerosol and Gas Experiment III (SAGE III) data were downloaded from the EOS Data Gateway, Langley DAAC Data Pool and it should be noted that the version number on that system represents the Earth Science Data Type version rather than the SAGE III Data version. Accordingly, the newly-released V3 data are stored as version '002'. Data and software supplied to the BADC by NASA Langley are stored in the BADC SAGE 3 archive.

Data Quality:
For details of quality control see user guide - http://data.ceda.ac.uk/badc/sage3/doc/sage3_data_products_users_guide.pdf
File Format:
Data are binary formatted

Related Documents

 SAGE III user guide

Process overview

This dataset was generated by a combination of instruments deployed on platforms and computations as detailed below.

Mobile platform operations

Mobile Platform Operation 1 Mobile Platform Operation for: Meteor -3M satellite

Computation Element: 1

Title deployed on Meteor -3M satellite
Abstract This computation involved: deployed on Meteor -3M satellite. Meteor-3M is a joint Russian-US environment/atmosphere monitoring meteorological satellite launched on December 10th, 2001.
Input Description None
Output Description None
Software Reference None

Computation Element: 2

Title SAGE III: Level 1B transmission profiles
Abstract The Level 1B Transmission product contains the SAGE III atmospheric slant path transmission profiles at 87 spectral channels, as listed in Appendix B. The profiles are skewed vertically and extend from sea level to an altitude of 100 km in 0.5 km intervals. The standard deviation of the binned transmission data is also provided for each reported altitude and channel. These data have been geolocated and normalized against exoatmospheric solar measurements to produce slant path transmission profiles. Algorithm retrievals outlined in the Algorithm Theoretical Basis Document (ATBD) are used to reduce and invert these data into the Level 2 products listed in Appendices C and D. The Level 1B product is only available for solar measurements. In the construction of the transmission profiles, atmospheric density information is used to correct for refraction effects. This information is derived from temperature profiles interpolated to the location and time of each SAGE III event from global gridded meteorological analyses provided by the National Oceanic and Atmospheric Administration’s (NOAA’s) National Center for Environmental Prediction (NCEP). These data extend from the surface to a pressure-altitude of 0.4 hPa (~55 km). Above this altitude, climatological temperature data are used from the Global Reference Atmospheric Model - 1995 (GRAM95, NASA Technical Memorandum 4715). The composite temperature profile information is included in the Level 1B data product. Note that the NCEP temperature product is also used to correct for molecular scattering in the Level 2 retrieval algorithm. The retrieval of temperature directly from the SAGE III solar measurements occurs later, downstream in the data LaRC 475-03-060 Version 1.4 SAGE III Data Products User’s Guide 03/04 6 processing flow, and is reported in the Level 2 products.
Input Description None
Output Description None
Software Reference None
Output Description None
  • long_name: Aerosol Extinction
  • gcmd_name: Aerosol Extinction
  • gcmd_url: http://vocab.ndg.nerc.ac.uk/term/P141/4/GVAR0017
  • names: Aerosol Extinction, http://vocab.ndg.nerc.ac.uk/term/P141/4/GVAR0017
  • long_name: Air Temperature
  • gcmd_name: Air Temperature
  • gcmd_url: http://vocab.ndg.nerc.ac.uk/term/P141/4/GVAR0027
  • names: Air Temperature, http://vocab.ndg.nerc.ac.uk/term/P141/4/GVAR0027
  • long_name: Barometric Altitude
  • gcmd_name: Barometric Altitude
  • gcmd_url: http://vocab.ndg.nerc.ac.uk/term/P141/4/GVAR0074
  • names: http://vocab.ndg.nerc.ac.uk/term/P141/4/GVAR0074, Barometric Altitude
  • long_name: Chlorine Dioxide
  • gcmd_name: Chlorine Dioxide
  • gcmd_url: http://vocab.ndg.nerc.ac.uk/term/P141/4/GVAR0127
  • names: Chlorine Dioxide, http://vocab.ndg.nerc.ac.uk/term/P141/4/GVAR0127
  • long_name: Cloud Amount
  • names: Cloud Amount
  • long_name: Extinction At 1020 nm
  • names: Extinction At 1020 nm
  • long_name: Extinction At 385 nm
  • names: Extinction At 385 nm
  • long_name: Frequency
  • names: Frequency
  • long_name: Halons And Halogens
  • names: Halons And Halogens
  • long_name: NO3
  • alt_names: ['Nitrate']
  • names: Nitrate
  • gcmd_name: Nitrogen Compounds
  • gcmd_url: http://vocab.ndg.nerc.ac.uk/term/P141/4/GVAR0558
  • long_name: Nitrogen Compounds
  • names: Nitrogen Compounds, http://vocab.ndg.nerc.ac.uk/term/P141/4/GVAR0558
  • long_name: Nitrogen Dioxide
  • gcmd_name: Nitrogen Dioxide
  • gcmd_url: http://vocab.ndg.nerc.ac.uk/term/P141/4/GVAR0559
  • names: Nitrogen Dioxide, http://vocab.ndg.nerc.ac.uk/term/P141/4/GVAR0559
  • long_name: Nitrogen Oxides
  • gcmd_name: Nitrogen Oxides
  • gcmd_url: http://vocab.ndg.nerc.ac.uk/term/P141/4/GVAR0560
  • names: http://vocab.ndg.nerc.ac.uk/term/P141/4/GVAR0560, Nitrogen Oxides
  • long_name: Oxygen Compounds
  • names: Oxygen Compounds
  • gcmd_name: EARTH SCIENCE > Atmosphere > Atmospheric Chemistry/Oxygen Compounds > Ozone
  • gcmd_url: http://vocab.ndg.nerc.ac.uk/term/P041/4/G164
  • long_name: Ozone
  • names: EARTH SCIENCE > Atmosphere > Atmospheric Chemistry/Oxygen Compounds > Ozone, http://vocab.ndg.nerc.ac.uk/term/P041/4/G164
  • long_name: Temperature
  • names: Temperature
  • long_name: Water Vapor
  • gcmd_name: Water Vapor
  • gcmd_url: http://vocab.ndg.nerc.ac.uk/term/P141/4/GVAR0943
  • names: Water Vapor, http://vocab.ndg.nerc.ac.uk/term/P141/4/GVAR0943

Co-ordinate Variables

Coverage
Temporal Range
Start time:
2002-02-27T00:00:00
End time:
2005-11-12T23:59:59
Geographic Extent

 
80.0000°
 
-180.0000°
 
180.0000°
 
-80.0000°