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Home > NDACC Goals and Organization >  NDACC Protocols

NDACC Protocols

The primary goal of the Network for the Detection of Atmosphere Composition Change (NDACC) is to obtain consistent, standardized, long-term measurements of atmospheric trace gases and chemical species, particles, physical parameters, and spectral UV radiation reaching the Earth’s surface. Since its inception in 1991 as the Network for the Detection of Stratospheric Change (NDSC), the network focus has expanded considerably. NDACC remains committed to making observations through which changes in the physical and chemical state of the stratosphere can be determined and understood, with an emphasis on the long-term evolution of the ozone layer (i.e., its decay, likely stabilization and expected recovery). However, its measurement and analysis priorities now encompass both the stratosphere and free troposphere in its exploration of the interface between changing atmospheric composition and climate. Thus, NDACC’s broadened objectives are presently centered on the following priorities:

  • Establishing long-term databases for detecting changes and trends in atmospheric composition, and understanding their impacts on the stratosphere and troposphere;
  • Establishing scientific links and feedbacks between climate change and atmospheric composition;
  • Calibrating and validating atmospheric measurements from other platforms (i.e., satellite, aircraft, and ground-based);
  • Providing critical datasets that fill gaps in satellite observations;
  • Providing collaborative support to scientific field campaigns and to other chemistry and climate observing networks; and
  • Providing validation and development support for atmospheric models.

NDACC is a major component of the international atmospheric research effort, and has been endorsed by national and international scientific agencies, including the United Nations Environment Programme and the International Ozone Commission of the International Association of Meteorology and Atmospheric Sciences. Since its inception, it has been a major contributor to the Global Atmosphere Watch Programme of the World Meteorological Organization.

In order to best address its goals and accomplish its objectives, the NDACC has established the following Protocols to guide the various aspects of its operations.

Steering Committee Appointments and Elections
  Selection guidelines for Steering Committee members
(Revision:  March 7, 2017)  DOC   PDF
Data Protocol
  Guidelines for data submission and data use
(Revision:  March 7, 2017) DOC   PDF
Measurements Protocol
  Application process for NDACC instrument affiliation
(Revision:  March 7, 2017)  DOC   PDF
Validation Protocol
  General guidelines for instrument certification
    Appendix I - Dobson/Brewer Instruments
    Appendix II - Infrared Instruments (FTIR)
    Appendix III - Lidar Instruments
    Appendix IV - Microwave Instruments
    Appendix V - Ozonesonde Instruments
    Appendix VI - Ultraviolet Spectro-Radiometry
    Appendix VII - UV/Visible Instruments
    Appendix VIII - BackscatterSonde Instruments
    Appendix IX - DustSonde Instruments
    Appendix X - FrostpointSonde Instruments
(Revision:  March 7, 2017) 
(Revision:  April 10, 2017)  
(Revision:  March 9, 2017)  
(Revision:  March 10, 2017)  
(Revision:  March 6, 2017)  
(Revision:  MArch 9, 2017)  
(Revision:  March 21, 2017)  
(Revision:  November 30, 2009) 
(Revision:  April 12, 2017)  
(Revision:  March 13, 2017)  
(Revision:  March 13, 2017)  
Instrument Intercomparisons Protocol
  Guidelines for instrument intercomparison campaigns
(Revision:  March 9, 2017) DOC   PDF
Protocol for Theory and Analysis
  Application process for use of NDACC private data records
(Revision:  April 7, 2017) DOC   PDF
Cooperating Network Protocol
  Definition of Cooperating Network and application process
(Revision:  March 2, 2017) DOC   PDF

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Page last modified: Friday, 21-Apr-2017 19:42:17 UTC