NDACC Measurements and Analyses Directory

NDACC Sites

This Directory summarizes the operational status of the Network for the Detection of Atmospheric Composition Change (NDACC). For clarity, only long-term NDACC measurement activities are listed in Sections Ia and Ib. Section IIa and IIb include only NDACC measurement activities conducted intermittently or during limited duration campaigns. Some of the locations listed in Section II also appear in Section I since they are also associated with long-term data sets.

A fundamental aim of the NDACC is to provide high-quality data for scientific studies. The NDACC Theory and Analysis Working Group promotes the use of the NDACC data by all interested researchers. All NDACC data over two years old is publicly available. However, many NDACC investigators have agreed to make their data publicly available immediately upon archiving. The public record is available through anonymous ftp at ftp.cpc.ncep.noaa.gov/ndacc. The use of NDACC data prior to its being made publicly available (i.e., for field campaigns, satellite validation, etc.) is possible via collaborative arrangement with the appropriate PI(s). Co-authorship shall be offered to the associated NDACC PI(s) on publications resulting from the use of non-public data.

Users of NDACC data are expected to consult the on-line documentation and reference articles to fully understand the scope and limitations of the instruments and resulting data and are encouraged to contact the appropriate NDACC PI (listed in the data documentation on the web page) to ensure the proper use of specific data sets. Those using NDACC data in a talk or paper are asked to acknowledge its use, and to inform the Theory and Analysis Working Group PIs of any relevant publications.