The Theory and Analysis WG presentation included a summary of the data files recently generated using chemistry transport models and their use for bridging the irregular space and time sampling of ground-based measurements and the global perspective.In addition this WG described how NDACC column measurements could be used to assess the credibility of residual circulation trends in reanalysis products.
A comprehensive review article commemorating this anniversary appears in the September-October 2016 issue of NASA’s Earth Observer Newsletter.
The newsletter is a bi-monthly publication that consolidates NASA Earth Science news and has a readership of more than 6000 internationally.
The annual meeting of the international Steering Committee (SC) for NDACC was held from October 17 to 21 in Bremen, Germany at the University of Bremen Guesthouse ‘Teerhof’.
Justus Notholt of the University of Bremen hosted the meeting.
As in the past, these reports highlighted IWG activities and/or meetings during the past year, summarized NDACC measurement and analysis activities and recent accomplishments, reviewed the status of proposals (received and pending) seeking NDACC measurement affiliation, and outlined possible new sites for consideration.
While there are some cases where data archiving is not up to date, these are becoming smaller in number due to the proactive involvement of the various IWG Co-Chairs and the DHF Manager in contacting the people responsible for data submission from the various sites and assisting them in resolving any issues associated with such submission.Following the close of the meeting, many SC members visited the Alfred Wegener Institute in Bremerhaven where they were given an overview of polar research and sea exploration activities and a tour of the ice laboratory.While in Bremerhaven they also had the opportunity to visit the Klimahaus (Climate House) and German Maritime Museums.This section highlights significant items of interest within NDACC.October 2016: Publication of an NDACC Feature Article in NASA’s Earth Observer Newsletter October 2016: The NDACC Steering Committee Holds its Annual Meeting in Bremen, Germany September 2016: Three reference Dobsons participate in the ATMOZ campaign at Izana August 2016: Recommendations for the use of standardized vertical resolution and uncertainty for the NDACC ozone and temperature lidars now published in AMT Special Issue on NDACC 25th Anniversary July 2016: The Mystery of Carbon Tetracloride: SPARC Report May 2016: NDACC Participation in the 8 GRUAN Implementation and Coordination Meeting April 2016: Rising North American methane and ethane emissions from oil and gas activities identified by a NDACC FTIR and 3-D model analysis April 2016: NDACC tropospheric ozone lidar long-term time-series highlights role of tropopause folds in the free-tropospheric ozone budget March 2016: NDACC Study Reveals Relationship between Oil and Gas Boom and Increase in Atmospheric Methane Archives 2016 marks 25 years of successful operations of NDACC for enabling and enhancing global atmospheric research.Details on the original organizational structure of NDSC, an assessment of the first 10 years of NDSC operations, and the transition of NDSC to NDACC follow.