SAGE III Ozone Loss and Validation Experiment (SOLVE)


Project Manager: Michael Craig

[Picture of NASA-DC-8 and ER-2]

Fig. 1 NASA DC-8, ER-2 and bundled deployment team posed before the hangar in Kiruna, Sweden. The Arena Arctica served as the base of operations for the SOLVE mission.

During the winter of 1999-2000, the NASA Ames Earth Science Project Office (ESPO) managed the SAGE III Ozone Loss and Validation Experiment (SOLVE) conducted in Kiruna, Sweden (Fig. 1). Coordinated with the European Science Commission’s Third European Stratospheric Experiment on Ozone (THESEO), SOLVE employed multiple aircraft, balloons, ground-based instruments, satellites, and an extensive theory team to collect the largest database to date of measurements of the Arctic winter stratosphere and the causes of stratospheric ozone loss.

Since the campaign, extensive work has been underway to analyze these measurements. In September, 2000 a SOLVE/THESEO science team meeting was held in Palermo, Italy for scientists to share preliminary results. More than 350 people attended, with 55 oral presentations and 143 posters. In December, 2000 a special session of the Fall American Geophysical Union meeting in San Francisco was devoted to SOLVE/THESEO, with 25 oral presentations and 60 posters. Publications of the results are still progressing. Fifteen papers have already been published in peer review journals, including three in Science. The cover of one issue of Geophysical Research Letters featured photographs of the SOLVE campaign. Two special issues of the Journal of Geophysical Research devoted to SOLVE are in preparation. A total of 27 papers have been accepted for the first special issue; 49 papers have been submitted for the second and are currently under review. The second special issue will be the largest dedicated publication to date. The quantity and quality of these publications is testament to the value of the measurements that were collected.

In addition to managing the mission, NASA Ames (Code SGG) scientists provided instruments on the ER-2 aircraft to measure meteorological variables and chemical tracers. Other (Code SGG and SGP) scientists also provided flight planning support and computer modeling of Polar Stratospheric Clouds (PSCs).

More information including experiment overview, goals, schedule, instrument payloads, mission details, and science team members can be found at the SOLVE web page (>.


Point of Contact: Michael Craig, 650/604-6586,