We performed a successful test campaign this November. The overall idea
was to test all procedures, check the equipment and logistics and ALL which
belongs to a monitoring campaign. WE did that and got interesting
data to work with. Look how happy we were :)
The campaign was performed simultaneously at two locations: Tololo (30ºS,70ºW,
2200 m.a.s.l.) and Rapanui (27ºS,109ºW, 41 m.a.s.l.). At Tololo
we made meteorological soundings recahing up to 24-28 km, i.e., the tropopause
region was nicely captured in the measurements. At Easter Island, ozone soundings
were performed reaching up to 30-35 km. The subtropical jet stream (STJ),
which is our main interest in this study, was a bit to the south during
the first launchings but approached the sites by the end of the period. So,
we can get an idea of what happens with and without STJ above the site of
measurements. In addition to the actual measurements, weather forecasts were
provided twice a day for both sites. In the case of Tololo, the forecast
was made with the MM5 model, in nested mode, at 12 km horizontal resolution.
Plenty of satellite images were saved during the whole week of measurements.
This and the models will allow a good characterization of the synoptic conditions,
and since several soundings were simultaneous, we will be able to say something
about the similarities and differences between soundings at Rapanui and Tololo....and
thereby about the influence of the Andes Cordillera. All in all, a lot to
think about and work with over the next months.
The CENMA people installed the PM10 collector which will analyzed with
respect to 7Be by CCHEN.
In addition to the measurement campaign, we took the opportunity for giving
seminars and having interesting scientific (and the like) discussions.
We are REALLY grateful for the support and kind welcome we received from
the TOLOLO staff and the DMC staff at Rapanui. Also for the kind and
generous participation of the Research Center at Karlsruhe, and our colleagues
Martin Kohler and Annica Ekman.
