(Ex-)Hurricane Ophelia kept us busy the last days. IEK-7 campaign seem to attract natural catastrophies. Or is it that we are going wherever the weather is exceptional? No-one knows… However, we found ourselfs in the middle of national weather warnings from Sunday midday onwards. According to the NOAA Hurricane Center, Ophelia was the easternmost hurricane in the Northern Atlantic on record. Of course, being the dedicated climate researchers we are, we had to take the chance to probe the hurricane in front of our doorstep.
Research aircrafts do not usually fly straight to a point and back, as you would expect for instance a passenger plane to go. Observing flight tracks of such a plane give very funny patterns, hence. See for yourself.
One major goal in the WISE campaign is to follow the time evolution of air masses in the UTLS (upper troposphere-lower stratosphere) and to see how they are affected by tropopheric-stratospheric exchange. The latest (and upcoming) research flights are planned to provide an idea of exacty this time evolution. Flight 10 last Saturday was targeting a feature in the West-Atlantic with the plan to probe the same air again in later flights. At the moment, HALO is on its way to catch it now, two days later close to the Norwegian border.
Yesterday evening at 19:28 (German time), HALO with the WISE instruments onboard landed at Shannon airport. The flight from the DLR site in Oberpfaffenhofen was used not only as a transfer but to investigate some of the WISE scientific goals on the way. Therefore instead of going to Shannon directly, the transfer was enlonged to a 10-hour research flight passing by Southern Norway, up north beyond the polar circle and coming down over Iceland. Eventually, a hexagonal flight pattern for tomographic evaluation was added above the North Atlantic crossing over from Iceland to Ireland.
Just about a month after the successful StratoClim campaign is over, there is the next measurement campaign with IEK-7 participation “taking off” at the moment… so welcome to WISE! During the next 5 weeks, Irene, Isabell, Lukas and me (Conny) will keep you posted here in the blog about what is going on with our instruments on-board of HALO.