Filter radiometers sensitive from 280 to 320 nm and from 280 to 400 nm, respectively, were used for measurements of the actinic flux in the stratosphere. Since the instruments are calibrated for absolute spectral sensitivity the data can be compared with model calculations of the actinic flux. Data were obtained during seven balloon flights during the European Arctic Stratospheric Ozone Experiment (EASOE).
Summary form only. An abstract of the above-titled article, taken from the 1963 IEEE International Convention (held March 25-28, New York, NY, USA), is presented.
Filter radiometers sensitive from 280 to 320 nm and from 280 to 400 nm, respectively, were used for measurements of the actinic flux in the stratosphere. Since the instruments are calibrated for absolute spectral sensitivity the data can be compared with model calculations of the actinic flux. Data were obtained during seven balloon flights during the European Arctic Stratospheric Ozone Experiment (EASOE).
The National Aeronautics and Space Administration (NASA) Balloon Program, in collaboration with the Esrange Facility of the Swedish Space Corporation, has established and demonstrated a long-duration balloon (LDB) capability in the northern hemisphere. Large scientific balloons are now launched from Esrange in the northern part of Sweden (68° N) during the late May to mid-July timeframe when easterly stratospheric winds are prevalent. This new capability for mediumto long-duration heavy-load scientific balloon flights from Esrange/Sweden to Canada/Alaska was inaugurated in June 2005 with the successful launch and flight of the Balloon-borne Large-Aperture Submillimeter Telescope (BLAST) payload. BLAST was a NASA-sponsored 2,200-kg (4,850-lb) submillimeter telescope from the University of Pennsylvania and University of Toronto. Additional NASAsponsored flights of the Anti-Electron SubOrbital Payload (AESOP) from the University of Delaware, the Ultra-Long-Duration Balloon (ULDB) vehicle, and the Transition Radiation Array for Cosmic Energetic Radiation (TRACER) Lite from the University of Chicago were launched during the 2006 balloon campaign. Highlights from both campaigns will be included in the presentation.
