August 31, 2001 Science Council Working Group on Large-Scale Facilities for Fundamental Scientific Research Sub-working group for HALO Questionnaire concerning project HALO High Altitude and Long Range Research Aircraft - 2 - Application by Deutschen Zentrums für Luft- und Raumfahrt (DLR) and Max-Planck-Gesellschaft (MPG). This Questionnaire has been answered by the team of HALO project scientists and members of the DLR Flight Facilities. Points of Contact: Prof. Dr. Meinrat O. Andreae and Prof. Dr. Jos Lelieveld Max-Planck-Institut für Chemie Postfach 3060 55020 Mainz Email:
[email protected] [email protected] Prof. Dr. Ulrich Schumann, Deutsches Zentrum für Luft- und Raumfahrt (DLR) Institut für Physik der Atmosphäre, Oberpfaffenhofen Postfach 1116 82230 Wessling, Tel 08153 28 2520, Fax: -1841 Email:
[email protected] Dr. Helmut Ziereis Project Leader HALO Deutsches Zentrum für Luft- und Raumfahrt Oberpfaffenhofen Postfach 1116 82230 Wessling, Tel. 08153 28 2542, Fax: -1841 Email:
[email protected] Volkert Harbers and Dr. Monika Krautstrunk Flight Facilities of DLR Deutsches Zentrum für Luft- und Raumfahrt Oberpfaffenhofen Postfach 1116 82230 Wessling Email:
[email protected] [email protected] - 3 - A Executive summary Please provide a brief summary of the facility project (scientific vision, strategic im- portance, scientific objectives and purpose, max. two pages). Physical, chemical and biological processes within the atmosphere and at the Earth’s sur- face maintain the conditions necessary for life on Earth. In the past decades, we have ob- served important changes in climate and in the composition of the atmosphere, which are expected to affect the well-being of humankind and the biosphere.