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The BAYSOFI campaign - Measurements carried out during the total solar eclipse of August 11, 1999

  • Peter Fabian
  • , Martin Winterhalter
  • , Bernhard Rappenglück
  • , Heinrich Reitmayer
  • , Andreas Stohl
  • , Peter Koepke
  • , Hans Schlager
  • , Harald Berresheim
  • , Thomas Foken
  • , Bodo Wichura
  • , Karl Heinz Häberle
  • , Rainer Matyssek
  • , Thomas Kartschall
  • Technical University of Munich
  • University of Munich
  • Deutsches Zentrum für Luft- und Raumfahrt (DLR)
  • Meteorologisches Observatorium
  • Universität Bayreuth
  • Potsdam Institute for Climate Impact Research (PIK)–Member of the Leibniz Association

Research output: Contribution to journalArticlepeer-review

19 Scopus citations

Abstract

The total solar eclipse of August 11, 1999 provided a unique opportunity to observe the input of fast day-night and night-day transitions, under high solar elevation around noon, on the earth-atmosphere-biosphere system. Within the interdisciplinary field campaign BAYSOFI, measurements of radiation, boundary layer micrometeorology and photochemistry, photosynthesis and transpiration were carried out at Freising-Weihenstephan and several locations nearby focusing on short-term effects of the eclipse. Although the overall grosswetterlage on August 11 was not favourable for viewing the eclipse, with clouds covering most of central Europe, observational conditions at Weihenstephan were fair due to a large hole in the cloud layer which appeared just half hour before totality lasting for more than one hour. Thus significant effects of the eclipse on radiation, photolysis rates, OH, the temperature, wind, turbulence structure and stratification, ozone and CO2 fluxes, photosynthesis, transpiration and sap flow of trees could be observed which are reported and discussed in the following sequence of papers.

Original languageEnglish
Pages (from-to)165-170
Number of pages6
JournalMeteorologische Zeitschrift
Volume10
Issue number3
DOIs
StatePublished - 2001

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