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Surface Energy Fluxes During the Total Solar Eclipse over Ny-Ålesund, Svalbard, on 20 March 2015

Title data

Schulz, Alexander ; Schaller, Carsten ; Maturilli, Marion ; Boike, Julia ; Ritter, Christoph ; Foken, Thomas:
Surface Energy Fluxes During the Total Solar Eclipse over Ny-Ålesund, Svalbard, on 20 March 2015.
In: Meteorologische Zeitschrift. Vol. 26 (2017) Issue 4 . - pp. 431-440.
ISSN 1610-1227
DOI: https://doi.org/10.1127/metz/2017/0846

Abstract in another language

On 20 March 2015, a total solar eclipse occurred over Ny-Ålesund (78.9° N, 11.9° E), Svalbard, under ideal conditions with clear sky. The cycle of the radiation fluxes is comparable with other experiments during eclipses, with even the upward longwave radiation showing significant changes, with a delay to the shortwave radiation and a slowly linear increase after the totality. Also, under polar conditions, an increase of the wind velocity before and a decrease after the totality was found, which is an indicator of the generation of an “Eclipse cyclone”. This change of the wind direction generated a local wind system with a near-surface-layer katabatic flow. During the eclipse, a remarkably large sensible heat flux was observed. The turbulent fluxes were analysed using a wavelet technique with 1-minute time resolution, which is the ideal method for investigating these highly non-steady conditions. No influences on the boundary layer structure as measured with radiosondes were found, with the exception of a wind direction change during the eclipse cyclone below the shallow inversion layer.

Further data

Item Type: Article in a journal
Refereed: Yes
Additional notes: BAYCEER141751
Institutions of the University: Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Earth Sciences > Professorship Micrometeorology
Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Earth Sciences > Former Professors > Professorship Micrometeorology - Univ.-Prof. Dr. Thomas Foken
Research Institutions
Research Institutions > Research Centres
Research Institutions > Research Centres > Bayreuth Center of Ecology and Environmental Research- BayCEER
Faculties
Faculties > Faculty of Biology, Chemistry and Earth Sciences
Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Earth Sciences
Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Earth Sciences > Former Professors
Result of work at the UBT: Yes
DDC Subjects: 500 Science
Date Deposited: 10 Jan 2018 13:20
Last Modified: 10 Jan 2018 13:20
URI: https://eref.uni-bayreuth.de/id/eprint/41260