Abstract. On 20 March 2015, a total solar eclipse occurred over Ny-Ålesund (78.9° N, 11.9° E), Svalbard, in the high Arctic. It has been the first time that the surface radiation components during the totality of a solar eclipse have been measured by a Baseline Surface Radiation Network (BSRN) station. With the Ny-Ålesund long term radiation data set as background (available at http://dx.doi.org/10.1594/PANGAEA.150000), we here present the peculiarities of the radiation components and basic meteorology observed during the eclipse event. The supplementary data set contains the basic BSRN radiation and surface meteorological data in 1-minute resolution for March 2015, and is available at http://dx.doi.org/10.1594/PANGAEA.854326. The eclipse radiation data will be a useful auxiliary data set for further studies on micro-meteorological surface-atmosphere exchange processes in the Svalbard environment, and may serve as a test case for radiative transfer studies.