The NY-Ålesund TurbulencE Fiber Optic eXperiment (NYTEFOX): Investigating the Arctic boundary layer, Svalbard

Abstract

The NY-Ålesund TurbulencE Fiber Optic eXperiment (NYTEFOX) was a field experiment at the Ny-Ålesund Arctic site (78.9-11.9) and yielded a unique meteorological data set. These data describe the distribution of heat, airflows, and exchange in the Arctic boundary layer for a period of 14d from 26 February to 10 March 2020. NYTEFOX is the first field experiment to investigate the heterogeneity of airflow and its transport of temperature, wind, and kinetic energy in the Arctic environment using the fiber-optic distributed sensing (FODS) technique for horizontal and vertical observations. FODS air temperature and wind speed were observed at a spatial resolution of 0.127m and a temporal resolution of 9s along a 700m horizontal array at 1m above ground level (a.g.l.) and along three 7m vertical profiles. Ancillary data were collected from three sonic anemometers and an acoustic profiler (minisodar; sodar is an acronym for "sound detection and ranging") yielding turbulent flow statistics and vertical profiles in the lowest 300ma.g.l., respectively. The observations from this field campaign are publicly available on Zenodo (10.5281/zenodo.4756836, ) and supplement the meteorological data set operationally collected by the Baseline Surface Radiation Network (BSRN) at Ny-Ålesund, Svalbard.