The file obs_data_danta.csv contains the quadrature component of the EMI data collected across the Alpine peatland of Danta di Cadore (Belluno, Italy) in July 2021. Each row of the file represents a sounding, together with the associated latitude and longitude coordinates, and the corresponding uncertainties. Eleven (11) frequencies were acquired. And for each row (so, for each sounding location), the available measurements are arranged as follows: D1 D2 D3 D4 D5 D6 D7 D8 D9 D10 D11 1025, 1525, 2875, 5825, 7775, 12775, 15325, 25525, 36225, 63025, 80225 [Hz] The uncertainty value associated with each frequency is indicated in the S1 to S11 columns: S1 S2 S3 S4 S5 S6 S7 S8 S9 S10 S11 1025, 1525, 2875, 5825, 7775, 12775, 15325, 25525, 36225, 63025, 80225 [Hz] All the measurements are in ppm. The instrument used is a GEM-2 (produced by Geophex Ltd). Our best estimation of the height of the instrument during the acquisition is 1 m from the surface.