European Ionosonde Network DIAS (European Digital upper Atmosphere Server) collection

The European DIgital Upper Atmosphere Server (DIAS) aims at the development of a European digital data collection on the state of the upper atmosphere and on the efficient promotion of this collection to all possible users. DIAS provides access to ionograms, daily plots and maps for real-time ionospheric specification, for the long-term prediction frequency planning, for the nowcasting frequency management and warning purposes and for trans-ionospheric propagation. Furthermore, the DIAS collection contains data of the Digisonde's Network acquired by NOA. Data availability depends on each station, ie: AT138 since 2012, EB040-RO041-RL052-PQ052-JR055 since 2017, EA036 since 2021, TR170-SO148-DB049 since 2023. The available distinct products of the Network are the following: ART, DFT, DOP, DRG, DVL, GIF, ION, MMM, PNG, RSF, RSF.TMP, SAO, SBF, SKY, TLT, TMP, TXT, XML. SAO records (foF2, foF1, mD, mufD, fmin, foEs, fminF, fminE, foE, fxI, hF, hF2, hE, hEs, zmE, yE, qf, qe, downF, downE, downEs, ff, fe, d, fMUF, hfMUF, delta_foF2, foEp, fhF, fhF2, foF1p, phF2lyr, phF1lyr, zhalfNm, foF2p, fminEs, yF2, yF1, tec, scHgtF2pk, b0IRI, b1IRI, d1IRI, foEa, hEa, foP, hP, fbEs, typeEs) are also available.