ingv:https://data.ingv.it/metadata/iso19115/1102.xml eng utf8 dataset Istituto Nazionale di Geofisica e Vulcanologia - INGV ufficiogestionedati@ingv.it http://istituto.ingv.it/it/ufficio-gestione-dati pointOfContact 2026-04-08 Linee Guida RNDT 2.0 WGS84 IonoNet: An INGV network of OBLIQUE Ionosondes IonoNet 2025-01-01 publication ingv:https://doi.org/10.13127/iononet Istituto Nazionale di Geofisica e Vulcanologia - INGV ufficiogestionedati@ingv.it http://www.ingv.it owner Istituto Nazionale di Geofisica e Vulcanologia - INGV ufficiogestionedati@ingv.it http://istituto.ingv.it/it/ufficio-gestione-dati resourceProvider Istituto Nazionale di Geofisica e Vulcanologia - INGV ufficiogestionedati@ingv.it http://istituto.ingv.it/it/ufficio-gestione-dati publisher Zirizzotti, Achille Istituto Nazionale di Geofisica e Vulcanologia (INGV) achille.zirizzotti@ingv.it https://orcid.org/0000-0001-7586-9219 ORCID author Sciacca, Umberto Istituto Nazionale di Geofisica e Vulcanologia (INGV) umberto.sciacca@ingv.it https://orcid.org/0000-0002-8137-3102 ORCID author Zuccheretti, Enrico Istituto Nazionale di Geofisica e Vulcanologia (INGV) enrico.zuccheretti@ingv.it https://orcid.org/0000-0003-1732-4557 ORCID author Scotto, Carlo Istituto Nazionale di Geofisica e Vulcanologia (INGV) carlo.scotto@ingv.it https://orcid.org/0000-0002-9437-6775 ORCID author Perrone, Loredana Istituto Nazionale di Geofisica e Vulcanologia (INGV) loredana.perrone@ingv.it https://orcid.org/0000-0003-4335-0345 ORCID author Digital profile ingv:https://doi.org/10.13127/iononet Iononet is a multi-static cooperative radar network of PRC (Pseudo Random Code) ionosondes designed by INGV to map and study the local variation of the ionosphere, its electron density profiles and the radio propagation parameters to valuate TEC anomalies and generate alerts for disturbed ionospheric conditions. The used ionosondes are bistatic PRC radar transmitting and receiving almost continuous wave. The surveys will allow to map the ionosphere over large regions for the verification of theoretical models of the global ionosphere and local disturbed ionospheric conditions, and to investigate possible ionosphere- lithosphere coupling phenomena. completed Zirizzotti, Achille Istituto Nazionale di Geofisica e Vulcanologia - INGV achille.zirizzotti@ingv.it https://orcid.org/0000-0001-7586-9219 ORCID pointOfContact continual https://data.ingv.it/dataset/cover/1102.jpg thumbnail image/jpeg EU open data European Spatial scope 2019-05-22 publication SCIENCE.natural and applied sciences.earth sciences EuroVoc 2026-05-04T16:04:21 publication Ionogramm Binary data theme otherRestrictions Creative Commons Attribution 4.0 International (CC BY 4.0) otherRestrictions no limitations to public access http://publications.europa.eu/resource/authority/licence/CC_BY unclassified 1000 eng utf8 Europe Europe 28.00 45.00 33.00 72.00 2023-03-28 90000 1500000 Istituto Nazionale di Geofisica e Vulcanologia (INGV) ufficiogestionedati@ingv.it http://www.ingv.it distributor http://iononet.ingv.it/ WWW:LINK-1.0-http--link other homepage accessPoint dataset m 1 Commission Regulation (EU) No 1089/2010 of 23 November 2010 implementing Directive 2007/2/EC of the European Parliament and of the Council as regards interoperability of spatial data sets and services 2010-12-08 Publication This data set is conformant with the INSPIRE Implementing Rules for the interoperability of spatial data sets and services true Oblique surveys involve the placement of TX and RX in different points, even thousands of kilometers away. Iononet is a network of severall transmitters and receivers ionosondes sincronized to work at the same time. The PRC ionosondes have been built using Software Defined Radio (SDR) devices that act as transmitter or receiver of the Radio Frequency (RF) signals. They generate all the signals necessary for the operation of the ionosondes such as the GPS signals acquisition used for time synchronization, the triggering of the RF power amplifier for long distance sounding, and the antennas switches. The SDR device is able to convert into an RF signal a pseudo random numerical sequence generated by a Personal Computer (PC) or receive and convert the RF antenna signals into a pseudo random numerical sequence on the PC The receiving PRC ionosonde, placed at one of the ionospheric observatory, allows receiving and detecting at the same time the pseudo random coded signal transmitted contemporarily from different ionosondes, multiplying the observation possibilities of the ionosphere from different directions. It is possible to use the code with different random seed (used as station identifier parameter) at the transmitting ionosondes and using a precise time synchronization between transmitting and receiving ionosondes; the high precision is obtained using a GPS Disciplined Oscillator (GPSDO).