https://socictopen.socict.org/files/original/4ead6d4112d168ed8b2b8d382305304e.pdf 751d6aae39f60be8943cc4988f46c40a Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Title A name given to the resource Agricultura sostenible Description An account of the resource Dominio científico: Agricultura sostenible Text A resource consisting primarily of words for reading. Examples include books, letters, dissertations, poems, newspapers, articles, archives of mailing lists. Note that facsimiles or images of texts are still of the genre Text. Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Title A name given to the resource The Great Aurora of January 1770 observed in Spain Creator An entity primarily responsible for making the resource V. M. S. Carrasco, E. Aragonès, J. Ordaz, J. M. Vaquero, J. M. Vaquero Description An account of the resource An analysis is made of the records made by Spanishobservers of a notable aurora on 18 January 1770 in order to study thecharacteristics of this event. The records indicate that the phenomenon wasobserved in both continental and insular territories of Spain, in particularat San Cristóbal de la Laguna, Cádiz, Córdoba, Badajoz,Valencia, Castellón, Madrid, Barcelona, and Gerri de la Sal. The mostequatorward observational site was San Cristóbal de la Laguna(28.48°&thinsp;N, 16.32°&thinsp;W) in the Canary Islands. In general,the descriptions put its duration from sunset to midnight, but the observersfrom Córdoba and Madrid report the aurora as being visible during thelast hours of the night, and it was even observed the following day atCastellón. All the observers described the aurora as red in colour,while white and ash colours were also reported at Córdoba and Gerri dela Sal. The brightness and shape of auroral display changed over time.Calculations of the geomagnetic latitudes of the observation locations gaveSan Cristóbal de la Laguna as the southernmost (26°&thinsp;N) andGerri de la Sal the northernmost (35°&thinsp;N) and indicate this aurorawas observed over a wide range of abnormally low latitudes for such aphenomenon. Solar activity around the event was high, with the astronomerHorrebow registering 10 sunspot groups on that date (18 January 1770). Date A point or period of time associated with an event in the lifecycle of the resource 2018 Identifier An unambiguous reference to the resource within a given context 10.5194/hgss-9-133-2018 Source A related resource from which the described resource is derived History of Geo- and Space Sciences Publisher An entity responsible for making the resource available Copernicus Publications Coverage The spatial or temporal topic of the resource, the spatial applicability of the resource, or the jurisdiction under which the resource is relevant Science, Geology, Physics, Geophysics. Cosmic physics, Dynamic and structural geology Relation A related resource <a href="https://www.hist-geo-space-sci.net/9/133/2018/hgss-9-133-2018.pdf" target="_blank" rel="noreferrer noopener">https://www.hist-geo-space-sci.net/9/133/2018/hgss-9-133-2018.pdf</a>