https://www.socictopen.socict.org/files/original/727eb87a001150e4702d3e71e3a7487c.pdf 585d45cbe4caf51b74f41c65f44d42d5 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 Solar observations at the Coimbra Astronomical Observatory Creator An entity primarily responsible for making the resource Lourenço Ana, Carvalho Sara, Barata Teresa, Garcia Adriana, Carrasco Víctor, Peixinho Nuno Description An account of the resource In 2020, the Geophysical and Astronomical Observatory of the University of Coimbra will celebrate the 95th anniversary of its first spectroheliographic observation. Keeping a daily service of solar observations since then, making almost a century, led to one of the largest continuous solar data collections in the world. This long–term solar database is essential for studies where solar activity is involved. This work reviews the development of synoptic observations made at the Observatory of Coimbra since 1925 and presents a summary of some of the principal stages of the Observatory’s history since its founding in 1772. We refer the main technical improvements and present some perspectives for the near future. One of the most significant upgrades was the installation of a CCD camera in 2007. The transition from photographic emulsion to digital recording methods allowed the development of image analysis algorithms to process solar images and improved data sharing with other institutions. This upgrade enabled also to carry–out modern climate and space weather studies. This valuable advancement makes it possible to create a new catalogue of solar observations to be published in the future. Date A point or period of time associated with an event in the lifecycle of the resource 2019 Subject The topic of the resource automatic detection, historic solar observations, solar phenomena, spectroheliograms Identifier An unambiguous reference to the resource within a given context 10.1515/astro-2019-0015 Source A related resource from which the described resource is derived Open Astronomy Publisher An entity responsible for making the resource available De Gruyter Coverage The spatial or temporal topic of the resource, the spatial applicability of the resource, or the jurisdiction under which the resource is relevant Astronomy Relation A related resource <a href="https://doi.org/10.1515/astro-2019-0015" target="_blank" rel="noreferrer noopener">https://doi.org/10.1515/astro-2019-0015</a>