{ "@context": "https://w3id.org/ro/crate/1.1/context", "@graph": [ { "@id": "./", "@type": "Dataset", "about": [ { "@id": "http://dd.eionet.europa.eu/vocabulary/eurostat/fos07/FOS1" } ], "author": [ "jorgen.berge@uit.no", "stephen.grant@ntnu.no", "rune.bjorgum@ntnu.no", "jhcohen@udel.edu", "david.mckee@strath.ac.uk", "geir.johnsen@ntnu.no", "artur.zolich@ntnu.no", "tomasz.p.kopec@uit.no", "daniel.vogedes@uit.no", "pal.g.ellingsen@uit.no" ], "cite-as": "Berge J\u00f8rgen and Grant Stephen and Bj\u00f8rgum Rune and Cohen Jonathan H. and McKee David and Johnsen Geir and Zolich Artur and Kopec Tomasz Piotr and Vogedes Daniel Ludwig, Time series (2020) of irradiance in the PAR (photosynthetically active radiation) region measured under the dome of a light observatory in the Arctic (Ny-\u00c5lesund, Svalbard, Norway) derived from an USSIMO spectroradiometer, NIRD RDA, 2025. https://doi.org/10.11582/2021.00043.", "contentLanguages": "https://iso639-3.sil.org/code/eng", "datePublished": "2025-06-14", "description": "UiT\u00a0The Arctic University of Norway (UiT) and the Norwegian University of Science and Technology (NTNU) established a light observatory at Kings Bay, Ny-\u00c5lesund\u00a0(Svalbard, Norway) in January 2017. The observatory consists of an array of light sensors including an\u00a0all sky\u00a0camera. It is located outside the settlement of Ny-\u00c5lesund, approximately 1 km N-NW of the airport towards\u00a0Brandalspynten. The array of sensors is mounted on a tripod under a transparent dome. This dataset contains the data of the hyperspectral radiometer USSIMO\u00a0(In-situ Marine Optics, Perth, WA, Australia), converted to E(PAR) by the following equation:\u00a0PAR is approximated as an integral of\u00a0micromolespersec=(uirr/(h*c/(lambda*1e-9)))/microavo\u00a0for wavelengths(lambda) in range from 400 to 700nm, where:\u00a0uirr\u00a0= USSIMO irradiance for wavelength equal to lambda, h=6.63e-34 [Js], c=3.00e+08 [m/s],\u00a0microavo=6.022e17.\u00a0The sensor\u00a0is equipped with a Zeiss MMS1 UV-VIS NIR detector with National Institute of Standards and Technology, USA traceable radiometric calibration between 380 and 900 nm. This instrument is used for time-series measurement of down-welling spectral irradiance in energy Wm-2 nm-1. Spectral resolution is 10 nm (3.3 nm pixel spacing) and a cosine-corrected polytetrafluoroethylene (PTFE) light diffusor with cosine error: <3% (0 - 60\u00b0), <10% (60 - 87.5\u00b0), is fitted. The device acquired measurements with a\u00a016 bit\u00a0analogue to digital converter.\u00a0It samples continuously internally. Integration time is controlled by the sensor depending on the light intensity, with a maximum of 6 seconds. Actual integration time is stored with the data in each sample.\u00a0The sensor output is saved on a PC with custom software which records 30 seconds of output data every 29:30 min. The number of samples collected in that period depends on the USSIMO integration time.\u00a0The sensor is equipped with a pitch and roll sensor which is used to ensure that the spectroradiometer remains in the fixed position throughout the time-series acquisition.\u00a0For re-use of the data, please refer to the dataset and the original publication.\u00a0\u00a0This is the 2020 dataset.\n", "identifier": "https://doi.org/10.11582/2021.00043", "keywords": [ "Optics", "USSIMO_epar_2020" ], "license": { "@id": "https://creativecommons.org/licenses/by/4.0/" }, "name": "Time series (2020) of irradiance in the PAR (photosynthetically active radiation) region measured under the dome of a light observatory in the Arctic (Ny-\u00c5lesund, Svalbard, Norway) derived from an USSIMO spectroradiometer", "publisher": { "@id": "https://wikidata.org/Q12008197" }, "temporalCoverage": "2020-01-01T01:00:00.000Z/2020-12-31T23:00:00.000Z", "themes": [ { "@id": "https://apps.usgs.gov/thesaurus/term-simple.php?thcode=15&code=002" } ], "title": "Time series (2020) of irradiance in the PAR (photosynthetically active radiation) region measured under the dome of a light observatory in the Arctic (Ny-\u00c5lesund, Svalbard, Norway) derived from an USSIMO spectroradiometer", "url": "https://doi.org/10.11582/2021.00043", "version": 1 }, { "@id": "ro-crate-metadata.json", "@type": "CreativeWork", "about": { "@id": "./" }, "conformsTo": { "@id": "https://w3id.org/ro/crate/1.1" }, "creator": { "@id": "https://wikidata.org/Q12008197" } }, { "@id": "https://creativecommons.org/licenses/by/4.0/", "@type": "CreativeWork", "description": "Creative Commons Attribution 4.0", "name": "CC-BY-4.0" }, { "@id": "jorgen.berge@uit.no", "@type": "Person", "familyName": "Berge", "givenName": "J\u00f8rgen" }, { "@id": "stephen.grant@ntnu.no", "@type": "Person", "affiliation": { "@id": "05xg72x27" }, "familyName": "Grant", "givenName": "Stephen" }, { "@id": "rune.bjorgum@ntnu.no", "@type": "Person", "affiliation": { "@id": "05xg72x27" }, "familyName": "Bj\u00f8rgum", "givenName": "Rune" }, { "@id": "jhcohen@udel.edu", "@type": "Person", "familyName": "Cohen", "givenName": "Jonathan H." }, { "@id": "david.mckee@strath.ac.uk", "@type": "Person", "familyName": "McKee", "givenName": "David" }, { "@id": "geir.johnsen@ntnu.no", "@type": "Person", "affiliation": { "@id": "05xg72x27" }, "familyName": "Johnsen", "givenName": "Geir" }, { "@id": "artur.zolich@ntnu.no", "@type": "Person", "affiliation": { "@id": "05xg72x27" }, "familyName": "Zolich", "givenName": "Artur" }, { "@id": "tomasz.p.kopec@uit.no", "@type": "Person", "familyName": "Kopec", "givenName": "Tomasz Piotr" }, { "@id": "daniel.vogedes@uit.no", "@type": "Person", "familyName": "Vogedes", "givenName": "Daniel Ludwig" }, { "@id": "https://wikidata.org/Q12008197", "@type": "Organization", "name": "NIRD RDA", "url": "https://wikidata.org/Q12008197" } ] }