2.4.0 spase://UOLOU/DisplayData/SGO/VLF/Quicklook/PT1M Sodankylä Geophysical Observatory (SGO) VLF Quicklook Spectrogram Plots 2021-09-24T12:31:37 SGO ELF-VLF observations have been carried out only during special campaigns since 1989. In addition to broadband (500Hz-38kHz) VLF campaigns SGO operates different kind of VLF observations including receivers of AARDDVARK (Antarctic-Arctic Radiation belt (Dynamic) Deposition - VLF Atmospheric Research Konsortia), WWLLN (World Wide Lightning Location Network) and AWDA (Automatic Whistler Detector and Analyzer) networks. This archive provides quicklook spectrogram plots of VLF broadband data. These data were taken during observing campaigns spanning the years 1993 through the present. The archive contains plots made from data taken at four different stations many of the plots are from 0 to 16 KHz and span 1 minute, 1hour, or 24 hour duration. The stations, locations and campaign date ranges are: Porojärvi station (69.17° N 21.47° E) Campaigns: 1993-01-14 to 1993-01-29 1993-11-09 to 1993-11-16 1995-11-15 to 1995-11-29 1997-01-06 to 1997-01-12 Kalkkoaivi station (68.73° N 22.11° E) Campaigns: 1994-10-02 to 1994-10-08 Siiselkä station (67.82° N 26.08° E) Campaigns: 2005-09-26 to 2005-10-13 Kannuselehto station (67.74° N 26.27° E) Campaigns: 2006-11-20 2006-11-29 2007-10-08 2007-10-19 2008-02-25 2008-03-04 2011-03-28 2011-04-18 2011-12-08 2012-01-04 2012-05-07 2012-06-06 2012-12-10 2012-12-23 2013-01-02 2013-02-08 2013-03-11 2013-04-19 2013-12-05 2014-01-13 2014-02-26 2014-03-26 2014-11-13 2015-01-09 2015-10-29 2016-01-27 2016-10-07 2017-04-25 2017-09-01 2017-10-18 2017-11-09 2018-04-26 2018-08-29 2019-04-25 2019-09-04 2020-04-24 2020-09-14 2021-04-01 To get access to the numerical data contact Dr. J. Manninen. NOTE: SGO data are available free of charge for scientific and educational purposes. If the data are used for scientific publications, the SGO requires you to contact them in order to discuss under which conditions these data can be published, i.e. whether an acknowledgment of the Sodankylä Geophysical Observatory in your paper is sufficient or whether SGO requires co-authorship. For detailed access to additional data, please contact the SGO office or the observer in charge. See the detailed data license, https://www.sgo.fi/Data/licence.php spase://SMWG/Person/Jyrki.Manninen GeneralContact spase://SMWG/Person/Leonard.N.Garcia MetadataContact spase://SMWG/Person/Eija.Tanskanen TeamLeader SGO Homepage https://www.sgo.fi/index.php spase://SMWG/Repository/SGO https://www.sgo.fi/Data/VLF/VLFData.php The site includes a Campaign browser to select plots as well as access to the directory tree structure. JPEG spase://SMWG/Instrument/SGO/VLF Waves.Passive RadioFrequency PT1M Dynamic Spectrograms Images of the total power VLF dynamic spectrograms taken at the SGO stations. Electromagnetic ACElectricField 0 16 kHz