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SNOWRADIANCE MEASUREMENT CAMPAIGN IN MARCH 2009
SnowRadiance measurement campaign in 16.-20. March takes place in Lake Orajärvi in Sodankylä. The campaign focuses on measuring the variation of snow reflectance in sub satellite pixel scale. This is an ESA funded project of Finnish Meteorological Institute, Brockmann Consult, University of Bremen and University of Berlin. |
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SNORTEX MEASUREMENT CAMPAIGN IN SPRING 2009
Snortex (Snow Reflectance and Transition Experiment) campaign continues in the Arctic Research Centre. In spring 2008 we had a succesful measurement campaign of the reflectance properties of snow in visible and UV wavelengths using helicopter borne instruments. From March to May 2009 the helicopter flights and ground-based reference measurements of snow properties are again conducted in Sodankyla. The purpose of the campaign is to get accurate data of the albedo of snow-covered boreal forest, which is underestimated in the current weather prediction models. The albedo is the measure of how much of the incident solar radiation is reflected back to space. The part that is not reflected is absorbed as heat into the atmosphere and ground. |
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100 YEARS OF CONTINUOUS WEATHER OBSERVATIONS IN SODANKYLA IN OCTOBER 2008
Continuous record of surface weather observations at Sodankyla started in year 1908. This is one of the longest data series from the northern hemisphere high latitudes. Clearly temperatures in this region have been rising during the recent decades, and the warming has been increasing especially during the last decade. The surface measurements at Sodankyla are coordinated by the Arctic Research of the Finnish Meteorological Institute (FMI-ARC). The activities of the site are related e.g. to the Global Atmosphere Watch (GAW) network of WMO, and to the Long Term Ecological Research (LTER) activities coordinated in Finland by the Finnish Environment Institute (SYKE). Currently, FMI-ARC receives processes and delivers MODIS and OMI data from NASA EOS Terra, Aqua and Aura satellites. FMI-ARC also facilitates ESA Envisat GOMOS ozone monitoring instrument's data processing and satellite data archives related to EUMETSAT O3SAF. The measurements and research at FMI-ARC are important to understand and predict the climate change. The talks at the seminar addressed different aspects of the climate change research. Agenda of the day: 09:00 Tilaisuuden avaus Lapin ilmatieteellisen tutkimuskeskuksen johtaja Prof. Jouni Pulliainen, 09:05 Paajohtaja Prof. Petteri Taalas, "Ilmaston muutos; uhka ja mahdollisuus", 09:30 Prof. Markku Rummukainen, SMHI, "Meillakin muuttuu - alueellinen ilmastonmuutos aikasarjojen ja mallien valossa", 09:50 Prof. John Moore, Arktinen keskus, "Sea level rise over the last 2000 years and prospects for Finland", 10:10 Tri Heikki Tuomenvirta, IL, "Miten Sodankylan aikasarjoja käytetään tutkimuksessa", 10:30 Kahvitauko 10:50 Prof. Timo Vesala, HY, "Kasvihuonekaasut ja biosfaarivuorovaikutukset", 11:10 Prof. Risto Hillamo, IL, "Ilmakehan aerosolihiukkaset - monimutkainen ilmastonmuutostekija", 11:30 Dr. William Lahoz, NILU, "Data assimilation: adding value to weather and climate models", 11:50-13:20 Lounas ja "Site tour" 13:20 Dos. Bertel Vehvilainen, HY, "Ilmastonmuutoksen vaikutus Suomen vesivaroihin ja tulviin", 13:40 Prof. Erkki Kyrola, "Pelastuuko otsonikerros?" 14:00 Prof. Jouni Pulliainen, IL, "Maanpinnalta ja avaruudesta: Lapin ilmatieteellisen tutkimuskeskuksen uudet projektit", 14:30 Kahvitauko 14:50 Prof. Tauno Turunen, SGO, Sodankylan observatoriotoiminta: 100 vuotta kumppanuutta; 60 vuotta naapuruutta", 15:10 M.SC Juha Vierinen, "Magneettinen hairioindeksi ja kalottialueen lampotilat" 15:20 Tri Rigel Kivi, IL, "Ilmakehan palloluotaukset Sodankylassa", 15:30 Prof. Esko Kyro, IL, "Maailman ilmatieteen jarjeston GRUAN-verkosto, uusi haaste Sodankylan luotaustoiminnalla", 15:40 Tilaisuus paattyy |
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SNORTEX CAMPAIGN IN SODANKYLA IN APRIL 2008
SNORTEX (Snow Reflectance Transition Experiment) measurement campaign gathers scientists from Meteo-France, Finnish Meteorological Institute and Finnish Geodetic Institute to Sodankyla in April 2008. During the campaign, French OSIRIS instrument and several UV and other radiation measurement instruments fly in a helicopter around Tahtela and along road number 4. At the same time, two ground teams measure snow along flight routes and around Sodankyla. The campaign will continue in springs 2009 and 2010. The purpose of the campaign is to develop and enhance satellite snow algorithms. |
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HUTRAD CAMPAIGN IN SODANKYLA IN APRIL 2008
HUTRAD instrument from Helsinki University of Technology measured micorowave radiation from snow in beginning of March 2008 in Tahtela. The instrument was installed on the roof of the satellite reception building. During the one and half weeks we got lots of measurement data from snow in almost all possible weather conditions. Later on, the data will be compared with AMSR-E satellite measurements. |
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OZONE INTERCOMPARISON CAMPAIGN IN SODANKYLA IN FEBRUARY-MARCH 2007
Scientists from the USA, Canada, Belgium, Spain, Finland, France and Norway are making ozone measurements at FMI Sodankyla in February-March 2007 in order to better understand the differences from different groundbased measurement techniques and satellite measurements under wintertime/early spring conditions. Observations made by space based instruments aboard several satellites are tightly integrated into the intercomparison strategy of the mission. The effect of ozone and temperature profile on total column measurements is explored using FMI ozonesonde and NASA LIDAR observations. The scientific findings from this campaign and last year's campaign should improve the absolute accuracy of future ozone observations made under the extreme conditions of high ozone and large solar zenith angles. |
Last updated 12.03.2009