23b422ce-c269-40ce-b92c-3d4bee526a57 eng 214ae251-8e1f-47f2-97bc-95c0ee8813aa Ev-K2-CNR +39 035 3230511 +39 035 3230551 Via San Bernardino 145 Bergamo BG 24126 Italy metadata@evk2cnr.org http://www.evk2cnr.org 2011-11-22T17:02:13 ISO 19115:2003/19139 1.0 13 WGS 84 (EPSG:4326) EPSG 7.4 Global radiometer 2011-03-30T17:51:00 In the framework of Ev-K2-CNR / SHARE (Stations at High Altitude for Research on the Environment) project the first permanent Automatic Weather Station (AWS) has been installed in Uganda, on July 18, 2006 in the western part of the Stanley Plateau, the biggest Rwenzori glacial mass. The Project was carried out during the celebration of Mt. Ruwenzori first ascent by Duke of Abruzzi in 1906 . This station has the same technical characteristics of the Ev-K2- CNR networks located in the high altitude regions of Himalaya and Karakorum. The station records continuously measurements of the seven meteorological standard parameters: air temperature, relative humidity, wind speed and direction, atmospheric pressure, global solar radiation and total precipitation. The Rwenzori observations will permit to study physical and dynamical processes at Africa high elevations in the framework of SHARE and GEWEX-CEOP HE programs to improve our understanding of variability and change in hydrological and energy cycles and their role in the climate system. The pyranometer DRA 153 Lsi-Lastem provides continuous measurements of: - global solar radiation (W/m2). Ev-K2-CNR +39 035 3230511 +39 035 3230551 Via San Bernardino 145 Bergamo BG 24126 Italy evk2cnr@evk2cnr.org http://www.evk2cnr.org/ https://geoportal.mountaingenius.org/geonetwork/srv/eng/resources.get?uuid=23b422ce-c269-40ce-b92c-3d4bee526a57&fname=logoSHAREnuovo_s.png thumbnail png https://geoportal.mountaingenius.org/geonetwork/srv/eng/resources.get?uuid=23b422ce-c269-40ce-b92c-3d4bee526a57&fname=logoSHAREnuovo.png large_thumbnail png thermal power plant GEMET SHARE Network Station High Altitude AWS Rwenzori Range Uganda Elena Glacier No conditions apply eng climatologyMeteorologyAtmosphere environment geoscientificInformation -180 180 -90 90 https://geoportal.mountaingenius.org/webapp/srv/en/resources.get?id=106&fname=&access=private WWW:LINK-1.0-http--link SHARE Geonetwork portal https://geoportal.mountaingenius.org/webapp/srv/en/resources.get?id=23471&fname=Global_radiometer_dpa153.pdf&access=private WWW:DOWNLOAD-1.0-http--download Global_radiometer_dpa153.pdf User’s manual Global radiometer (DPA153-554-559, BSR153) https://geoportal.mountaingenius.org/webapp/srv/en/resources.get?id=23471&fname=Chapter_7_Measurement_of_radiation.pdf&access=private WWW:DOWNLOAD-1.0-http--download Chapter_7_Measurement_of_radiation.pdf Guide to Meteorological Instruments and Methods of Observation WMO-No. 8-Chapter 7 :”Measurement of radiation” The LSI pyranometer is an instrument to measure the global sun radiation (direct and diffuse) which reaches the terrestrial surface. With this instrument it is possible to measure not only the global radiation, but also the reflected sun radiation (albedometer) and the diffuse radiation by means of the occultation band. The solarimeter measures radiation values within 300 and 3000 nm, with a visibility of 2? steradians. The element used to for the measurement is a thermopile whose external surface has been darkened with matte black paint C10 Nextel bearing a reflecting power < than 2% (e>0.98) in the spectral area of the sensor. Each radiometer is supplied with a Calibration Report produced by comparison, under the sun (ISO 9847), with a radiometer calibrated at the WRC-PMOD in Davos. (WRC: World Radiation Center; PMOD: Phisikalisch Meteorologisches Observatorium Davos;) Accuracy: an overall uncertainty value is not supplied; there are however many characteristics available according to the classes of the WMO n°8 and ISO 9060. Besides, the uncertainty of this instrument is influenced by the quick temperature changes owing to the intervention of clouds and rain. Re-calibration: It is not necessary to re-calibrate the instrument frequently. It is advisable to re-calibrate the instrument every 2 to 3 years in order to keep calibration uncertainty variations in the range of 5%. No conditions apply