390ff9fa-983b-42b2-9826-ab26539d15bc eng c9456f9e-19b6-4d20-bd9b-c8b8c5571ccb Ev-K2-CNR +39 035 3230511 +39 035 3230551 Via San Bernardino 145 Bergamo BG 24126 Italy metadata@evk2cnr.org http://www.evk2cnr.org 2025-02-24T09:20:15 ISO 19115:2003/19139 1.0 13 WGS 84 (EPSG:4326) EPSG 7.4 Forni Air Temperature 2011-03-30T17:51:00 At the Forni AWS the DMA570 Lsi-Lastem Thermohygrometer is mounted on a 2 m pole. It is a probe for measuring air temperature and air relative humidity with replaceable sensitive element for simplify calibration and maintenance. The DMA570 sensor measures: -air temperature[°C]; - relative humidity[%]. Ev-K2-CNR +39 035 3230511 +39 035 3230551 Via San Bernardino 145 Bergamo BG 24126 Italy evk2cnr@evk2cnr.org http://www.evk2cnr.org/ Guglielmina Diolaiuti Department of Earth Science "Ardito Desio" +39 0250315494 Via Mangiagalli 34 Milano MI 20133 Italy guglielmina.diolaiuti@unimi.it https://geoportal.mountaingenius.org/geonetwork/srv/eng/resources.get?uuid=390ff9fa-983b-42b2-9826-ab26539d15bc&fname=logoSHAREnuovo_s.png thumbnail png https://geoportal.mountaingenius.org/geonetwork/srv/eng/resources.get?uuid=390ff9fa-983b-42b2-9826-ab26539d15bc&fname=logoSHAREnuovo.png large_thumbnail png thermal power plant GEMET SHARE Network Station High Altitude CEOP glacier cryosphere micro-meteorological parameters climate natural areas ecosystems landscape research Forni Glacier Italy Stelvio National Park Alps Ortles-Cevedale group No conditions apply eng climatologyMeteorologyAtmosphere environment geoscientificInformation 6.62397 18.5144 36.6492 47.0946 WMO (1992) defines air temperature as “the temperature indicated by a thermometer exposed to the air in a place sheltered from direct solar radiation”. Although this definition cannot be used as the definition of the thermodynamic quantity itself, it is suitable for most applications. At the Forni AWS the DMA570 Lsi-Lastem Thermohygrometer is mounted on a 2 m pole. It is a probe for measuring air temperature and air relative humidity with replaceable sensitive element for simplify calibration and maintenance. LSI-Lastem supplies a precise and reliable set of probes, suitable for a continuous measurement in severe environments, in presence of deep thermal and hygrometric ranges with high sun radiant heat. An important feature of this set of sensor is that the thermohygrometric sensitive element is easily replaceable, in order to have a simple and rapid ordinary maintenance and avoiding calibration. The Thermohygrometer has supported a considerable improvement, owing to a deep technical and styling development process: a fan ensures a continuos air change around the sensor in order to eliminate temperature fault caused by radiant heat. For temperature: Range -30.+70°C Sensitive element Pt100 1/3 DIN-B Accuracy ± 0,1°C (0°C) Hysteresis&Repeatability na Resolution 0,025°C Long term stability -0.04% (after 5 years at 200°C) Calibration uncertainty 0,1°C Response time (T63) Wind speed 0,3-0,5 m/s: 80sec Radiation shield efficiency with respect to forced ventilation sensor (wind 0,5m/s, rad.800 W/m2): +0,6°C For relative humidity: Range: Nom.0..100%, Eff.10..98% Sensitive element Capacitive Accuracy 2,5% (11-90%) 0,6°C (20°C, 50%RH) Hysteresis&Repeatability 0,5% Resolution 0,2% Long term stability -2%/year (at 75%RH) n.a. Calibration uncertainty 0,1°C 1,5% na Response time (T63) Wind speed 0,3-0,5 m/s: 80sec Radiation shield efficiency with respect to forced ventilation sensor (wind 0,5m/s, rad.800 W/m2): n.a. General characteristic: Ventilation: Natural Electric output Jumper locally selectable 2 x 0-20 mA, 4-20 mA, 0-5 V, 1-5 V. 60-300 mV Output signals Output n.1: temperature. Output n.2: RH% or dew point (default RH%) Operating temperature -30°+70°C Sampling rate 1 sec. (default) PC programmable 1..300 sec. N°acquisitions for mobile average calculation: N°1 (default), PC programmable 1..20 acquisitions Load resistance (mA output): DMA570 300 Ohm No conditions apply