At the Pyramid station the the CM6B pyranometer, manufactured by Kipp & Zonen is installed. This sensor is a first class pyranometer as defined by the World Meteorological Organization. It is suitable for the measurement of solar irradiance on a plane surface (W/m2). It incorporates a 64-thermocouple sensor, which is rotationally symmetrical, housed under K5 domes. A white screen prevents the body of the pyranometer from heating up. The pyranometer is supplied with a spirit level and screws for accurate levelling. CM6B technical data - Spectral range 305 to 2800 nm (50%points) - Sensitivity 9 to 15 ?V/Wm-2 - Impedance 70 to 100 Ohm - Response time 1/e 5 s, 99 % 55 s - Non-linearity <1.5 % (<1000 W/m 2 ) - Tilt error <1.5 % at 1000 W/m 2 - Operating temperature -40 to +90 °C - Temperature dependence of sensitivity _2 % (-10 to +40 °C) - Maximum irradiance 2000 W/m2 - Directional error < _20 W/m2 at 1000 W/m2 - Weight 0.85 kg - Cable length 10 m
At the AWS Lukla station the DQA035 Lsi-Lastem rain gauge is mounted on a 1,5 m pole. This model of Rain gauge has a 1.000 cmq collector area. The measurement device is composed of a collector cone and a double chamber bascule connected to a magnete that operates one (optional two) reed switch, which generates impulses that can be counted by external meters: each impulse is equal to 0.2 mm of rain (optional from 0.1 to 0.5 mm).
At the AWS Namche station the DQA035 Lsi-Lastem rain gauge is mounted on a 1,5 m mast. This model of Rain gauge has a 1.000 cmq collector area. The measurement device is composed of a collector cone and a double chamber bascule connected to a magnete that operates one (optional two) reed switch, which generates impulses that can be counted by external meters: each impulse is equal to 0.2 mm of rain (optional from 0.1 to 0.5 mm). The mechanical and electrical specifications are: - Collector surface area: 1000 cmq - Collector area diameter: 420 mm - Measurements range: 180 mm/hr - Resolution: o,2 mm/imp. (opt. 0,1; 0,3; 0,4; 0,5; mm/imp.) - Accuracy: 0-1 mm/min: 1% 1-3 mm/min: 2% 3-5 mm/min: 4% 5-10 mm/min: 8% - Contact: 1 reed (opt. N.2 reed) 0,5 A/24V non inductive - Pulse duration: 100 msec.± 5 - Collector cone material: Brass - External housing material: Inox AISI30 - Tipping bucket material: Alluminium - Cable: 10 m - Weight: 6,3 kg - Power supply: /thermocover 100 W, 24 Vca/Va
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 Geothermometer DLA400 Lsi- Lastem for temperature measurement inside soil or on its surface is installed at Pyramid Laboratory Observatory. DLA400 sensor measure up to 50 cm soil depth.
At the Lukla AWS the DMA572 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.
A thermohygrometer DMA570 was installed at Urdukas Station. This sensor is manufactured by LSI-Lastem (Italy).The DMA 570 thermohygrometer is an instrument for measuring temperature and relative humidity and suitable for a continuous measurement in severe environments; in presence of deep thermal and hygrometric ranges with high sun radiant heat.
The DLA400 sensor is manufactured by LSI-Lastem (Italy) and measures up to 50 cm soil depth it can be complete with several accessories: DLA400 ring is used to fix the sensor to the requested deepness.
At the Pyramid Laboratory Observatory 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 HMS 9000, developed by SDEC, France, is a soil moisture sensor for the measurement of water content in soil, based on the principle of the electrical capacity measurement.