bf13d759-c3a5-4457-82eb-ad96cfa6506c eng 1802972c-49fa-4ddc-9622-4b50b858d7fd Ev-K2-CNR +39 035 3230511 +39 035 3230551 Via San Bernardino 145 Bergamo BG 24126 Italy metadata@evk2cnr.org http://www.evk2cnr.org 2025-02-07T16:41:17 ISO 19115:2003/19139 1.0 1 WGS 84 (EPSG:4326) EPSG 7.4 Pyramid Snow Depth Sensor 2011-03-30T17:51:00 The USH-8 Ultrasonic Snow Depth Sensor by SOMMER is ideal for the reliable measurement of snow-depth in extreme conditions. The sensor’s principle of measurement deals with the transit-time measurement of an ultrasonic pulse. This sensor garamtees: - precise measurement of snow-depth in extreme conditions - additional air-temperature detection feature to measure snow-depth over a wide temperature range - the powerful ultrasonic impulses emitted by this sensor deliver reliable readings even when there is a difficult reflection ratio, as is the case with fresh snow. 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/api/records/bf13d759-c3a5-4457-82eb-ad96cfa6506c/attachments/evk2cnr__.png evk2cnr__.png https://geoportal.mountaingenius.org/geonetwork/srv/api/records/bf13d759-c3a5-4457-82eb-ad96cfa6506c/attachments/evk2cnr__.png evk2cnr__.png thermal power plant GEMET SHARE Network Station High Altitude Nepal Lobuche Khumbu Valley Sagarmatha National Park AWS snow depth No conditions apply climatologyMeteorologyAtmosphere environment geoscientificInformation 80.0522 88.1946 26.3684 30.4247 http://www.eol.ucar.edu/projects/ceop/dm/insitu/sites/ceop_ap/Himalayas/Pyramid/ WWW:LINK-1.0-http--partners Himalayas Reference Site Pyramid Station https://geoportal.mountaingenius.org/portal/index.php/data/ WWW:LINK-1.0-http--link https://geoportal.mountaingenius.org/geonetwork/srv/api/records/bf13d759-c3a5-4457-82eb-ad96cfa6506c/attachments/Data%20Usage%20Policy.pdf WWW:DOWNLOAD-1.0-http--download The USH-8 Ultrasonic Snow Depth Sensor by SOMMER is ideal for the reliable measurement of snow-depth in extreme conditions. The sensor’s principle of measurement deals with the transit-time measurement of an ultrasonic pulse. The sensor transmits several energy-charged pulses to the snow cover and subsequently receives its reflected signals. Based upon the required transit time of the ultrasonic signals, the USH-8 sensor calculates the current snow depth. The processing time of the ultrasonic pulses here is enormously influenced by the air temperature. For this reason, the snow depth sensor also possesses integrated temperature compensation. This takes into account the influence of the air temperature on the processing time of the ultrasonic signals, in the calculation of the snow depth. The calculation takes place in the sensor, so that the output signal provides the already converted snow depth. USH-8 Specifications: Snow Depth Measurement Range of measurement: 0 to 8 m Minimum distance to the maximum expected snow depth: 1 m Accuracy: 0,1 % (FS) Resolution 1 mm Principle of measurement: Ultrasonic (Frequency 50 kHz; Angle of reflected beam 12°) Integrated Compensation of the Air Temperature Temperature sensor: Integrated air-temperature sensor in self-venting radiation shield Range of measurement: -35 to 60 °C Resolution: 0,1 °C Non-linearity: < 0,15 % Interfaces Analogue: Snow depth measurement 0/4 - 20 mA signal (configurable) Resolution: 12 Bit Max. load: 300 OHM Digital: Snow depth measurement; air temperature; quality flag RS 232; serial interface Protocol: Various ASCII formats No conditions apply