Forni Combined wind speed-direction sensor
|
|
Citation proposal
(2011) . Forni Combined wind speed-direction sensor. https://geoportal.mountaingenius.org/geonetwork/srv/api/records/a0915d40-82b5-40b3-8a32-6c3e90dfa139 |
Simple
- Date ( Publication )
- 2011-03-30T17:51:00
- Purpose
- The objectives of the research are in fact different. The first consists in observing and monitoring the Forni glacier. The second in the identification and characterization of the transport of polluted air masses and air masses rich in atmospheric particles, or dust, anthropogenic and natural reach the site of measurement. Third, the assessment of the deposition of particulate air pollution on the seasonal melting of snow and ice energy balance and mass of glaciers.In particular, this station is located in the Glacial Ablation area and permits to measure both the winter accumulation and the thermal conditions and in-coming/out-coming energetic fluxes that rules the losses of glacial masses during the summer period.
- Status
- Historical archive
Point of contact
Point of contact
- Maintenance and update frequency
- As needed
- GEMET ( Theme )
-
- thermal power plant
- Keywords
-
- SHARE , Network , Station , High Altitude
- Keywords
-
- CEOP
- Keywords ( Theme )
-
- glacier , cryosphere , micro-meteorological parameters , climate , natural areas , ecosystems , landscape , research
- Keywords ( Place )
-
- Forni Glacier , Italy , Stelvio National Park , Alps , Ortles-Cevedale group
- Use limitation
- No conditions apply
- Access constraints
- Copyright
- Other constraints
- Metadata language
- eng
- Character set
- UTF8
- Topic category
-
- Climatology, meteorology, atmosphere
- Environment
- Geoscientific information
))
- Supplemental Information
- Reference system identifier
- EPSG / WGS 84 (EPSG:4326) / 7.4
- Topology level
- Geometry only
- Geometric object type
- Point
- Geometric object count
- 13
- Hierarchy level
- Series
- Statement
-
At the AWS Forni station the CombiSD DNA022 Lsi-Lastem combined wind speed-direction sensor is mounted on a 5m pole.
The CombiSD sensor includes, in a single apparatus, the both transducers for measuring wind speed and wind direction. Its use simplifies the installation and the plant design in respect of the sensors with separate measurements plus giving some other advantages being smaller, lighter and cheaper. The CombiSD DNA022: sensor has a direct signal output. Frequency (Hz) for wind speed and resistance (Ohm) for wind direction. the CombiSD has low power consumption, it can be used in systems with small energy availability.
The technical characteristics are:
- Principle of operation: 3 cups and vane anemometer
- Speed sensor: Optoelectronic disk
- Direction sensor: 2000 Ohm wire potentiometer / Positioning Hall effect sensor
- Housing: Heavy gauge anodised aluminium
- Shaft carriers: Low-torque stainless steel bearings
- Protection (vertical position): IP65
- Mechanical mounting: On 48 50 mm diameter mast
- Electrical outlet terminators: IP65 watertight connector
- Weight (instrument with rotors): 950 gr.
The Physical and operational specification are:
- damage threshold > 75 m/s
- operating temperature: -30°+70°C
The speed measures are specified by:
- Measurement range: 0-60 m/s (using transfer function)
- Threshold: 0,21 m/s
- Response time (63% at 5 m/s): 0.8 s
- Distance constant (delay distance) at 5 m/s: 4 m
- Resolution (integration time=1s): 0.05 m/s
- Accuracy & Linearity: 0,1 m/s+1%VL (readout), if connected to LASTEM data loggers.
The direction measures are specified by:
- Measurement range: 0 ÷ 360
- Threshold: 0,15 m/s
- Response time (at 5 m/s): 0,26 s
- Delay distance (at 5 m/s): 1,32 m
- Damping coefficient (VDI3786): 0,21
- Transfer function: Dir(°)= 355 x R(Ohm)/2000
- Resolution: 0,1
- Accuracy: 1% FS (Full scale)
- Integral linearity: 0,5%
gmd:MD_Metadata
- File identifier
- a0915d40-82b5-40b3-8a32-6c3e90dfa139 XML
- Metadata language
- eng
- Character set
- UTF8
- Parent identifier
- 5532e77c-dcb4-4c73-8d09-1cac44c1471e
- Hierarchy level
- Series
- Date stamp
- 2025-02-24T09:15:24
- Metadata standard name
- ISO 19115:2003/19139
- Metadata standard version
- 1.0
Point of contact
Overviews
Provided by
