Changri Nup Combined wind speed-direction sensor

The DNA022 Lsi-Lastem combined wind speed-direction sensor is mounted on a 5m pole on Changri Nup station.

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%

 
Citation proposal
(2011) . Changri Nup Combined wind speed-direction sensor. https://geoportal.mountaingenius.org/geonetwork/srv/api/records/e0fd78b3-53a0-4df4-b865-7779def36c38
 

Simple

Date ( Publication )
2011-05-22T08:00:00
Edition
Purpose

The purpose of this resource in Changri Nup station is to acquire data on:

- wind speed

- wind direction

Status
Completed

  Point of contact

  +39 035 3230551 
Website
http://www.evk2cnr.org/  
Maintenance and update frequency
As needed
Keywords ( Theme )
  • NEXTDATA
Keywords ( Theme )
  • NEXTDATA
Keywords ( Theme )
  • NEXTDATA
Keywords ( Theme )
  • NEXTDATA
Keywords ( Theme )
  • SHARE , network
Keywords ( Place )
  • Changri Nup Glacier, Himalaya, Nepal
GEMET themes ( Theme )
  • air , climate , natural areas, landscape, ecosystems , research , pollution
Keywords ( Theme )
  • NEXTDATA
Keywords ( Theme )
  • NEXTDATA
Keywords ( Theme )
  • NEXTDATA
Keywords ( Theme )
  • SHARE , network
Keywords ( Place )
  • Changri Nup Glacier, Himalaya, Nepal
GEMET themes ( Theme )
  • air , climate , natural areas, landscape, ecosystems , research , pollution
Keywords ( Theme )
  • NEXTDATA
Keywords ( Theme )
  • NEXTDATA
Keywords ( Theme )
  • NEXTDATA
Keywords ( Theme )
  • SHARE , network
Keywords ( Place )
  • Changri Nup Glacier, Himalaya, Nepal
GEMET themes ( Theme )
  • air , climate , natural areas, landscape, ecosystems , research , pollution
Keywords ( Theme )
  • NEXTDATA
Keywords ( Theme )
  • NEXTDATA
Keywords ( Theme )
  • NEXTDATA
Keywords ( Theme )
  • SHARE , network
Keywords ( Place )
  • Changri Nup Glacier, Himalaya, Nepal
GEMET themes ( Theme )
  • air , climate , natural areas, landscape, ecosystems , research , pollution
Use limitation
Data Sharing and Publication Policy at DISTRIBUTION SECTION
Access constraints
Intellectual property rights
Other constraints
Spatial representation type
Vector
Character set
UTF8
Topic category
  • Climatology, meteorology, atmosphere
  • Geoscientific information
  • Environment
N
S
E
W


Reference system identifier
EPSG / WGS 84 (EPSG:4326) / 7.4
Topology level
Geometry only
Geometric object type
Point
Geometric object count
15
OnLine resource
gn:share_station  

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OnLine resource
https://geoportal.mountaingenius.org/geonetwork/srv/api/records/e0fd78b3-53a0-4df4-b865-7779def36c38/attachments/Data%20Usage%20Policy.pdf  
Hierarchy level
Series
Statement

gmd:MD_Metadata

File identifier
e0fd78b3-53a0-4df4-b865-7779def36c38   XML
Metadata language
eng
Character set
UTF8
Parent identifier
0c61b468-2a09-434b-b9cb-620c20f1868f
Hierarchy level
Series
Hierarchy level name
Date stamp
2025-02-21T16:33:53
Metadata standard name
ISO 19115:2003/19139
Metadata standard version
1.0

  Point of contact

  +39 035 3230551 
Website
http://www.evk2cnr.org  
Dataset URI
 
 

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