South Col Wind speed
During the 2011 expedition, a prototype replaces the sensor installed during 2008 expedition.
A prototype (LSI-Lastem) to support with other two sensors manufactured by VAISALA: WMT700 and WA15D7B.
The WA15 is based on accurate sensors installed on a large crossarm. It is designed for demanding wind measurement applications.
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Citation proposal
(2011) . South Col Wind speed. https://geoportal.mountaingenius.org/geonetwork/srv/api/records/f2a9cc07-3529-48b8-bec7-1ed383a7536d |
INSPIRE
Identification
- File identifier
- f2a9cc07-3529-48b8-bec7-1ed383a7536d XML
- Hierarchy level
- Series
Online resource
- Protocol
- WWW:DOWNLOAD-1.0-http--download
Resource identifier
Encoding
Projection
- code
- WGS 1984(EPSG:4326)
Classification of data and services
- Topic category
-
- Climatology, meteorology, atmosphere
- Environment
- Geoscientific information
Classification of data and services
Coupled resource
Coupled resource
Classification of data and services
Coupled resource
Coupled resource
Keywords
- GEMET ( Theme )
-
- thermal power plant
Other keywords
- Keywords
-
- SHARE , Network , Station , High Altitude
- Keywords ( Place )
-
- Nepal , Mt. Everest - South Col , Himalaya
- Keywords ( Theme )
-
- air , research , pollution , ecosystems , landscape , natural areas , climate
- Keywords ( Theme )
-
- monsoon , subtropical jet stream , stratospheric intrusions , real time
- Keywords ( Theme )
-
- AWS
- Keywords ( Theme )
-
- wind speed , wind direction
Geographic coverage
))
Temporal reference
Temporal extent
Temporal extent
- Date ( Publication )
- 2011-03-30T17:51:00
Quality and validity
- Lineage
-
The WA15 is based on accurate sensors installed on a large crossarm. It is designed for demanding wind measurement applications.
Three lightweight, conical cups mounted on the cup wheel, provide excellent linearity over the entire operating range, up to 75 m/s.
A wind-rotated chopper disc attached to the shaft of the cup wheel cuts an infrared light beam 14 times per revolution.
This generates a pulse output from the phototransistor.
The output pulse rate is directly proportional to wind speed (e.g. 246 Hz = 24.6 m/s).
However, for the highest accuracy, the characteristic transfer function should be used to compensate for starting inertia.
WA15 Technical characteristic:
Wind speed
Measurement range: 0.4 to 75 m/s
Starting threshold < 0.5 m/s
Distance constant 2.0 m
Characteristic transfer function U = 0.328 + 0.101 × R
(where U = wind speed [m/s], R = output pulse rate [Hz])
Accuracy (within range 0.4 to 60 m/s)
with characteristic transfer function ± 0.17 m/s **
with transfer function U = 0.1 × R ± 0.5 m/s***
Wind direction
Measurement range at wind speed 0.4 to 75 m/s 0 to 360°
Starting threshold: <0.4 m/s
Resolution: ±2.8°
Damping ratio: 0.19
Overshoot ratio: 0.55
Delay distance: 0.4 m
Accuracy better than ±3
Conformity
Conformity
Conformity
Conformity
Conformity
Conformity
Restrictions on access and use
- Access constraints
Restrictions on access and use
Responsible organization (s)
Contact for the resource
- Organisation name
- Ev-K2-CNR
- evk2cnr@evk2cnr.org
- Organisation name
- Institute of Atmospheric Sciences and Climate (ISAC) - CNR
- p.bonasoni@isac.cnr.it
Responsible organization (s)
Contact for the resource
- Organisation name
- Ev-K2-CNR
- evk2cnr@evk2cnr.org
- Organisation name
- Institute of Atmospheric Sciences and Climate (ISAC) - CNR
- p.bonasoni@isac.cnr.it
Metadata information
Contact for the metadata
- Organisation name
- Ev-K2-CNR
- metadata@evk2cnr.org
- Date stamp
- 2025-02-04T15:49:40
- Metadata language
- eng
- Character set
- UTF8
SDS
Conformance class 1: invocable
Access Point URL
Endpoint URL
Technical specification
Conformance class 2: interoperable
Coordinate reference system
Quality of Service
Access constraints
Limitation
Use constraints
Limitation
Responsible custodian
Contact for the resource
Conformance class 3: harmonized
Overviews
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