Changri NUp Relative Humidity

At Changri Nup station a DMA 570 thermohygrometer was installed in 2010.

Temperature sensitive element is a thermoresistance Pt100 type while the humidity sensitive element is a

capacitive plate. The sensitive elements are protected from incident solar radiation by a double radiation

shield. Sensors for temperature and relative humidity measurements with radiation shield for

meteorological uses. Sensors are equipped with a microprocessor.

 
Citation proposal
(2011) . Changri NUp Relative Humidity. https://geoportal.mountaingenius.org/geonetwork/srv/api/records/b822ed10-a9dd-46ea-9a6a-b05e0b9c8218
 

Identification

Data identification

Citation

Date ( Publication )
2011-03-30T17:51:00
Purpose

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

- air temperature

- relative Humidity

Status
Completed

  Point of contact

  +39 035 3230551 
Website
http://www.evk2cnr.org/  
Maintenance and update frequency
As needed
GEMET ( Theme )
  • thermal power plant
Keywords
  • SHARE , Network , Station , High Altitude
Keywords ( Place )
  • Changri Nup Glacier , Himalaya , Nepal
Keywords ( Theme )
  • air , pollution , research , ecosystems , landscape , natural areas , climate
Keywords ( Theme )
  • AWS
Keywords ( Theme )
  • air temperature , relative humidity

Legal constraints

Use limitation
No conditions apply
Access constraints
Copyright
Other constraints
Character set
UTF8
Topic category
  • Climatology, meteorology, atmosphere
  • Environment
  • Geoscientific information
N
S
E
W


Supplemental Information
 

Quality

Data quality

Hierarchy level
Series
Statement

For temperature:

Range -30.+70°C

Sensitive element Pt100 1/3 DIN-B

Accuracy ± 0,1°C (0°C)

Hysteresis&Repeatability na

Resolution 0,025°C

Long term stability -0.04% (after 5 years at 200°C)

Calibration uncertainty 0,1°C

Response time (T63) Wind speed 0,3-0,5 m/s: 80sec

Radiation shield efficiency with respect to forced ventilation sensor (wind 0,5m/s, rad.800 W/m2): +0,6°C

For relative humidity:

Range: Nom.0..100%, Eff.10..98%

Sensitive element Capacitive

Accuracy 2,5% (11-90%) 0,6°C (20°C, 50%RH)

Hysteresis&Repeatability 0,5%

Resolution 0,2%

Long term stability -2%/year (at 75%RH) n.a.

Calibration uncertainty 0,1°C 1,5% na

Response time (T63) Wind speed 0,3-0,5 m/s: 80sec

Radiation shield efficiency with respect to forced ventilation sensor (wind 0,5m/s, rad.800 W/m2): n.a.

General characteristic:

Ventilation: Natural

Electric output Jumper locally selectable 2 x 0-20 mA, 4-20 mA, 0-5 V, 1-5 V. 60-300 mV

Output signals Output n.1: temperature. Output n.2: RH% or dew point (default RH%)

Operating temperature -30°+70°C

Sampling rate 1 sec. (default) PC programmable 1..300 sec.

N°acquisitions for mobile average calculation: N°1 (default), PC programmable 1..20 acquisitions

Load resistance (mA output): DMA570 300 Ohm

 

Spatial rep.

Vector spatial representation

Topology level
Geometry only

Geometric objects

Geometric object type
Point
Geometric object count
15
 

Ref. system

Reference system identifier
EPSG / WGS 84 (EPSG:4326) / 7.4
 

Metadata

Metadata

File identifier
b822ed10-a9dd-46ea-9a6a-b05e0b9c8218   XML
Metadata language
eng
Character set
UTF8
Parent identifier
f464f0b7-56b3-4d54-90d2-381afc71bee2
Hierarchy level
Series
Date stamp
2025-02-07T18:35:40
Metadata standard name
ISO 19115:2003/19139
Metadata standard version
1.0

  Point of contact

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

Md. constraints

Use limitation
No conditions apply
 

Md. maintenance

Maintenance information

Maintenance and update frequency
As needed
Date of next update
2011-03-31
 

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