Alternate title

Date ( Publication )

2011-04-01T19:01:00

Purpose

Solar Irridance (200-360nm) pyranometer CMP 21 Kipp&Zonen is used for measuring the irradiance (radiant flux, Watt/m²) on a plane surface, which results from the direct solar radiation and from the diffuse radiation incident from the hemisphere above.

Status

On going

Maintenance and update frequency

As needed

Keywords

• SHARE , Network , Station , High Altitude

Keywords ( Theme )

• GAW , WMO , GAWSIS , CEOP

Keywords ( Place )

• Nepal , Himalaya

Keywords ( Theme )

• global solar radiation , radiative forcing

Keywords ( Theme )

• air , research , pollution , ecosystems , landscape , natural areas , climate

Use limitation

No conditions apply

Access constraints

Copyright

Other constraints

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

1

OnLine resource

SHARE Geonetwork portal  

SHARE Geonetwork portal

OnLine resource

Chapter_8_MeasureMent_of_sunsHIne_duratIon.pdf  

WMO GUIDE TO METEOROLOGICAL INSTRUMENTS AND METHODS OF OBSERVATION No. 8-

Chapter8:"Measurement of sunshine duration"

Hierarchy level

Series

Statement

The Kipp&Zonen CMP21 pyranometer, measuring downward solar irradiance throughout the 305–2800 nm spectral range. The CMP21 was installed in March 2007. Measurements were interrupted due to technical problems in November 2007 and resumed in February 2008. The solar irradiance and instrument body temperatures are acquired every 60 s. The CMP21 has a very good cosine responsivity (cosine error less than 0.4% for solar zenith angles smaller than 80°). The temperature dependence is also small (less than 0.5% within the range -20÷+50 °C), and the spectral responsivity is uniform within the measurement range (95% points at 335–2200 nm). The CMP21 was calibrated at Kipp&Zonen in November 2007, based on the World Radiometric Reference of the WMO. The estimated total uncertainty on hourly irradiance values is less than 2%.

gmd:MD_Metadata

File identifier

c3e9ed68-aeaa-46c0-9f4a-e1cb51a2df77   XML

Metadata language

eng

Character set

UTF8

Parent identifier

be0aa26f-b7d5-4c16-b206-c792bb563870

Hierarchy level

Series

Date stamp

2011-09-26T14:26:42

Metadata standard name

ISO 19115:2003/19139

Metadata standard version

1.0