Pyranometer

In the Nepal Climate Observatory - Pyramid a pyranometer CMP 21 Kipp&Zonen (global solar, broadband) is installed for measuring the global solar irradiance (200-3600 nm).

Citation proposal
(2011) . Pyranometer. https://geoportal.mountaingenius.org/geonetwork/srv/api/records/be0aa26f-b7d5-4c16-b206-c792bb563870

Simple

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.

-Analysis of short-wave solar irradiance; variability;

-Analysis of cloud cover;

-Radiative forcing studies.

Status: On going

Point of contact

Ev-K2-CNR - ( )

Via San Bernardino 145 Bergamo BG 24126 Italy

+39 035 3230511

+39 035 3230551

Website: http://www.evk2cnr.org/

Point of contact

Institute of Atmospheric Sciences and Climate (ISAC) - CNR - Paolo Bonasoni ( )

Via Gobetti 101 Bologna BO 40129 Italy

+39 051 639 9590

+39 051 639 9652

Principal investigator

Institute of Atmospheric Sciences and Climate (ISAC) - CNR - Paolo Cristofanelli ( )

Via Gobetti 101 Bologna 40129 Italy

+39 051 6399597

+39 051 6399652

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: ISAC EVK2-Nepal Climate Observatory - Pyramid website
ISAC EVK2-Nepal Climate Observatory - Pyramid website

OnLine resource: GAWSIS (Global Atmosphere Watch Station Information System) report about Nepal Climate Observatory - Pyramid
GAWSIS (Global Atmosphere Watch Station Information System) report about Nepal Climate Observatory - Pyramid

OnLine resource: Official website of CEOP-HE (Coordinated Energy and water cycle Observation Project - High Elevation)
Official website of CEOP-HE (Coordinated Energy and water cycle Observation Project - High Elevation)

OnLine resource: KippZonen_Manual_CMP_CMA_series_Pyranometers_Albedometers_V1007.pdf
User Manual Kipp&Zonen CMP21 Pyranometer

Hierarchy level: Series

Other: Global short-wave irradiance

Statement: 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%.