Lukla CNR1 net radiometer

The CNR1 net radiometer by Kipp & Zonen is for applications requiring research-grade performance. The radiometer measures the energy balance between incoming short-wave and long-wave IR radiation versus surface-reflected short-wave and outgoing long-wave IR radiation. The CNR1 consists of a pyranometer and pyrgeometer pair that faces upward and a complementary pair that faces downward. The pyranometers and pyrgeometers measure short-wave and far infrared radiation, respectively. The CNR1 also includes an RTD to measure the radiometer’s internal temperature and a heater that can be used to prevent condensation.

CNR1 Specifications

Sensors: Kipp & Zonen’s CM3 ISO-class, thermopile pyranometer, CG3 pyrgeometer, PT100 RTD

Spectral Response

-Pyranometer: 305 to 2800 nm

-Pyrgeometer: 5000 to 50,000 nm

Response Time: 18 seconds

Sensitivity Range: 7 to 15 ?V W-1 m2

Output Range

-Pyranometer: 0 to 25 mV

-Pyrgeometer: ±5 mV

Expected Accuracy for Daily Totals: ±10%

Directional Error: <25 W m-2 (pyranometer)

Heating Resistor: 24 Ohms, 6 W at 12 Vdc

CE Compliance: CE compliant under the European Union’s EMC directive

Citation proposal
(2014) . Lukla CNR1 net radiometer. https://geoportal.mountaingenius.org/geonetwork/srv/api/records/69f7ab70-9d76-493a-b160-f1e56c8b916d

Simple

Date ( Publication ): 2014-09-02T12:32:00

Edition

Purpose

This sensor is measuring the followed components of solar radiation:

- incoming shortwave radiation;

- outcoming shortwave radiation;

- incoming longwave radiation;

- outcoming longwave radiation.

Status: Completed

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/

Maintenance and update frequency: As needed

Keywords ( Theme )

NEXTDATA

Keywords ( Theme )

SHARE , AWS station , monitoring network ,

Keywords ( Place )

Nepal , Lukla , Khumbu Valley , Sagarmatha National Park

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

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

Topology level: Geometry only

Geometric object type: Point

Geometric object count: 1

OnLine resource: gn:share_station
Show geographic position

OnLine resource: View in Google Earth
View in Google Earth

OnLine resource: https://geoportal.mountaingenius.org/geonetwork/srv/api/records/69f7ab70-9d76-493a-b160-f1e56c8b916d/attachments/Data%20Usage%20Policy.pdf

Hierarchy level: Series

Other: Instruments: AWS sensors

Statement

The automatic weather stations (AWS) for monitor meteorological conditions are currently included in the SHARE network.

An automatic weather station (AWS) is defined as a “meteorological station at which observations are made and transmitted automatically” (WMO, 1992a).

In particular, in the framework of the SHARE project for all parameters, the data has been visually checked, looking for extremely and unusual low/high values and/or periods with constant values.