Urdukas CNR1 net radiometer

The CNR1 is manufactured by Kipp & Zonen for applications requiring research-grade performance. The radiometer measures the energy balance between incoming short-wave and long-wave infrared radiation versus surface-refl ected short-wave and outgoing long-wave infrared 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.

All four sensors are calibrated to an identical sensitivity coeffi cient. Th e CNR1 also includes an

RTD to measure the radiometer’s internal temperature,a 4WPB100 module to interface the RTD with the datalogger, and a heater that can be used to prevent condensation.

Technical Characteristics:

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

Typical Sensitivity Range: 7 to 15 μV 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

Operating Temperature: -40° to 70°C

Dimensions

Mounting Arm Diameter: 0.625 in. (1.6 cm)

Mounting Arm Length: 14.5 in. (37 cm)

Radiometer: 9.1 x 3.1 x 6.1 in.

(23.2 x 8.0 x 15.6 cm)

Weight: 8.8 lbs (4 kg)

Datalogger Requirements: Six diff erential or four singleended

and two diff erential

analog channels

CE Compliance: CE compliant under the European

Union’s EMC directive

Citation proposal
(2014) . Urdukas CNR1 net radiometer. https://geoportal.mountaingenius.org/geonetwork/srv/api/records/59f03b05-e6ef-4c09-852e-befaf65bf8e0

Simple

Date ( Publication ): 2014-08-29T19:08:00

Edition

Purpose

The radiometer measures the energy

balance between incoming short-wave and long-wave

infrared radiation versus surface-refl ected short-wave

and outgoing long-wave infrared 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

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: 13

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/59f03b05-e6ef-4c09-852e-befaf65bf8e0/attachments/Data%20Usage%20Policy.pdf

Hierarchy level: Series

Statement

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

An automatic weather station is defined as a "meteorological station at which observations are made and trasmitted automatically" (WMO, 1992 a).

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.