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Summary

Daily averaged radiation data are available from 31 July 1992.

Since 1992 surface radiation measurements have been carried out by the
Alfred Wegener Institute for Polar and Marine Research (AWI) at
Koldewey Station in the framework of the Baseline Surface Radiation
Network (BSRN) in cooperation with the Norsk Polarinstitutt. The
radiation signals ... are taken in one minute intervals and stored as
averages over 5 minutes. They include:

- global radiation (pyranometer CM11, Kipp+Zonen),
- reflected solar radiation (pyranometer CM11, Kipp+Zonen),
- diffuse sky radiation (pyranometer CM11, Kipp+Zonen),
- direct solar radiation (NIP, Eppley mounted on a sun tracker),
- OG1 (global>530nm, pyranometer CM11, Kipp+Zonen),
- RG8 (global>695nm, pyranometer CM11, Kipp+Zonen),
- UV (300-370nm, TUVR, Eppley),
- sunshine duration (Solar 111, Haenni),
- downward long-wave radiation (pyrgeometer Eppley),
- upward long-wave radiation (pyrgeometer Eppley).

The pyranometers and pyrgeometers are ventilated with slightly
preheated air to minimize hoar frost problems and zero offsets during
cloudless and windless conditions. The instruments were maintained
continuously several times per day throughout the year. After one year
of operation they are re-calibrated at the German Weather Bureau
according the World Radiometric Reference (WRR).

At AWI, the radiation measurements - averaged over 5 minutes - are
archived together with the data from the mast measurements, daily
upper air soundings and routine synoptic surface observations in a
relational database (SYBASE). Additionally some derived quantities
(Iqbal 1983) such as the solar elevation, extraterrestrial solar
insolation, astronomical sunshine duration are available.

In order to obtain daily averaged radiation data, each day was
subdivided into eight 3-hourly intervals (0-3, 3-6, ..., 21-24
UTC). For each 3-hourly interval an average was derived irrespective
of the number of measurements. This procedure was chosen in order to
minimize problems resulting from missing values. If one or more
3-hourly averages were missing, no daily average was calculated.

Data are accessible via Web network by means of the AWI-Home-Page,
http://www.awi-bremerhaven.de, and can be obtained from AWI after
prior consultation.

Geographic Coverage Spatial coordinates   

N: 78.0

S: 78.0

E: 12.0

W: 12.0

Temporal Coverage

Start Date: 1992-07-31

Location Keywords

OCEAN > ARCTIC OCEAN GEOGRAPHIC REGION > POLAR

Science Keywords

ATMOSPHERE > ATMOSPHERIC RADIATION > HEAT FLUX ATMOSPHERE > ATMOSPHERIC RADIATION > LONGWAVE RADIATION ATMOSPHERE > ATMOSPHERIC RADIATION > OUTGOING LONGWAVE RADIATION ATMOSPHERE > ATMOSPHERIC RADIATION > REFLECTANCE ATMOSPHERE > ATMOSPHERIC RADIATION > SOLAR IRRADIANCE > INSOLATION ATMOSPHERE > ATMOSPHERIC RADIATION > SOLAR IRRADIANCE ATMOSPHERE > ATMOSPHERIC RADIATION > SOLAR RADIATION > REFLECTED SOLAR RADIATION ATMOSPHERE > ATMOSPHERIC RADIATION > SUNSHINE ATMOSPHERE > ATMOSPHERIC RADIATION > ULTRAVIOLET RADIATION

ISO Topic Category

CLIMATOLOGY/METEOROLOGY/ATMOSPHERE

Platform

GROUND STATIONS

Instrument

PYRANOMETERS PYRGEOMETERS

Ancillary Keywords

BASELINE SURFACE RADIATION NET BSRN DIFFUSE RADIATION DIRECT RADIATION GLOBAL RADIATION GROUND TRUTH IDN_NODE ESRIN/DLR KOLDEWEY GROUND STATION LONG-WAVE RADIATION METEOROLOGY MONITORING OG1 RADIATION TRANSFER MODELS REMOTE SENSING RG8 SKY RADIATION SUNSHINE DURATION SURFACE OBSERVATION UV OBSERVATION

Originating Center

AWI

Data Center

Alfred Wegener Institute for Polar and Marine Research Data Center URL: http://www.awi-bremerhaven.de/ Dataset ID: MisawiDB Data Center Personnel Name: MANFRED REINKE Phone: +49 (0)471 / 4831 - 1503 Email: mreinke at awi-bremerhaven.de Contact Address: Alfred Wegener Institute for Polar and Marine Research Columbusstrasse City: Bremerhaven Postal Code: 27568 Country: GERMANY

Distribution

Distribution Media: Online, 'http://www.awi-bremerhaven.de'

Personnel

GERT KOENIG-LANGLO Role: INVESTIGATOR Role: DIF AUTHOR Role: TECHNICAL CONTACT Phone: +49 471 / 4831-1806 Email: gkoenig at awi-bremerhaven.de Contact Address: Alfred Wegener Institute for Polar and Marine Research Columbusstrasse City: Bremerhaven Postal Code: 27568 Country: Germany

Publications/References

Parameterization of the Downward Long-Wave Radiation at the Earth`s
Surface in Polar Regions, Gert Koenig-Langlo and Ernst Augstein,
Meteorologische Zeitschrift N.F.3, 1994, H.6

Creation and Review Dates

Last DIF Revision Date: 1996-07-15

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