My GeoNetwork catalogue
Hourly station observations of solar incoming (total/diffuse) and longwave downward radiation for Germany
These data originate from the stations of the DWD and legally as well as qualitatively equal partner network stations. Extensive station metadata, such as station relocations, instrument changes, reference time changes, algorithm changes or operator information are included.
The quality check for these data has been completed.
Simple
- Alternate title
-
urn:x-wmo:md:de.dwd.cdc::obsgermany-climate-hourly-solar
- Date (Publication)
- 2022-04-29
- Date (Revision)
- 2022-04-29
- Edition
-
v24.03
- Edition date
- 2024-03-29
- Citation identifier
-
urn:x-wmo:md:de.dwd.cdc::obsgermany-climate-hourly-solar
CDC2.1:WMO-URN CDC2.1:WMO-URN 2021
- Citation identifier
-
59
CDC2.1:DWH.PRODUCT_ID CDC2.1:DWH.PRODUCT_ID 2018
+49 (0) 69 8062-4162
www.dwd.de
- Presentation form
- Digital map
- Presentation form
- Digital table
- Status
- On going
+ 49 (0) 69 8062-4499
https://dwd.de
- Hours of service
-
09:00 - 16:00
- Maintenance and update frequency
- Monthly
- Update scope
- Dataset
- Maintenance note
-
Data provision takes place monthly in the middle of the following month.
+ 49 (0) 69 8062-4499
https://dwd.de
- Hours of service
-
09:00 - 16:00
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DWD Climate Data Center Vocabulary - Zeitliche Auflösung
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hourly
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DWD Climate Data Center Vocabulary - Statistische Bearbeitung
-
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hourly sum
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time series
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DWD Climate Data Center Vocabulary - Parameterklasse
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radiation and sunshine duration
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DWD Climate Data Center Vocabulary - Einheit
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degree
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J/cm²
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minutes
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DWD Climate Data Center Vocabulary - Geographische Region
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Germany
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DWD Climate Data Center Vocabulary - Datenherkunft
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station data
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GEMET - INSPIRE themes, version 1.0
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Atmosphärische Bedingungen
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Meteorologisch-geografische Kennwerte
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DWD Climate Data Center Vocabulary - Vertikale Auflösung
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near surface atmosphere
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DWD Climate Data Center Vocabulary - DWD Climate Data Center Vocabulary - Parameter
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diffuse radiation
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global radiation
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atmosphärische Gegenstrahlung
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sunshine duration
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INSPIRE - Spatial scope
-
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National
-
- Keywords
-
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opendata
-
- Specific usage
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When investigating long term changes or trends, consider the information in section Uncertainties.
- User determined limitations
- considerations
- Specific usage
-
The stations are nowadays selected and operated according to WMO guidelines. Though these guidelines aim at minimizing possible local effects, still some applications of certain parameters may require the consideration of local and regional effects. Note that when going back to historical times, such guidelines might not have been in place. Depending on the application, local, regional and influences changing with time should be considered, which can be location- and parameter specific. Sources of long-term uncertainty are (1) changes in station height when station was re-located, information on this is within the station's zip-files in Metadaten_Geographie*.
Uncertainties are also expected from (2) changes in instrumentation, see Metadaten_Geraete* and possibly also from (3) varying quality control procedures (Behrendt et al., 2011).
Further, uncertainties are known to come from (4) errors during data transfer or errors in the software, (5) change of observing personnel, and (6) others, see Freydank, 2014.
- User determined limitations
- uncertainties
- Access constraints
- Other restrictions
- Other constraints
- no Limitations
- Use constraints
- Other restrictions
- Other constraints
- The Creative Commons BY 4.0 - Licence 'CC BY 4.0' apply.
Resource constraints
- Spatial representation type
- Text, table
- Language
- Deutsch
- Topic category
-
- Climatology, meteorology, atmosphere
))
- Geographic identifier
- stations in Germany
- Begin date
- 1945-12-31
- Supplemental Information
-
There are still issues to be discovered in the historical data. We welcome any hints to improve the data basis (see contact).
- Unique resource identifier
- EPSG:4326
- Geometric object type
- Point
- Geometric object count
- 49
- Distribution format
-
-
OpenData files (free access)
()
-
OpenData files (free access)
()
+ 49 (0) 69 8062-4499
www.dwd.de
- OnLine resource
- Behrendt, J., et al.: Beschreibung der Datenbasis des NKDZ. Version 3.5, Offenbach, 15.02.2011. ( WWW:LINK-1.0-http--link )
- OnLine resource
- Kaspar, F., et al.: Monitoring of climate change in Germany – data, products and services of Germany`s National Climate Data Centre. Adv. Sci. Res., 10, doi:10.5194/asr-10-99-2013, 99–106, 2013. ( WWW:LINK-1.0-http--link )
- OnLine resource
- Spengler, R.: The new Quality Control- and Monitoring System of the Deutscher Wetterdienst. Proceedings of the WMO Technical Conference on Meteorological and Environmental Instruments and Methods of Observation, Bratislava, 2002. ( WWW:LINK-1.0-http--link )
- OnLine resource
- Long, C. and Dutton, E.: BSRN Global Network recommended QC tests, V2.0, Tech. rep., available as PDF at: http://www.bsrn.awi.de, 2002. ( WWW:LINK-1.0-http--link )
- OnLine resource
- DWD Vorschriften und Betriebsunterlagen Nr. 3 (VuB 3), Technikerhandbuch (THB) für Wettermeldestellen des synoptisch-klimatologischen Mess- und Beobachtungsnetzes, März 2014b. ( WWW:LINK-1.0-http--link )
- OnLine resource
- DWD Vorschriften und Betriebsunterlagen Nr. 3 (VuB 3), Beobachterhandbuch (BHB) für Wettermeldestellen des synoptisch-klimatologischen Mess- und Beobachtungsnetzes, März 2014a. ( WWW:LINK-1.0-http--link )
- OnLine resource
- Becker, R. and Behrens, K.: Quality assessment of heterogeneous surface radiation network data, Adv. Sci. Res., 8, 93-97, doi:10.5194/asr-8-93-2012, 2012. ( WWW:LINK-1.0-http--link )
- OnLine resource
- DWD Vorschriften und Betriebsunterlagen Nr. 2 (VuB 2), Wetterschlüsselhandbuch Band D, Nov 2013. ( WWW:LINK-1.0-http--link )
- OnLine resource
-
obsgermany-climate-hourly-solar
(
WWW:LINK-1.0-http--download
)
In the folder for each station a zip-archive is provided.
The zip-archive contains the data and meta information about the station, instruments and algorithms.
The naming schema of the zip-archives is: *_{product_code}_{station_id}_row.zip
- OnLine resource
- Freydank, E.: 150 Jahre staatliche Wetter- und Klimabeobachtungen in Sachsen. Tharandter Klimaprotokolle Band 21, 2014 ( WWW:LINK-1.0-http--link )
- OnLine resource
-
ST_Stundenwerte_Beschreibung_Stationen
(
WWW:LINK-1.0-http--download
)
The file Datei ST_Stundenwerte_Beschreibung_Stationen.txt contains information on the recent geographical position and the temporal data coverage per station.
- Hierarchy level
- Dataset
Conformance result
- Date (Publication)
- 2010-12-08
- Pass
- Yes
Conceptual consistency
- Name of measure
- quality_estimation
Conformance result
- Explanation
-
Considerations of quality assurance are explained in Becker and Behrens, 2012, see also Long und Dutton, 2002: several steps of quality control, including automatic tests for completeness, temporal and internal consistency, and against statistical thresholds based on the software QualiMet (see Spengler, 2002) and manual inspection had been applied.
Data are provided “as observed”, no homogenization has been carried out. The history of instrumental design, observation practice, and possibly changing representativity has to be considered for the individual stations when interpreting changes in the statistical properties of the time series. It is strongly suggested to investigate the records of the station history which are provided together with the data. Note that in the 1990s many stations had the transition from manual to automated stations, entailing possible changes in certain statistical properties.
- Pass
- Yes
Conceptual consistency
- Name of measure
- quality_level
- Measure description
-
The QUALITAETS_NIVEAU (QN) shows the quality control procedure applied for a data report (of several parameters) for a certain reporting time.
Data before and including 1980 can reach as best quality check level QN=5. Data after 1980 can reach QN=10 as best quality check level.
Conformance result
- Explanation
-
QN = 1 : only formal control;
QN = 2 : controlled with individually defined criteria;
QN = 3 : automatic control and correction;
QN = 5 : historic, subjective procedures;
QN = 7 : second control done, before correction;
QN = 8 : quality control outside ROUTINE;
QN = 9 : not all parameters corrected;
QN = 10 : quality control finished, all corrections finished.
- Pass
- Yes
Conceptual consistency
- Name of measure
- quality_byte
- Measure description
-
The QUALITAETS_BYTE (QB) denotes whether the value was objected to and/or corrected.
Conformance result
- Explanation
-
QB = 0 : denotes not flagged,
QB = 1 : had no objections (either checked and not objected, or not checked and not objected, this can be interpreted only when considering QN);
QB = 2 : corrected;
QB = 3 : confirmed with objection rejected;
QB = 4 : added or calculated;
QB = 5 : objected;
QB = 6 : only formally checked;
QB = 7 : formal objection;
QB = -999 : quality flag does not exist.
- Pass
- Yes
- Statement
-
The data are taken from the station measuring networks of Deutscher Wetterdienst as well as its predecessor organisations.
The dataset is regularly updated with recent as well as with recovered historical data.
From 1997 onwards, the data have been imported operationally into the central specialist database and archived, see Behrendt et al., 2011, and Kaspar et al., 2013. Note that when going back to historical times, guidelines on observation procedure, instruments and observation times were issued by the authority in charge (see, e.g., Freydank, 2014), and might be incompletely recorded in the metadata of the stations.
As explained in Kaspar et al., 2013 in the early years numerous meteorological agencies were active in the area of todays Germany. After establishment of the der International Meteorological Organization (IMO) in 1873, the various standards were gradually harmonized, resulting in a single standard 1936. After 1945, the standards in East and West Germany developed differently, and were harmonized again after re-unification in 1990.
Between the end of the nineties and 2009 many stations were changed from manual to automated.
- File identifier
- urn:x-wmo:md:de.dwd.cdc::obsgermany-climate-hourly-solar XML
- Metadata language
- Deutsch
- Character set
- UTF8
- Hierarchy level
- Dataset
- Date stamp
- 2024-07-27T05:42:17
- Metadata standard name
-
ISO 19115-2 Geographic information Metadata Part 2: Extensions for imagery and gridded data
- Metadata standard version
-
ISO 19115-2:2009-02-15
+49 (0) 69 8062-4162
www.dwd.de
- Dataset URI
-
urn:x-wmo:md:de.dwd.cdc::obsgermany-climate-hourly-solar
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Spatial extent
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