The Data Access Portal has information in 3 columns. An outline of the content in these columns is provided above. When first entering the search interface, all potential datasets are listed. Datasets are indicated in the map and results tabulation elements which are located in the middle column. The order of results can be modified using the "Sort by" option in the left column. On top of this column is normally relevant guidance information to user presented as collapsible elements.
If the user want to refine the search, this can be done by constraining the bounding box search. This is done in the map - the listing of datasets is automatically updated. Date constraints can be added in the left column. For these to take effect, the user has to push the button marked search. In the left column it is also possible to specific text elements to search for in the datasets. Again pushing the button marked "Search" is necessary for these to take action. Complex search patterns can be constructed using logical operators and phrases embedded in quotation marks. Logical operators include AND, OR and NOT. Remember to add space around operators. Text strings that are not quoted are trated as separate words and will match any of the words (i.e. assuming the OR operator). E.g. in order to find WMO synoptic weather station data from Verlegenhuken use the search phrase: [synop AND verlegenhuken]. Searches are case insensitive.
Other elements indicated in the left and right columns are facet searches, i.e. these are keywords that are found in the datasets and all datasets that contain these specific keywords in the appropriate metadata elements are listed together. Further refinement can be done using full text, date or bounding box constraints. Individuals, organisations and data centres involved in generating or curating the datasets are listed in the facets in the right column.
Collections
Collections allows the user to search in subsets of the existing catalogue. The collections are primarily data management projects that have been incorporated in the ADC catalogue after the project has ended. In this context the ADC is the long term access solution for these data. The collections currently served through ADC include (datasets may belong to multiple data collections):
ADC is the full collection of this service CC is the CryoClim collection
In order to search a specific data collection select that collection. If no data collection is selected all collections are searched.
AeN are data related to the Nansen Legacy project and are better explored through the SIOS Data Access Point using the collection defined there which is available through this URL.
SIOS, InfraNOR, SIOSCD, SIOSAP, SESS_* are collections related to SIOS. These are better explored through the SIOS Data Access Portal
Some cleaning is pending between InfraNOR and SIOSIN, for some of the SESS collections.
Citation of data and service
Always remember to cite data when used!
Citation information for individual datasets is often provided in the metadata. However, not all datasets have this information embedded in the discovery metadata. On a general basis a citation of a dataset include the same components as any other citation:
author,
title,
year of publication,
publisher (for data this is often the archive where it is housed),
edition or version,
access information (a URL or persistent identifier, e.g. DOI if provided)
The information required to properly cite a dataset is normally provided in the discovery metadata the datasets.
If you use data retrieved through this portal, please acknowledge the Norwegian Meteorological Institute/Arctic Data Centre.
Institutions: AWI Alfred Wegener Institute for Polar and Marine Research, Norwegian Meteorological Institute / Arctic Data Centre, Norwegian Meteorological Institute / Arctic Data Centre
Last metadata update: 2022-11-15T12:45:37Z
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Abstract:
Array of 12 deep moorings across Fram Strait at 78deg50min N maintained by AWI
Institutions: UNIS The University Centre in Svalbard, Norwegian Meteorological Institute / Arctic Data Centre, Norwegian Meteorological Institute / Arctic Data Centre
Last metadata update: 2022-11-15T12:48:12Z
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Abstract:
The mooring F0 was in operation at 78.833 deg N in the Fram Strait between 2007-09-11 and 2009-09-11, measuring current and hydrographic properties at the shelf break (224 m water depth). The mooring was retrieved and redeployed between 2008-09-11 and 2008-09-14. The child datasets represents different instrumentation at different levels in the mooring.
Institutions: Norwegian Polar Institute, Norwegian Polar Institute, Norwegian Meteorological Institute, Norwegian Meteorological Institute / Arctic Data Centre
Institutions: IMR Institute of Marine Research, Norwegian Meteorological Institute / Arctic Data Centre, Norwegian Meteorological Institute / Arctic Data Centre, IMR Institute of Marine Research
Institutions: Norwegian Meteorological Institute / Arctic Data Centre, Norwegian Meteorological Institute / Arctic Data Centre, UiO University of Oslo
Last metadata update: 2023-08-25T09:06:05Z
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Abstract:
Content: Data from surface drifter deployed in the Nordic Seas, POLEWARD
project (NO971274042)
Project Owner: met.no
Partners: Met.no, UiO, UiB, NPI
Project Menager: Cecilie Mauritzen (c. mauritzen@met.no)
Variables: Drifter
index, time (days from 01-01-1970)
position longitude (degr E), position
latitude (degr N), SST (K)
Data publicly available under the Global Drifter
Program,http://www.aoml.noaa.gov/phod/dac/gdp.html
Processing: quality
control, kriging, resampling til dt=0.25 day, for details see http://www.aoml.noaa.gov/phod/dac/dacdata.html.
The data is corrected for the
drogue loss. Missing data are flagged a value of 999.9990
Update status for
the whole data set: data from 145/150 drifters are included
(Transmitted
successfully)
The data included spans the period 24 June 2007 - 30 September
2010
(as on 22 March 2011 - this is the last status of the quality-controlled
data comes with ca. 6 month delay)
For the update we need to wait for QC from
AOML/NOAA
Contact: Inga Koszalka, UiO, inga.koszalka@geo.uio.no,
j.h.lacasce@geo.uio.no
Institutions: Norwegian Meteorological Institute / Arctic Data Centre, Norwegian Meteorological Institute / Arctic Data Centre, IOPAN Instytut Oceanologii, Polska Akademia Nauk
Last metadata update: 2023-07-13T12:03:35Z
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Abstract:
IO PAS CTD data file from Arctic Cruise with R/V Oceania performed in summer 2007
As part of the "KROP - Kongsfjorden Rijpfjorden Observatory Programme" UiT The Arctic University of Norway and The Scottish Association for Marine Science maintain marine observatories (moorings) in two high-Arctic fjords in Svalbard: Kongsfjorden and Rijpfjorden. The observatories consists of an array of CTDs, temperature loggers, ADCPs and a sediment trap, in addition to various other instruments or installations that change from year to year. This dataset contains the CTD, PAR and fluorescence data from Kongsfjorden 2007-2008. Fluorescence data is given as raw voltage only, due to calibration and fouling issues. It is meant as an indication of the timing of the phytoplankton bloom, not as absolute chlorophyll a concentration. No post-recovery processing of light data (to correct for fouling) has been performed. First deployment on southern side of Kongsfjorden, which is the permanent side for all future moorings. Only one upward facing ADCP. S4 current meter did not record any data. Sediment trap failed due to sediment stuck in the funnel.
Hydrographic and current time series data from inside the southern side of the Isfjorden Mouth during 16 September 2005 to 15 September 2006 at 78°08.300’ N; 014°25.030’ E, and 220 m depth. The mooring was deployed by the University Centre in Svalbard (UNIS) as a part of the AGF course “Polar Ocean Climate” to monitor inflow of Atlantic Water to Isfjorden, and was equipped with two Aanderaa Instruments recoding current meters (RCMs) with auxiliary CTD sensors covering the intermediate and bottom layer. For further details of the mooring and data, see Skogseth et al. (2020).
Reference: Skogseth R., Olivier L.L.A., Nilsen F., Falck E., Fraser N., Tverberg V., Ledang A.B., Vader A., Jonassen M.O., Søreide J., Cottier F., Berge J., Ivanov B.V., and Falk-Petersen S. (2020). Variability and decadal trends in the Isfjorden (Svalbard) ocean climate and circulation – an indicator for climate change in the European Arctic, Progress in Oceanography, 187, DOI: doi.org/10.1016/j.pocean.2020.102394.
Quality
Pressure, temperature and salinity data have been despiked with a window size of 60 and a standard deviation of 2. Temperature and salinity data have been calibrated against nearby SBE 911+ CTD profiles taken during the deployment period. No pressure and salinity on lower sensor.
Instrument height above surface varies thoughout the record, depending on snow amounts and ice melt. Thus “2-m temperature” is only nominally at two meters above the surface. For information, contact authors. Height above sea level: 570 m.
- SW_in_Wpm2_Avg: Incoming shortwave radiation (W/m2) (Col H “Radiation SW ↓” )
- LW_in_corr_Wpm2_Avg: Incoming longwave radiation (W/m2) (Col J “Radiation LW ↓”)
- SW_out_Wpm2_Avg: Reflected shortwave radiation (W/m2) (Col I “Radiation SW ↑”)
- LW_out_corr_Wpm2_Avg: Outgoing longwave radiation (W/m2) (Col K “Radiation LW ↑”)
- AT_2_Avg: Air temperature 2 m above ice surface (C) (Col B “T (C)“)
- RH_2_Avg: Relative humidity 2 m above ice surface (%) (Col C “RH (%)”)
- WS_2_WVc(1): Wind speed 2 m over ice surface (m/s) (Col F “Wind speed Mean (m/s)”)
- Gust_2_Max: Maximum wind gust 2 m over ice surface (m/s) (Col E “Wind speed Max (m/s)”)
- WS_2_WVc(2): Wind direction 2 m over ice surface (degrees) (Col G “Wind direction (deg)”)
Norwegian-U.S. Scientific IPY Traverse of East Antarctica (2007-2009), International Polar Year 2007-2008
Last metadata update: 2010-07-26T12:00:00Z
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Abstract:
Radar profiles of the upper 50-90 m of the snowpack along the route of the Norwegian-U.S. IPY traverse of East Antarctica. The radar was run primarily as a crevasse detector, but the data has been kept for comparison with other radar data from the traverse. The scientific objectives are to investigate the spatial and temporal variability in snow accumulation over this area of Antarctica, and to validate remote sensing data.
Route
- Leg 1 (2007-2008):
- From: Troll station [-72.01, 2.53]
- To: “Camp Winter” [-86.8, 54.4]
- Leg 2 (2008-2009):
- From: South pole [-90, 0]
- Across: Recovery lakes region
- To: Troll station [-72.01, 2.53]
Due to instrument limitations the profiles are not continuous. The instrument allows a maximum file size of 64 MB, thus the profiles were interrupted for data storage every few km. Instrument settings also vary along the track.
Info page on the project website, Norwegian-U.S. Scientific IPY Traverse of East Antarctica (2007-2009), International Polar Year 2007-2008
Last metadata update: 2016-07-26T11:02:30Z
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Abstract:
The shallow radar measurements were made to obtain accumulation rates from the variation in depth to internal layers, and their lateral and temporal variability along the traverse route. The data were also collected for back-scatter comparison of the ground penetrating radars (GPR) and synthetic aperture radar (SAR). The overall goal of the comparison is to improve satellite- based estimations of accumulation rates.
The ice flow velocities can be estimated from the morphology of internal layering evident in shallow radar data in areas of clear vertical structures in the firn column. These kind of structures can be found at the margins of the Recovery Lakes, for example. In addition, the radar data will be used to study firn properties together with the snow pit and firn core analysis.
Route
- Leg 1 (2007-2008):
- From: Troll station [-72.01, 2.53]
- To: “Camp Winter” [-86.8, 54.4]
Instruments
- C-band radar: A frequency-modulated continuous-wave (FMCW) system built by Svein-Erik Hamran. It has a center frequency of 5.3 GHz sweeping over a bandwidth of 1 GHz. The unambiguous range in air is 67.4 m with 451 samples in the frequency domain.
- Ramac 800 and 500 MHz: RAMAC GPR device by Malå Geoscience is a commercial impulse radar that was operated with shielded 800 MHz and 500 MHz antennae. The 800 MHz antennae were used for the first part of traverse starting from Troll and ending at Site 91 in 2007/08, and the 500 MHz antennae were used from Site 91 to Camp Winter.
Twenty hooded seals (3 in July 2007 - 2 adult males and 1 pup - and 17 in March 2008 - 1 adult male, 9 adult females and 7 pups) were live-captured on the ice northwest of Jan Mayen Island (~73.86 N and 13.50 E) and instrumented with Conductivity-Temperature-Depth Satellite Relay Data Loggers (CTD-SRDLs) (Sea Mammal Research Unit, University of St Andrews). This dataset corresponds to the data of these tags including tracking and diving data as well as CTD information.
Ten day binned light-level logger location records for individual common and Brünnich’s guillemots used in the study “Individual migration strategy fidelity but no habitat specialization in two congeneric seabirds “. Raw data for publication. Ten day time steps are counted starting 1 July each year.
Institutions: Norwegian Polar Institute, Norwegian Polar Institute, Norwegian Meteorological Institute, Norwegian Meteorological Institute / Arctic Data Centre
Last metadata update: 2022-11-15T12:48:12Z
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Abstract:
Temperature and Salinity measurements collected by the Norwegain Polar
Institute.
Indices of haddock by age calculated using the StoX software (Johnsen et al. 2019), and the strata system and methods described in Johannesen et al. (2019). The input data is from the Barents Sea NOR-RUS ecosystem cruise in autumn (survey report ref)