doi: 10.21348/d.no.0001

NORSAR is the Norwegian National Data Center (NDC) for verification of the Comprehensive Nuclear-Test-Ban Treaty (CTBT). Four of the stations in the NO network are in the International Monitoring System (IMS) which is designed to detect any nuclear explosion conducted on Earth, to verify compliance with the Treaty.

IMS stations


NOA is a primary seismic array (PS27) in the IMS. With its 42 seismometers and 7 sub-arrays distributed over an area with a diameter of 60 km in Southern Norway, it is the largest seismic array station in the IMS.


ARCES is a primary seismic array (PS28) in the IMS. The array consists of 25 seismometers placed within an area with a 3 km diameter in Northern Norway.  


SPITS is an auxiliary seismic array (AS72) in the IMS. The array consists of 9 seismometers within an area with a 1 km diameter on Spitsbergen in the Svalbard archipelago.


JMIC is a single three-component auxiliary station (AS73) in the IMS on the island Jan Mayen in the North Atlantic Ocean.

Non-IMS stations


TROLL is a single three-component station at the research station of the Norwegian Polar Institute in Antarctica.


BEAR is a seismic array consisting of 6 seismometers at Bear island in the Barents Sea.


AKN and JETT are two single three-component stations used to monitor unstable rock slopes, AKN in Western Norway, JETT in Northern Norway.


BRBA and BRBB are two single three-component stations near Barentsburg on Spitsbergen, operated by the Kola Branch of Geophysical Survey, Russian Academy of Sciences (KRSC).

Development of the NO network

For a description of the development of the network, see:

Schweitzer, J., A. Köhler, and J. M. Christensen (2021). Development of the NORSAR Network over the Last 50 Yr, Seismol. Res. Lett. XX,
1–11, doi: 10.1785/0220200375

Citing the NO network

Data retrieved from the NO network should always be cited. This includes use by academic or commercial organisations, as well as by individuals.

The product citation:

NORSAR (1971). NORSAR Station Network [Data set], https://doi.org/10.21348/d.no.0001

 

Data Access

 

Access to data from the NO network is provided by the UIB-NORSAR EIDA node through standard FDSN and EIDA web services (https://www.orfeus-eu.org/data/eida/webservices).

 

Individual sites. Station code, latitude, longitude.

 

NOA:

NAO00   60.8237   10.8324

NAO01   60.8442   10.8865

NAO02   60.8057   10.8971

NAO03   60.7881   10.8084

NAO04   60.8105   10.7625

NAO05   60.8507   10.8193

NB200   61.0397   11.2148

NB201   61.0495   11.2939

NB202   61.0069   11.2778

NB203   61.0107   11.1677

NB204   61.0498   11.1581

NB205   61.0710   11.1977

NBO00   61.0307   10.7774

NBO01   61.0616   10.7834

NBO02   61.0492   10.8569

NBO03   61.0129   10.8371

NBO04   61.0119   10.7524

NBO05   61.0597   10.7219

NC200   61.2807   10.8354

NC201   61.2988   10.9138

NC202   61.2545   10.9110

NC203   61.2438   10.8318

NC204   61.2759   10.7629

NC205   61.3231   10.8227

NC300   61.2617   11.4141

NC301   61.2762   11.4905

NC302   61.2328   11.4726

NC303   61.2251   11.3690

NC304   61.2784   11.3320

NC305   61.2979   11.4035

NC400   61.0791   11.7189

NC401   61.0804   11.7994

NC402   61.0446   11.7573

NC403   61.0537   11.6683

NC404   61.0982   11.6456

NC405   61.1128   11.7153

NC600   60.7473   11.4584

NC601   60.7746   11.5416

NC602   60.7353   11.5414

NC603   60.7050   11.4807

NC604   60.7263   11.3956

NC605   60.7770   11.4103

ARCES:

ARA0    69.5349   25.5058

ARA1    69.5363   25.5071

ARA2    69.5338   25.5078

ARA3    69.5346   25.5019

ARB1    69.5379   25.5079

ARB2    69.5357   25.5134

ARB3    69.5324   25.5106

ARB4    69.5328   25.4998

ARB5    69.5363   25.4985

ARC1    69.5411   25.5079

ARC2    69.5383   25.5229

ARC3    69.5329   25.5231

ARC4    69.5293   25.5117

ARC5    69.5300   25.4981

ARC6    69.5341   25.4882

ARC7    69.5396   25.4937

ARD1    69.5483   25.5093

ARD2    69.5452   25.5308

ARD3    69.5366   25.5483

ARD4    69.5271   25.5362

ARD5    69.5214   25.5118

ARD6    69.5227   25.4900

ARD7    69.5294   25.4707

ARD8    69.5384   25.4686

ARD9    69.5454   25.4857

ARE0    69.5348   25.5057

SPITS:

SPA0    78.1777   16.3700

SPA1    78.1797   16.3755

SPA2    78.1759   16.3766

SPA3    78.1773   16.3588

SPB1    78.1796   16.3906

SPB2    78.1742   16.3846

SPB3    78.1737   16.3584

SPB4    78.1789   16.3482

SPB5    78.1823   16.3683

BEAR:

BEA1    74.4994   19.0014

BEA2    74.4988   19.0101

BEA3    74.4978   19.0084

BEA4    74.4965   19.0108

BEA5    74.4958   19.0056

BEA6    74.4960   19.0014

3C-stations:

JMIC    70.9866   -8.5057

TROLL  -72.0082    2.5300

AKN     62.1783    6.9974

JETT    69.5557   20.4095

BRBA    78.0588   14.2191

BRBB    78.0953   14.2149