NORSAR Station Network
NO network operated by NORSAR
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 Bjørnøya in the Barents Sea.
HSPA is a seismic array consisting of 5 seismometers at Hornsund on Spitsbergen.
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
HSPA:
HSPA1 77.0032 15.5259
HSPA2 77.0062 15.5274
HSPA3 77.0060 15.5325
HSPA4 77.0055 15.5427
HSPA5 77.0035 15.5357
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