Continuous data recorded by New Zealand's Geomagnetic Observatories EYR, SBA & API, processed at 1-minute and 1-second sampling, and submitted to INTERMAGNET in a standardized file format (IAGA-2002) every hour. The data are preliminary as they are submitted without being cleaned (spikes removed) and baseline (absolute values) corrected. The preliminary 1-minute data are more timely and potentially more complete than the definitive 1-minute data, whereas the 1-minute definitive data goes through a data quality reviewing process with data recorded in one year not being published until the following year. There are no 1-second definitive data being produced. The data can be downloaded via a free web access provided by INTERMAGNET at http://www.intermagnet.org/data-donnee/download-eng.php (Data Type: ‘provisional’). 1-minute data (Sample Rate: ‘minute’): EYR available since 1994, SBA since 1996, and API since 1999. 1-second data (Sample Rate: ‘second’): EYR data available since 2012, SBA since 2012, and API since 2012.

2018 Definitive 1-minute Scott Base (SBA) data is continuous 1-second data recorded by New Zealand's Geomagnetic Observatories SBA in 2018 that was processed at 1-minute sampling, cleaned (spikes removed) and baseline (absolute values) corrected. The data was submitted to INTERMAGNET in July 2019 and passed the INTERMAGNET reviewing process. DOI https://doi.org/10.21420/039F-XE27 Cite as: Petersen, T., & GNS Science. (2019). 2018 Definitive 1-minute Scott Base (SBA) data [Data set]. INTERMAGNET. https://doi.org/10.21420/039F-XE27

This database documents fluctuations in the Earth's regional (New Zealand) magnetic field measured before the age of digital records. New Zealand operates magnetic observatories in Canterbury (the Eyrewell Geomagnetic Observatory located at West Melton) and Scott Base in Antarctica, and supports the Apia observatory in Samoa. Observatories in the present days provide a record of temporal changes of the magnetic field, recording the three components of the magnetic field every second. Eyrewell (EYR), Scott Base (SBA) and Apia (API) geomagnetic observatories.

Continuous data recorded by New Zealand's Geomagnetic Observatories SBA processed at 1-minute sampling and baseline (absolute values) corrected. The data is being submitted to INTERMAGNET annually (submitted by July 1st for the previous year’s data Jan 1 to 31 Dec). SBA data since 1-Jan-1996 Before the definitive data for each year is being published via INTERMAGNET an international multi-step reviewing process is being applied to ensure international standards are being met. DOI https://doi.org/10.21420/CC3M-2D40 Cite as: GNS Science. (1996). Definitive 1-minute Scott Base (SBA ) data [Data set]. GNS Science, INTERMAGNET. https://doi.org/10.21420/CC3M-2D40

Continuous data recorded by New Zealand's Geomagnetic Observatories API processed at 1-minute sampling and baseline (absolute values) corrected. The data is being submitted to INTERMAGNET annually (submitted by July 1st for the previous year’s data Jan 1 to 31 Dec). API data since 1-Jan-1999 Before the definitive data for each year is being published via INTERMAGNET an international multi-step reviewing process is being applied to ensure international standards are being met. DOI https://doi.org/10.21420/B7GS-DK09 Cite as: GNS Science. (1999). Definitive 1-minute Apia (API) data [Data set]. GNS Science, INTERMAGNET. https://doi.org/10.21420/B7GS-DK09

2017 Definitive 1-minute Scott Base (SBA) data is continuous 1-second data recorded by New Zealand's Geomagnetic Observatories SBA in 2017 that was processed at 1-minute sampling, cleaned (spikes removed) and baseline (absolute values) corrected. The data was submitted to INTERMAGNET in July 2018 and passed the INTERMAGNET reviewing process. DOI: https://doi.org/10.21420/S2JS-J450 Cite as: Petersen, T., & GNS Science. (2018). 2017 Definitive 1-minute Scott Base (SBA) data [Data set]. INTERMAGNET. https://doi.org/10.21420/S2JS-J450

2020 Definitive 1-minute Eyrewell (EYR) data is continuous 1-second data recorded by New Zealand's Geomagnetic Observatories EYR in 2020 that was processed at 1-minute sampling, cleaned (spikes removed) and baseline (absolute values) corrected. The data was submitted to INTERMAGNET in July 2021 and passed the INTERMAGNET reviewing process. DOI: https://doi.org/10.21420/F459-S796 Cite data as: Thornton, M., Plank, G., & Plank, J. (2021). 2020 Definitive 1-minute Eyrewell (EYR) data [Dataset]. GNS Science, INTERMAGNET. https://doi.org/10.21420/F459-S796

2015 Definitive 1-minute Eyrewell (EYR) data is continuous 1-second data recorded by New Zealand's Geomagnetic Observatories EYR in 2015 that was processed at 1-minute sampling, cleaned (spikes removed) and baseline (absolute values) corrected. The data was submitted to INTERMAGNET in July 2016 and passed the INTERMAGNET reviewing process. DOI: https://doi.org/10.21420/WM2Y-ST48 Cite as: GNS Science, Petersen, T., & Plank, G. (2016). 2015 Definitive 1-minute Eyrewell (EYR) data [Data set]. INTERMAGNET. https://doi.org/10.21420/WM2Y-ST48

Continuous data recorded by New Zealand's Geomagnetic Observatories EYR, SBA & API processed at 1-minute sampling and baseline (absolute values) corrected. The data for each observatories is being submitted to INTERMAGNET annually (submitted by July 1st for the previous year’s data Jan 1 to 31 Dec). EYR data since 1-Jan-1994 SBA data since 1-Jan-1996 API data since 1-Jan-1999 Before the definitive data for each year is being published via INTERMAGNET an international multi-step reviewing process is being applied to ensure international standards are being met.

2017 Definitive 1-minute Eyrewell (EYR) data is continuous 1-second data recorded by New Zealand's Geomagnetic Observatories EYR in 2017 that was processed at 1-minute sampling, cleaned (spikes removed) and baseline (absolute values) corrected. The data was submitted to INTERMAGNET in July 2018 and passed the INTERMAGNET reviewing process. DOI https://doi.org/10.21420/RDW3-BD36 Cite as: GNS Science, Petersen, T., & Plank, G. (2018). 2017 Definitive 1-minute Eyrewell (EYR) data [Data set]. INTERMAGNET. https://doi.org/10.21420/RDW3-BD36