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Nowitzki, Hannah; Rhein, Monika; Roessler, Achim; Kieke, Dagmar; Mertens, Christian (2020): PIES and altimeter derived time series in the eastern North Atlantic (47°N) and in the North Atlantic at the Mid-Atlantic Ridge [dataset bundled publication]. PANGAEA, https://doi.org/10.1594/PANGAEA.925118

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Published: 2020-11-24 • DOI registered: 2021-03-16

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Abstract:
For quantification of the exchange of water between the subtropical and subpolar regime in the eastern North Atlantic, data from inverted echo sounders (PIES) that were deployed in 2016-2017 at the 47/48°N transect is used to calculate meridional baroclinic and barotropic transport time series. The baroclinic PIES transport time series is extended to the period 1993-2017 using altimeter data. Furthermore, the correlation between altimeter and PIES derived sea surface height fluctuations is studied using data from PIES deployed at the 47/48°N transect and parallel to the Mid-Atlantic Ridge. In our analysis, we use the presented data as well as data published in Roessler et al. (2015) and Rhein et al. (2019). We find a mean PIES derived meridional northward transport of 12.2 Sv in 2016-2017 and a mean altimeter derived meridional northward transport of 9.1 Sv in 1993-2017. Additionally, we find a significant positive decadal trend in the northward transport of 2.0 Sv ± 1.5 Sv (eastern boundary current not included). This trend is opposite to the negative decadal trend of -7.1 Sv ± 3.9 Sv (western boundary current included) in the northward transport found by Rhein et al. (2019).
Keyword(s):
47°N; altimetry; east Atlantic basin; meridional transport time series; PIES
Supplement to:
Nowitzki, Hannah; Rhein, Monika; Roessler, Achim; Kieke, Dagmar; Mertens, Christian (2021): Trends and transport variability of the circulation in the subpolar eastern North Atlantic. Journal of Geophysical Research: Oceans, e2020JC016693, https://doi.org/10.1029/2020JC016693
Project(s):
Der Nordatlantik als Teil des Erdsystems (Nordatlantik)
Regional Atlantic Circulation and global Change (RACE)
Coverage:
Median Latitude: 50.228762 * Median Longitude: -29.395087 * South-bound Latitude: 48.110000 * West-bound Longitude: -36.860500 * North-bound Latitude: 52.508300 * East-bound Longitude: -15.003700
Date/Time Start: 1993-01-01T00:00:00 * Date/Time End: 2017-12-31T00:00:00
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Size:
10 datasets

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Datasets listed in this bundled publication

  1. Nowitzki, H; Rhein, M; Roessler, A et al. (2020): Absolute baroclinic and barotropic PIES transport. https://doi.org/10.1594/PANGAEA.925066
  2. Nowitzki, H; Rhein, M; Roessler, A et al. (2020): Absolute baroclinic PIES transport expanded with satellite altimetry. https://doi.org/10.1594/PANGAEA.925089
  3. Nowitzki, H; Rhein, M; Roessler, A et al. (2020): Two-way traveltime and de-drifted bottom pressure fluctuation time series in the North Atlantic at station PIES_BP13-3. https://doi.org/10.1594/PANGAEA.925098
  4. Nowitzki, H; Rhein, M; Roessler, A et al. (2020): Two-way traveltime and de-drifted bottom pressure fluctuation time series in the North Atlantic at station PIES_BP14-2. https://doi.org/10.1594/PANGAEA.925099
  5. Nowitzki, H; Rhein, M; Roessler, A et al. (2020): Two-way traveltime and de-drifted bottom pressure fluctuation time series in the North Atlantic at station PIES_BP14-3. https://doi.org/10.1594/PANGAEA.925100
  6. Nowitzki, H; Rhein, M; Roessler, A et al. (2020): Two-way traveltime and de-drifted bottom pressure fluctuation time series in the North Atlantic at station PIES_BP15-2. https://doi.org/10.1594/PANGAEA.925101
  7. Nowitzki, H; Rhein, M; Roessler, A et al. (2020): Two-way traveltime and de-drifted bottom pressure fluctuation time series in the North Atlantic at station PIES_BP15-3. https://doi.org/10.1594/PANGAEA.925102
  8. Nowitzki, H; Rhein, M; Roessler, A et al. (2020): Two-way traveltime and de-drifted bottom pressure fluctuation time series in the North Atlantic at station PIES_BP32-1. https://doi.org/10.1594/PANGAEA.925103
  9. Nowitzki, H; Rhein, M; Roessler, A et al. (2020): Two-way traveltime and de-drifted bottom pressure fluctuation time series in the North Atlantic at station PIES_BP33-1. https://doi.org/10.1594/PANGAEA.925104
  10. Nowitzki, H; Rhein, M; Roessler, A et al. (2020): Two-way traveltime and de-drifted bottom pressure fluctuation time series in the North Atlantic at station PIES_BP34-1. https://doi.org/10.1594/PANGAEA.925105