Mohrmann, Martin; Swart, Sebastiaan; Heuzé, Céline (2021): Vertical profiles of salinity, temperature and pressure measured by vertical profiling floats in the eastern Weddell Sea around Maud Rise in 2018 - 2021 [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.938743
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Abstract:
We deployed to vertical profiling floats from the ship SA Agulhas II during the SANAE IV supply voyage 2018/2019 along the prime meridian close to Maud Rise. Both floats were manufactured by NKE, type Arvor I and are equipped with sensors for temperature, salinity and pressure and measure on a daily to 3-daily sampling rate. The first profiling float was deployed on 18 December 2018 at 66.2° S, 0.0° E and the second float was deployed on 18 February 2020 at 65°S, 0.0° E. Both datasets continue until May 2021. The first profiling float deployed drifted over and along the steep topography of Maud Rise, providing possibilities to research the water properties and dynamics around Maud Rise in more detail. The other profiling float drifted southwestwards. More detailed information, including plots of the trajectories and profiles of our plots can be found in a paper that we submit in connection to this dataset: Observed mixing at the flanks of Maud Rise in the Weddell Sea, submitted to Geophysical Research Letters, by Martin Mohrmann, Sebastiaan Swart and Céline Heuzé.
Related to:
Mohrmann, Martin; Swart, Sebastiaan; Heuzé, Céline (2022): Observed Mixing at the Flanks of Maud Rise in the Weddell Sea. Geophysical Research Letters, 49(8), https://doi.org/10.1029/2022GL098036
Coverage:
Median Latitude: -66.168662 * Median Longitude: 0.527555 * South-bound Latitude: -67.600940 * West-bound Longitude: -1.128830 * North-bound Latitude: -65.017550 * East-bound Longitude: 3.243000
Date/Time Start: 2018-12-18T05:05:40 * Date/Time End: 2021-05-18T05:36:02
Event(s):
Float_ID_300234067208900 * Latitude Start: -66.205530 * Longitude Start: -0.088830 * Latitude End: -65.850630 * Longitude End: 3.243000 * Date/Time Start: 2018-12-18T05:05:40 * Date/Time End: 2021-05-18T05:36:02 * Location: Maud Rise * Method/Device: ARVOR I Profiling Float (NKE Instrumentation) (ARVORFL)
Float_ID_300234068638900 * Latitude Start: -65.017550 * Longitude Start: 0.084880 * Latitude End: -67.600940 * Longitude End: -1.128830 * Date/Time Start: 2020-02-18T05:25:33 * Date/Time End: 2021-05-11T05:50:07 * Location: Maud Rise * Method/Device: ARVOR I Profiling Float (NKE Instrumentation) (ARVORFL)
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | Binary Object | Binary | Mohrmann, Martin | |||
| 2 | Binary Object (Media Type) | Binary (Type) | Mohrmann, Martin | |||
| 3 | File content | Content | Mohrmann, Martin |
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Status:
Curation Level: Enhanced curation (CurationLevelC)
Size:
2 data points
Data
All files referred to in data matrix can be downloaded in one go as ZIP or TAR. Be careful: This download can be very large! To protect our systems from misuse, we require to sign up for an user account before downloading.
| 1 Binary | 2 Binary (Type) | 3 Content |
|---|---|---|
| Float_data.zip | application/zip | Archive with the float data files. We provide the original files as transmitted during each surfacing of the floats (data/sbd/floatid/*.sbd) as well files that are converted into a human readable csv format with the float manufactures software NKE instrumentation parser (e.g. data/converted/floatid/Ascent profile CTD message.csv). The first profiling float we deployed has the Float ID 300234067208900 (occasionally referred to as 'old' in the code and folder structure) and the second profiling float has the Float ID 300234068638900 (occasionally referred to as 'new' in the code and folder structure). The original data as send by the floats via Iridium satellite connection can be found in in /Float_data/data/sbd/old/.sbd and /Float_data/data/sbd/new/.sbd. However, this data needs to be processed by a software called NKE instrumentation parser before it becomes human readable. To simplify this step, we provide readily processed ASCI-text files of the data in the folder (/Float_data/data/converted). This data however does not yet include the float position coordinates. The coordinates are provided in extra files (one for each float) as /Float_data/data/coordinates_300234067208900.csv and /Float_data/data/coordinates_300234068638900.csv. In addition to the data, some example codes for processing and plotting the data are included in /Float_data/codes. Those are supplementary, but not essential to make use of the float data. For an easy start and reproduction of our figures and results, we also include some python scripts and intermediate output files, that are good for basic processing and filtering of the data (e.g. codes/utils.py). Documentation of the functions is included in the respective source files. |