Abstract:
This is the high frequency (10 Hz) eddy covariance (EC) measurements which mainly contain the wind data, ship motion data, gas concentration data and the underway measurements. These data were measured on summer 2019 during two Arctic cruises JR18006 (from and to Aberdeen, UK and visited the Barents Sea ) and JR18007 (from Harwich, UK to Svalbard and visited the Greenland Sea). These EC data can be used to directly calculate the air-sea CO2 and sensible heat fluxes. The EC system was deployed on RRS James Clark Ross by Thomas Bell and Mingxi Yang (Plymouth Marine Laboratory). Please see Dong et al., (2021) for details of these EC data.
Eddy covariance air-sea CO2 flux measurements were made possible by funding from the NERC ORCHESTRA (NE/N018095/1) and European Space Agency AMT4oceanSatFluxCCN (4000125730/18/NL/FF /gp) projects.
Keywords:
Arctic Ocean, air-sea CO2 flux, eddy covariance, sensible heat flux, summer
Bell, T., Yang, M., & Dong, Y. (2021). Eddy covariance flux measurements during Arctic cruises JR18006 and JR18007 in summer 2019 (Version 1.0) [Data set]. NERC EDS UK Polar Data Centre. https://doi.org/10.5285/03c78c45-08b5-4d82-b09d-09c0b8a32c4d
| Access Constraints: | No restrictions on access. |
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| Use Constraints: | Data is released under Open Government Licence V3.0: http://www.nationalarchives.gov.uk/doc/open-government-licence/version/3/. |
| Creation Date: | 2021-07-12 |
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| Dataset Progress: | Complete |
| Dataset Language: | English |
| ISO Topic Categories: |
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| Parameters: |
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| Personnel: | |
| Name | UK PDC |
| Role(s) | Metadata Author |
| Organisation | British Antarctic Survey |
| Name | Dr Thomas G Bell |
| Role(s) | Investigator |
| Organisation | Plymouth Marine Laboratory |
| Name | Dr Ming-Xi Yang |
| Role(s) | Investigator |
| Organisation | Plymouth Marine Laboratory |
| Name | Mr Yuanxu Dong |
| Role(s) | Investigator |
| Organisation | University of East Anglia |
| Parent Dataset: | N/A |
| Reference: | Dong, Y., Yang, M., Bakker, D. C. E., Kitidis, V., & Bell, T. G. (2021). Uncertainties in eddy covariance air-sea CO2 flux measurements and implications for gas transfer velocity parameterisations. Atmospheric Chemistry and Physics, 21(10), 8089-8110. https://doi.org/10.5194/acp-21-8089-2021. | |
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| Quality: | These raw data were measured by the state-of-the-art instruments with high quality (missing values were logged as NAN). The raw data should be processes to account for such as the ship motion influence and flow distortion effect to the wind and gas measurements. The calculated flux should be corrected (e.g. gas sampling delay and flux attenuation) and quality controlled. | |
| Lineage: | These data were collected during cruises JR18006 and JR18007 on the ship of RRS James Clark Ross (JCR). The wind data and the ship motion data (measured by motion sensor) were logged on CR6 datalogger. The gas concentration data (measured my Picarro gas analyser) were logger on Picarro datalogger. The wind data were also logged on the Picarro logger to quantify the time lag between two dataloggers. The high frequency data is the raw data and the summary data is the calculated hourly fluxes and statistics. For the instrumental setup, data processing, flux calculations please see Dong et al., (2021). | |
| Temporal Coverage: | |
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| Start Date | 2019-06-30 |
| End Date | 2019-08-01 |
| Start Date | 2019-08-05 |
| End Date | 2019-09-29 |
| Spatial Coverage: | |
| Latitude | |
| Southernmost | 53.13 |
| Northernmost | 81.04 |
| Longitude | |
| Westernmost | -2.09 |
| Easternmost | 32.97 |
| Altitude | |
| Min Altitude | 20 m |
| Max Altitude | N/A |
| Depth | |
| Min Depth | 6 m |
| Max Depth | N/A |
| Latitude | |
| Southernmost | 59.67 |
| Northernmost | 79.94 |
| Longitude | |
| Westernmost | -8.45 |
| Easternmost | 15.58 |
| Altitude | |
| Min Altitude | 20 m |
| Max Altitude | N/A |
| Depth | |
| Min Depth | 6 m |
| Max Depth | N/A |
| Location: | |
| Location | N/A |
| Detailed Location | Barents Sea |
| Location | N/A |
| Detailed Location | Greenland Sea |
| Data Collection: | - Wind measurements: Metek Inc., Sonic-3 Scientific - Ship motion: Life Performance-Research LPMS-RS232AL2 - Gas concentration: Picarro G2311-f gas analyser with a Nafion PD-200T-24M dryer - Summary data: the fluxes are calculated following the method described in Dong et al., (2021) using Python. |
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| Data Storage: | 4770 files overall, including 4753 high frequency data files (.dat, .txt and .AOC), 15 data description text files, (.txt and .TPL), and two summary files (.txt). The overall volume is 46.6 GB. |
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