/* DATA DESCRIPTION: Citation: Krall, Kerstin E; Nagel, Leila; Jähne, Bernd (2019): Air-sea gas transfer velocities in the Baltic Sea measured with the Active Controlled Flux Technique [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.899774, Supplement to: Nagel, Leila; Krall, Kerstin E; Jähne, Bernd (2019): Measurements of air–sea gas transfer velocities in the Baltic Sea. Ocean Science, 15(2), 235-247, https://doi.org/10.5194/os-15-235-2019 Abstract: Heat transfer velocities measured during three different campaigns in the Baltic Sea using the Active Controlled Flux Technique (ACFT) with wind speeds ranging from 5.3 to 14.8 m s−1 are presented. Careful scaling of the heat transfer velocities to gas transfer velocities using Schmidt number exponents measured in a laboratory study allows to compare the measured transfer velocities to existing gas transfer velocity parameterizations, which use wind speed as the controlling parameter. The measured data and other field data clearly show that some gas transfer velocities are much lower than the empirical wind speed parametrizations. This indicates that the dependencies of the transfer velocity on the fetch, i.e., the history of the wind and the age of the wind wave field, and the effects of surface active material need to be taken into account. Data set contains: Measured heat transfer velocities kheat in dependency of time, position, wind speed and water and air temperature for the measurements on RV Alkor and RV Aranda in 2009 and 2010. Furthermore the Prandtl number Pr, the Schmidt number exponent n and the scaled transfer velocity k600 are given. The given times are approximate starting times in UTC. Each measurements lasted about 20 min. Project(s): Surface Ocean Processes in the Anthropocene (SOPRAN) (URI: https://www.pangaea.de/projects/) Coverage: MEDIAN LATITUDE: 58.709900 * MEDIAN LONGITUDE: 19.931833 * SOUTH-BOUND LATITUDE: 54.951000 * WEST-BOUND LONGITUDE: 13.103000 * NORTH-BOUND LATITUDE: 65.215000 * EAST-BOUND LONGITUDE: 22.638000 DATE/TIME START: 2009-04-28T19:55:00 * DATE/TIME END: 2010-09-18T13:35:00 Event(s): AL336_A1 * LATITUDE: 55.002000 * LONGITUDE: 13.169000 * DATE/TIME: 2009-04-28T19:55:00 * CAMPAIGN: AL336 * BASIS: Alkor (1990) (URI: https://www2.bsh.de/aktdat/dod/fahrtplanung/Alkor.htm) * METHOD/DEVICE: Active Controlled Flux Technique (ACFT) AL336_A2 * LATITUDE: 55.122000 * LONGITUDE: 13.103000 * DATE/TIME: 2009-04-30T02:30:00 * CAMPAIGN: AL336 * BASIS: Alkor (1990) (URI: https://www2.bsh.de/aktdat/dod/fahrtplanung/Alkor.htm) * METHOD/DEVICE: Active Controlled Flux Technique (ACFT) AL336_A3 * LATITUDE: 56.389000 * LONGITUDE: 17.591000 * DATE/TIME: 2009-05-01T20:05:00 * CAMPAIGN: AL336 * BASIS: Alkor (1990) (URI: https://www2.bsh.de/aktdat/dod/fahrtplanung/Alkor.htm) * METHOD/DEVICE: Active Controlled Flux Technique (ACFT) AL336_A4 * LATITUDE: 57.337000 * LONGITUDE: 20.016000 * DATE/TIME: 2009-05-02T20:20:00 * CAMPAIGN: AL336 * BASIS: Alkor (1990) (URI: https://www2.bsh.de/aktdat/dod/fahrtplanung/Alkor.htm) * METHOD/DEVICE: Active Controlled Flux Technique (ACFT) AL336_A5 * LATITUDE: 57.366000 * LONGITUDE: 19.904000 * DATE/TIME: 2009-05-03T20:45:00 * CAMPAIGN: AL336 * BASIS: Alkor (1990) (URI: https://www2.bsh.de/aktdat/dod/fahrtplanung/Alkor.htm) * METHOD/DEVICE: Active Controlled Flux Technique (ACFT) AL356_B1 * LATITUDE: 54.951000 * LONGITUDE: 19.233000 * DATE/TIME: 2010-07-02T00:05:00 * CAMPAIGN: AL356 * BASIS: Alkor (1990) (URI: https://www2.bsh.de/aktdat/dod/fahrtplanung/Alkor.htm) * METHOD/DEVICE: Active Controlled Flux Technique (ACFT) AL356_B2 * LATITUDE: 55.064000 * LONGITUDE: 19.175000 * DATE/TIME: 2010-07-02T00:35:00 * CAMPAIGN: AL356 * BASIS: Alkor (1990) (URI: https://www2.bsh.de/aktdat/dod/fahrtplanung/Alkor.htm) * METHOD/DEVICE: Active Controlled Flux Technique (ACFT) AL356_B3 * LATITUDE: 57.383000 * LONGITUDE: 19.490000 * DATE/TIME: 2010-07-03T06:05:00 * CAMPAIGN: AL356 * BASIS: Alkor (1990) (URI: https://www2.bsh.de/aktdat/dod/fahrtplanung/Alkor.htm) * METHOD/DEVICE: Active Controlled Flux Technique (ACFT) AL356_B4 * LATITUDE: 57.658000 * LONGITUDE: 21.653000 * DATE/TIME: 2010-07-03T23:05:00 * CAMPAIGN: AL356 * BASIS: Alkor (1990) (URI: https://www2.bsh.de/aktdat/dod/fahrtplanung/Alkor.htm) * METHOD/DEVICE: Active Controlled Flux Technique (ACFT) AL356_B5 * LATITUDE: 57.903000 * LONGITUDE: 22.594000 * DATE/TIME: 2010-07-04T22:05:00 * CAMPAIGN: AL356 * BASIS: Alkor (1990) (URI: https://www2.bsh.de/aktdat/dod/fahrtplanung/Alkor.htm) * METHOD/DEVICE: Active Controlled Flux Technique (ACFT) AL356_B6 * LATITUDE: 59.857000 * LONGITUDE: 19.643000 * DATE/TIME: 2010-07-05T20:30:00 * CAMPAIGN: AL356 * BASIS: Alkor (1990) (URI: https://www2.bsh.de/aktdat/dod/fahrtplanung/Alkor.htm) * METHOD/DEVICE: Active Controlled Flux Technique (ACFT) AL356_B7 * LATITUDE: 65.215000 * LONGITUDE: 22.638000 * DATE/TIME: 2010-07-08T18:50:00 * CAMPAIGN: AL356 * BASIS: Alkor (1990) (URI: https://www2.bsh.de/aktdat/dod/fahrtplanung/Alkor.htm) * METHOD/DEVICE: Active Controlled Flux Technique (ACFT) AL356_B8 * LATITUDE: 58.561000 * LONGITUDE: 18.244000 * DATE/TIME: 2010-07-10T22:35:00 * CAMPAIGN: AL356 * BASIS: Alkor (1990) (URI: https://www2.bsh.de/aktdat/dod/fahrtplanung/Alkor.htm) * METHOD/DEVICE: Active Controlled Flux Technique (ACFT) AL356_B9 * LATITUDE: 58.567000 * LONGITUDE: 18.246000 * DATE/TIME: 2010-07-10T23:05:00 * CAMPAIGN: AL356 * BASIS: Alkor (1990) (URI: https://www2.bsh.de/aktdat/dod/fahrtplanung/Alkor.htm) * METHOD/DEVICE: Active Controlled Flux Technique (ACFT) AL356_B10 * LATITUDE: 58.567000 * LONGITUDE: 16.240000 * DATE/TIME: 2010-07-11T19:15:00 * CAMPAIGN: AL356 * BASIS: Alkor (1990) (URI: https://www2.bsh.de/aktdat/dod/fahrtplanung/Alkor.htm) * METHOD/DEVICE: Active Controlled Flux Technique (ACFT) AL356_B11 * LATITUDE: 58.847000 * LONGITUDE: 16.206000 * DATE/TIME: 2010-07-11T19:45:00 * CAMPAIGN: AL356 * BASIS: Alkor (1990) (URI: https://www2.bsh.de/aktdat/dod/fahrtplanung/Alkor.htm) * METHOD/DEVICE: Active Controlled Flux Technique (ACFT) ARA2010_C1 * LATITUDE: 59.899000 * LONGITUDE: 21.502000 * DATE/TIME: 2010-09-15T18:05:00 * CAMPAIGN: ARA2010 * BASIS: Aranda (1989) (URI: https://en.wikipedia.org/wiki/Aranda_%281989_ship%29) * METHOD/DEVICE: Active Controlled Flux Technique (ACFT) ARA2010_C2 * LATITUDE: 59.899000 * LONGITUDE: 21.502000 * DATE/TIME: 2010-09-15T21:25:00 * CAMPAIGN: ARA2010 * BASIS: Aranda (1989) (URI: https://en.wikipedia.org/wiki/Aranda_%281989_ship%29) * METHOD/DEVICE: Active Controlled Flux Technique (ACFT) ARA2010_C3 * LATITUDE: 59.899000 * LONGITUDE: 21.502000 * DATE/TIME: 2010-09-16T04:15:00 * CAMPAIGN: ARA2010 * BASIS: Aranda (1989) (URI: https://en.wikipedia.org/wiki/Aranda_%281989_ship%29) * METHOD/DEVICE: Active Controlled Flux Technique (ACFT) ARA2010_C4 * LATITUDE: 59.899000 * LONGITUDE: 21.502000 * DATE/TIME: 2010-09-16T05:30:00 * CAMPAIGN: ARA2010 * BASIS: Aranda (1989) (URI: https://en.wikipedia.org/wiki/Aranda_%281989_ship%29) * METHOD/DEVICE: Active Controlled Flux Technique (ACFT) ARA2010_C5 * LATITUDE: 59.899000 * LONGITUDE: 21.502000 * DATE/TIME: 2010-09-16T16:10:00 * CAMPAIGN: ARA2010 * BASIS: Aranda (1989) (URI: https://en.wikipedia.org/wiki/Aranda_%281989_ship%29) * METHOD/DEVICE: Active Controlled Flux Technique (ACFT) ARA2010_C6 * LATITUDE: 59.899000 * LONGITUDE: 21.502000 * DATE/TIME: 2010-09-16T17:15:00 * CAMPAIGN: ARA2010 * BASIS: Aranda (1989) (URI: https://en.wikipedia.org/wiki/Aranda_%281989_ship%29) * METHOD/DEVICE: Active Controlled Flux Technique (ACFT) ARA2010_C7 * LATITUDE: 59.893000 * LONGITUDE: 21.486000 * DATE/TIME: 2010-09-16T20:55:00 * CAMPAIGN: ARA2010 * BASIS: Aranda (1989) (URI: https://en.wikipedia.org/wiki/Aranda_%281989_ship%29) * METHOD/DEVICE: Active Controlled Flux Technique (ACFT) ARA2010_C8 * LATITUDE: 59.893000 * LONGITUDE: 21.486000 * DATE/TIME: 2010-09-16T21:50:00 * CAMPAIGN: ARA2010 * BASIS: Aranda (1989) (URI: https://en.wikipedia.org/wiki/Aranda_%281989_ship%29) * METHOD/DEVICE: Active Controlled Flux Technique (ACFT) ARA2010_C9 * LATITUDE: 59.893000 * LONGITUDE: 21.486000 * DATE/TIME: 2010-09-17T04:15:00 * CAMPAIGN: ARA2010 * BASIS: Aranda (1989) (URI: https://en.wikipedia.org/wiki/Aranda_%281989_ship%29) * METHOD/DEVICE: Active Controlled Flux Technique (ACFT) ARA2010_C10 * LATITUDE: 59.893000 * LONGITUDE: 21.486000 * DATE/TIME: 2010-09-17T05:25:00 * CAMPAIGN: ARA2010 * BASIS: Aranda (1989) (URI: https://en.wikipedia.org/wiki/Aranda_%281989_ship%29) * METHOD/DEVICE: Active Controlled Flux Technique (ACFT) ARA2010_C11 * LATITUDE: 59.893000 * LONGITUDE: 21.486000 * DATE/TIME: 2010-09-17T16:15:00 * CAMPAIGN: ARA2010 * BASIS: Aranda (1989) (URI: https://en.wikipedia.org/wiki/Aranda_%281989_ship%29) * METHOD/DEVICE: Active Controlled Flux Technique (ACFT) ARA2010_C12 * LATITUDE: 59.893000 * LONGITUDE: 21.486000 * DATE/TIME: 2010-09-17T19:15:00 * CAMPAIGN: ARA2010 * BASIS: Aranda (1989) (URI: https://en.wikipedia.org/wiki/Aranda_%281989_ship%29) * METHOD/DEVICE: Active Controlled Flux Technique (ACFT) ARA2010_C13 * LATITUDE: 59.378000 * LONGITUDE: 21.441000 * DATE/TIME: 2010-09-18T13:04:00 * CAMPAIGN: ARA2010 * BASIS: Aranda (1989) (URI: https://en.wikipedia.org/wiki/Aranda_%281989_ship%29) * METHOD/DEVICE: Active Controlled Flux Technique (ACFT) ARA2010_C14 * LATITUDE: 59.378000 * LONGITUDE: 21.441000 * DATE/TIME: 2010-09-18T13:35:00 * CAMPAIGN: ARA2010 * BASIS: Aranda (1989) (URI: https://en.wikipedia.org/wiki/Aranda_%281989_ship%29) * METHOD/DEVICE: Active Controlled Flux Technique (ACFT) Parameter(s): Event label (Event) * PI: Krall, Kerstin E (https://orcid.org/0000-0003-0788-8025, kerstin.krall@iup.uni-heidelberg.de) DATE/TIME (Date/Time) * GEOCODE * PI: Krall, Kerstin E (https://orcid.org/0000-0003-0788-8025, kerstin.krall@iup.uni-heidelberg.de) LATITUDE (Latitude) * GEOCODE * PI: Krall, Kerstin E (https://orcid.org/0000-0003-0788-8025, kerstin.krall@iup.uni-heidelberg.de) LONGITUDE (Longitude) * GEOCODE * PI: Krall, Kerstin E (https://orcid.org/0000-0003-0788-8025, kerstin.krall@iup.uni-heidelberg.de) Wind velocity, west-east [m/s] (U) * PI: Krall, Kerstin E (https://orcid.org/0000-0003-0788-8025, kerstin.krall@iup.uni-heidelberg.de) * COMMENT: 10 m Standard error [±] (Std e) * PI: Krall, Kerstin E (https://orcid.org/0000-0003-0788-8025, kerstin.krall@iup.uni-heidelberg.de) * COMMENT: u_10 Temperature, water [°C] (Temp) * PI: Krall, Kerstin E (https://orcid.org/0000-0003-0788-8025, kerstin.krall@iup.uni-heidelberg.de) Air temperature at 10 m height [°C] (T10) * PI: Krall, Kerstin E (https://orcid.org/0000-0003-0788-8025, kerstin.krall@iup.uni-heidelberg.de) Transfer velocity, heat [cm/h] (kheat) * PI: Krall, Kerstin E (https://orcid.org/0000-0003-0788-8025, kerstin.krall@iup.uni-heidelberg.de) Number (No) * PI: Krall, Kerstin E (https://orcid.org/0000-0003-0788-8025, kerstin.krall@iup.uni-heidelberg.de) * COMMENT: Prandtl number Number (No) * PI: Krall, Kerstin E (https://orcid.org/0000-0003-0788-8025, kerstin.krall@iup.uni-heidelberg.de) * COMMENT: Schmidt exponent number Standard error [±] (Std e) * PI: Krall, Kerstin E (https://orcid.org/0000-0003-0788-8025, kerstin.krall@iup.uni-heidelberg.de) * COMMENT: n Transfer velocity, scaled [cm/h] (k600) * PI: Krall, Kerstin E (https://orcid.org/0000-0003-0788-8025, kerstin.krall@iup.uni-heidelberg.de) License: Creative Commons Attribution 4.0 International (CC-BY-4.0) (URI: https://creativecommons.org/licenses/by/4.0/) Size: 270 data points */ Event Date/Time Latitude Longitude U [m/s] (10 m) Std e [±] (u_10) Temp [°C] T10 [°C] kheat [cm/h] No (Prandtl number) No (Schmidt exponent number) Std e [±] (n) k600 [cm/h] AL336_A1 2009-04-28T19:55:00 55.002 13.169 8.47 0.17 7.3 10.8 159 74.8 10.38 0.534 0 AL336_A2 2009-04-30T02:30:00 55.122 13.103 12.40 0.33 7.4 8.2 196 40.4 10.38 0.505 0 AL336_A3 2009-05-01T20:05:00 56.389 17.591 5.29 0.31 5.7 6.4 110 25.6 11.00 0.600 0 AL336_A4 2009-05-02T20:20:00 57.337 20.016 6.81 0.23 6.2 8.0 117 24.8 10.81 0.563 0 AL336_A5 2009-05-03T20:45:00 57.366 19.904 7.62 0.47 6.5 7.9 180 16.8 10.70 0.547 0 AL356_B1 2010-07-02T00:05:00 54.951 19.233 4.00 0.30 17.0 15.8 217 103.3 7.63 0.630 0 AL356_B2 2010-07-02T00:35:00 55.064 19.175 3.90 0.30 16.6 15.8 140 20.9 7.74 0.632 0 AL356_B3 2010-07-03T06:05:00 57.383 19.490 1.60 0.20 17.9 17.7 147 17.2 7.30 0.664 0 AL356_B4 2010-07-03T23:05:00 57.658 21.653 3.60 0.20 18.4 18.5 130 17.6 7.30 0.639 0 AL356_B5 2010-07-04T22:05:00 57.903 22.594 4.00 0.50 19.5 20.1 103 16.7 7.09 0.630 0 AL356_B6 2010-07-05T20:30:00 59.857 19.643 6.70 0.10 15.2 16.4 155 16.3 8.10 0.566 0 AL356_B7 2010-07-08T18:50:00 65.215 22.638 8.40 0.30 14.5 16.2 169 46.1 8.23 0.535 0 AL356_B8 2010-07-10T22:35:00 58.561 18.244 2.60 0.30 18.9 20.9 249 35.7 7.19 0.655 0 AL356_B9 2010-07-10T23:05:00 58.567 18.246 1.60 0.30 18.9 20.4 227 59.2 7.19 0.664 0 AL356_B10 2010-07-11T19:15:00 58.567 16.240 9.70 0.10 19.6 22.4 225 37.6 6.99 0.520 0 AL356_B11 2010-07-11T19:45:00 58.847 16.206 9.30 0.30 19.9 0.0 198 23.0 6.99 0.524 0 ARA2010_C1 2010-09-15T18:05:00 59.899 21.502 10.40 0.60 14.9 13.3 144 25.7 8.07 0.515 0 ARA2010_C2 2010-09-15T21:25:00 59.899 21.502 9.20 0.80 14.8 13.8 138 21.8 8.10 0.525 0 ARA2010_C3 2010-09-16T04:15:00 59.899 21.502 13.60 0.70 14.9 14.1 144 38.9 8.07 0.502 0 ARA2010_C4 2010-09-16T05:30:00 59.899 21.502 14.80 1.60 14.9 14.0 201 30.7 8.07 0.500 0 ARA2010_C5 2010-09-16T16:10:00 59.899 21.502 13.50 1.50 14.9 13.9 177 37.8 8.07 0.503 0 ARA2010_C6 2010-09-16T17:15:00 59.899 21.502 13.50 1.10 14.9 13.7 180 70.5 8.07 0.502 0 ARA2010_C7 2010-09-16T20:55:00 59.893 21.486 10.00 1.00 14.8 13.6 142 65.0 8.10 0.517 0 ARA2010_C8 2010-09-16T21:50:00 59.893 21.486 10.10 0.60 14.7 14.0 119 16.3 8.12 0.517 0 ARA2010_C9 2010-09-17T04:15:00 59.893 21.486 10.70 0.80 14.5 13.7 166 27.9 8.17 0.512 0 ARA2010_C10 2010-09-17T05:25:00 59.893 21.486 10.80 0.90 14.6 13.7 146 24.0 8.14 0.512 0 ARA2010_C11 2010-09-17T16:15:00 59.893 21.486 11.30 0.80 14.6 13.4 142 31.4 8.14 0.510 0 ARA2010_C12 2010-09-17T19:15:00 59.893 21.486 9.80 0.60 14.5 13.6 122 34.8 8.17 0.519 0 ARA2010_C13 2010-09-18T13:04:00 59.378 21.441 11.00 1.00 14.0 12.2 268 49.2 8.29 0.511 0 ARA2010_C14 2010-09-18T13:35:00 59.378 21.441 10.80 0.70 13.2 11.3 210 29.4 8.49 0.512 0