Mean spectral diffuse attenuation coefficients from 320 to 917 nm from high spectrally resolved radiometric underwater light transmission profiles obtained by an undulating platform towed behind the ship
Radiometric data was collected on Polarstern expedition PS113, crossing the Atlantic from the Patagonian Shelf to the English Channel with an irradiance sensors (RAMSES ACC-2-VIS, TriOS GmbH, Germany) covering the wavelength region from 320 nm to 917 nm with a spectral sampling of 3.3. nm, resolutio...
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Language: | English |
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PANGAEA
2022
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Online Access: | https://doi.pangaea.de/10.1594/PANGAEA.939927 https://doi.org/10.1594/PANGAEA.939927 |
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ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.939927 |
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openpolar |
institution |
Open Polar |
collection |
PANGAEA - Data Publisher for Earth & Environmental Science |
op_collection_id |
ftpangaea |
language |
English |
topic |
AC3 ANT-XXXIII/4 Arctic Amplification Atlantic Ocean transect CTD-TRIAXUS DATE/TIME DEPTH water diffuse attenuation coefficient downward at 320 nm downward at 323 nm downward at 326 nm downward at 329 nm downward at 332 nm downward at 335 nm downward at 338 nm downward at 341 nm downward at 344 nm downward at 347 nm downward at 350 nm downward at 353 nm downward at 356 nm downward at 359 nm downward at 362 nm downward at 365 nm downward at 368 nm downward at 371 nm downward at 374 nm downward at 377 nm |
spellingShingle |
AC3 ANT-XXXIII/4 Arctic Amplification Atlantic Ocean transect CTD-TRIAXUS DATE/TIME DEPTH water diffuse attenuation coefficient downward at 320 nm downward at 323 nm downward at 326 nm downward at 329 nm downward at 332 nm downward at 335 nm downward at 338 nm downward at 341 nm downward at 344 nm downward at 347 nm downward at 350 nm downward at 353 nm downward at 356 nm downward at 359 nm downward at 362 nm downward at 365 nm downward at 368 nm downward at 371 nm downward at 374 nm downward at 377 nm Bracher, Astrid Dinter, Tilman von Appen, Wilken-Jon Mean spectral diffuse attenuation coefficients from 320 to 917 nm from high spectrally resolved radiometric underwater light transmission profiles obtained by an undulating platform towed behind the ship |
topic_facet |
AC3 ANT-XXXIII/4 Arctic Amplification Atlantic Ocean transect CTD-TRIAXUS DATE/TIME DEPTH water diffuse attenuation coefficient downward at 320 nm downward at 323 nm downward at 326 nm downward at 329 nm downward at 332 nm downward at 335 nm downward at 338 nm downward at 341 nm downward at 344 nm downward at 347 nm downward at 350 nm downward at 353 nm downward at 356 nm downward at 359 nm downward at 362 nm downward at 365 nm downward at 368 nm downward at 371 nm downward at 374 nm downward at 377 nm |
description |
Radiometric data was collected on Polarstern expedition PS113, crossing the Atlantic from the Patagonian Shelf to the English Channel with an irradiance sensors (RAMSES ACC-2-VIS, TriOS GmbH, Germany) covering the wavelength region from 320 nm to 917 nm with a spectral sampling of 3.3. nm, resolution of 10 nm, and accuracy of 0.3 nm. The sensor was mounted on an undulating platform (Triaxus, extended version, MacArtney, Denmark) towed behind the research vessel at a speed of 8 knots for several transects along the cruise track and measured the underwater downwelling irradiance Ed(z, λ). Vertical movement of the Triaxus was 1 m/s. The depth was determined with a Seabird CTD mounted to the Triaxus and the inclination in all directions was recorded by the Triaxus hardware (details in von Appen et al. 2020). Measurements were taken with automatically adjusted integration times between 4 ms and 8 s. Data of a light profile was only processed if the euphotic depth was reached and values of the downwelling irradiance at 15 m depth and a wavelength of 400 nm were greater than 150 mW m−2 nm−1. Radiometric data from 6 transects (on 19, 21, 22, 24, 25, and 27 May 2018) between 2 and 48 hours duration were identified useful for determining Kd(λ). Generally, profile measurements were only valid if the instrument's inclination in either dimension was < 14°. Another RAMSES ACC-2-VIS sensor mounted on top of the ship recorded the incident downwelling irradiance above the surface Ed(λ, 0 + ), to correct for incident sunlight variations. Mean Kd was calculated from Ed(z, λ) profiles mostly over the depth interval 7 to 30 m, some 7 to 60 m. Details on measurement procedure and determination of Kd can be found in Bracher et al. (2020a, 2020b). |
format |
Dataset |
author |
Bracher, Astrid Dinter, Tilman von Appen, Wilken-Jon |
author_facet |
Bracher, Astrid Dinter, Tilman von Appen, Wilken-Jon |
author_sort |
Bracher, Astrid |
title |
Mean spectral diffuse attenuation coefficients from 320 to 917 nm from high spectrally resolved radiometric underwater light transmission profiles obtained by an undulating platform towed behind the ship |
title_short |
Mean spectral diffuse attenuation coefficients from 320 to 917 nm from high spectrally resolved radiometric underwater light transmission profiles obtained by an undulating platform towed behind the ship |
title_full |
Mean spectral diffuse attenuation coefficients from 320 to 917 nm from high spectrally resolved radiometric underwater light transmission profiles obtained by an undulating platform towed behind the ship |
title_fullStr |
Mean spectral diffuse attenuation coefficients from 320 to 917 nm from high spectrally resolved radiometric underwater light transmission profiles obtained by an undulating platform towed behind the ship |
title_full_unstemmed |
Mean spectral diffuse attenuation coefficients from 320 to 917 nm from high spectrally resolved radiometric underwater light transmission profiles obtained by an undulating platform towed behind the ship |
title_sort |
mean spectral diffuse attenuation coefficients from 320 to 917 nm from high spectrally resolved radiometric underwater light transmission profiles obtained by an undulating platform towed behind the ship |
publisher |
PANGAEA |
publishDate |
2022 |
url |
https://doi.pangaea.de/10.1594/PANGAEA.939927 https://doi.org/10.1594/PANGAEA.939927 |
op_coverage |
MEDIAN LATITUDE: -7.997449 * MEDIAN LONGITUDE: -28.208325 * SOUTH-BOUND LATITUDE: -19.455381 * WEST-BOUND LONGITUDE: -33.533041 * NORTH-BOUND LATITUDE: 8.823780 * EAST-BOUND LONGITUDE: -23.372737 * DATE/TIME START: 2018-05-19T13:42:59 * DATE/TIME END: 2018-05-27T16:07:10 * MINIMUM DEPTH, water: 7 m * MAXIMUM DEPTH, water: 60 m |
long_lat |
ENVELOPE(-33.533041,-23.372737,8.823780,-19.455381) |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic |
genre_facet |
Arctic |
op_relation |
Oelker, Julia; Losa, Svetlana N; Richter, Andreas; Bracher, Astrid (2022): TROPOMI-retrieved underwater light attenuation in three spectral regions in the ultraviolet to blue. Frontiers in Marine Science, 9, https://doi.org/10.3389/fmars.2022.787992 Bracher, Astrid; Xi, Hongyan; Dinter, Tilman (2020): High resolution phytoplankton group Chlorophyll a data from high spectrally resolved radiometric underwater light transmission profiles obtained by an undulating platform towed behind the ship during POLARSTERN cruise PS113 in the Atlantic Ocean [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.913517 Bracher, Astrid; Xi, Hongyan; Dinter, Tilman; Mangin, Antoine; Strass, Volker H; von Appen, Wilken-Jon; Wiegmann, Sonja (2020): High resolution water column phytoplankton composition across the Atlantic Ocean from ship-towed vertical undulating radiometry. Frontiers in Marine Science, https://doi.org/10.3389/fmars.2020.00235 von Appen, Wilken-Jon; Strass, Volker H; Bracher, Astrid; Xi, Hongyan; Hörstmann, Cora; Iversen, Morten Hvitfeldt; Waite, Anya M (2020): High-resolution physical–biogeochemical structure of a filament and an eddy of upwelled water off northwest Africa. Ocean Science, 16(1), 253-270, https://doi.org/10.5194/os-16-253-2020 https://doi.pangaea.de/10.1594/PANGAEA.939927 https://doi.org/10.1594/PANGAEA.939927 |
op_rights |
CC-BY-4.0: Creative Commons Attribution 4.0 International Access constraints: unrestricted info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1594/PANGAEA.93992710.3389/fmars.2022.78799210.1594/PANGAEA.91351710.3389/fmars.2020.0023510.5194/os-16-253-2020 |
_version_ |
1809898078188077056 |
spelling |
ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.939927 2024-09-09T19:28:46+00:00 Mean spectral diffuse attenuation coefficients from 320 to 917 nm from high spectrally resolved radiometric underwater light transmission profiles obtained by an undulating platform towed behind the ship Bracher, Astrid Dinter, Tilman von Appen, Wilken-Jon MEDIAN LATITUDE: -7.997449 * MEDIAN LONGITUDE: -28.208325 * SOUTH-BOUND LATITUDE: -19.455381 * WEST-BOUND LONGITUDE: -33.533041 * NORTH-BOUND LATITUDE: 8.823780 * EAST-BOUND LONGITUDE: -23.372737 * DATE/TIME START: 2018-05-19T13:42:59 * DATE/TIME END: 2018-05-27T16:07:10 * MINIMUM DEPTH, water: 7 m * MAXIMUM DEPTH, water: 60 m 2022 text/tab-separated-values, 31000 data points https://doi.pangaea.de/10.1594/PANGAEA.939927 https://doi.org/10.1594/PANGAEA.939927 en eng PANGAEA Oelker, Julia; Losa, Svetlana N; Richter, Andreas; Bracher, Astrid (2022): TROPOMI-retrieved underwater light attenuation in three spectral regions in the ultraviolet to blue. Frontiers in Marine Science, 9, https://doi.org/10.3389/fmars.2022.787992 Bracher, Astrid; Xi, Hongyan; Dinter, Tilman (2020): High resolution phytoplankton group Chlorophyll a data from high spectrally resolved radiometric underwater light transmission profiles obtained by an undulating platform towed behind the ship during POLARSTERN cruise PS113 in the Atlantic Ocean [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.913517 Bracher, Astrid; Xi, Hongyan; Dinter, Tilman; Mangin, Antoine; Strass, Volker H; von Appen, Wilken-Jon; Wiegmann, Sonja (2020): High resolution water column phytoplankton composition across the Atlantic Ocean from ship-towed vertical undulating radiometry. Frontiers in Marine Science, https://doi.org/10.3389/fmars.2020.00235 von Appen, Wilken-Jon; Strass, Volker H; Bracher, Astrid; Xi, Hongyan; Hörstmann, Cora; Iversen, Morten Hvitfeldt; Waite, Anya M (2020): High-resolution physical–biogeochemical structure of a filament and an eddy of upwelled water off northwest Africa. Ocean Science, 16(1), 253-270, https://doi.org/10.5194/os-16-253-2020 https://doi.pangaea.de/10.1594/PANGAEA.939927 https://doi.org/10.1594/PANGAEA.939927 CC-BY-4.0: Creative Commons Attribution 4.0 International Access constraints: unrestricted info:eu-repo/semantics/openAccess AC3 ANT-XXXIII/4 Arctic Amplification Atlantic Ocean transect CTD-TRIAXUS DATE/TIME DEPTH water diffuse attenuation coefficient downward at 320 nm downward at 323 nm downward at 326 nm downward at 329 nm downward at 332 nm downward at 335 nm downward at 338 nm downward at 341 nm downward at 344 nm downward at 347 nm downward at 350 nm downward at 353 nm downward at 356 nm downward at 359 nm downward at 362 nm downward at 365 nm downward at 368 nm downward at 371 nm downward at 374 nm downward at 377 nm dataset 2022 ftpangaea https://doi.org/10.1594/PANGAEA.93992710.3389/fmars.2022.78799210.1594/PANGAEA.91351710.3389/fmars.2020.0023510.5194/os-16-253-2020 2024-08-21T00:02:27Z Radiometric data was collected on Polarstern expedition PS113, crossing the Atlantic from the Patagonian Shelf to the English Channel with an irradiance sensors (RAMSES ACC-2-VIS, TriOS GmbH, Germany) covering the wavelength region from 320 nm to 917 nm with a spectral sampling of 3.3. nm, resolution of 10 nm, and accuracy of 0.3 nm. The sensor was mounted on an undulating platform (Triaxus, extended version, MacArtney, Denmark) towed behind the research vessel at a speed of 8 knots for several transects along the cruise track and measured the underwater downwelling irradiance Ed(z, λ). Vertical movement of the Triaxus was 1 m/s. The depth was determined with a Seabird CTD mounted to the Triaxus and the inclination in all directions was recorded by the Triaxus hardware (details in von Appen et al. 2020). Measurements were taken with automatically adjusted integration times between 4 ms and 8 s. Data of a light profile was only processed if the euphotic depth was reached and values of the downwelling irradiance at 15 m depth and a wavelength of 400 nm were greater than 150 mW m−2 nm−1. Radiometric data from 6 transects (on 19, 21, 22, 24, 25, and 27 May 2018) between 2 and 48 hours duration were identified useful for determining Kd(λ). Generally, profile measurements were only valid if the instrument's inclination in either dimension was < 14°. Another RAMSES ACC-2-VIS sensor mounted on top of the ship recorded the incident downwelling irradiance above the surface Ed(λ, 0 + ), to correct for incident sunlight variations. Mean Kd was calculated from Ed(z, λ) profiles mostly over the depth interval 7 to 30 m, some 7 to 60 m. Details on measurement procedure and determination of Kd can be found in Bracher et al. (2020a, 2020b). Dataset Arctic PANGAEA - Data Publisher for Earth & Environmental Science Arctic ENVELOPE(-33.533041,-23.372737,8.823780,-19.455381) |