Inherent optical data collected in Storfjorden (Svalbard) in June 2020 onboard the coast guard vessel KV Svalbard during the Useful Arctic Knowledge project summer school. This data was collected as part of the Nansen Legacy project. Optical data collected includes in situ measurements of absorption and attenuation, accompanied by in situ profiles of salinity, temperature, pressure (CTD) and dissolved organic matter fluorescence (3-channel fluorometer).
Water samples were collected for measurements of dissolved (colored dissolved organic matter, CDOM) absorption, and material was collected on filters for determination of particulate absorption by phytoplankton and non-algal particles.
The CSV files in this collection include the spectral measurements of optical properties as follows:
icam_aphy.csv: Phytoplankton absorption coefficient (in 1/m) as measured with the QFT-ICAM technique
icam_anap.csv: Non-algal particle absorption coefficient (in 1/m) as measured with the QFT-ICAM technique
Perkin_ap.csv: Total particle absorption coefficient (1/m) as measured with the QFT_Perkin technique
O18.csv: Oxygen isotope ratio (δ18O, in ‰ against VSMOW)
acs_fdom_ctd: High vertical resolution in situ cast data: total non-water absorption (1/m) and attenuation (1/m), Fluorescence by Dissolved Organic Matter (FDOM, raw digital signal counts), water salinity (practical salinity scale) and temperature (degrees Celsius).
FDOM was measured at three excitation/emission pairs as follows: Channel 1 (Ch1, 310/450 nm) that represents marine ultraviolet humic-like and marine humic-like material; for Channel 2 (Ch2, 280/450 nm) represents terrestrial humic-like material; and for Channel 3 (Ch3, 280/350 nm) represents protein-like tryptophane type material.
Variability in temperature, salinity and velocity was observed approximately 1.5 m beneath the base of Thwaites Glacier in the grounding zone region of the Eastern Ice Shelf as part of the International Thwaites Glacier Collaboration MELT project. Using a borehole deployable turbulence instrument cluster, the average temperature, salinity and velocity was observed over a 15-minute period every 2 hours.
Funding was provided by NSFPLR-NERC: Melting at Thwaites grounding zone and its control on sea level (THWAITES-MELT) NE/S006761/1.
ESA CIMR MRC, ESA CCI Sea Ice Phase 2 (Not available, Not available)
Institutions: Norwegian Meteorological Institute
Last metadata update: 2020-12-01T12:51:13Z
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Underlying dataset for the Lavergne et al. (2020) manuscript in EGU The Cryosphere Discussion. Processed from GCOM-W1 AMSR2 36.5 GHz (Ka-band) imagery. See the manuscript for more details.
ESA CIMR MRC, ESA CCI Sea Ice Phase 2 (Not available, Not available)
Institutions: Norwegian Meteorological Institute
Last metadata update: 2020-12-01T10:17:46Z
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Abstract:
Underlying dataset for the Lavergne et al. (2020) manuscript in EGU The Cryosphere Discussion. Processed from GCOM-W1 AMSR2 36.5 GHz (Ka-band) imagery. See the manuscript for more details.
Institutions: British Antarctic Survey, British Antarctic Survey, Polar Data Centre,Natural Environment Research Council,UK Research & Innovation
Last metadata update: 2022-03-22T01:00:00Z
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This data set provides processed Ku- and Ka-band fully-polarimetric backscatter and derived polarimetric parameters from hourly scans, acquired using the KuKa radar, during Legs 1, 2, 4 and 5 of the 2019-2020 MOSAiC International Arctic Drift Expedition. Scans were acquired during winter (Legs 1 and 2), advanced melt (leg 4) and freeze-up (Leg 5) seasons, from various Remote Sensing (RS) sites, located in the MOSAiC ice floe. The first deployment of the KuKa radar was on 18 October 2019 at RS1 site and the radar was retreated (due to ice break up) on 18th November. The radar was redeployed on 29th November at RS2 site until 13th December when cracks were observed at the site and the instrument was turned off and moved to a safe location. The radar was redeployed at RS3 site and started measuring again on 21st December 2019 until 31st January 2020, after which the radar was taken off the RS site to conduct maintenance. The radar was not operational during Leg 3. During Leg 4, the radar was operational between 25th June and 19th July 2020, and later retreated back to the ship, for deployment in Leg 5. The radar was deployed on 24th August 2020 and operational until the end of the MOSAiC expedition. The dataset was collected by MOSAiC Team ICE participants and processed by Vishnu Nandan at the University of Manitoba, Canada.
This work was funded in part through NERC grant NE/S002510/1, the Canada 150 Chair Program and the European Space Agency PO 5001027396. The authors thank Marine Environmental Observation, Prediction and Response Network (MEOPAR) Postdoctoral Fellowship grant to Vishnu Nandan. The authors also thank the crew of R/V Polarstern and all scientific members of the MOSAiC expedition for their support in field logistics and field data collection.
***** PLEASE BE ADVISED TO USE VERSION 2.0 DATA *****
The VERSION 2.0 data set (see ''Related Data Set Metadata'' link below) has been corrected for a bug that was found in the original KuKa radar processing chain.
Institutions: British Antarctic Survey, British Antarctic Survey, NERC EDS UK Polar Data Centre
Last metadata update: 2022-03-22T01:00:00Z
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Abstract:
This data set provides processed Ku- and Ka-band fully-polarimetric backscatter and derived polarimetric parameters from hourly scans, acquired using the KuKa radar, during Legs 1, 2, 4 and 5 of the 2019-2020 MOSAiC International Arctic Drift Expedition. Scans were acquired during winter (Legs 1 and 2), advanced melt (Leg 4) and freeze-up (Leg 5) seasons, from various Remote Sensing (RS) sites, located in the MOSAiC ice floe. The first deployment of the KuKa radar was on 18 October 2019 at RS1 site and the radar was retreated (due to ice break up) on 18th November. The radar was redeployed on 29th November at RS2 site until 13th December when cracks were observed at the site and the instrument was turned off and moved to a safe location. The radar was redeployed at RS3 site and started measuring again on 21st December 2019 until 31st January 2020, after which the radar was taken off the RS site to conduct maintenance. The radar was not operational during Leg 3. During Leg 4, the radar was operational between 25th June and 19th July 2020, and later retreated back to the ship, for deployment in Leg 5. The radar was deployed on 24th August 2020 and operational until the end of the MOSAiC expedition. The dataset was collected by MOSAiC Team ICE participants and processed by Vishnu Nandan at the University of Manitoba, Canada.
This work was funded in part through NERC grant NE/S002510/1, the Canada 150 Chair Program and the European Space Agency PO 5001027396. The authors thank Marine Environmental Observation, Prediction and Response Network (MEOPAR) Postdoctoral Fellowship grant to Vishnu Nandan. The authors also thank the crew of R/V Polarstern and all scientific members of the MOSAiC expedition for their support in field logistics and field data collection.
ESA CIMR MRC, ESA CCI Sea Ice Phase 2 (Not available, Not available)
Institutions: Norwegian Meteorological Institute
Last metadata update: 2020-12-01T11:34:35Z
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Abstract:
Underlying dataset for the Lavergne et al. (2020) manuscript in EGU The Cryosphere Discussion. Processed from GCOM-W1 AMSR2 36.5 GHz (Ka-band) imagery. See the manuscript for more details.
ESA CIMR MRC, ESA CCI Sea Ice Phase 2 (Not available, Not available)
Institutions: Norwegian Meteorological Institute
Last metadata update: 2020-12-01T10:18:34Z
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Abstract:
Underlying dataset for the Lavergne et al. (2020) manuscript in EGU The Cryosphere Discussion. Processed from GCOM-W1 AMSR2 36.5 GHz (Ka-band) imagery. See the manuscript for more details.
The CTD measurements were collected in Isfjorden (78°70’ N-78°27’ N, 13°-17° E), Spitsbergen during the cruises on the R/V Oceania conducted by the Institute of Oceanology of the Polish Academy of Sciences (IO PAN) in the late July – early August surveys (covering the main melting season) in 2013–2019 (24-25 July 2013, 24 July 2014, 10 August 2015, 9-10 August 2016, 12-13 August 2017, 2-3 August 2018, 26-27 July 2019). The continuous, high resolution laser-based measurements were performed within the upper 70-m water column along a 60-km transect crossing Isfjorden, starting from sampling station located at the mouth of the southern branch of Isfjorden – Adventfjorden (ISA), through station in the central part of Isfjorden (ISF3 sampling station) up to the innermost part of Billefjorden (BAB sampling station). A conductivity-temperature-depth sensors (CTD, SBE 911plus, Seabird Electronics Inc., USA) and a fluorometer (Seapoint Sensors Inc., USA) were used to collect presented data.
The CTD measurements were collected in Isfjorden (78°70’ N-78°27’ N, 13°-17° E), Spitsbergen during the cruises on the R/V Oceania conducted by the Institute of Oceanology of the Polish Academy of Sciences (IO PAN) in the late July – early August surveys (covering the main melting season) in 2013–2019 (24-25 July 2013, 24 July 2014, 10 August 2015, 9-10 August 2016, 12-13 August 2017, 2-3 August 2018, 26-27 July 2019). The continuous, high resolution laser-based measurements were performed within the upper 70-m water column along a 60-km transect crossing Isfjorden, starting from sampling station located at the mouth of the southern branch of Isfjorden – Adventfjorden (ISA), through station in the central part of Isfjorden (ISF3 sampling station) up to the innermost part of Billefjorden (BAB sampling station). A conductivity-temperature-depth sensors (CTD, SBE 911plus, Seabird Electronics Inc., USA) and a fluorometer (Seapoint Sensors Inc., USA) were used to collect presented data.
The CTD measurements were collected in Isfjorden (78°70’ N-78°27’ N, 13°-17° E), Spitsbergen during the cruises on the R/V Oceania conducted by the Institute of Oceanology of the Polish Academy of Sciences (IO PAN) in the late July – early August surveys (covering the main melting season) in 2013–2019 (24-25 July 2013, 24 July 2014, 10 August 2015, 9-10 August 2016, 12-13 August 2017, 2-3 August 2018, 26-27 July 2019). The continuous, high resolution laser-based measurements were performed within the upper 70-m water column along a 60-km transect crossing Isfjorden, starting from sampling station located at the mouth of the southern branch of Isfjorden – Adventfjorden (ISA), through station in the central part of Isfjorden (ISF3 sampling station) up to the innermost part of Billefjorden (BAB sampling station). A conductivity-temperature-depth sensors (CTD, SBE 911plus, Seabird Electronics Inc., USA) and a fluorometer (Seapoint Sensors Inc., USA) were used to collect presented data.
The CTD measurements were collected in Isfjorden (78°70’ N-78°27’ N, 13°-17° E), Spitsbergen during the cruises on the R/V Oceania conducted by the Institute of Oceanology of the Polish Academy of Sciences (IO PAN) in the late July – early August surveys (covering the main melting season) in 2013–2019 (24-25 July 2013, 24 July 2014, 10 August 2015, 9-10 August 2016, 12-13 August 2017, 2-3 August 2018, 26-27 July 2019). The continuous, high resolution laser-based measurements were performed within the upper 70-m water column along a 60-km transect crossing Isfjorden, starting from sampling station located at the mouth of the southern branch of Isfjorden – Adventfjorden (ISA), through station in the central part of Isfjorden (ISF3 sampling station) up to the innermost part of Billefjorden (BAB sampling station). A conductivity-temperature-depth sensors (CTD, SBE 911plus, Seabird Electronics Inc., USA) and a fluorometer (Seapoint Sensors Inc., USA) were used to collect presented data.
The CTD measurements were collected in Isfjorden (78°70’ N-78°27’ N, 13°-17° E), Spitsbergen during the cruises on the R/V Oceania conducted by the Institute of Oceanology of the Polish Academy of Sciences (IO PAN) in the late July – early August surveys (covering the main melting season) in 2013–2019 (24-25 July 2013, 24 July 2014, 10 August 2015, 9-10 August 2016, 12-13 August 2017, 2-3 August 2018, 26-27 July 2019). The continuous, high resolution laser-based measurements were performed within the upper 70-m water column along a 60-km transect crossing Isfjorden, starting from sampling station located at the mouth of the southern branch of Isfjorden – Adventfjorden (ISA), through station in the central part of Isfjorden (ISF3 sampling station) up to the innermost part of Billefjorden (BAB sampling station). A conductivity-temperature-depth sensors (CTD, SBE 911plus, Seabird Electronics Inc., USA) and a fluorometer (Seapoint Sensors Inc., USA) were used to collect presented data.
The CTD measurements were collected in Isfjorden (78°70’ N-78°27’ N, 13°-17° E), Spitsbergen during the cruises on the R/V Oceania conducted by the Institute of Oceanology of the Polish Academy of Sciences (IO PAN) in the late July – early August surveys (covering the main melting season) in 2013–2019 (24-25 July 2013, 24 July 2014, 10 August 2015, 9-10 August 2016, 12-13 August 2017, 2-3 August 2018, 26-27 July 2019). The continuous, high resolution laser-based measurements were performed within the upper 70-m water column along a 60-km transect crossing Isfjorden, starting from sampling station located at the mouth of the southern branch of Isfjorden – Adventfjorden (ISA), through station in the central part of Isfjorden (ISF3 sampling station) up to the innermost part of Billefjorden (BAB sampling station). A conductivity-temperature-depth sensors (CTD, SBE 911plus, Seabird Electronics Inc., USA) and a fluorometer (Seapoint Sensors Inc., USA) were used to collect presented data.
The CTD measurements were collected in Isfjorden (78°70’ N-78°27’ N, 13°-17° E), Spitsbergen during the cruises on the R/V Oceania conducted by the Institute of Oceanology of the Polish Academy of Sciences (IO PAN) in the late July – early August surveys (covering the main melting season) in 2013–2019 (24-25 July 2013, 24 July 2014, 10 August 2015, 9-10 August 2016, 12-13 August 2017, 2-3 August 2018, 26-27 July 2019). The continuous, high resolution laser-based measurements were performed within the upper 70-m water column along a 60-km transect crossing Isfjorden, starting from sampling station located at the mouth of the southern branch of Isfjorden – Adventfjorden (ISA), through station in the central part of Isfjorden (ISF3 sampling station) up to the innermost part of Billefjorden (BAB sampling station). A conductivity-temperature-depth sensors (CTD, SBE 911plus, Seabird Electronics Inc., USA) and a fluorometer (Seapoint Sensors Inc., USA) were used to collect presented data.
