Collections allows the user to search in subsets of the existing catalogue. The collections are primarily data management projects that have been incorporated in the ADC catalogue. The collections currently served through ADC include (datasets may belong to multiple data collections):
ADC is the full collection of this service CC is the CryoClim collection
In order to search a specific data collection select that collection. If no data collection is selected all collections are searched.
FRontiers in Arctic marine Monitoring, Long-term Investigation at AWI-Hausgarten off Svalbard, Physical Oceanography @ AWI (FRAM, Hausgarten, AWI_PhyOce)
Last metadata update: 2022-04-29T12:00:00Z
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Abstract:
Raw physical oceanography data was acquired by a ship-based Seabird SBE911+ CTD-Rosette system (Sensor URN: vessel:polarstern:ctd_sbe9plus_485) onboard RV Polarstern during research cruise PS126 to the Fram Strait as part of the long-term monitoring program at AWI HAUSGARTEN. The installed sensor suite provided duplicates of seawater conductivity (SBE4), temperature (SBE3), pressure (SBE5), depth (calculated), salinity (calculated), dissolved oxygen (SBE43), as well as chl-a fluorescence (Wetlabs FLRTD) and turbidity (Wetlabs C-STAR transmissiometer) within the water column. All sensors performed generally fine, except during one cast where the secondary oxygen sensor had issues below 4000m. ** For all details see the full metadata description at "https://doi.pangaea.de/10.1594/PANGAEA.940754"!
Current sea ice maps for Arctic and Antarctic, Multidisciplinary drifting Observatory for the Study of Arctic Climate, Sea Ice Physics @ AWI (meereisportal.de, MOSAiC, AWI_SeaIce)
Last metadata update: 2022-03-30T12:00:00Z
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Abstract:
Snow height was measured by the Snow Buoy 2020S105, an autonomous platform, installed on drifting sea ice in the Arctic Ocean during MOSAiC (Leg 5) 2019/20. The resulting time series describes the evolution of snow height as a function of place and time between 21 September 2020 and 12 April 2021 in sample intervals of 1 hour. The Snow Buoy consists of four independent acoustic range finder measurements representing the area (approx. 10 m**2) around the buoy. In addition to snow height, geographic position (GPS), barometric pressure, air temperature, and surface temperature were measured. Negative values of snow height occur if surface ablation continues into the sea ice. Thus, these measurements describe the position of the sea ice surface relative to the original snow-ice interface. Differences between single sensors indicate small-scale variability of the snow pack around the buoy. ** For all details see the full metadata description at "https://doi.pangaea.de/10.1594/PANGAEA.936342"! ** The data set has been processed and contains quality flags for different kinds for erroneous data. Flag values are the sum of individual error codes. The value of 0 refers to no error.
Quality flag, position: The geographic position is flagged +1 if the drift velocity, as derived from the GPS longitude and latitude, exceeds a threshold of 10 deg latitude or 50 deg longitude per time step; +2 if the position exceeds extreme values, such as longitude > 360 deg; +4 if the position is exactly 0.0.
Quality flag, snow: The snow height is flagged for each sensor +1 for manual corrections during processing (e.g. sensor issues); +2 if the snow accumulation exceeds 0.1 m per hour; +4 if the difference in snow height is larger than 0.03 m compared to values within the last and next 2 hours; +32 if the value exceeds the height of sensor on the platform at 1.5 m.
Quality flag, temperature: The air temperature is flagged +1 for manual corrections during processing (e.g. sensor issues); + 32 if the value is below – 50 °C.
Quality flag, pressure: The barometric pressure is flagged +1 for manual corrections during processing (e.g. sensor issues).
Current sea ice maps for Arctic and Antarctic, Multidisciplinary drifting Observatory for the Study of Arctic Climate, Sea Ice Physics @ AWI (meereisportal.de, MOSAiC, AWI_SeaIce)
Last metadata update: 2022-03-30T12:00:00Z
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Abstract:
Snow height was measured by the Snow Buoy 2020S109, an autonomous platform, installed on drifting sea ice in the Arctic Ocean during MOSAiC (Leg 5) 2019/20. The resulting time series describes the evolution of snow height as a function of place and time between 21 September 2020 and 27 September 2020 in sample intervals of 1 hour. The Snow Buoy consists of four independent acoustic range finder measurements representing the area (approx. 10 m**2) around the buoy. In addition to snow height, geographic position (GPS), barometric pressure, air temperature, and surface temperature were measured. Negative values of snow height occur if surface ablation continues into the sea ice. Thus, these measurements describe the position of the sea ice surface relative to the original snow-ice interface. Differences between single sensors indicate small-scale variability of the snow pack around the buoy. ** For all details see the full metadata description at "https://doi.pangaea.de/10.1594/PANGAEA.936343"! ** The data set has been processed and contains quality flags for different kinds for erroneous data. Flag values are the sum of individual error codes. The value of 0 refers to no error.
Quality flag, position: The geographic position is flagged +1 if the drift velocity, as derived from the GPS longitude and latitude, exceeds a threshold of 10 deg latitude or 50 deg longitude per time step; +2 if the position exceeds extreme values, such as longitude > 360 deg; +4 if the position is exactly 0.0.
Quality flag, snow: The snow height is flagged for each sensor +1 for manual corrections during processing (e.g. sensor issues); +2 if the snow accumulation exceeds 0.1 m per hour; +4 if the difference in snow height is larger than 0.03 m compared to values within the last and next 2 hours; +32 if the value exceeds the height of sensor on the platform at 1.5 m.
Quality flag, temperature: The air temperature is flagged +1 for manual corrections during processing (e.g. sensor issues); + 32 if the value is below – 50 °C.
Quality flag, pressure: The barometric pressure is flagged +1 for manual corrections during processing (e.g. sensor issues).
FRontiers in Arctic marine Monitoring, Long-term Investigation at AWI-Hausgarten off Svalbard (FRAM, Hausgarten)
Last metadata update: 2022-04-29T12:00:00Z
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Abstract:
During the RV MARIA S. MERIAN cruise to the Svalbard Archipelago and the Fram Strait during September - October 2020 the Ocean Floor Observation and Bathymetry System (OFOBS) was used to collect still and video images, as well as sidescan data, from various locations surveyed during the research cruise.
The OFOBS system consisted of a towed underwater camera system equipped with both a high-resolution photo-camera (iSiTEC, CANON EOS 5D Mark III) and a high-definition video-camera (iSiTEC, Sony FCB-H11) as well as an integrated sidescan sonar system. The cameras were mounted on a steel frame (140L x 92W x 135H cm), together with two strobe lights (iSiTEC UW-Blitz 250, TTL driven), three laser pointers spaced with a distance of 50 cm used to estimate the size of seafloor structures, four LED lights, and a USBL positioning system (Posidonia) to track the position of the OFOBS during deployments, with additional positioning information provided by the integrated INS and DVL systems.
In automatic mode, a seabed photo, depicting an area of approximately 4 m², with variations depending on the actual height above ground, was taken every ~15 seconds to obtain series of "TIMER" stills distributed at regular distances along each of the survey profiles. Profile lengths varied in length depending on duration of the cast, usually determined by sea state conditions at time of survey. At a ship speed of 0.5 kn, the average distance between seabed images was approximately 5 m. Ship speed was however greatly influenced by ice conditions. Additional "HOTKEY" photos were taken from interesting objects (organisms, seabed features, etc) when they appeared in the live video feed. ** For all details see the full metadata description at "https://doi.pangaea.de/10.1594/PANGAEA.928815"!
Current sea ice maps for Arctic and Antarctic, Multidisciplinary drifting Observatory for the Study of Arctic Climate, Multidisciplinary Ice-based Distributed Observatory, Sea Ice Physics @ AWI (meereisportal.de, MOSAiC, MIDO, AWI_SeaIce)
Last metadata update: 2022-03-30T12:00:00Z
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Abstract:
Snow height was measured by the Snow Buoy 2020S98, an autonomous platform, installed on drifting sea ice in the Arctic Ocean during MOSAiC (Leg 5) 2019/20. The resulting time series describes the evolution of snow height as a function of place and time between 17 September 2020 and 01 July 2021 in sample intervals of 1 hour. The Snow Buoy consists of four independent acoustic range finder measurements representing the area (approx. 10 m**2) around the buoy. In addition to snow height, geographic position (GPS), barometric pressure, air temperature, and surface temperature were measured. Negative values of snow height occur if surface ablation continues into the sea ice. Thus, these measurements describe the position of the sea ice surface relative to the original snow-ice interface. Differences between single sensors indicate small-scale variability of the snow pack around the buoy. ** For all details see the full metadata description at "https://doi.pangaea.de/10.1594/PANGAEA.937173"! ** The data set has been processed and contains quality flags for different kinds for erroneous data. Flag values are the sum of individual error codes. The value of 0 refers to no error.
Quality flag, position: The geographic position is flagged +1 if the drift velocity, as derived from the GPS longitude and latitude, exceeds a threshold of 10 deg latitude or 50 deg longitude per time step; +2 if the position exceeds extreme values, such as longitude > 360 deg; +4 if the position is exactly 0.0.
Quality flag, snow: The snow height is flagged for each sensor +1 for manual corrections during processing (e.g. sensor issues); +2 if the snow accumulation exceeds 0.1 m per hour; +4 if the difference in snow height is larger than 0.03 m compared to values within the last and next 2 hours; +32 if the value exceeds the height of sensor on the platform at 1.5 m.
Quality flag, temperature: The air temperature is flagged +1 for manual corrections during processing (e.g. sensor issues); + 32 if the value is below – 50 °C.
Quality flag, pressure: The barometric pressure is flagged +1 for manual corrections during processing (e.g. sensor issues).
FRontiers in Arctic marine Monitoring, Long-term Investigation at AWI-Hausgarten off Svalbard (FRAM, Hausgarten)
Last metadata update: 2022-04-25T12:00:00Z
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Abstract:
During the RV MARIA S. MERIAN cruise to the Svalbard Archipelago and the Fram Strait during September - October 2020 a SeaBird SBE 911Plus CTD was deployed at twelve different stations and various physical parameters were measured. The measured parameters and the respective sensor details were: Pressure (Paroscientific, Digiquartz), Temperature (2 x SBE 3, ITS-90 °C), Conductivity (2x SBE 4), Oxygen concentrations (2x SBE 43), Fluorescence (WET Labs ECO-AFL/FL) and Turbidity (WET LABS ECO). ** For all details see the full metadata description at "https://doi.pangaea.de/10.1594/PANGAEA.943220"!
