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High-resolution measurements of essential climate variables in the North Sea from the autonomous surface vehicle HALOBATES during RV Heincke cruise HE644

Description: The file contains data from the autonomous surface vehicle HALOBATES. It gathered Essential Climate Variables (ECVs) like sea surface temperature (SST) and salinity (SSS). Data were collected during RV Heincke cruise HE644 from 10 to 31 July 2024 in the German Bight, North Sea. HALOBATES measured conductivity, temperature and pH at seven depths. Vertical resolution was ~10 centimetres. Depths spanned the near-surface layer (NSL, at 30, 40, 50, 60, 85, and 100 cm) to the sea-surface microlayer (SML, ~ 80 µm). NSL water was collected with tubes on a bow-mounted ladder. SML water was collected using six partially submerged glass disks. Water from all sampled depths, including the SML, reached the CTD sensors via a pumped flow-through system. Additional temperature sensors were mounted beneath the catamaran corresponding to depths of the flow-through system inlets. Salinity was corrected with discrete water samples. Additionally, offsets between the CTDs were corrected. Two data loggers with meteorological stations recorded wind speed, air temperature, relative humidity, solar radiation, GPS positions, and others. Upward and downward facing pyranometers and pyrgeometers mounted on the research vessel measured net radiative fluxes for short- and longwave radiation. A disdrometer also mounted on the vessel measured precipitation. The research vessel kept an average distance of 500 metres from HALOBATES which was operated manually or via autopilot. Autopilot involved pre-defined waypoints whilst manual involved steering HALOBATES with a remote control or drifting with surface currents during station work. The dataset includes quality flags 0-4 with flags 1 and 2 are ready for use. See metadata for more information.

Global identifier:

Doi(
    "10.1594/PANGAEA.989737",
)

Types:
DataMeasurements(
    DataMeasurements {
        domain: Unspecified,
        station: None,
        measured_variables: [
            "Conductivity",
            "DATE/TIME",
            "Dew/frost point",
            "Dew/frost point maximum",
            "Dew/frost point, minimum",
            "Event label",
            "Humidity, relative",
            "Humidity, relative, maximum",
            "Humidity, relative, minimum",
            "LATITUDE",
            "LONGITUDE",
            "Long-wave downward radiation",
            "Long-wave upward radiation",
            "Precipitation",
            "Pressure, atmospheric",
            "Pressure, atmospheric, maximum",
            "Pressure, atmospheric, minimum",
            "Pressure, water",
            "Quality flag",
            "Salinity",
            "Salinity, absolute",
            "Short-wave downward (GLOBAL) radiation",
            "Short-wave downward (GLOBAL) radiation, maximum",
            "Short-wave downward (GLOBAL) radiation, minimum",
            "Short-wave upward (REFLEX) radiation",
            "Temperature, air",
            "Temperature, air, maximum",
            "Temperature, air, minimum",
            "Temperature, technical",
            "Temperature, water",
            "Ultraviolet-a global",
            "Wind direction",
            "Wind direction, maximum",
            "Wind direction, minimum",
            "Wind direction, true",
            "Wind speed",
            "Wind speed at 10 m height",
            "Wind speed at 2 m height",
            "Wind speed, maximum",
            "Wind speed, minimum",
            "pH",
        ],
        methods: [
            "CTD, Idronaut, Ocean Seven 310",
            "Hygro-Thermo-Transmitter-compact, RS485, Thies Clima",
            "Optical Laser-based distrometer, Thies Clima, 5.4110.xx.x00",
            "Pyranometer, Hukseflux, SR20-D2",
            "Pyranometer, Kipp & Zonen, SMP6",
            "Pyrgeometer, Hukseflux, IR20",
            "T.D, RBR, RBRduet³",
            "Temperature Sensor, RBR Solo³",
            "UV-A sensor, Apogee Instruments, SU-200-SS Series",
            "Weather station, Campbell Scientific, METSENS550",
            "Weather station, Thies Clima, Climate Sensor US (CUS)",
        ],
    },
)

Tags: Meerestemperatur ? Globalstrahlung ? Sensor ? Solarstrahlung ? Wassertemperatur ? Windgeschwindigkeit ? Geografische Koordinaten ? Lufttemperatur ? Temperatur ? U-Bahn ? Strahlung ? Fernüberwachung ? Salzgehalt ? Wasserprobe ? Wasser ? Metadaten ? Deutsche Bucht ? Forschungsschiff ? Daten ? Niederschlag ? Nordsee ?

Region: North Sea

Bounding boxes: 7.738166666666666° .. 8.144833333333333° x 54.09108333333333° .. 54.25466666666667°

License: Creative Commons Namensnennung 4.0

Data access requires registration: click here for further information

Language: Englisch/English

Organisations

Persons

Issued: 2026-02-03

Modified: 2026-02-03

Time ranges: 2024-07-10 - 2024-07-31

Resources

Status

Quality score

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