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Arctic cloud and aerosol measurements from Zeppelin Observatory, Svalbard, November 2015 to February 2018

The dataset includes cloud, aerosol and meteorological data from Zeppelin Observatory, Svalbard, for the period 27 November 2015 to 4 February 2018. This...

Chemical and physical properties of cloud residuals measured during the Ny-Ålesund Aerosol Cloud Experiment 2019 – 2020

Molecular-level information about the chemical composition of cloud residuals, measured with a filter inlet for gases and aerosols coupled to an iodide high...

Chemical composition of semi-volatile aerosol collected during the Arctic Ocean 2018 expedition

This data set contains molecular-level chemical composition of the semi-volatile fraction (evaporating at ≤ 200 °C) of aerosol particles collected onto...

Cloud water samples obtained in summertime during the Arctic Ocean 2018 expedition

This dataset contains results from analyses of chemical composition for elevated clouds in the pristine high Arctic, obtained with a miniaturised cloud water...

Concentration of bioaerosols and ice nucleating particles at Zeppelin Observatory, Svalbard, 2017 – 2020

Using a single-particle online optical instrument we measured the coarse particle concentration (optical diameter bigger than 0.8 µm) at the Zeppelin...

Concentration of particles larger than 2.5 nm collected during the Arctic Ocean 2018 expedition

The concentration of particles larger than 2.5 nm was measured with an ultrafine condensation particle counter (UCPC). The concentration was corrected for...

Data from a modelling study on the importance of Aitken mode particles for cloud sustenance in the high Arctic

This dataset presents the model output from two large-eddy simulation models. The model simulations were performed with the aim to investigate the importance...

Equivalent black carbon concentration measured with an aethalometer AE33 during the Arctic Ocean 2018 expedition

Equivalent black carbon (eBC) mass concentration was measured with a commercial aethalometer (model AE33, Magee Scientific, Berkeley, USA). Measurements were...

Frequent new particle formation over the high Arctic pack ice by enhanced iodine emissions, ancillary data

This dataset contains a collection of ancillary data that were used for the publication Frequent new particle formation over the high Arctic pack ice by...

Ice-nucleating particle concentrations sampled from behind the whole air inlet and from a balloon borne sampler

We collected filter samples of aerosol from the whole air inlet and size segregated aerosol samples from a balloon borne sampler (SHARK), which were then...

Ice-nucleating particle measurements collected during the Arctic Ocean 2018 marine aerosol reference tank experiments

Size segregated samples were collected from the marine aerosol reference tank (MART) headspace using a cascade impactor for offline analysis of their...

Size distribution of aerosol particles between 2.5 and 920 nm measured during the Arctic Ocean 2018 expedition

The aerosol size distribution was obtained combining measurements from a neutral and air ion spectrometer (NAIS) with a differential mobility particle sizer...

Size distribution of interstitial and total particles between 18 and 660 nm collected during the Arctic Ocean 2018 expedition

The aerosol size distribution was measured with a custom made scanning mobility particle sizer (SMPS), range 18⁠ – ⁠660 nm. Aerosols are important...

Size distribution of neutral and charged particles smaller than 42 nm collected during the Arctic Ocean 2018 expedition

The size distribution of neutral and charged particles was measured using a neutral cluster and air ion spectrometer (NAIS) instrument. The concentration was...

Ultrafine aerosol composition measured in summertime during the Arctic Ocean 2018 expedition

These results are chemical composition of Aitken mode (~20-70 nm) particles collected near the North Pole during August – ⁠September 2018, using in...

Atmosphere-ocean carbon dioxide fluxes and gas transfer velocities during SWERUS-C3 Arctic expedition

Eddy covariance observations of atmosphere-ocean fluxes of CO₂; dissolved CO₂ in surface waters, and derived gas transfer velocities during the SWERUS-C3...

Atmospheric methane and carbon dioxide and surface water methane from the SWERUS-C3 Arctic Ocean expedition in 2014, leg 1

Atmospheric observations of CH₄ and CO₂ above the Eastern Arctic Ocean, and dissolved CH₄ in surface waters of the Eastern Arctic Ocean in July and...

Atmospheric methane and carbon dioxide from the SWERUS-C3 Arctic Ocean expedition in 2014, leg 2

Shipborne atmospheric measurements of methane (CH₄) and carbon dioxide (CO₂) from the Eastern Arctic Ocean in August and September 2014. This dataset...

Ceilometer backscatter, cloud base height and cloud fraction data from the Arctic Ocean 2016 expedition

Measurements of cloud base height, cloud fraction and backscatter profiles. The dataset provides rare high quality meteorological observations from sea-ice...

Ceilometer backscatter, cloud base height and cloud fraction data from the Arctic Ocean 2018 expedition

Measurements of cloud base height, cloud fraction and backscatter profiles. The dataset provides rare high quality meteorological observations from sea-ice...

Data from a modelling study of a two-layer boundary-layer cloud system from the Arctic Ocean 2018 expedition

This dataset presents the model output from the large-eddy simulation (LES) model. The LES was employed to simulate a two-layer boundary-layer cloud structure...

Micrometeorological data from an ice-floe site during the high-Arctic ASCOS expedition 2008

Micrometeorological observations were collected from two masts on an ice floe a few hundred meters from the Icebreaker Oden during ice drift of the ASCOS...

Atmosphere-ocean coupled single-column model (AOSCM) simulations for a point in the Arctic Ocean, 1⁠ – 3 August 2014

This dataset consists of input data (atmospheric initial conditions and forcing, ocean initial conditions, sea ice initial conditions, namelist files and model...

Navigation, meteorological and surface seawater data from the Arctic Ocean 2016 expedition

Measurements from icebreaker Oden’s navigation, meteorological and surface seawater systems from the Arctic Ocean 2016 (AO2016) expedition to the central...

Navigation, meteorological and surface seawater data from the Arctic Ocean 2018 expedition

Measurements from icebreaker Oden’s navigation, meteorological and surface seawater systems from the Arctic Ocean 2018 (AO2018, also referred to as...

Navigation, meteorological and surface seawater data from the SWERUS-C3 Arctic Ocean expedition in 2014

Measurements from icebreaker Oden’s navigation, meteorological and surface seawater systems from the SWERUS-C3 expedition to the Eastern Arctic Ocean in July...

Present weather sensor visibility and precipitation data from the Arctic Ocean 2016 expedition

Measurements of visibility, precipitation type and intensity, and the corresponding World Meteorological Organization (WMO) weather codes. The dataset...

Present weather sensor visibility and precipitation data from the Arctic Ocean 2018 expedition

Measurements of visibility, precipitation type and intensity, and the corresponding the World Meteorological Organization (WMO) weather codes. The dataset...

Weather data from MISU weather station during Ryder 2019 and Northwest passage 2019 expeditions

Measurements of near-surface wind speed and direction, temperature, relative humidity, air pressure, shortwave and longwave downwelling radiation, surface...

Weather data from MISU weather station during the Arctic Ocean 2018 expedition

Measurements of near-surface wind speed and direction, temperature, relative humidity, air pressure, shortwave and longwave downwelling radiation, and surface...

Weather data from the MISU weather station during the Arctic Ocean 2016 expedition

Measurements of near-surface wind speed and direction, temperature, relative humidity, air pressure, shortwave and longwave downwelling radiation, and surface...

Weather data from the MISU weather station during the SWERUS-C3 Arctic Ocean expedition in 2014

Measurements of near-surface wind speed and direction, temperature, relative humidity, air pressure, shortwave and longwave downwelling radiation, and surface...

Methane concentrations from surface water on the Stordalen Mire, Abisko, Northern Sweden

This dataset provides surface concentration measurements of dissolved methane (CH₄), a strong climate forcing trace gas, in the surface water of three lakes...

Bathymetry of Lake Tarfala, northern Sweden

The bathymetry of Lake Tarfala, located in a pro-glacial high alpine environment in the Kebnekaise mountains, northern Sweden, was mapped in September 2016....

Organic geochemical data including leaf wax hydrogen isotopes from Sokli, Northern Finland

The dataset contains bulk geochemical data (TOC, TN, bulk δ¹³C and δ¹⁵N), leaf wax concentrations and their hydrogen isotope composition, from the...

High-resolution bathymetry from expedition Petermann, Northwest Greenland, 2015

Multibeam bathymetry from seafloor off northwestern sector of the Greenland Ice Sheet, where Petermann Glacier drains into Nares Strait. The data reveal...

Data from a modelling study on Arctic closure as a trigger for Atlantic overturning at the Eocene-Oligocene transition

This dataset was created for a study that investigates the effect of closing the Arctic-Atlantic gateway in a coupled climate model of the Eocene-Oligocene...

Data from a modelling study on the impact of Southern Ocean topographic features on the ocean and atmosphere

This dataset accompanies a study that investigates the impact of large topographic ridges in the Southern Ocean on the ocean circulation, the sea surface...

Data from expedition Petermann, off North Greenland, 2015

The Petermann 2015 expedition was carried out during summer 2015 in the Nares Strait off Northwestern Greenland. The main target was the Petermann Fjord where...

General metadata from expedition SAS, Arctic Ocean, 2021

The Synoptic Arctic Survey (SAS) 2021 expedition was carried out during summer 2021 in the Arctic Ocean, covering a large area including parts of the Amundsen...

Subaerial and submarine frontal morphology of Kronebreen, Svalbard, 24 August 2016

The dataset consists of two profiles of the frontal morphology of Kronebreen, Svalbard, measured on 24 August 2016. The data was recorded using LiDAR (above...

Acoustic and in-situ observations of double-diffusive finestructure in the Arctic Ocean, August to September 2016

This dataset contains acoustic midwater data from the central Arctic Ocean, collected with a wideband Simrad EK80 sonar (18 kHz center frequency) in 2016, and...

Nitrous oxide data collected in the Siberian Arctic Ocean in summer 2014 and autumn 2020

This dataset includes observational data related to nitrous oxide (N₂O) in the Kara, Laptev and East Siberian Sea, generated during the ISSS-2020 expedition...

Data from a modelling study to investigate North Atlantic sea surface temperature at the Eocene-Oligocene Transition

This dataset accompanies a study that investigates the evolution of North Atlantic sea surface temperature (SST) across the Eocene-Oligocene Transition (EOT)...

Foraminiferal data, XRF counts and age model options of sediment core AO16-8GC from the Alpha Ridge, Arctic Ocean

The dataset contains foraminiferal data (relative abundance of species), X-ray fluorescence (XRF) counts (Mn, Zr , and Mn/Zr ratio), and two age model options...

Glacier-proximal water temperatures in Kongsfjorden and Tempelfjorden, Svalbard, 2016-2017

Subsurface ocean temperatures have been harvested in Kongsfjorden and Tempelfjorden, Svalbard, in close proximity to the calving ice fronts of the glaciers...