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Atmosphere

Aerosols

Absorption coefficient for urban background air, Stockholm, December 2018

The dataset includes three parallel absorption coefficient measurements by two different types of instruments: one Multi-Angle Absorption Photometer (MAAP) and...

Aerosol and droplet size distributions and concentrations measured during the Arctic Ocean 2018 expedition

Aerosol and droplet size distributions and concentrations were measured by a Forward Scattering Spectrometer Probe (model FSSP-100). The FSSP was installed on...

Aerosol light scattering coefficients and scattering enhancement factors at 26 globally distributed stations 1998⁠ – ⁠2017

This dataset presents the time series of aerosol (total and back) light scattering, and scattering enhancement factors measured with in situ tandem humidified...

Aerosol light scattering properties at Zeppelin Observatory, Svalbard, 1999⁠ – ⁠2016, with back trajectory analysis parameters

The dataset was created to aid the investigation of long-term trends in aerosol light scattering properties using a unique data record of key aerosol optical...

Aerosol optical properties from ten earth system models for the year 2010

This dataset presents the time series of modeled aerosol optical properties (light absorption and extinction) from ten earth system models. The dataset...

Aerosol particle number size distribution data collected during the Arctic Ocean 2018 expedition

Aerosol particle number size distributions in the size range 10⁠ – 921 nm were measured with a custom built differential mobility particle sizer (DMPS)...

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...

Black carbon concentrations and carbon isotope signatures for Delhi, 2011

The dataset includes concentrations, stable carbon isotope signatures (δ¹³C) and radiocarbon signatures of elemental carbon (EC — thermal-optical tracer...

Black carbon concentrations and carbon isotope signatures for three sites in China, January 2013

The dataset includes concentrations, stable carbon isotope signatures (δ¹³C) and radiocarbon signatures of elemental carbon (EC - thermal-optical tracer of...

Black carbon isotope signatures from Himalaya and Tibet

Carbon isotope signatures of Elemental Carbon (EC) from aerosols and snow pits collected in Himalaya and Tibet during 2013/2014.

Chemical composition of aerosol particles at Mt. Åreskutan, Sweden

The chemical composition of atmospheric particulate matter at Mt. Åreskutan, a mountaintop site in central Sweden, was analysed with a focus on its...

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 and carbon isotope data of elemental carbon aerosols, Abisko, Sweden, September 2011 to March 2013

Data of high-volume PM2.5 and TSP aerosol samples, measured in Abisko, northern Sweden. The data cover 18 months of consecutive sampling. Sampling duration is...

Concentration and carbon isotope data of elemental carbon aerosols, Svalbard, Jan–Mar 2009

Data of high-volume PM10 aerosol samples, during high pollution events, measured at the Zeppelin Observatory, Ny-Ålesund, Svalbard. Further, radiocarbon and...

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...

Dual carbon isotope (Δ¹⁴C and δ¹³C) data for Hisar and Manora Peak, northern India

Blank corrected radiocarbon and stable carbon isotope data for the TSP aerosols collected during a winter (Dec, 2004) land campaign at Hisar and Manora Peak,...

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...

Light absorbtion properties of Brown Carbon in the South Asian outflow in winter 2016

This dataset provides the mass-absorption cross section at 365 nm and the corresponding absorption Ångström exponent, stable carbon isotope signature of...

Mask to identify polluted periods during the Arctic Ocean 2018 expedition

Aerosol and trace gas measurements are strongly affected by the ship exhaust and other human activities (e.g., helicopter flights). Therefore, it is important...

Observation (carbon isotopes) and model data for Arctic black carbon, Tiksi, Russia, April 2012 to March 2014

Data of high-volume total suspended particles (TSP) aerosol samples, measured in Tiksi, Northeast Siberia, Russia. The data cover ~24 months of consecutive...

Physical and chemical properties of aerosol particles and cloud residuals on Mt. Åreskutan in Central Sweden during summer 2014

The size distribution, volatility and hygroscopicity of ambient aerosols and cloud residuals were measured with a differential mobility particle sizer (DMPS)...

Profiles of aerosol optical properties measured during CAESAR 2014 at Åre, Sweden

This dataset provides profile measurements of aerosol optical properties (aerosol backscatter and extinction coefficient) using Raman lidar technique. The...

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...

Size-resolved absorption coefficient of ambient aerosol at Stockholm University, January to February 2019

The data describe the absorption coefficient of ambient aerosol at Stockholm University over a size range. Therefore a Multi-Angle Absorption Photometer (MAAP)...

Submicron aerosol methanesulfonate, iodide, iodate and sulfate data from the Arctic Ocean 2018 expedition

This dataset contains concentrations (micrograms per meter cubed of air) of anions detected in submicron aerosols collected onboard icebreaker Oden during the...

Temperature and energy transport for idealized NorESM slab-ocean simulations for modified mid-latitude SO₂ aerosol emissions

This dataset contains temperature and horizontal heat convergence output from four different climate modelling simulations using a slab-ocean setup for the...

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...

Ultrafine particle concentration measured during the Arctic Ocean 2018 expedition

The ultrafine particle (UFP) concentration is the concentration of particles having a diameter between 2.5 and 15 nm, it is reported in terms of particle...

Clouds

All-Sky cloud imager data from the high-Arctic ASCOS expedition 2008

An all-sky cloud imager consists of a polished half-spherical dome mirror with a camera on top looking down. The camera takes images of the dome, which...

Ceilometer backscatter and cloud base height measurements from the high-Arctic ASCOS expedition 2008

The height to the lowest cloud base, or to more than one cloud base in the case when the lowest cloud layer does not cover the whole sky, was measured by three...

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...

Ceilometer measurements, FMI, from the high-Arctic ASCOS expedition 2008

The height to the lowest cloud base, or to more than one cloud base in the case when the lowest cloud layer does not cover the whole sky, was measured by three...

Cloudnet remote sensing retrievals of cloud properties during the Arctic Ocean 2018 expedition

This dataset consists of a range of output products from the Cloudnet algorithm. Cloudnet combines cloud radar, ceilometer, microwave radiometer, and...

Cloudnet remote sensing retrievals of cloud properties from the SWERUS-C3 Arctic Ocean expedition in 2014

This dataset consists of a range of output products from the Cloudnet algorithm. Cloudnet combines cloud radar, ceilometer, microwave radiometer, and...

Dual-channel microwave radiometer measurements from the high-Arctic ASCOS expedition 2008

Vertically integrated water vapor (PWV) and cloud liquid water (LWP) was measured using a microwave radiometer, simultaneously observing the microwave...

Meteorological observations during the SWERUS-C3 Arctic Ocean expedition 2014 and colocated regional climate model output

Observations of the atmospheric thermodynamic structure, wind profiles and surface energy budget components from the Eastern Arctic Ocean in July through early...

Millimeter cloud radar Doppler moments measurements from the high-Arctic ASCOS expedition 2008

Cloud information data was collected using a ship-based vertically pointing millimeter cloud radar (MMCR), which is a Doppler radar at the Ka-band,...

Multi-sensor cloud microphysics product from the high-Arctic ASCOS expedition 2008

This data set includes retrievals of cloud type, characteristic particle size, and condensed water content for both liquid and ice hydrometeors. These...

Oden ceilometer cloud data from the high-Arctic ASCOS expedition 2008

The height to the lowest cloud base, or to more than one cloud base in the case when the lowest cloud layer does not cover the whole sky, was measured by three...

S-band radar data from the high-Arctic ASCOS expedition 2008

Cloud and precipitation information data was collected using a ship-based vertically pointing Doppler radar at the S-band, adapted to primarily measure...

Observations

Micrometeorological data from an ice-floe adjacent to an open lead during the Arctic Ocean 2018 expedition

Air-sea fluxes of momentum, heat and CO₂, associated micrometeorological and mean meteorological and ocean surface variables. Fluxes are derived from fast...

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...

Ozone soundings from the high-Arctic ASCOS expedition 2008

Profiles of ozone concentration were measured by a Vaisala add-on ozone sonde, for a few of the radiosoundings launched from the helipad of the Icebreaker Oden.

Radioactivity soundings from the high-Arctic ASCOS expedition 2008

Profiles of radioactivity were measured by a Vaisala add-on radioactivity sonde for a few of the radiosoundings, measuring Geiger–Müller tube count rates...

Weather and navigation data from the high-Arctic ASCOS expedition 2008

The Icebreaker Oden's weather station was mostly located on the 7th deck about 27 m above sea level, on top of the bridge. Sensors were distributed over the...

Temperature

2,000-Year Northern Hemisphere Temperature Reconstruction

Northern Hemisphere temperature reconstruction for the past 2,000 years by combining low-resolution proxies with tree-ring data, using a wavelet transform...

High resolution temperature maps for a boreal forest area in central Sweden 2015–2016

Grids of monthly minimum and maximum temperatures are presented at 25 m resolution for a boreal forest area of ~16 000 km2 in central Sweden (including parts...

High resolution topoclimate maps over Sweden

High spatial resolution (50 m grain-size) gridded maps of 10 years period (2000-2010) of monthly means, min and max temperature, and a map of Growing Degree...

Late-glacial European summer temperature reconstruction

The dataset provides a compilation of quantitative European summer temperature reconstructions for the late-glacial periods of the Bølling-Allerød...

Marine-Atmospheric Emitted Radiance Interferometer from the high-Arctic ASCOS expedition 2008

During the ASCOS expedition the temperatures of the cloud-base, ambient air, and surface were very accurately measured using the Marine-Atmospheric Emitted...

Northern Hemisphere Extratropical 1000-Year Temperature Reconstruction

1000-year temperature reconstruction for the Northern Hemisphere extratropical region (30°N-90°N) by the LOC method. The new LOC method reconstructs the...

Northern Hemisphere Extratropical 2000-Year and 500-Year Temperature Reconstructions

We present two new multi-proxy reconstructions of the extra-tropical Northern Hemisphere (30–90°N) mean temperature: a two-millennia long reconstruction...

Northern Hemisphere Extra-Tropics 2,000-year Decadal Temperature Reconstruction

Multi-proxy temperature reconstruction for the extra-tropical Northern Hemisphere (90–30°N) during the last two millennia based on 30 palaeotemperature...

Radiometer data from the high-Arctic ASCOS expedition 2008

High resolution (in time and space) vertical profiles of temperature were obtained from a 60GHz scanning microwave radiometer. The radiometer measures the...

Simulated seasonal temperatures 850–2005 for the seven PAGES 2k regions derived from the CESM last millennium ensemble

Simulated surface air temperature data derived from the Last Millennium Ensemble with the Community Earth System Model (CESM) version 1.1, for the period AD...

Stockholm Winter/Spring 500-Year Temperature Reconstruction

Historical documentary sources, reflecting different port activities in Stockholm, are used along with the instrumental temperature record to derive a...

Warming stripes — visualisations of annual temperature series from the Nordic countries

Ongoing climate change is a complex problem and communicating it to a general audience often requires short and simple explanations. Warming stripes refer to...

Weather observations

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...

Radiosonde data from the Arctic Ocean 2018 expedition

Atmospheric profile measurements of temperature, humidity, pressure and wind speed from radiosonde (Vaisala RS92) weather balloons. Data also include...

Radiosoundings from the high-Arctic ASCOS expedition 2008

Radiosoundings were launched every six hours (00, 06, 12 & 18UTC), and additionally before each helicopter flight (if not at one of the normal times), using...

Stockholm Historical Weather Observations

Weather observations have been made continuously at the old astronomical observatory in Stockholm since 1754. This is one of the world's longest records of...

Stockholm Historical Weather Observations — Air pressure

Data for air pressure at the old astronomical observatory in Stockholm since 1756 are provided. Over time, different barometers have been used and measurements...

Stockholm Historical Weather Observations — Air temperature

Data for air temperatures at the old astronomical observatory in Stockholm since 1756 are provided. The data are available both with, and without, adjustments...

Stockholm Historical Weather Observations — Barometer observations in original units since 1756

Weather observations have been made continuously at the old astronomical observatory in Stockholm since 1754. The dataset provided here contains individual...

Stockholm Historical Weather Observations — Daily mean air temperatures since 1756

Data for daily mean air temperatures at the old astronomical observatory in Stockholm since 1756 are provided. Three variants of the data are available: (i)...

Stockholm Historical Weather Observations — Daily mean air temperatures since 1756 (graphics)

Weather observations of several meteorological variables have been made continuously at the old astronomical observatory in Stockholm since 1756. As a part of...

Stockholm Historical Weather Observations — Maximum snow depth each winter since 1904/05

This dataset contains observed maximum snow depth in each winter from the winter season 1904/05 through 2018/19 at the old astronomical observatory in...

Stockholm Historical Weather Observations — Monthly mean air temperatures since 1756

Data for monthly mean air temperatures at the old astronomical observatory in Stockholm from 1756 until 2020 are provided. The dataset also contains annual...

Stockholm Historical Weather Observations — Observation times since 1756

This dataset provides information about the time points when weather observations were made each day (morning, noon, evening) during 1756⁠⁠ – 2018 at...

Stockholm Historical Weather Observations — Sub-daily cloud amount since 1756

Weather observations have been made continuously at the old astronomical observatory in Stockholm since 1754. The dataset provided here contains estimated...

Stockholm Historical Weather Observations — Sub-daily sea level pressure since 1756

Data for sub-daily sea level pressure (SLP) at the old astronomical observatory in Stockholm are provided for the period 1756⁠ – 2012. Three SLP...

Stockholm Historical Weather Observations — Thermometer observations since 1756

Weather observations have been made continuously at the old astronomical observatory in Stockholm since 1754. The dataset provided here contains individual air...

Tethered balloon measurements from the Arctic Ocean 2018 expedition

In-situ boundary-layer meteorological observations were made from the ice floe using sensors hanging under a tethered balloon which was quasi-continuously...

Tethersonde mean meteorology from the high-Arctic ASCOS expedition 2008

In-situ boundary-layer meteorological observations were made from the ice using sensors hanging under a tethered balloon which was quasi-continuously winched...

Visibility and present weather observations from the high-Arctic ASCOS expedition 2008

Visibility data was collected using a Vaisala visibility sensor based on forward scattered laser light deployed on the aft starboard side on the 7th deck of...

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...

Weather data from WeatherPak station from the high-Arctic ASCOS expedition 2008

The WeatherPak station is an integrated unit mounted approximately mid-ship on the forward railing on the Icebreaker Oden's 7th deck about 27 m above sea...

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AO2018 Atmospheric Science AAE ACAS ACSE AO16 AO18 AO2016 AO2018 APi-TOF ASCOS Absorption Absorption coefficient Aerosol Aerosol Science Aerosol chemical properties Aerosol chemistry Aerosol composition Aerosol optical properties Aerosol physical properties Aerosol size distribution Aerosol-Cloud-Interaction 2018 Aerosols Age model Air pollution Air pressure Air temperature Air-sea interaction Aitken mode particles Anthropogenic aerosol Arctic Arctic Arctic Ocean Arctic Ocean 2016 Arctic Ocean 2018 Arctic boundary layer Arctic clouds Atmosphere Atmospheric Brown Cloud Atmospheric Chemistry Atmospheric Physics Atmospheric Science Atmospheric chemistry Atmospheric gas phase data Automatic bubble counter Automatic floating chamber BC Back trajectory Backscatter Backscatter profile Barometer Beijing Bering Strait Biogenic aerosols Black carbon Brown Carbon Bubble CPC3776 Carbon Carbon cycling Carbon dioxide Carbon isotopes Carbonaceous aerosol Carbonaceous aerosols Chemical composition China Chironomids Chirp Chukchi Sea Climate Climate change Climate model Climate model simulation Climate proxy data Climate scenarios Climate sensitivity Cloud amount Cloud and fog biology and chemistry Cloud fraction Cloud fractions Cloud radar Cloud residual Cloud residuals Cloud-base height Cloud-base heights Cloudnet Clouds Clouds Aerosol Science Combustion Concentration Condensation sink DMPS Daily data Data visualisation De Long Trough Deglaciation Delhi Diffusion Droplets Drought Early instrumental data Earth system models East Siberia permafrost East Siberian Margin East Siberian Sea Ebullution Eddy covariance Elemental carbon Emissions Ensemble simulation Ensemble simulations Eocene Extinction Field measurements Figaro CH₄ sensor Fine aerosol Fjord Flux Fog Forest GCVI Gas transfer Graphics Greece Greenhouse Greenhouse gas Greenhouse gas flux Greenland Growing season degreee days Guangzhou Herald Canyon High Arctic High Artic Himalaya Hisar Historical Holocene Homogenized data Hydroclimate Hydrogen isotope composition Hygroscopicity Ice-nucleating particles Icebreaker Oden India Indo-Gangetic Plain Inorganic and organic composition Instrumental temperature data Internet of things IoT Iodic acid Ion induced nucleation Ions Isotopes Isotopologues Kara Sea Lacustrine Lake Laptev Sea Large-eddy simulations Last millennium Lidar Light absorption Light scattering Lomonosov Ridge Long-term trend Longwave radiation spectra MAAP MAC365 MOCCHA Manora Peak Marine Marine Heat Flow Marine geology Marine sediments Mass absorption Mass absorption cross-section​ Maximum temperature Mean temperature Meridional overturning circulation Meteorological model data Meteorology Methane Methane isotopes Methanesulfonic acid Microbiology-Ocean-Cloud Coupling in the High Arctic Microbiology-Ocean-Cloud-Coupling in the High Arctic Microclimate Micrometeorological data Micrometeorology Microsensor Minimum temperature Model-data comparison Monthly data Monthly maximum temperature Monthly minimum temperature Mt. Åreskutan NAIS Nanoparticles Neutral cluster and air ion spectrometer New particle formation NorESM North Pole Northern Greenland Northern Hemisphere Northern hemisphere Northwest Passage Ocean Ocean acidification Oceanography Oden Optical properties Oxygen isotope composition Ozone PM2.5 PSAP Paleoceanography Paleoclimate reconstruction Particle size distribution Peloponnese Plant macrofossils Pleistocene Pollution record Pond Position and speed Precipitation Precipitation intensity Precipitation type Profiles RCP Radiation Radiocarbon Radiosonde Radiosoundings Reconstruction Regional climate models Relative humidity Remote sensing Remote sensing of clouds and fogs Ryder 2019 expedition SMPS SWERUS-C3 SWERUS-C3 expedition Salinity Scanning mobility particle sizer Scattering coefficient Scattering enhancement factor Sea ice Seawater temperature Sedimentology Seismoacoustic Senseair CO₂ sensor Shanghai Ship log Ship log and weather station Ship navigation Snow Snow depth Soot Source apportionment South Asia Stable carbon isotope Stockholm Sub-bottom profiling Subarctic Sulfuric acid Summer temperature Surface energy budget Surface water Svalbard Sweden TDCIMS Temperature Tethered sonde profiles Tibet Topoclimate Trace gas Traffic Transport modeling Tropospheric chemistry Turbulence Turbulent fluxes UCPC Ultrafine aerosol Ultrafine condensation particle counter Ultrafine particles Ultraviolet radiation Urban background Vertical profiles Visibility Visualization Volatility Water isotope composition Weather Weather forecast Weather observations Weather station Weather stations Wildfire Wind profilers Younger Dryas Zeppelin iButton Ångström exponent