ASTAR campaigns are part of CLIMPSLIP+IPEV (CLimate IMpacts of Short-Lived pollutants In the Polar region Institut Polaire français Paul Emile Victor) project, carried out during the Arctic spring over the Svalbard archipelago. During those campaigns aerosol and cloud properties in the polar troposphere were measured using a research aircraft. The measurements in 2007 are also devoted to the validation of satellite sensors, in particular of the CloudSat/Calipso radar/lidar system onboard the A-Train.

Keywords: ASTAR, CLIMSLIP, aerosols, clouds, aircraft, Svalbard, polar stratosphere
Temporal Coverage: From 2004-05-10 to 2007-04-17

Franco-American mission selected by the NASA to supply a unique data set of atmosphere vertical profiles measured by the satellite CALIPSO (Cloud Aerosol and Infrared Pathfinder Satellite Observations).

Keywords: CALIPSO, satellite, global, clouds, aerosols, CALIOP, atmosphere
Temporal Coverage: From 2006-06-13

In the project CLIMSLIP-NyA we examined how black carbon (BC) in the atmosphere and in the snow contribute to an enhanced absorption of solar radiation in the atmosphere and in the snow. The field experiments included observations of black carbon concentrations in the atmosphere in springtime and the determination of black carbon concentrations in the snow using a single particle soot photometer.

Keywords: CLIMSLIP, Svalbard, Black carbon, pollutants, atmosphere, snow
Temporal Coverage: From 2012-03-21 to 2012-04-04

This dataset contains observations of ocean variability from interannual to decadal scales measured during two missions: OVIDE mission and SURATLANT

Keywords: CORIOLIS, ships, continuous measurements, ocean surface, North Atlantic ocean
Temporal Coverage: From 1993-07-01

There are two main products derived from DARDAR project: (1) DARDAR-CLOUD: Ice cloud properties derived from CloudSat and CALIPSO (CALIOP). There are other variables describing the mycrophysics of clouds available in ICARE. (2) DARDAR-MASK: The main variable of this product is a features categorization mask. The combination of both satellites provides accurate particle size with height.

Keywords: DARDAR, CALIPSO, satellite, CloudSat, global, ice clouds, atmosphere
Temporal Coverage: From 2006-06-01

The AMSU-A dataset comprises vertical stratospheric profiles of brightness temperature, while the AMSU-B dataset consists of global data of precipitation and convection detection, both of them from 1998. The MHS (since 20 May 2005) provides humidity profiles and information on surface temperature and emissivity (in conjunction with AMSU-A channels) and detects cloud and precipitation contaminated pixels. The MHS instrument represents an improvement to the AMSU-B radiometer on board previous NOAA satellites, while providing continuity to its data. METOP-C (MHS) will be the next generation of European satellites (2016) and The Advanced Technology Microwave Sounder (ATMS) on board NASA's newest Earth-observing satellite, NPP, acquired its first measurements on November 8, 2011.

Keywords: AMSU, MHS, global, microwave radiometers, satellites, climatology data, atmosphere
Temporal Coverage: From 1998-11-24

The Global Ozone Monitoring by Occultation of Stars (GOMOS) Instrument on board Envisat is an ESA instrument that was dedicated to the study of the of Earth’s atmosphere using the stellar occultation technique, allowing for the retrieval of species such as O3, NO2, NO3, H2O, O2, air density, aerosol extinction and OClO.

Keywords: GOMOS, global, chemical composition, satellite, atmosphere
Temporal Coverage: From 2002-03-01 to 2014-04-08

GOSAT (Greenhouse gases Observing SATellite) was launched in a sun-synchronous orbit with an equator crossing time at 13:00 (descending node) by a JAXA H-IIA rocket in January 23, 2009 and is acquiring data on the global distribution of carbon dioxide (CO2) and methane (CH4) (column averaged mixing ratio) for at least five years.

Keywords: GOSAT, satellite, greenhouse gases, global, atmosphere
Temporal Coverage: From 2009-01-23

GRIP is a multinational European research project, organized through the European Science Foundation. Funding came from 8 nations (Belgium, Denmark, France, Germany, Iceland, Italy, Switzerland, and United Kingdom), and from the EU.

Keywords: Ice cores, GRIP, Greenland summit, water stable isotopes, Holocene, Eemian, last interglacial

NGRIP is a multinational research program, funded by participating institutions in Germany, Japan, Sweden, Switzerland, France, Belgium, Iceland and the US. Primary sponsor is the Danish Research Council.

Keywords: Ice cores, NGRIP, Greenland, water stable isotopes, Holocene, Eemian, last interglacial

IAOOS-France is coordinated by UPMC (L'OCEAN/LATMOS) and its objective is to install multi-disciplinary autonomous systems on a network of buoys in central Arctic, collecting in real time observations of the ocean, sea ice, snow and atmosphere in the Arctic.

Keywords: Buoy network, Arctic Ocean, sea ice, atmosphere, micro-lidar, real time, IAOOS
Temporal Coverage: From 2012-04-15 to 2017-12-31

The Infrared Atmospheric Sounding Interferometer is flying onboard MetOp-A (since 2006) and MetOp-B (2012). It is a CNES/Eumetsat instrument using a nadir view to sound the atmospheric state and composition, using the thermal infrared spectral range. More information about the IASI instrument and the MetOp satellites can be found on the dedicated sites of CNES and Eumetsat.

Keywords: Satellite, atmosphere, chemical composition, IASI, CO, ozone
Temporal Coverage: From 2007-10-01

This data base comprises datasets from different research stations and projects, all including water vapour isotopes measurements and precipitation

Keywords: NEEM, water isotopic composition, Greenland, atmospheric surface, Ivittuut, Greenland, Western Siberia
Temporal Coverage: From 2010-05-01

This dataset is part of ICOS-ATC, the research station is located in south west Greenland and provides both continuous atmospheric observations and discontinuous flask measurements

Keywords: Greenland, atmosphere, weather stations, ground observations, flasks, Ivittuut
Temporal Coverage: From 2007-09-01

Hourly/daily land surface temperature over circumpolar arctic were produced from the SSM/I  and SSMIS microwave radiometers , during snow-free periods and over 1996-2012. MODIS data were used to calibrate the retrieval algorithm. The spatial resolution is 25 km and the product is available over the circumpolar northern hemisphere, for latitudes larger than 45°N.

Keywords: Land surface temperature maps, satellite, northern hemisphere
Temporal Coverage: From 1996-01-01 to 2012-12-31

As part of MACC and CityZen EU projects, the ACCMIP and the RCP 8.5 emissions datasets have been extended on a yearly basis for the period 1960-2020 for the anthropogenic emissions, and 1960-2008 for the biomass burning emissions.

Keywords: Global anthropogenic emissions, reanalysis, MACCity

One SAOZ-BAL data set is available from Ether for the period 1993/06/24 to 2006/08/19 in V1 version for O3 and NO2; They were provided by Florence Goutail (LATMOS/CNRS). The data are level 2 vertical profiles. SAOZ-BAL data in the Arctic have been obtained during various campaigns (EASOE, SESAME, THESEO, SOLVE, BALODIN, ENVISAT).

Keywords: NDACC, SAOZ balloons, atmosphere, chemical composition, network stations
Temporal Coverage: From 1993-06-24 to 2006-08-19

The NDACC (Network for Detection of Atmospheric Composition Change), formerly NDSC (Network for Detection of Stratospheric Change), is an international network for long-term monitoring of the stratosphere and the high troposphere established in 1991. Objectives include the detection of natural or anthropogenic changes in the atmospheric chemical composition and temperature, studies of interactions between atmospheric chemistry and climate, and long-term validation of similar measurements from available satellites. French activities are grouped in the Service d’Observation NDACC-France of CNRS (Centre National de la Recherche Scientifique)/INSU (Institut National des Sciences de l’Univers) coordinated nationally by OVSQ (Observatoire de l’université de Versailles). They are funded by several entities including CNRS/INSU, as well as CNES (Centre National des Etudes Spatiales), IPEV (Institut Paul-Emile Victor), the region of La Reunion, and several partner universities.

Keywords: NDACC, SAOZ, ground measurements, long-term, atmosphere, chemical composition, stations network
Temporal Coverage: From 1988-02-01

The North Greenland Eemian Ice Drilling - NEEM - is an international ice core research project aimed at retrieving an ice core from North-West Greenland reaching back through the previous interglacial, the Eemian. The project logistics is managed by the Centre for Ice and Climate, Denmark, and the air support is carried out by US ski equipped Hercules managed through the US Office of Polar Programs, National Science Foundation. The ice core was drilled during 2008-2012.

Keywords: Ice cores, NEEN, Greenland, water stable isotopes, Holocene, Eemian, last interglacial

The “OPTIMISM” system consists of an ocean buoy to measure the physical properties of the sea and ice (currents, sea water temperature and salinity, sea ice thickness and temperature) and a meteorological mast upon it. The meteorological mast is the BEAR station concept (Budget of Energy for Arctic Region). The data provided by the instrument, together with modeling works, will be used to analyse the sea ice thickness evolution in relation with the heat exchanged with surrounding fluids. The data will also document various processes such as mixing in the ocean underneath the ice or wave-ice interactions. Instruments will be deployed in an Arctic coastal polynya, a region where dense water forms and flows at the bottom of the ocean, playing an important role in climate. The instrument will also be deployed in the multiyear ice pack to contribute to the international network of observation of the Arctic and provide ground truth measurements for the validation of satellite observations. The obtained data will also be relevant for the validation of the ESA (European Space Agency)’s Earth Explorer Cryosat-2 mission.

Keywords: OPTIMISM, buoys, real-time, arctic ocean, sea-ice, fluxes, sea-surface interactions, atmosphere
Temporal Coverage: From 2010-04-25

Permafrost investigations in Central Yakutia (Siberia) carried out at GEOPS laboratory (Laboratoire de Geographie Physique, Orsay University, France) in cooperation with the Permafrost Institute (Yakutsk, Russia)

Keywords: Permafrost, Siberia, Lena river, ground-observations
Temporal Coverage: From 2008-05-01

PFTs maps for the ORCHIDEE land surface model at 1 km scale have been produced over Siberia. They are based on the land cover product GlobCover 2005 and an updated cross-walking approach to link land cover classes to the ORCHIDEE 16 PFT classes

Keywords: Plant functional type, maps, Siberia, satellite, land

POLARCAT aimed to quantify the impact of trace gases, aerosols and heavy metals transported to the Arctic and their contribution to pollutant deposition and climate change in the region.

Keywords: Aircraft, field campaign, aerosols, Kiruna, Sweden, lidar, POLARCAT, atmosphere
Temporal Coverage: From 2008-03-30 to 2008-04-11

POLARCAT is an International Polar Year project, which mostly organised aircraft- and ship-based campaigns into the Arctic during spring (Arctic Sweden) and summer (Greenland) 2008.

Keywords: Aircraft, field campaign, aerosols, Greenland, CO, O3, lidar, POLARCAT, atmosphere
Temporal Coverage: From 2008-06-30 to 2008-07-14

During the Polarstern expeditions in the Arctic Ocean two types of measurements were carried out: the first one is done while the vessel is moving; producing horizontal variability of the parameters measured (up to 6 m deep); the second one is carried out by deploying CTD and producing vertical profiles from 0 to 100 m

Keywords: Sea surface, R/V polarstern, ships, arctic ocean, chemical composition
Temporal Coverage: From 2010-06-10 to 2010-07-29

The RACEPAC-LaMP (Le Laboratoire de Météorologie Physique) project investigates the spatial distribution of ice and liquid water in mixed phase boundary layer clouds and its impact on remote sensing. The experimental design of the RACEPAC (Radiation-Aerosol-Cloud ExPeriment in the Arctic Circle) field campaign planned in collaboration with the AWI ( lfred-Wegener-Institut) and other German research groups (LIM, KIT, MPIC,FZJ) for spring 2014 (April-May) will be a major improvement over prior campaigns (ASTAR, POLARCAT, SORPIC, VERDI…). Both AWI polar research aircrafts (Polar-5 and Polar-6) flying at the same speed will be involved.

Keywords: RACEPAC, CLIMSLIP, aerosols, clouds, Canada, aircraft
Temporal Coverage: From 2014-04-24 to 2014-05-23

RALI project consists of an airborne platform combining a 95 GHz Doppler cloud radar named RASTA and a triple-wavelength dual-polarization lidar (High spectral resolution capability) named LNG for the characterisation of the macrophysical, microphysical, radiative, and dynamical properties of clouds, aerosols, and convection.

Keywords: Aircraft, radar, lidar, clouds, ice clouds, RALI, atmosphere
Temporal Coverage: From 2008-03-30 to 2008-04-11

The RMR-Lidar has been installed on the island of Andøya as part of the ALOMAR. It has been a cooperation of the Leibniz-Institute of Atmospheric Physics, the University of Bonn, the Service d'aéronomi of the Centre National de la Recherche Scientifique in Verrières-le-Buisson (France) and the University College London (Great Britain).

Keywords: Lidar, atmosphere, Alomar research station, aerosols, clouds

Numerous sea surface salinity drifters have been deployed in the Arctic/subarctic region. Since 2008 there are discontinuous data available through the SMOS project of SSS and SST, among other variables.

Keywords: Drifters, ovide mission, arctic/subartic, sea surface salinity, ocean
Temporal Coverage: From 2008-06-18

SoRPIC (short for Solar Radiation and Phase Discrimination of Arctic Clouds) is an international scientific project to investigate the spatial distribution of ice and liquid water in Arctic boundary-layer clouds, and its effects on the solar energy budget (the so-called radiative effect) and on remote sensing of such clouds.

Keywords: SoRPIC, CLIMSLIP, Svalbard, aircraft, arctic clouds
Temporal Coverage: From 2010-04-30 to 2010-05-20

In 2013 the Tara Expedition conducted studies in the Arctic Ocean during 8 months. The data collected included continuous measurements of SST, SSS and pCO2, fCO2, which is being analysed in the laboratory at L'OCEAN.

Keywords: TARA, Arctic ocean, ships
Temporal Coverage: From 2013-05-19 to 2013-12-06

New aircraft high-precision measurements of the vertical distribution of CO2, CH4, CO, O3 and aerosol are performed in the Siberian troposphere on transects of more than 8000 km, and also new and existing datasets are analyzed. This projects builds upon the successful YAK-AEROSIB GDRE project (2003-2010).

Keywords: Aircraft, atmosphere, chemical composition, Siberia, field campaigns, YAK-AEROSIB, Arctic
Temporal Coverage: From 2006-04-11