POLARCAT - France

(POLar study using Aircraft, Remote sensing, surface measurements and models, of Climate chemistry, Aerosols and Transport)

The POLARCAT activity, involving scientists from 18 countries, is an international programme of measurements (aircraft, balloons, ground-based, satellite), data analysis and modelling which aims 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. POLARCAT, endorsed by IGAC, SPARC and iLEAPS, has 5 major scientific objectives:

• Quantification of the major transport pathways controlling distributions of oxidants, aerosols, heavy metals in the Arctic troposphere during winter-spring when Arctic Haze is prevalent and during summertime.
• Quantification of the optical properties and direct/indirect radiative effects of aerosols and their interactions with clouds and possible impacts on surface albedo and ice/snow cover.
• Contribution of summertime boreal forest fires on atmospheric composition in the Arctic compared to other source regions (e.g. Asia) including the impact of soot deposition on snow/ice albedo and pyro-convection on the composition/aerosol loading of the stratosphere.
• Determination of chemical processes controlling composition including quantification of sources and sinks of major oxidants such as ozone and nitrogen oxides.
• Study of processes controlling inter-annual variations in atmospheric composition over the Arctic such as transport patterns (e.g. NAO) and changing emissions and the impact of chemistry-aerosol-climate feedbacks

 

Summer Campaign (Kanger) : 30 June to 14 July 2008

 

Flight plans and data quicklooks : (no password needed)

Flight plans : data

Time plots of CO and O₃ in situ measurements : quicklooks

O₃ Lidar : quicklooks

LNG Lidar : quicklooks

Data access with password only :

Description of available data files

Available readme files :

Readme for navigation files

Readme for aerosol, microphysics and SMPS data files from LAMP (LAboratoire de Météorologie Physique)

Readme for AMS (Aeodyne rAerosol Mass Spectrometer) MPI (Max Planck Institut, Mainz) data files

Readme for O₃ Lidar data and colorplot files

Readme for MOZART files.

Flight 71	30 June	in situ data	O3 Lidar data
Flight 72	2 July	in situ data	O3 Lidar data
Flight 73	4 July	in situ data
Flight 74	5 July	in situ data	O3 Lidar data
Flight 75	7 July	in situ data	O3 Lidar data
Flight 76	8 July	in situ data	O3 Lidar data
Flight 77	10 July	in situ data	O3 Lidar data
Flight 78	12 July	in situ data	O3 Lidar data
Flight 79	12 July	in situ data
Flight 80	13 July	in situ data	O3 Lidar data
Flight 81	14 July	in situ data	O3 Lidar data
Flight 82	14 July	in situ data	O3 Lidar data

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Other data :

Meteorological
maps and cloud cover satellite images

Potential Vorticity fields (readme and data)

Spring Campaign (Kiruna) : 30 March to 11 April 2008

 

Flight plans and data quicklooks : (no password needed)

Time plots of aerosol in situ measurements : quicklooks

LNG Lidar : quicklooks

Data access with password only :

Description of available data files

Available readme files :

Readme for navigation files

Readme for aerosol, microphysics and SMPS data files from LAMP (LAboratoire de Météorologie Physique)

Readme for MOZART files.

Flight 24	30 March	in situ data
Flight 25	31 March	in situ data
Flight 26	1 April	in situ data
Flight 27	3 April	in situ data
Flight 28	6 April	in situ data
Flight 29	7 April	in situ data
Flight 30	7 April	in situ data
Flight 31	8 April	in situ data
Flight 32	8 April	in situ data
Flight 33	9 April	in situ data
Flight 34	10 April	in situ data
Flight 35	11 April	in situ data

 

 

 

 

 

Other data :

Meteorological maps

Potential Vorticity fields (readme and data)

Last Updated on Tuesday, 12 January 2010 13:02