Coronavirus: Important notice (Mars 17, 2020)
Due to current COVID-19 lockdown in France, ICARE Data and Services Center will be operated by teleworking only beginning March 16, 2020. Data services will keep running on a best effort basis. Some delays in resolving technical incidents and processing users requests may be expected.
Information regarding this situation will be posted on our covid-19-lockdown page. Thank you for your understanding.

ICARE Highlights



New insights into cloud microphysical processes from combined POLDER-MODIS Level-2 observations "PM-L2" – March 2020


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New insights into cloud microphysical processes were inferred from the combined POLDER-MODIS dataset developed by LOA and produced and distributed by AERIS/ICARE. Two recent studies investigated cloud microphysical processes that are critical to understand for a correct representation of cloud feedback in numerical weather and climate models. The results are detailed in two recent papers using the PM-L2 Version 3.00 data sets globally. (click here for details).



Release of CALIPSO LIDAR Level-3 GEWEX Cloud Standard Product
December 2019


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The Atmospheric Science Data Center (ASDC) at NASA Langley Research Center and the French AERIS/ICARE Data and Services Center in Lille, France, in collaboration with the CALIPSO mission team announce the release of a new CALIPSO lidar level-3 (L3) Global Energy and Water cycle Experiment (GEWEX) Cloud product. This new data product is a reformatted version of CALIPSO's contribution to the GEWEX cloud assessment of global cloud datasets from satellites (https://climserv.ipsl.polytechnique.fr/gewexca/index.html).

The data submitted by the CALIPSO team for this project had to conform to a very specific format; yearly netCDF files organized by parameter. In order to be compatible with other publicly orderable lidar L3 CALIPSO aerosol and cloud products, which are reported as monthly HDF files, this new lidar L3 CALIPSO GEWEX cloud product was created. These files report global distributions of cloud amount and cloud top as averages and histograms on a uniform 2-dimentional (2D) spatial grid. All level-3 parameters are derived from the CALIPSO version 4.x level-2 5 km cloud merged layer products, with a temporal averaging of one month.

CAL_LID_L3_GEWEX_Cloud-Standard-V1-00 DOI: 10.5067/CALIOP/CALIPSO/LID_L3_GEWEX_Cloud-Standard-V1-00

The monthly products are available beginning with data from June 2006 through December 2016.



Release of SODA V2-20 and V2-21 products
January 2020


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AERIS/ICARE is pleased to announce the release of the latest version of the CALIPSO/CloudSat SODA products, giving access to the aerosol and semi-transparent cloud optical depths from the analysis of surface and dense clouds returns. This product originates from the collaboration between IPSL/LATMOS, NASA LaRC, and AERIS/ICARE Data and Services Center. The whole CALIPSO/CLOUDSAT period has been reprocessed.
This version uses the latest version of the algorithm (v2.3.0) and the latest input data available at the moment (CALIOP level 1 V4-10 and level 2 V4-20, CLOUDSAT R05, MODIS C6, ASMR_E v7, AMSR2 v8). The difference between the V2-20 and V2-21 versions comes from the AMSR data used:

  • For V2-20: AMSR_E from 2006-06-15 to 2012-06-30
  • For V2-21: AMSR2 since 2012-07-01
Please note that for the 2011-11-04 to 2012_07_01 period, there is no AMSR data available.
A full documentation will be available soon.



CATS L1B V3-00 and L2O V3-01 data products available
July 2019


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NASA’s Cloud-Aerosol Transport System (CATS) is a lidar remote sensing instrument on the International Space Station (ISS). During its life span of 33 months, from 25 March 2015 through 29 October 2017, CATS provided measurements of cloud and aerosol profiles similar to CALIPSO.
CATS Level-1B Version 3-00 and Level-2O Version 3-01 data are now available both in the ICARE archive and at NASA/ASDC.



2nd APOLO Conference – 4-7 November 2019, Lille, France
Advancement of POLarimetric Observations: instruments, calibration, and improved aerosol and cloud retrievals


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The 2nd conference on "Advancement of POLarimetric Observations: instruments, calibration, and improved aerosol and cloud retrievals" (APOLO) will be held November 4-7, 2019, at the University of Lille, France. Various topics will be covered, including: advances in the theory of polarimetric remote sensing, optimization of strategies of polarimetric Earth observations, improvement of polarimetric observation quality and information content, among many others.
Registration to the conference is now open.



Workshop announcement:
International Satellite Cloud Climatology Project ­– Next Generation
EUMETSAT, 28-30 October 2019 (invitation only)


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The workshop will be held to discuss priorities for the future direction of the International Satellite Cloud Climatology Project ­– Next Generation (ISCCP-NG). The Earth observing capabilities from geostationary orbit have advanced substantially over recent years. With the launch of GOES-17 in 2018, the global geostationary constellation is now comprised of sensors with 10 or more channels, viewing the earth at sub-hourly time scales and with resolutions finer than 5 km. With the launch of Meteosat Third Generation (MTG) in 2021, the global geostationary constellation will have 10 common spectral channels. There is a clear need to exploit this new Earth observing capability. The primary goal of the workshop is to define the scientific scope and the technical contents and methods needed for ISCCP-NG.
The registration deadline is September 30, 2019.



Release of CALIOP V1-00 Level 1.5 product
April 2019


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The CALIPSO mission team, in collaboration with the Atmospheric Science Data Center (ASDC) at NASA Langley Research Center and AERIS/ICARE Data and Services Center, announces the release of a new CALIOP Level 1.5 Product:
CAL_LID_L15-Standard-V1-00
The CALIOP Level 1.5 data is a continuous segment of calibrated, geo-located, cloud-cleared, and spatially averaged profiles of lidar attenuated backscatter. These profiles are derived via a synthesis of the CALIOP V4.10 Level 1B profile and V4.20 Level 2 Vertical Feature Mask data products.
The product is available beginning with data from June 13, 2006 and as of this announcement, through December 31, 2018.



5e Journée Scientifique et Prospective du Labex CaPPA – 6 mars 2019
5th Science Day and Outlook of the Labex CaPPA – March 6, 2019


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La Journée Scientifique du Labex CaPPA est organisée tous les ans à destination des laboratoires du Labex. Elle est l'occasion de discuter et échanger au sujet des avancées scientifiques des différents groupes de travail. Bilan scientifique de l'année 2018, présentation de posters et ateliers sont prévus. Toute la communauté scientifique qui travaille pour le projet est invitée à cet évènement.
L'évènement se tiendra le mercredi 6 mars, de 9h15 à 17h dans les locaux de l'IMT Lille Douai (campus Cité Scientifique).



Order tool for geostationary data
October 2018


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A new order tool was developed by AERIS/ICARE Data and Services Center to retrieve geostationary data sets from the ICARE archive.
Click here to access the tool.
Users can combine various selection criteria (satellite(s), data set(s), geographic region, date range, time range, etc.) to place custom orders. Orders can mix different satellites and data sets. Reprojection on a standard geographic grid is offered as an option, along with geographic subsetting. The tool generates a download script based on the users selection, such that users can retrieve complex and/or massive orders offline automatically. The service is open to all registered users.
Users are invited to provide feedback and comments to contact@icare.univ-lille1.fr.



Release of CALIPSO V4.20 Lidar Level 2 products
October 2018


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The CALIPSO mission team, in collaboration with the Atmospheric Science Data Center (ASDC) at NASA Langley Research Center and AERIS/ICARE Data and Services Center, announces the release of an update to the standard Level 2 lidar data products:

  • CAL_LID_L2_01kmCLay-Standard-V4-20
  • CAL_LID_L2_333mMLay-Standard-V4-20
  • CAL_LID_L2_05kmMLay-Standard-V4-20
  • CAL_LID_L2_05kmALay-Standard-V4-20
  • CAL_LID_L2_05kmCLay-Standard-V4-20
  • CAL_LID_L2_05kmAPro-Standard-V4-20
  • CAL_LID_L2_05kmCPro-Standard-V4-20
  • CAL_LID_L2_VFM-Standard-V4-20
The V4.20 CALIOP Level 2 products contain new laser energy science data sets. These science data sets provide information for filtering out low laser energy shots, a phenomenon which has impacted CALIOP data quality in the South Atlantic Anomaly region since mid-2017. A technical advisory of this phenomenon, and the recommended courses of action for mitigating its impact on science analyses, was posted on the CALIPSO website in June of 2018. In that advisory, it was noted that the existing V4.10 CALIOP Level 2 dataset did not contain enough information to identify low laser energy shots without having to access the corresponding V4.10 CALIOP Level 1 files. In order to provide a simpler method to exclude affected level 2 data, the new V4.20 CALIOP Level 2 files now includes science data sets for both 532 nm single shot energy (directly from the Level 1 product) and the minimum 532 nm laser energy for each 80 km chunk. This avoids the necessity to download both the CALIOP Level 1 and Level 2 data products in order to exclude affected profiles. All other science data sets within the V4.20 Level 2 products are identical to those of the V4.10 Level 2 products.
The product is available beginning with data from January 1, 2017 and as of this announcement, through May 31, 2018. Remaining data will be available as it is produced, starting with most recent and working backwards through the mission.



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