ICARE

The ICARE Thematic Center was created in 2003 by CNES, CNRS, the Nord-Pas-De-Calais Regional Council, and the University of Lille, to provide various services to support the research community in fields related to atmospheric research, such as aerosols, clouds, radiation, water cycle, and their interactions. ICARE's initial emphasis is the production and distribution of remote sensing data derived from Earth observation missions from CNES, NASA, and EUMETSAT. One of ICARE's main components is the Data and Services Center, located at the University of Lille, which develops science algorithms and production codes, building on the expertise from various partner Science Computing Facilities, and distributes products to the users community.

HIGHLIGHTS


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


calipso_expedited/Logo_Calipso.jpg

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.




CALIPSO orbit change
September 2018


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On September 13, 2018 CALIPSO will begin lowering its orbit from 705 km to 688 km to resume formation flying with CloudSat. The sequence of maneuvers is expected to take about a week and the payload instruments will be turned off (Cloud-Aerosol Lidar with Orthogonal Polarization (CALIOP), Imaging Infrared Radiometer (IIR), and Wide Field Camera (WFC)). Normal science operations are anticipated to begin in late September with public data availability around October 10, 2018.




First announcement
2nd Workshop CGMS International Cloud Working Group
29 October-2 November 2018, Madison, Wisconsin, USA


workshop_2018_first_announcement/madison.jpg

The 2nd Workshop of the International Cloud Working Group (ICWG) will be held in Madison, Wisconsin, USA from 29 October to 2 November 2018. The workshop aims at enhancing cloud retrieval schemes and their applicability and a better characterization of their validity. Experts working with cloud parameter retrieval schemes from passive imagers, passive microwave, and lidar and radar observations are invited to participate in the workshop and to contribute to the workshop’s cloud parameter inter-comparison and validation activities. More information on registration and submitting abstracts will follow in the second announcement.

To see the first official announcement, click here.
For details on the selected golden days, and when and how to submit your data, click here.


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