July 12, 2017:
CALIPSO - IIR Level 1 Version 2.00 Data Available
The Atmospheric Science Data Center (ASDC) at NASA Langley Research Center
in collaboration with the CALIPSO mission announces the release of the following data product:
Version 2.00 of the IIR Level 1 product is the first major revision since
the initial release in 2006. The calibration procedure has bee adjusted to reduce known small
seasonal calibration biases in the Northern Hemisphere, which were caused by thermal drifts
synchronized with the elapsed time since the night-to-day transition.
The product is available from June 13, 2006 to current. The Version 1
standard and expedited products will continue to be generated and provided to the public.
There is no expedited version of the Version 2.00 IIR Level 1 planned for this release.
Inforamtion about this data product, including data availability,
user documentation and quality statements, relevant links, sample read software, and
tools for working with the data, etc. can be found at the following
November 29, 2017 - ATTENTION:
CALIOP continues to experience low energy shots within and near the South Atlantic
Anomaly (SAA) (latitude: 40S to 2.2N, longitude: 93W to 35E) since Spring of 2017. Low
energy shots are indicated by the “QC_Flag” SDS within the
Lidar Level 1 data product. The 5th bit of the QC_Flag should be queried to identify
affected profiles. The user should be cautioned using products from the Lidar Level 1
for those segments which pass over the SAA.
The CALIPSO expedited data products and images continue to be generated and
are posted for operational needs under the Products/Expedited Browse Images tab on this website.
The Cloud-Aerosol Lidar and Infrared Pathfinder Satellite Observation (CALIPSO) satellite provides new insight into the role that clouds and atmospheric aerosols (airborne particles) play in regulating Earth's weather, climate, and air quality.
CALIPSO combines an active lidar instrument with passive infrared and visible imagers to probe the vertical structure and properties of thin clouds and aerosols over the globe. CALIPSO was launched on April 28, 2006 with the cloud profiling radar system on the CloudSat satellite.
CALIPSO and CloudSat are highly complementary and together provide new, never-before-seen 3-D perspectives of how clouds and aerosols form, evolve, and affect weather and climate. CALIPSO and CloudSat fly in formation with three other satellites in the A-train constellation to enable an even greater understanding of our climate system from the broad array of sensors on these other spacecraft.
CALIPSO is a joint U.S. (NASA) and French (Centre National d'Etudes Spatiales/CNES) satellite mission that has been in operation for four years. » Read more …
» CALIPSO’s Data Availability Tool
» CALIPSO’s Search and Subsetting Web Application