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RECENT NEWS

02-JULY-2009:
In March 2009, the CALIPSO Team switched successfully from Laser 2 to Laser 1 as planned prior to launch. Since then, the performance of Laser 1 has been monitored, extensively analyzed and the results compared to Laser 2 performance.

A new version of the Lidar Level 1 data set is being released. The maturity level definition of this release has been set to "Validated Stage 1." This Version 3.00 release includes updated algorithms.

At this time, browse images between March 12, 2009 to June 10, 2009 are posted on this web site and the data are available from the Atmospheric Science Data Center.

28-APRIL-2009:
CALIPSO and CloudSat celebrate 3 years on-orbit

Three years ago on April 28, 2006, CALIPSO and CloudSat launched with the hope of collecting important scientific data that would contribute to a better understanding of air quality, weather and climate.

To date, CALIPSO has acquired more than 1.612 billion lidar profiles and the spacecraft/payload remain healthy with the prospect of 3 or more years of continue measurements to come.

CALIPSO and the other missions of the A-Train continue to do well and together they provide a rich, valuable data record that will help scientists answer significant questions about climatic processes and help improve ever-important climate prediction models.

20-MARCH-2009:
The CALIPSO Laser Switch has been completed and normal operations resumed on March 20, 2009. Release of standard data products from the backup laser are expected to resume in early May after a period to review the instrument's calibration.

INTRODUCTION

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 with an expected 3 year lifetime.

 » Read more …


NASA
Last Updated: August 24, 2009
Curator: Charles R. Trepte
NASA Official: Charles R. Trepte

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