Articles | Volume 12, issue 1
Atmos. Meas. Tech., 12, 51–82, 2019

Special issue: CALIPSO version 4 algorithms and data products

Atmos. Meas. Tech., 12, 51–82, 2019

Research article 03 Jan 2019

Research article | 03 Jan 2019

CALIPSO lidar calibration at 1064 nm: version 4 algorithm

Mark Vaughan et al.

Data sets

CAL_LID_L1-Standard-V4-10 NASA Langley Research Center

CAL_LID_L2_05kmMLay-Standard-V4-10 NASA Langley Research Center

CAL_LID_L2_05kmCPro-Standard-V4-10 NASA Langley Research Center

CAL_IIR_L2_Track-Beta-V3-30 NASA Langley Research Center

MODIS/Terra Aerosol 5-Min L2 Swath 10km NASA Goddard Space Flight Center

CALIPSO V4.20 Lidar Level 2 ICARE Thematic Center

Short summary
The version 4 (V4) release of the CALIPSO data products includes substantial improvements to the calibration of the CALIOP 1064 nm channel. In this paper we review the fundamentals of 1064 nm lidar calibration, explain the motivations for the changes made to the algorithm, and describe the mechanics of the V4 calibration technique. Internal consistency checks and comparisons to collocated high spectral resolution lidar measurements show the V4 1064 nm calibration coefficients to within ~ 3 %.