Aerosol microphysics retrievals
Preliminary microphysics and ocean data products from HSRL-1 and HSRL-2 co-located Research Scanning Polarimeter (RSP) measurements will be available by downloading the "RSP-MAPP-aerosol-alpha-*" HDF5 files from the NASA GISS RSP website. The retrieval methodology is described in the paper [1] with comparisons to HSRL-1 and HSRL-2 products including AOD, lidar ratio, HSRL-2 355/532 Angstrom exponent, and HSRL-1 ocean measurements. Campaigns processed: TCAP, SABOR.

[1] Stamnes, S., C. Hostetler, R. Ferrare, S. Burton, X. Liu, J. Hair, Y. Hu, A. Wasilewski, W. Martin, B. van Diedenhoven, J. Chowdhary, I. Cetinic, L. K. Berg, K. Stamnes, and B. Cairns. "Simultaneous polarimeter retrievals of microphysical aerosol and ocean color parameters from the "MAPP" algorithm with comparison to high-spectral-resolution lidar aerosol and ocean products." Applied Optics 57, no. 10 (2018): 2394-2413.

CALIPSO-HSRL Underflights
The Cloud-Aerosol Lidar with Orthogonal Polarization (CALIOP) instrument on the Cloud-Aerosol Lidar and Infrared Pathfinder Satellite Observations (CALIPSO) spacecraft has provided global, high-resolution profiles of aerosols and clouds since it became operational on 13 June 2006. From 14 June 2006 to 18 August 2022, the NASA Langley Research Center (LaRC) High Spectral Resolution Lidar (HSRL) has been deployed on several NASA aircraft for a total of 147 underpasses of the CALIPSO satellite to provide validation measurements for the CALIOP data products.

     CALIPSO-HSRL Underflights Data Archive Site

Ocean retrievals
HSRL-1 is capable of measuring depth-resolved in-water backscatter and diffuse attenuation coefficients at 532 nm. HSRL-1 with ocean retrievals has been flown on two field campaigns. The Ship-Aircraft Bio-Optical Research (SABOR) experiment was conducted during the summer of 2014 and the North Atlantic Aerosols and Marine Ecosystems Study (NAAMES) during November 2015, May 2016, and September 2017.

     SABOR - Data

     NAAMES - Data

TiARA for lidar retrievals of aerosol optical and microphysical parameters
Tikhonov Advanced Regularization Algorithm (TiARA) is used for the analysis of data acquired by the NASA Langley Research Center (LaRC) High-Spectral Resolution Lidar (HSRL-2). The purpose of TiARA is to retrieve the aerosol microphysical parameters using HSRL-2 data, and thus to offer a possibility of obtaining the quantitative measure of the spatial and temporal variation of aerosol properties. The outputs of TiARA are the numerous microphysical parameters that can be used for the comparisons with the results of measurements of in situ and remote sensing instruments, and for other related purposes. All the delivered aerosol products are vertically resolved. The vertical resolution of aerosol parameters is critical for some atmospheric applications like, for instance, climate modeling.    + Download the TiARA ATBD PDF Document

Cloud microphysics retrievals
Coming soon.