Back to Search
Start Over
Aerosol measurements by SPEXone on the NASA PACE mission: expected retrieval capabilities
- Source :
- Journal of Quantitative Spectroscopy and Radiative Transfer. 227:170-184
- Publication Year :
- 2019
- Publisher :
- Elsevier BV, 2019.
-
Abstract
- SPEXone is a Multi-Angle Polarimeter instrument that is baselined to fly on the NASA Plankton, Aerosol, Cloud, and ocean Ecosystem (PACE) mission, to be launched in 2022. It will perform hyper-spectral measurements of radiance and polarization in the spectral range 385–770 nm at 5 viewing angles ( ± 57o, ± 20o, 0o) with high accuracy (0.003) on the Degree of Linear Polarization (DoLP). Based on linear error analysis and retrievals on synthetic data, we conclude that SPEXone has the capability to significantly advance the accuracy of retrievals of optical and microphysical aerosol properties compared to past, present, and planned satellite instruments, as required for better quantification of the effect of aerosols on climate. The products that SPEXone will provide are Aerosol Optical Depth (AOD), Single Scattering Albedo (SSA), Aerosol Layer Height (ALH), effective radius, effective variance, complex refractive index, particle number column for both the fine and coarse mode as well as a shape parameter for the coarse mode. PACE will carry two other instrument: the Ocean Color Instrument (OCI) which is the main instrument and the Hyper-Angular Rainbow Polarimeter-2 (HARP-2). The synergistic use of SPEXone with these instruments will further increase retrieval accuracy, in particular for coarse mode parameters and absorption, and will provide unprecedented capability for aerosol above cloud retrievals.
- Subjects :
- Effective radius
Radiation
010504 meteorology & atmospheric sciences
Single-scattering albedo
Linear polarization
Polarimeter
01 natural sciences
Atomic and Molecular Physics, and Optics
Synthetic data
Aerosol
Ocean color
Radiance
Environmental science
Spectroscopy
0105 earth and related environmental sciences
Remote sensing
Subjects
Details
- ISSN :
- 00224073
- Volume :
- 227
- Database :
- OpenAIRE
- Journal :
- Journal of Quantitative Spectroscopy and Radiative Transfer
- Accession number :
- edsair.doi...........fff74b41f498baa1cbf12b7530df0f91