Graphical Abstract
Baron, P., S. Ishii, K. Okamoto, K. Gamo, K. Mizutani, C. Takahashi, T. Itabe, T. Iwasaki, T. Kubota, T. Maki, R. Oki, S. Ochiai, D. Sakaizawa, M. Satoh, Y. Satoh, T. Y. Tanaka, and M. Yasui, 2017: Feasibility study for future spaceborne coherent Doppler Wind Lidar. Part 2: Measurement
simulation algorithms and retrieval error characterization. J. Meteor. Soc. Japan, 95, 319-342.
https://doi.org/10.2151/jmsj.2017-018
Graphical Abstract with highlights
Highlights:
- A feasibility study of tropospheric wind measurements using a coherent Doppler lidar (wavelength of 2.05 μm) aboard a super low altitude satellite is being conducted in Japan.
- We describe a simulator of the measurements and use a summertime month of observations from a polar orbit to characterize the LOS wind retrieval errors and assess the instrument performance.
- 3-d and global cloud and wind fields are the pseudo-truth of an Observing System Simulation Experiment while aerosol data are from the aerosol model MASINGAR constrained with the speudo-truth wind.
- Below 8 km, the ratio of good retrievals is 30%--55% and the median LOS wind error is better than 0.6 m s-1.
- In the upper troposphere, the ratio is less than 15% in the southern hemisphere and high-latitudes. However, the ratio is still about 35% in the northern Tropics and mid-latitudes where ice-clouds frequently occur. The upper-tropospheric median measurement error is between 1-2 m s-1.