Abstract
A scanning Fabry–Perot interferometer (SFPI) was first developed and deployed at the Langfang near Space Environment Field Scientific Observation Station (39.38°N, 116.65°E) of the National Space Science Center, CAS. The instrument is designed to measure the mesospheric and thermospheric wind velocities using the atomic oxygen 557.7-nm and 630.0-nm emissions. Data from February 28 to March 3 and February 28 to March 15 in 2011 were chosen for case study and mean value study, respectively. The errors of the meridional and zonal winds are 6.5 and 7.5 m/s at 557.7-nm and at 630.0-nm, they are 7.1 and 6.6 m/s, respectively. During the whole experiment, the instrument has performed in good condition and provided high-quality data. The mean neutral wind data were consistent with that predicted by HWM07. Good agreement has been found in between the SFPI and a neighbor Meridian Project Fabry–Perot interferometer (MP FPI), with a corresponding coefficient (r 2) larger than 80 %. In general, the scanning FPI meets the design goal, and it is a useful ground-based instrument for measuring mesospheric and thermospheric winds at middle latitudes and is able to provide high-quality data for future scientific studies.
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Acknowledgments
This study was supported by the National High-tech R&D Program of China (2008AA7033050, 2009AA7033050, and 2010AA7033050). The authors thank the partners of the Center for Space Science and Applied Research, CAS, for their kind data support and useful discussions. The authors also thank two anonymous reviewers whose constructive comments are much helpful in improving the quality of the paper.
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Hu, G., Ai, Y., Zhang, Y. et al. First scanning Fabry–Perot interferometer developed in China. Chin. Sci. Bull. 59, 563–570 (2014). https://doi.org/10.1007/s11434-013-0093-5
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DOI: https://doi.org/10.1007/s11434-013-0093-5