Fig. 1. Laser atmospheric transmittance as a function of precipitable water for several wavebands at several typical zones. (a) 0.02-nm bandwidth; (b) 12-nm bandwidth

Fig. 2. Ratio of narrowband transmittance to broadband transmittance as a function of precipitable water at several typical zones. (a) Korla; (b) Hefei; (c) Weining

Fig. 3. Flow chart of calculation model of measurement method for extracting laser atmospheric transmittance

Fig. 4. Comparison of transmittance measured by ISP-type near-infrared sun-photometer and POM02-type sun-photometer. (a) 0.87 μm; (b) 1.63 μm

Fig. 5. Comparison of precipitable water measured by ISP-type near-infrared sun-photometer and POM02-type sun-photometer

Fig. 6. Comparisons of 1.315-μm transmittance extracted from 1.31-μm and 1.32-μm data. (a) Comparison results in september; (b) comparison results in winter; (c) relationship between 1.315-μm transmittance error and precipitable water

Fig. 7. Comparison of precipitable water reversed from 1.32-μm and 0.94-μm data

Fig. 8. Comparison of 0.87-μm transmittance measured by ISP-type near-infrared sun-photometer and POM02-type sun-photometer. (a) Xinjiang, 20190909; (b) Xinjiang, 20190910; (c) Xinjiang, 20190917; (d) Xinjiang, 20190919

Fig. 9. Comparison of 1.63-μm transmittance measured by ISP-type near-infrared sun-photometer and POM02-type sun-photometer. (a) Xinjiang, 20190909; (b) Xinjiang, 20190910; (c) Xinjiang, 20190917; (d) Xinjiang, 20190919

Fig. 10. Comparison of precipitable water measured by ISP-type near-infrared sun-photometer and POM02-type sun-photometer. (a) Xinjiang, 20190909; (b) Xinjiang, 20190910; (c) Xinjiang, 20190917; (d) Xinjiang, 20190919

Fig. 11. Comparison of 1.315-μm transmittance extracted from 1.31-μm data measured by ISP-type near-infrared sun-photometer and result calculated by transmission software. (a) Xinjiang, 20190909; (b) Xinjiang, 20190910; (c) Xinjiang, 20190917; (d) Xinjiang, 20190919