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A high time resolution synchronous sampling method along with determination of stable carbon isotopes of gaseous water-soluble organic carbon (WSOCg) and particulate water-soluble organic carbon (WSOCp) was realized in this research through equipment modification and method improvement. It was found that WSOCg has significant higher concentration than WSOCp and a more depleted δ13C. Both concentrations of WSOCp and WSOCg have the seasonal variation characteristics of high in winter (WSOCp = 15.7 ± 3.9 μg/m3; WSOCg = 42.4 ± 6.0 μg/m3) and low in summer (WSOCp = 5.9 ± 1.8 μg/m3; WSOCg = 25.2 ± 5.2 μg/m3), with greater increase in WSOCp (167 %) than that in WSOCg (68 %). During wintertime, WSOCp and WSOCg had similar daily variation characteristics of concentration, and opposite daily variation characteristics of δ13C. WSOCp had a bimodal distribution with obvious low value at sunrise and sunset, while δ13C-WSOCp had a unimodal distribution with low in daytime (-24.6 ± 1.1 ‰) and high in nighttime (-22.3 ± 1.7 ‰). WSOCg and δ13C-WSOCg had same distribution with high in daytime and (49.3 ± 8.8 μg/m3; -27.9 ± 1.1 ‰) low in nighttime (38.3 ± 4.6 μg/m3; -29.9 ± 0.4 ‰). Combining the δ13C variation characteristics with the synchronous observation results of meteorological conditions, gaseous precursor pollutants, gaseous oxidants, gaseous acids and fine particle components, the restriction factors of WSOC gas-particle distribution mechanism were discussed. The presence of radiation rather than its intensity decided whether generations process of WSOCp and WSOCg are divided, for δ13C-WSOC of two phases showed significant correlation only during daytime. Meteorological conditions, gaseous precursor pollutants, gaseous oxidants and gaseous acids restrict the gas particle distribution of WSOC by affecting the aging process of WSOCp and WSOCg, gas-particle conversion ratio of semi-volatile organic compounds (SVOC) and the gas phase and liquid phase generation ratio of WSOCp. At the same time, the gas-particle distribution process of WSOC is strongly related to the formation of secondary inorganic ions (nitrate, sulfate, ammonium), and the gas-particle distribution between gaseous nitrous acid and nitrite.

This paper presents a new method which aligns two video sequence images both in space and in time for super resolution. The two sequences are recorded by different cameras which are moved jointly and uncalibrated with unknown but fixed internal and external parameters. The advantage of this method is that it is very simple and practical because of a simple transformation between images within each sequence and much more accurate motion estimation in space domain. This approach solves the issue of severe aliasing using super resolution to images recorded at different times. Experiment has been done with video records that are generated from the same one to examine this approach, great results are obtained and shown in this paper later.