| 安徽省CORS坐标时间序列噪声和速度场分析 |
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| 引用本文： | 何蓉,陶庭叶,丁鑫,陶征广.安徽省CORS坐标时间序列噪声和速度场分析[J].大地测量与地球动力学,2021,41(4):368-373. |
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| 作者姓名： | 何蓉 陶庭叶 丁鑫 陶征广 |
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| 作者单位： | 合肥工业大学土木与水利工程学院,合肥市屯溪路193号,230009 |
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| 摘 要： | 利用GAMIT/GLOBK软件解算安徽省卫星定位综合服务系统（AHCORS）2013-01～2018-06数据，得到参考站坐标时间序列，并对其进行噪声分析。结果表明，安徽省境内参考站的最佳噪声模型为白噪声+闪烁噪声（WN+FN）模型。在顾及有色噪声影响时，AHCORS在ITRF2008框架下的平均运动速度为31.72 mm/a，方向为E22.76°S；以欧亚板块为参考的平均运动速度为6.28 mm/a，方向为E2.65°N。垂直方向上整体平均运动速率为-0.71 mm/a，以淮河为界呈现出南方隆升、北方沉降的趋势。其中，大别山地区的隆起速率大于江淮丘陵区和黄山地区，江淮丘陵区抬升速率相对平缓，淮河以南一带平均抬升速率为2.94 mm/a。淮北地区沉降明显，平均沉降速率为10.92 mm/a，最大沉降速率为32.82 mm/a，发生在宿州砀山（SZDS）站，可能是近年来开采矿产资源所致。
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| 关 键 词： | 连续运行参考站 噪声模型 速度场 地壳运动 |
Analysis of Noise and Velocity Field in Coordinate Time Series of Anhui CORS |
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| HE Rong,TAO Tingye,DING Xin,TAO Zhengguang.Analysis of Noise and Velocity Field in Coordinate Time Series of Anhui CORS[J].Journal of Geodesy and Geodynamics,2021,41(4):368-373. |
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| Authors: | HE Rong TAO Tingye DING Xin TAO Zhengguang |
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| Institution: | (College of Civil Engineering,Hefei University of Technology,193 Tunxi Road,Hefei 230009,China) |
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| Abstract: | Using GAMIT/GLOBK software,we calculate the coordinate time series of Anhui continuously operation reference stations(CORS)during 2013-01 to 2018-06.The noise is analyzed and the results show that the optimal noise model of AHCORS is the white noise+flick noise(WN+FN)model.Considering the influence of colored noise,the average velocity of AHCORS reference station under ITRF2008 frame is 31.72 mm/a with a direction of E22.76°S.The average velocity with respect to Eurasian plate is 6.28 mm/a with a direction of E2.65°N.For the vertical direction,the average velocity is-0.71 mm/a,with the Huaihe river as the boundary,showing a trend of uplift in the south and subsidence in the north.Among them,the uplift rate of the Dabie mountain area is higher than that of the Jianghuai and Huangshan areas,the uplift rate of the Jianghuai area is relatively gentle,and the average uplift rate of the area south of the Huaihe river basin is 2.94 mm/a.The subsidence in Huaibei area is obvious,the average subsidence rate is 10.92 mm/a,the maximum subsidence rate is 32.82 mm/a,which is at Dangshan station in Suzhou(SZDS).The obvious subsidence in this area may be caused by the extraction of mineral resources in recent years. |
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| Keywords: | CORS noise model velocity field crustal movement |
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