以江苏沿海处于长江三角洲持续徐缓沉降区的3个验潮站为研究对象,综合运用EMD方法和SSA方法进行海面波动的过程和趋势分析。通过迭加EMD提取的长期趋势和长周期组分获得修正的长期趋势,利用SSA对剩余组分进行分解,获得各站位小尺度的海面波动周期序列,各站位间均能较好的对比。在此基础上,针对修正的长期趋势分量,建立未来海面变化趋势的预测模型,对各站位未来百年相对海面变化的上升值进行预测和对比。
In this paper three tide gauge stations along the coast of northern part of Jiangsu Province were selected as the objects of study, which were located in the sustainable slowly settlement areas of Changjiang (Yangtze) River Delta. Fluctuation and trend of sea level change were analyzed in virtue of EMD and SSA methods comprehensively. The adjusted long-term trends were obtained through the sum of trends that extracted by EMD and long-term cycle components. Short-term wave cycles were gained from the rest components by means of SSA method and each station could be properly compared. Combined with the research findings of local ground rise or fall, the absolute sea level changes were discussed and prediction models were built according to the adjusted long-term trends. Based on the mentioned above, relative sea level changes in the coming one hundred years were calculated and compared with results of IPCC.
[1] 谢志仁,夏胜俊.面向未来的海面变化研究[J].地学前缘,1997,4(2):235~246.
[2] 朱 诚, 张 强, 张 芸, 等.长江三角洲长江以北地区全新世以来人地关系的环境考古研究[J]. 地理科学,2003,23(6): 705~712.
[3] 李加林,王艳红,张忍顺,等. 海平面上升的灾害效应研究——以江苏沿海低地为例[J]. 地理科学,2006,26(1) :87~93.
[4] 欧素英,陈子燊.小波变换在相对海平面变化研究中的应用[J].地理科学,2004,24(3):358~364.
[5] 黄镇国,张伟强,陈奇礼,等.海平面上升对广东沿海工程设计参数的影响[J].地理科学,2003,23(1):39~41.
[6] 杨桂山.三峡与南水北调工程建设及海平面上升对上海城市供水水质的可能影响[J].地理科学,2001,21(2):123~129.
[7] 黄镇国,张伟强,陈特固.香港/澳门近72年海平面变化曲线[J].地理科学,1999,19(3):282~285.
[8] 杨清书,罗宪林珠江口伶仃洋海平面变化趋势研究[J].地理科学,1999,19(2):125~127.
[9] 杨世伦,杜景龙,郜 昂,等.近半个世纪长江口九段沙湿地的冲淤演变[J].地理科学,2006,26(3):335~339.
[10] 龚 强,袁国恩,汪宏宇,等.辽宁沿海地区风能资源状况及开发潜力初步分析[J].地理科学,2006,26(4):483~489.
[11] 吴江滢,邵晓华,汪永进.南京年纹层石笋δ18O记录的冰期气候事件特征[J].地理科学,2007,27(1):75~80.
[12] 谢远云,李长安,王秋良,等.江汉平原近3 000 年来古洪水事件的沉积记录[J].地理科学,2007,27(1):81~85.
[13] 杜景龙,杨世伦.长江口北槽深水航道工程对周边滩涂冲淤影响研究[J].地理科学,2007,27(3):390~394.
[14] IPCC (Intergovernmental Panel on Climate Change).Climate Change,The Intergovernmental Panel on Climate Change Scientific Assessment.Houghton J T,Ding Y,Griggs D J(Eds).New York:Cambridge University Press (abridge),2001.881.
[15] 谢志仁. 海面变化的未来趋势[M].//见:施雅风,赵希涛(主编). 中国气候与海面变化及其趋势和影响 (2) 中国海面变化(第8章). 济南:山东科技出版社,1996:312~358.
[16] Xiqing,Chen.Sea Level Changes Since the Early 1 920’S From the Long Records of Two Tidal Gauges in Shanghai,C na[J].Journal of Coastal Research,1991,7(3):787-799.
[17] 王艳红, 张忍顺,谢志仁,等. 平均高潮位记录分析淤泥质海岸的相对海面变化[J]. 海洋通报,2004,23(5):59~64.
[18] Huang N E,Shen Z,Long S R,et al. The empirical mode decomposition and the Hilbert spectrum for nonlinear and non-stationary series analysis[J].Proc R Soc Lond A,1998,454(1971):903-995.
[19] Broomhead D S, King G D. Extracting qualitative dynamics from experimented data[J]. Physica D, 1986, 20(2-3):217 -236.
[20] 任美锷.黄河长江珠江三角洲近30年海平面上升趋势及2030年上升量预测[J].地理学报,1993,48(5):385~393.
[21] 施雅风,朱季文,谢志仁,等.长江三角洲及毗连地区海平面上升影响预测与防治对策[J].中国科学(D辑),2000,30(3):225~232.
[22] 黄镇国,张伟强,吴厚水,等.珠江三角洲2030年海平面上升幅度预测及防御方略[J].中国科学(D辑),2000,30(2):202~208.
[23] 张锦文.中国沿岸海平面上升的预测模型[M].//见:杜碧兰(主编).海平面上升对中国沿海主要脆弱区的影响及对策.北京:海洋出版社,1997:47~54.
[24] 田素珍,马继瑞.海平面上升趋势数据的诊断及中国沿海海平面的上升趋势探讨[J].海洋通报,1995,14(6):13~18.
[25] 黄立人.海面变化趋势的动态预测[J].海洋通报,1992,10(1):1~6.
[26] 左军成,陈宗镛,周天华.中国沿岸相对海面变化的本征分析和预测[J].海洋与湖沼,1995,26(3):331~337.
[27] 郑大伟,虞南华.上海地区海平面上升趋势的长期预测研究[J].中国科学院上海天文台年刊,1996,17:36~45.
[28] 秦曾灏,李永平.上海海平面变化化规律及长期预测方法初探[J].海洋学报, 1997, 19(l):1~7.
[29] 夏华永,李树华.带周期项的海平面变化灰色分析模型及广西海平面变化分析[J].海洋学报,1999,21(2):9~17.
[30] 黄立人,博万举.确定海面长期趋势变化的讨论[J].地壳形变与地震,1992,12(8):44~48.
[31] 谢志仁.海面变化与环境变迁——海面-地面系统和海- 气-冰系统初探[M].贵阳:贵州科技出版社,1995.
[32] 王艳红, 张忍顺,谢志仁,等. 未来江苏中部沿海相对海面变化预测[J].地球科学进展,2004,19(6):992~996.
