海洋通报(英文版)
海洋通報(英文版)
해양통보(영문판)
MARINE SCIENCE BULLETIN
2014年
2期
13-27
,共15页
吕和娜%汪一航%张钊%单慧洁%岳云飞
呂和娜%汪一航%張釗%單慧潔%嶽雲飛
려화나%왕일항%장쇠%단혜길%악운비
鳌江口附近海域%潮汐%潮流%环境影响%数值模拟%后评价
鼇江口附近海域%潮汐%潮流%環境影響%數值模擬%後評價
오강구부근해역%조석%조류%배경영향%수치모의%후평개
Aojiang estuary%tide and tidal current%environmental impact%numerical simulation%post-evaluation
收集了近年来鳌江口附近海域多个工程不同阶段5个潮位站的3~5年潮位实测数据和部分海流实测资料,通过对鳌江口附近海域的不同年份的水位资料进行潮汐调和常数分析,鳌江近海海域主要为半日潮区,其中M2分潮的振幅在170 cm ~193 cm;迟角在260°~280°之间,这些站的2007年、2010年、2011年调和常数分析结果相比,主要的半日分潮M2、S2、N2,全日分潮K1、O1及浅水分潮M4、MS4、及M6等分潮振幅、迟角的最大变化分别在1.8 cm ~4.4 cm和3°~7°之间。在初步掌握了鳌江口潮汐潮流特征的基础上,采用无结构的三角形网格和有限体积法的FVCOM海洋数值模型,进行模拟结果验证,计算结果与实测数据符合良好。构建重点年份建设工程合拢产生新的岸线水深的潮汐潮流场,刻画鳌江口建设工程的叠加影响。
收集瞭近年來鼇江口附近海域多箇工程不同階段5箇潮位站的3~5年潮位實測數據和部分海流實測資料,通過對鼇江口附近海域的不同年份的水位資料進行潮汐調和常數分析,鼇江近海海域主要為半日潮區,其中M2分潮的振幅在170 cm ~193 cm;遲角在260°~280°之間,這些站的2007年、2010年、2011年調和常數分析結果相比,主要的半日分潮M2、S2、N2,全日分潮K1、O1及淺水分潮M4、MS4、及M6等分潮振幅、遲角的最大變化分彆在1.8 cm ~4.4 cm和3°~7°之間。在初步掌握瞭鼇江口潮汐潮流特徵的基礎上,採用無結構的三角形網格和有限體積法的FVCOM海洋數值模型,進行模擬結果驗證,計算結果與實測數據符閤良好。構建重點年份建設工程閤攏產生新的岸線水深的潮汐潮流場,刻畫鼇江口建設工程的疊加影響。
수집료근년래오강구부근해역다개공정불동계단5개조위참적3~5년조위실측수거화부분해류실측자료,통과대오강구부근해역적불동년빈적수위자료진행조석조화상수분석,오강근해해역주요위반일조구,기중M2분조적진폭재170 cm ~193 cm;지각재260°~280°지간,저사참적2007년、2010년、2011년조화상수분석결과상비,주요적반일분조M2、S2、N2,전일분조K1、O1급천수분조M4、MS4、급M6등분조진폭、지각적최대변화분별재1.8 cm ~4.4 cm화3°~7°지간。재초보장악료오강구조석조류특정적기출상,채용무결구적삼각형망격화유한체적법적FVCOM해양수치모형,진행모의결과험증,계산결과여실측수거부합량호。구건중점년빈건설공정합롱산생신적안선수심적조석조류장,각화오강구건설공정적첩가영향。
This paper have col ected the measured tides and certain tidal current data in different stages of many projects during past three to five years near the Aojiang River. The harmonic method is used to analyze tide and tidal current data observed at five stations in the sea adjacent to Aojiang River. The results show that the tide is mainly regular and semidiurnal in the sea near Aojiang of Wenzhou. The tidal amplitudes of M2 constituent are between 170 cm-193 cm and the lags are between 260°-280°. According to the comparison of analytical results of harmonic constants of these stations in 2007, 2010 and 2011, the maximum change of tidal amplitudes and phase-lag range for the main semidiurnal tides (M2, S2, N2), the diurnal tide (K1, O1) and the shal ow water tide (M4, MS4, M6) are 1.8 cm-4.4 cm and 3°-7°, respectively. After analyzing the tide and tidal current characteristics of Aojiang River, this paper uses an unstructured grid and Finite-Volume Coastal Ocean Model (FVCOM) to test the results of simulation. The simulated results agree well with the measured data. The new shoreline and depth which are produced by the construction projects closed in important major years, and the tide and tidal current field for the new shoreline and depth are constructed, which describe the superimposed influences of construction engineering in Aojiang estuary.