海洋科学进展
海洋科學進展
해양과학진전
JOURNAL OF OCEANOGRAPHY OF HUANGHAI & BOHAI SEAS
2010年
1期
1-7
,共7页
郑斌鑫%诸裕良%于东生%曾志%陈楚汉
鄭斌鑫%諸裕良%于東生%曾誌%陳楚漢
정빈흠%제유량%우동생%증지%진초한
珠江口%八大口门%断面流量%径潮作用
珠江口%八大口門%斷麵流量%徑潮作用
주강구%팔대구문%단면류량%경조작용
the Pearl River Estuary%the eight main entrances%the sectional flow capacity%the differerce of ebb flowing processes
根据2006-2007年期间在珠江口八大口门进行的丰水期大、中、小潮3个航次、平水期和枯水期各1个航次的全潮同步水文观测资料,分析了八大口门的潮流特性、涨落潮通量等特征,并建立了逐时潮差与流量的相关关系.在丰水期小潮期间,八大口门受强热带风暴"碧利斯"带来的强降雨的影响,潮流特性、断面流量等水文特征出现较大的变化,逐时潮差与流量的相关关系与其他航次相比表现出不同的规律.在无强径流影响下,逐时潮差与流量的相关关系用线性方程拟合,相关性较好;但在强径流影响下,则采用二次多项式拟合较为合适,且拟合曲线的左右侧表现出涨、落潮过程的区别.
根據2006-2007年期間在珠江口八大口門進行的豐水期大、中、小潮3箇航次、平水期和枯水期各1箇航次的全潮同步水文觀測資料,分析瞭八大口門的潮流特性、漲落潮通量等特徵,併建立瞭逐時潮差與流量的相關關繫.在豐水期小潮期間,八大口門受彊熱帶風暴"碧利斯"帶來的彊降雨的影響,潮流特性、斷麵流量等水文特徵齣現較大的變化,逐時潮差與流量的相關關繫與其他航次相比錶現齣不同的規律.在無彊徑流影響下,逐時潮差與流量的相關關繫用線性方程擬閤,相關性較好;但在彊徑流影響下,則採用二次多項式擬閤較為閤適,且擬閤麯線的左右側錶現齣漲、落潮過程的區彆.
근거2006-2007년기간재주강구팔대구문진행적봉수기대、중、소조3개항차、평수기화고수기각1개항차적전조동보수문관측자료,분석료팔대구문적조류특성、창락조통량등특정,병건립료축시조차여류량적상관관계.재봉수기소조기간,팔대구문수강열대풍폭"벽리사"대래적강강우적영향,조류특성、단면류량등수문특정출현교대적변화,축시조차여류량적상관관계여기타항차상비표현출불동적규률.재무강경류영향하,축시조차여류량적상관관계용선성방정의합,상관성교호;단재강경류영향하,칙채용이차다항식의합교위합괄,차의합곡선적좌우측표현출창、락조과정적구별.
Hydrographic measurements of the full tidal hours were synchronized at the 8 main entrances to the Pearl River Estuary,including the measurements respectively in the spring tide,the normal tide,and the neap tide of the 2006 wet season,those of the 2006 normal season,and those of the 2007 dry season. The measurement data are used to analyze the tidal current features,the flooding flow capacities,the ebbing flow capacities,and the others at the 8 entrances,and to correlate the hourly tidal range with the flow capacity. Right in the neap tide of the wet season when the strong tropical storm,"Billis",brings heavy rainfall to the area,the tidal features,the flow capacity,and the other hydrographic characteristics become abnormal,and the correlation between the hourly tidal range and the flow capacity are different from the other times. The correlation can be better fitted by a linear equation if the runoff is not strong. It is better to use a quadratic multinomial for the fitting if the runoff is strong,and the flooding cases and the ebbing cases can be seperated with each other by the multinomial fitting curve.