简介:
简介:我们从一年1988~2002在黄海和Bohai海执行了长期的风波浪hindcast,然后分析了地区性的波浪气候。在模型结果和卫星数据之间的比较在每月吝啬的重要波浪高度上通常是一致的。然后,我们讨论climatological月刊平均数的时间、空间的特征重要波浪高度和吝啬的波浪时期。climatologically空间的模式作为从西北增加到东南并且从被观察对为重要波浪高度和吝啬的波浪的深海的区域近海时期,和模式高度与风有关正在强迫并且本地地形学。波浪参数的季节的变化也是重要的。而且,我们用统计方法计算风和重要波浪高度的极端价值。结果表明N年的空间模式在黄海和Bohai海归还重要波浪高度,并且我们讨论在强迫的重要波浪高度和风的极端值之间的关系。
简介:AimtolinkingthevariabilityofdroughtinnorthwestChinatotheoceanicinfluenceofNorthAtlanticSSTsatthebackgroundofglobalwarmingandattheregionalclimatechangeshiftingstages,yeararidityindexvariationsinnorthwestChinaandsummerNorthAtlanticseasurfacetemperature(SST)variationsareexaminedforthe44aperiodof1961-2004usingsingularvaluedecomposition(SVD)analysis.ResultsshowthattheSSTanomalies(SSTA)intheNorthAtlanticinsummerreflectedthreebasicmodels.ThefirstSVDmodeofSSTpatternshowsadipole-likevariationwiththepositivecenterlocatedatsouthwestandnegativecenteratnortheastofextratropicalNorthAtlantic.AnditstronglyrelatestothepositivetrendinAIvariationinnorthwestChina.ThesecondcoupledmodesdisplaythecoherentpositiveanomaliesinextratropicalNorthAtlanticSSTandthemarkedoppositetrendofAIvariabilitybetweennorthandsouthofXinjiang.Inaddition,thelagcorrelationanalysisofthefirstmodeofSSTAandgeopotentialheightsat500hPavariationsalsoshowsthattheindicationoftheformerinfluencingthelatterconfiguration,whichresultinhigherairtemperatureandlessprecipitationwhentheSSTAintheNorthAtlanticOceaninsummermotivatedEurasiancirculationofEApattern,furthertoinfluencethewet-dryvariationsinnorthwestChinabytheocean-to-atmosphereforcing.