简介:UsingtheNationalCenterforEnvironmentalPredictionreanalysisdataon1.0°×1.0°gridsanddatafromtheTropicalCycloneyearbook(2000),adiagnosticanalysisandnumericalsimulationwereperformedtoinvestigatethecharacteristicsandmechanismunderlyingtherapidweakeningoftyphoonXangsane.TheresultsshowthatasharpdeclineintheintensityoftyphoonXangsaneresultedfromitsmovementintothecoolseasurfacetemperatureareaintheEastChinaSea,theintrusionofcoldairfromthemainlandintothetyphoon,andarapidincreaseoftheverticalwindshearinthesurroundingenvironment.Animportantfactorthatledtothedemiseofthetyphoonwasasignificantdecreaseinthemoisturetransportintothetyphoon.Furthermore,theresultsofthenumericalsimulationandsensitivityexperimentsindicatethatseasurfacetemperaturelargelymodulatedtherapidweakeningoftyphoonXangsane.
简介:策划人语'电商'发展的迅猛势头有目共睹,时至今日几乎融入了社会的方方面面,并在社会发展中起到了巨大的'催化剂'作用。然而,在'电商'发展提质增效的趋势中,鱼龙混杂,管理方式不完善、诚信体系不健全、市场秩序不规范等问题渐次呈现,亟须采取措施予以解决。这其中,广被消费者'拷问'的症候之一,就是部分'电商'从业人员的诚信堪忧。商务部研究院信用研究所所长韩家平表示,目前'电商'领域失信情况十分严重,影响了正常的市场秩序、侵害了人民群众的合法权益,并且危及了相关产业健康发展。
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