中国太阳总辐射气候计算方法的进一步研究   总被引：12，自引：4，他引：12  

孙治安  施俊荣 《南京气象学院学报》1992,15(2):21-29

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夏季风场40—50天振荡的全球分布及波动特征   总被引：1，自引：0，他引：1  

徐建军  何金海 《南京气象学院学报》1992,15(3):358-367

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我国降水自然区域的客观划分   总被引：4，自引：6，他引：4  

朱乾根  陈晓光 《南京气象学院学报》1992,15(4):467-475

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青藏高原夏季降水及其受欧亚雪盖影响的物理机制     

徐建军  陆菊中 《南京气象学院学报》1992,15(4):517-524

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微花岗岩类包体与岩浆的扩散作用和熔离作用——以诸广山桂东、上堡岩体为例   总被引：1，自引：0，他引：1  

周金城  徐夕生 《地质论评》1992,38(3)

诸广山加里东期桂东及上堡黑云母花岗闪长岩体中的微花岗岩类包体包括同源包体和析离体。同源包体与寄主岩的暗色矿物组成不同,主要含角闪石;析离体与寄主岩中的暗色矿物组成相同,主要含黑云母。包体与寄主岩的矿物、岩石化学、地球化学及产状特征对比表明,这两种包体的形成涉及到岩浆内部组分的相互扩散、岩浆的熔离、对流及派生岩浆的相互混合。形成微花岗岩类包体的偏基性岩浆大多数是中酸性岩浆自身演化的产物。微花岗岩类包体的形成是岩浆结晶过程的记录。  相似文献   

CRITICAL CONDITION FOR THE INITIATION OF SUSPENSION     

CHENG Niansheng  ZHU Lijun Senior engineer  Nanjing Hydraulic Research Institute  China Engineer  Nanjing Hydraulic Research Institute  China 《国际泥沙研究》1993,(3)

L INTRODUCTIONSediment particles move either as bed load or as suspended load, depending on thecharacteristics of flow condition and on the properties of the sediment particlethemselves. Exchange between bed load and bed material takes place directly, while thesuspended load, under general conditions, can hardly interact with the stationary bedwithout the bed load as a medium. It is necessary to take into full account theinteractions of suspended load, bed load and bed material when bed d…  相似文献   

RETRIEVAL OF HORIZONTAL WIND PERTURBATION FIELDS FROM SIMULATED SINGLE DOPPLER RADAR OBSERVATIONS          下载免费PDF全文

顾松山  I.Zawadzki  S.Laroche 《Acta Meteorologica Sinica》1994,(1)

The application of the single Doppler radar dataset analysis is usually confined to the assumption that the actualwind is linearly distributed or uniform locally.Following some dynamic features of convective weather,a conceptualmodel of moderate complexity is constructed,wherewith a horizontal wind perturbation field is retrieved directly fromthe single Doppler radar measurements.The numerical experiments are based on a 3-D cloud model-generatedconvective cell,whose radial velocity component is taken as the radar observations that are put into the closed equationsbased on the conceptual model to retrieve the horizontal wind perturbation field.After the initial field is properlytreated,the retrieval equation is solved in terms of the 2-D FFT technique and the sensitivity to noise is examined.Finally,contrast analysis is done of the retrieved and the cloud model output wind fields,indicating the usefulness of theapproach proposed in this paper.  相似文献   

ATMOSPHERIC WAVE AND ITS PHYSICAL ESSENCE AS REVEALED BY CHANGED CORRELATION COEFFICIENTS AND CORRELATION FIELD          下载免费PDF全文

管兆勇  黄士松 《Acta Meteorologica Sinica》1994,(2)

Formal change is made of the correlation coefficient(COCOEF)expression,leading to a new formula consisting ofFourier spectral coefficients that indicates a direct connection between the new form and atmospheric dynamicequations,thus resulting in a dynamic equation represented by COCOEF,which is meaningful in exploring a large-scaledynamic process in terms of the correlation field because the connection revealed by the field can have dynamic explana-tion with the aid of the new formula.  相似文献   

Primary Study of Surface-Wave Magnitude Determined by Chinese Stations     

Ge Huancheng  Yu Meixuan  Xu Fuxi  Ni YueweiSeismological Bureau of Jiangsu Province  Nanjing  China 《中国地震研究》1994,(3)

Using the data set of 20±2 sec and(A/T)max of surface waves recorded by Type-763 and Type-SK seismographs from five stations in Beijing and elsewhere,the mean square deviations u and relative mean deviations D of Ms values determined by five calibration functions(a,a763,a300 aN and from Msz(NEIS)are compared and analyzed.Results show that a and a763 are rather good between 20° and 160°;and a763 are rather good between 10 and 30 for 20 sec; a300 is relatively good between 160 and 179.  相似文献   

5—6月高空候平均长波,超长波的若干统计特征     

陈静  王得民 《南京气象学院学报》1991,14(3):300-307

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