According to temperature and precipitation data from 1951 to 2000 in Fuxin area,the climatic change characteristics were analyzed with mathematical statistics method.
With the monthly precipitation data of 7 sampling meteorological stations in the coastal area of Jiangsu Province from 1956 to 2000,the anomalous percentage of precipitation,the standardized variable of precipitation and the Z-index are compared.
Based on the daily precipitation data of flood season(Mar to September) in 1960-2004 from 125 stations in Northwest China,we firstly determined the extreme precipitation threshold values for every station,then counted the extreme precipitation event frequency in flood season and analyzed their temporal and spatial characteristics.
With the cumulative frequency method the thresholds of extreme precipitation event was defined according to daily precipitation data of 68 stations in Anhui province during last 40 years.
In this paper,according to the annual temperature and precipitation data from 8 meteorological stations in the Aletai area in Xinjiang during the period of 1961~2000,we calculate the change of climatic productivity in Aletai area during the past 40 years by using Tharnthwaite Memorial model.
The interannual variaton of Australian High(AH) and its effect on the Asia-Australia monsoon circulation system(AAMCS) during 1948-2002 are analyzed, based on the data reanalyzed by NCEP/NCAR and the rainfall data of the 160 stations in China,The main results are below.
Using rainfall data from 1961 to 2000 in Longnan ,distributions of precipitation and rainstorm are analyzed . Using sounding data ,the large scale synoptic meteorology circulation patterns of rainstorm are catalogued. Using T106 data from 1995 to1999,the mean field of synoptic meteorology models are calculated.
Raingauge rainfall data of nearly 40 years (1951-1994) at 86 stations of Guangdong province in Southern China are used to analyze the features of dryness and wetness during the 40-year period.
Based on the NCEP/NCAR reanalysis datasets from 1954 to 1998 and the monthly rainfall data of 160 stations in China at the same time, the relation between the intensity of the tropical easterly on 100 hPa and summer rainfall in North China has been studied.
Based on global land monthly precipitation dataset PREC/L during the period of 1948-2001, NCEP/NCAR reanalyzed monthly mean wind data and global monthly SST grid data edited by British Meteorological Bureau .
This paper comprehensively analyzed the global land precipitation dataset (G55wld0098) updated by Dr. Mike Hulme latestly and found that this dataset is accurate enough for describing the change of large scale precipitation. We also interpolate the data of precipitation records in global land(PREC/L) to replace the lack records of G55wld0098,and then get the 1920-2000 global precipitation field without lacking records.
The reliability of CRU05 precipitation dataset constructed by Climatic Research Unit of University of East Anglia of United Kingdom is examined using the precipitation data of twenty two observation stations in north of China.
Based on global land monthly precipitation dataset PREC/L during the period of 1948-2001, the flood/drought and the secular trend variation of precipitation of global, the Northern Hemisphere (NH) ,the Southern Hemisphere(SH), Eurasia, Africa, Australia, North America, South America and Antarctica in December-February (DJF) are investigated.
Using a 40-year daily precipitation dataset including 134 stations from 1962 to 2001, the large-scale distribution patterns of precipitation anomalies over China were investigated.
Using the monthly soil temperature date in the depth of 3.2m during 1980~2000 in 141 stations and the precipitation date during 1961~2000 in 160 stations,through the earth-atmosphere chart method ,the paper analyzed"geothermal vortexes"in Northwest China .
With EOF and REOF analyse techniqne, the spatial anomalous features and time evolution rule and the relation between winter soil temperature and summer precipitation anomaly in China are studied using soil temperature date in the depth of 3.2 m in December, January and February of 1980_1997 in 141 stations and the precipitation date in June, July and August of 1951_1997 in 160 stations.
Based on the monthly precipitation date from 2 stations in the South of Shandong Province,the secular variation tendency of precipitation and the drought frequency are analyzed with the accumulated anomalous,skids the t-test and Kruskal-Wallis assay method.
Based on the annual precipitation data, we analyzed the spatial distribution of precipitation in Sichuan Province in China as well as the temporal-spatial variation and the corresponding influence factors involved.
The global land monthly precipitation data (PREC/L) are used to investigate the relation between the global land annual precipitation and ENSO during 1948-2000, and the results of composite analysis are tested with Monte Carlo simulations.
Decadal rainfall data of 228 stations in 1951-1970 and upper-wind records in 1960-1969 published by the Central Meteorological Bureau and relevant provincial organizations are employed in the analysis.
Harmonic analysis of hourly SW monsoon rainfall data of 33 stations show that for 19 stations, the first harmonic accounts for more than 50% of the variance of the rainfall series.
The break of the monsoon is defined by using the rainfall data over Hong Kong Meteorological parameters provided by the European Centre for Medium-Range Weather Forecasts (ECMWF) for the period 1985-1990 are examined.
Analysis of seasonal rainfall data of 50 stations spread over a period of 41 years suggests that a linear relationship fits better than the logarithmic relationship when seasonal rainfall versus number of rainy days is studied.
Louis metropolitan area from 2005 to 2030 using three economic growth scenarios (base, low, and high) and a long-term precipitation dataset were used to predict the mean annual surface runoff and mean annual NPS pollutant loads in the region.
The dataset, Iberian monthly Precipitation Dataset (IPD), consists of monthly precipitation data over a 25?km × 25?km grid from 1st January 1961 to 31st December 2003.
The composite and the anomaly maps of monthly mean 500mb circulation of Eurasia for the selected very dry and very wet months of June over the middle and lower reaches of Yangtze River through the 20 years (1954--1974) period are analysed in order to reveal the anomalous circulation features in these months and their proceeding ones from last October. By comparing the correlation fields between the June monthly rainfall and Eurasian 500 mb heights of the preceeding months with the Eurasian 500mb anomalies d...
The composite and the anomaly maps of monthly mean 500mb circulation of Eurasia for the selected very dry and very wet months of June over the middle and lower reaches of Yangtze River through the 20 years (1954—1974) period are analysed in order to reveal the anomalous circulation features in these months and their proceeding ones from last October. By comparing the correlation fields between the June monthly rainfall and Eurasian 500 mb heights of the preceeding months with the Eurasian 500rob anomalies d...
The heights of rain formation in cumulus clouds with various vertical velocities, microstructures and cloud base temperatures are calculated, using a warm-rain formation model. The calculated results agree fairly with the observed heights of the cumulus clouds with 50% probability of raining in many regions in the world It is found that the rain formation heights differ appreciably and depend mainly upon the vertical velocity and to less degree on microstracture and cloud base temperature.