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Seasonal Variations of Yellow Sea Fog:Observations and Mechanisms

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Seasonal Variations of Yellow Sea Fog:Observations and Mecha...

BLIND ADAPTIVE XPIC BASED ON HOS

“海洋动力过程与天气、气候变化”联合学术年会

作者： SU-PING ZHANG~*,SHANG-PING XIE~(+,*), QIN-YU LIU~*,YU-QING YANG~#,XIN-GONG WANG~#,ZHAO-PENG REN~* * Physical Oceanography Laboratory,and Ocean-Atmosphere Interaction and Climate Laboratory,Ocean University of china,qingdao 266100,china + International Pacific Research Center and Department of Meteorology,SOEST, University of Hawaii,Honolulu,HI 96822,USA # qingdao meteorological bureau,qingdao,china

Sea fog is frequently observed over the Yellow Sea,with an average of 50 fog days on the Chinese coast during *** Yellow Sea fog season is characterized with an abrupt onset in April in the northwestern basin and an abrupt,basin-wide termination in *** study investigates the mechanisms for such step-like evolution inexplicable from the gradual

关键词： western Seasonal Variations of Yellow Sea Fog:Observations and Mechanisms

来源： cnki会议评论

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Journal of Electronics(china) 2001年第2期18卷 113-120页

作者： Fu Haiyang Yang Longxiang (Dept. of Comm. Eng., Nanjing University of Posts and Telecomm., Nanjing 210003)Peng Jianglong (qingdao TeJecommunication bureau, qingdao 266000) Dept.of Comm.Eng. Nanjing University of Posts and Telecomm.Nanjing 210003 qingdao Telecommunication bureau Qingdao 266000

This paper presents a new blind XPIC and a new adaptive blind deconvolutional algorithm based on HOS processing, which separates and equalizes the signals in real time. The simulation results demonstrate that the performance of the proposed adaptive blind algorithm,compared with the conventional algorithms, is outstanding with the feature of feasibility, stability and fast convergence rate.

关键词： High order statistics(HOS) Blind deconvolutional algorithms Cross-polarization interference canceller (XPIC)

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THE RELATIONSHIP BETWEEN SHRIMP RESOURCES IN THE HUANGHAI AND BOHAI SEAS AND SEA SURFACE TEMPERATURE ABNORMALITY

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Acta Oceanologica Sinica 1985年第4期 548-556页

作者：李若钝 Institute of Oceanography National bureau of Oceanography qingdao

In this paper the relationship between the variation of shrimp resources （which is sensitive to the sea temperature of the Huanghai and Bohai Seas） and the equatorial sea surface temperature is analysed, the results obtained showing high correlation between the two. Therefore, a new approach to studying long-term variational law of fishery resources and forecasting method is made through large-scale air-sea interaction.

关键词： SHRIMP THE RELATIONSHIP BETWEEN SHRIMP RESOURCES IN THE HUANGHAI AND BOHAI SEAS AND SEA SURFACE TEMPERATURE ABNORMALITY SST

THE HUANGHAI SEA IN THE LAST GLACIAL PERIOD——ACQUISITION AND STUDY OF SOME NEW DATA ON ITS PALEOGEOGRAPHY

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Science in china,Ser.B 1982年第2期25卷 200-213页

作者：徐家声高建西谢福缘 Institute of Oceanography National bureau of Oceanography qingdao

Based on the studies on the sediments of the Huanghai Sea （Yellow Sea） formed in thelast glacial period, the complicated palaeogeographic environments of the Huanghai Sea arefound. By the data newly found in the peat and shell layers, it is revealed that the HuanghaiSea is three times exposed and dried as a continent. And the marine sediments are foundfor the first time in the so-called 'continental sediment' formed in the early of thelast glacial period. The evolutionary pattern and geological chronicle of natural environ-ments of the Huanghai Sea can primarily be established by the facts that the reversed polarevents of palaeomagnetic variations in the cores are determined and that the peat layer isdated by using 14C.

关键词： THE HUANGHAI SEA IN THE LAST GLACIAL PERIOD ACQUISITION AND STUDY OF SOME NEW DATA ON ITS PALEOGEOGRAPHY SEA

Asymmetrical Change Characteristics of Maximum and Minimum Temperatures in Shangqiu in Recent 50 Years

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meteorological and Environmental Research 2011年第10期2卷 50-54,58页

作者： ZHANG Yun-xia Shangqiu meteorological bureau in Henan Province,Shangqiu 476000,china

[Objective] The research aimed to analyze temporal and spatial variation characteristics of temperature in Shangqiu City during 1961-2010.[Method] Based on temperature data in eight meteorological stations of Shangqiu during 1961-2010,by using trend analysis method,the temporal and spatial evolution characteristics of annual average temperature,annual average maximum and minimum temperatures,annual extreme maximum and minimum temperatures,daily range of annual average temperature in Shangqiu City were analyzed.M-K method was used to determine mutation year of temperature.[Result] The annual average temperature,annual average minimum temperature and annual extreme minimum temperature respectively rose at 0.122,0.255 and 0.488 ℃/10 *** variation trend of annual average maximum temperature wasn’t *** daily range of annual average temperature and annual extreme maximum temperature respectively declined at-0.217 and-0.292 ℃/10 *** from spatial distribution,the increase amplitudes of annual average temperature,annual average minimum temperature and annual extreme minimum temperature were all large in the east and small in the *** decrease amplitude of daily range of annual average temperature was large in the east and small in the *** decrease amplitude of annual extreme maximum temperature was large in the west and small in the *** annual average maximum temperature had trends of increase and *** annual average temperature,annual average minimum temperature and daily range of annual average temperature all mutated in *** annual average maximum temperature didn’t have obvious mutation *** annual extreme maximum temperature mutated in *** annual extreme minimum temperature respectively mutated in 1989 and 1999.[Conclusion] The research played important guidance significances in adjustment of agricultural production structure,regional climate planning,reasonably using climate resource and replying climate change in Shangq

关键词： Average temperature Maximum and minimum temperatures Extreme temperature Daily range Climate change Temporal and spatial variation characteristics china

SEOF Analysis on the Precipitation and Temperature in china during 1951-1999

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meteorological and Environmental Research 2011年第4期2卷 39-41,46页

作者： LIU Hua Maoming meteorological bureau in Guangdong Province, Maoming 525000, china

[Objective] The research aimed to study the seasonal variation characteristics of precipitation and temperature in china during 1951-1999. [Method] Based on the monthly average precipitation and temperature data in 160 stations from January, 1951 to February, 1999, which were provided by china meteorological Administration, the spatial-temporal variation characteristics of precipitation and temperature in 48 years were studied by using SEOF method. [Result] SEOF analysis of precipitation:SEOF analysis of the first modal showed the four-season propulsion of rain belt in china from south to north. Seen from the time coefficient, as a whole, the precipitation in china decreased slightly during the 1960s-1970s. After the 1970s, the precipitation had the increase trend and was the decrease trend after the 1980s. SEOF analysis of temperature:the first modals of precipitation and temperature configured well in the space. In the dry zone where the precipitation was less, the temperature variation was obvious. Seen from the time sequence, the temperature in china during 1951-1999 was low, and it was the low temperature period in the 1950s. The temperature rose slightly during the 1950s-1960s, and it entered into the low temperature period again from the middle and latter periods of 1960s to early the 1970s. From the metaphase of 1970s to the end of 1990s, the temperature increased relatively and stably. [Conclusion] The research provided the theory basis for studying the climate variation in china.

关键词： Precipitation Temperature SEOF analysis china

The Utilizing of Agro-climatic Resources and Preventing Measures of meteorological Disasters in Fushun

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meteorological and Environmental Research 2011年第3期2卷 61-64页

作者： GAO Shang-wen1,LI Jin-yi2,LI Tao3,ZHANG Ying4,CHI Gui-fu5 1.meteorological bureau of Huanren Manchu Autonomy County of Liaoning Province,Huanren 117200,china 2.Liaoning meteorological bureau,Shenyang 110001,china 3.Liaoning Lightening Protection Technology Service Center,Shenyang 110015,china 4.Liaoning meteorological Schoo,Shenyang 110015,china 5.Fushun meteorological bureau,Fushun 113006,china

Based on the meteorological data in Fushun,Qingyuan and Xinbing from 1961 to 2008,the status quo of major agro-climatic resources in Fushun were *** abundant rainfall,sufficient sunshine and rich thermal resources were suitable for the development of modern agricultural *** specific measures of effective use of climate resources were put forward according to geographical location and climatic characteristics of *** advantages of agro-climate resources were exerted for large edible fungi industry;effective accumulated temperature was applied for adjustment of plantation structure;three-dimensional agriculture in the mountainous area was developed *** main types of meteorological disasters constraining agricultural development in Fushun and their hazards were summarized,including droughts,floods,hail,*** addition,some scientific preventing measures of meteorological disaster were proposed.

关键词： Agro-climatic resources meteorological disasters Preventing measures Fushun china

A NUMERICAL STUDY OF THE EFFECT OF TAIWAN ISLAND TERRAIN ON TYPHOON HAITANG (0505) TRACK

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Journal of Tropical Meteorology 2008年第1期14卷 37-40页

作者：余贞寿侯球锋王海东吴贤笃李怀川 Wenzhou meteorological bureau Wenchen meteorological bureau

The track of Typhoon Haitang (0505), which passed through the Taiwan Island and landed again, has been successfully simulated by using the non-hydrostatic mesoscale atmospheric model MM5. Its structure is analyzed on the landing stage, and it is found that there exist good relationships between the typhoon abnormal moving track and its asymmetry structure. The effect of terrain of Taiwan Island on the typhoon Haitang, which made it rotate before landing and present a"V"type abnormal moving track in Taiwan straits, has also been simulated. Further analysis shows that the terrain of Taiwan Island not only directly affects the typhoon moving track, but also changes the typhoon track by affecting its asymmetric structure. Therefore, the typhoon asymmetric structure and the effect of terrain of Taiwan Island together results in the abnormal rotating track. The terrain of Taiwan Island tends to increase the SW-NE asymmetric structure of the typhoon and has different effect on SE-NW asymmetric structure during the landfall process of typhoon Haitang before entering and moving out of the Taiwan straits.

关键词： typhoon asymmetry structure moving track terrain

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Influence of Climate Warming on the Agriculture in Shenbei New District of Shenyang

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meteorological and Environmental Research 2011年第5期2卷 58-60,64页

作者： WU Ke Shenbei meteorological bureau in Shenyang City,Shenyang 110121,china

[Objective] The research aimed to study the influence of climate warming on the agriculture in Shenbei New District of Shenyang in recent 38 years.[Method] Based on the temperature data in Shenbei New District of Shenyang during 1971-2008,by using the conventional statistical method,the variation trends of temperature and active accumulated temperature in Shenbei New District under the climate warming environment were analyzed,and the influence of climate warming on the agriculture was discussed.[Result] The annual average temperature,annual average maximum temperature,annual averageminimum temperature and ≥ 0℃,≥ 10℃ active accumulated temperatures which were passed stably in Shenbei New District in recent 38 years all showed the obvious rising *** climate tendency rates were respectively 0.4,0.3,0.1℃/10 a and 79.1,76.7℃·d/10 *** all showed the declining trend in the coldest December,January and the rising trend in other *** rising range of maximum temperature was bigger than that ofminimum temperature,and the rising range in summer was bigger than that in *** analysis result was different from that of many *** the temperatures rose,and the heat resources increased,the agricultural cropping index improved,and the cultivated boundary of mid-late maturity variety moved *** industrialized agriculture developed ***,the risks of drought and flood disasters increased,and the insect pest aggravated.[Conclusion] The research provided the scientific basis for improving the cognizance about the influence of climate warming on the agricultural production and strengthening the strain capacity of local agricultural production adapting the climate variation.

关键词： Shenbei New District Climate warming Agriculture Trend variation china