搜索结果: 16-30 共查到“知识库 理学 1999”相关记录56条 . 查询时间(0.113 秒)
Water-Level Changes in Shallow Wells Before and After the 1999 İzmit and Düzce Earthquakes and Comparison with Long-Term Water-Level Observations (1999–2004), NW Turkey
ground-water well-level changes earthquake forecast continental deformation North Anatolian Fault Zone Thrace-Eskiş ehir Fault Zone 1999 İ zmit-Düzce earthquakes
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2009/7/7
It is well known that earthquakes cause hydrological changes, such as drying or flooding of water wells, fluctuations in ground-water levels in wells, changes in water quality, and formation of new sp...
The R/V Meteor Cruise Leg M44/1 in February 1999 in the Sea of Marmara: The First Multibeam Bathymetric Study and Analysis of Methane in Sediment and Water Columns
Sea floor morphology methane emanations active faulting Tekirdağ ridge Ç ı narcı k basin North Anatolian Fault Zone Sea of Marmara
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2009/7/7
During the first leg of R/V Meteor cruise M44 in February 1999, geoscientific studies in two areas in the Sea of Marmara were carried out. The studies mainly focused on cool fluid and gas (mainly met...
1999年11月14日辽宁暴雪分析
高空锋区 偏南急流 相互作用 大至暴雪天气预报
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2009/7/2
从高低空天气系统特征及相互作用、卫星云图特征等方面分析 1999年 11月 14日辽宁暴雪天气的成因 ,从而为辽宁大至暴雪天气预报提供可视的预报指标。
1999年3月辽宁天气形势分析
天气过程的分析 高空天气图 500hPa 西风环流指数
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2009/7/2
对1999 年3 月辽宁气温偏低、雨雪过程频繁的环流形势及天气过程进行了分析，并总结了初春低温多雨的大气环流背景和西风环流指数特点。
1999年与2003年我国北方地区夏季气温异常原因初探
气温异常 年代际特征 大气环流
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2009/7/2
分析了1999年与2003年我国北方地区夏季气温的变化特点和同期大气环流主要特征。结果表明:中国夏季气温变化有明显的年代际特征,这一特征与亚洲上空大气环流的年代际变化紧密相关,表明我国北方地区夏季气温异常一个很重要的原因或许是缘于气候年代际变化。2003年夏季中高纬环流形势呈两槽两脊的配置,与近十几年气候态分布刚好相反,因而从气候年代际变化的特征来看,2003年为预示年代际气候转型的征兆。
针对 1999年夏季辽宁出现少雨干旱气候异常现象 ,通过对其进行气候背景及物理因子分析 ,总结出导致夏旱的物理成因 ,进而提高灾害性天气的预测能力。
1999年8月辽宁大暴雨天气过程预报分析
暴雨过程分析 西风带 副热带 热带系统
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2009/6/26
利用常规高空和地面观测资料 ,对 1 999年汛期辽宁出现的一次强降水过程进行综合分析研究 ,进一步证明了热带、副热带和西风带天气系统的合理配置是辽宁出现大暴雨过程的一个较典型的环流形势。
Temporal Variations in Bio-Optical Properties of Four North Estonian Lakes in 1999-2000
limnology lake optics optically active substances underwater light field attenuation coefficient spectra phytoplankton
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2009/6/9
To investigate the seasonal variation of bio-optical parameters in lakes of different type regular measurement campaigns were carried out in four North Estonian lakes in 1999–2000. Some parameters (re...
The Investigation of Nova-like Variable MV Lyr during the 1999--2001 Years
Cataclysmic variables “anti-dwarf novae”
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2009/5/19
A peculiar nova-like MV Lyr was investigated. The CCDobservations
ofMVLyr were continued in Crimea during the outbursts and
quiescent states. Last year its behavior became non-typical for “anti-dwar...
1999年楚科奇海台及其周边海域中层与深层水增暖
楚科奇海台 北冰洋 中层水增暖 深层水增暖
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2009/5/19
根据我国1999年北极科学考察期间的数据, 研究了楚科奇海台及其邻近海域的温度和盐度分布特征. 观测结果表明, 1999年在连绵600多公里的海域中都发现温度超过0.5℃的现象, 测得的最高温度为0.85℃, 表明北冰洋中层水仍然保持增暖状态. 文中指出了两个重要现象. 第一, 中层水增暖现象存在区域差别, 楚科奇海台内部中层水与陆坡区相比温度高、厚度大、深度浅. 这种不均匀性是非常重要的, 意味...
Recovery from acidification of lakes in Finland, Norway and Sweden 1990–1999
Nordic countries sulphur deposition
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2009/3/23
Sulphate deposition has decreased by about 60% in the Nordic countries since the early 1980s. Nitrogen deposition has been roughly constant during the past 20 years, with only a minor decrease in the ...
THE ANALYSIS OF TOTAL SOLAR ECLIPSE OBSERVATIONS ON AUGUST 11th, 1999 IN KIKINDA
TOTAL SOLAR ECLIPSE KIKINDA
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2009/3/16
Because of poor meteorological conditions, the obtained observational
material has not an even distribution in time. Therefore a special method
was devised for treating this material. Using this met...
Simulation of soil moisture and evapotranspiration in a soil profile during the 1999 MAP-Riviera Campaign
MAP-Riviera Project soil moisture evapotranspiration
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2009/3/16
Detailed plot-scale observations of basic hydrometeorological variables represent valuable data for assessing the quality of the soil moisture module and evapotranspiration scheme in hydrological mode...
CCD ASTROMETRIC OBSERVATIONS OF MINOR PLANETS AT THE BELGRADE OBSERVATORY DURING 1999 (II)
astrometric positions minor planets SBIG ST-8 camera
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2009/3/13
76 precise astrometric positions of six observed minor planets (two
NEO among them) are calculated. The SBIG ST-8 camera attached to Askania
astrograph of Belgrade Observatory was used in the observ...
The impact of model grid zooming on tracer transport in the 1999/2000 Arctic polar vortex
model grid zooming tracer transport Arctic polar vortex
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2009/3/11
We have used a 3D chemistry transport model to evaluate the transport of HF and CH4 in the stratosphere during the Arctic winter of 1999/2000. Several model experiments were carried out with the use o...