In this paper,we simulate the track of the cloud s movement based on the principle of the equi-angle projection of all-sky imager(fish-eye lens) and estimate the cloud fraction during its movement.
以全天空数字成像仪的等角投影成像原理为基础,将云型简化为正方体及圆柱体云体,模拟了相同云体在不同空间位置的移动轨迹情况,对其所占面积变化(云量)进行了计算,并对云在移动过程中云体侧面成像情况做了分析研究。
The trends of changes in cloud fraction,precipitation,and special humidity are mostly similar,indicating that there are close relationships among them.
纬向平均的云量、降水和水汽的变化形势大部分相似,存在比较密切的联系。
The diurnal cycle of tropical cloud amount was analyzed by using a 20-year International Satellite Cloud Climatology Project (ISCCP) dataset.
利用国际卫星云气候计划(ISCCP)1984—2003年共20年云量资料,统计分析了热带地区的云量日变化特征,研究结果表明,云量峰值时间和变化幅度在全球的分布都较为均匀,而海陆差异明显。
ISCCP,station observation and MODIS data are the major sources for cloud amount so far.
对ISCCP、常规观测以及MODIS总云量3种目前使用较多的总云量资料进行对比分析,重点考察时间序列较长的ISCCP和常规观测总云量,给出定量对比结果,为使用这3种总云量资料的用户提供参考。
Using the data of sunshine duration and cloud amount,surface vapor pressure,precipitation and visibility from 80 stations across the Anhui Province from year 1955 to 2005,the annual,seasonal and monthly trend and distribution variations of the sunshine duration are analyzed by using linear trend analysis and t-detected.
利用安徽省80站1955~2005年逐日日照时数、云量、水汽压、降水量及合肥市能见度资料,采用t检验、线性趋势分析等统计方法,分析了安徽省日照时数年、季节、月的变化特征以及空间分布特征;同时分析了可能影响日照时数的气象因子的变化特征。
Statistical characteristics of cloud cover as functions of hours,months and seasons,the probability of cloud-free line-of-sight (P_(CFLOS)) as functions of hours and elevations in Hefei and southeast coastal areas of China were obtained by using Total Sky Imager 880.
利用全自动观测仪器Total Sky Imager880统计得到了内陆典型地区合肥和东南沿海地区云量随时、月和季节变化统计特征,以及无云视线概率(P_(CFLOS))随小时和仰角变化的统计特征。
By using the data of global radiation,direct radiation and scatter radiation from 112 stations,and cloud cover from 729 stations in China during 1961 to 2000, the inter-decadal anomaly spatial distribution and change were analyzed.
利用中国122个辐射观测站1961—2000年的逐日地面辐射资料,同期729个气象站的逐日云量资料,分析了总辐射、直接辐射和散射辐射年代际距平分布和变化。
The relationship between cloud cover variation and atmospheric circulation is analyzed with the January-to-December mean cloud cover data of four stations from 1961 to 2000 over the Qilian Mountain area by composite,correlation and spectral analysis methods.
利用祁连山区4个测站1961~2000年1~12月平均总云量资料,采用合成分析、相关分析和功率谱分析等方法,分析了40年来祁连山区云量与大环流变化的关系。
Due to the solar modulation and other factors, the cosmic ray flux has some changes which maybe induce variation of the Earth s climate, such as cloudiness.
进入地球大气中的宇宙线强度发生变化,可能导致气候,比如云量的变化。
Analysis is covered on changes of such essential climatic factors as sunshine and cloudiness and fog and precipitation caused by development of small-sized cities.
以义乌市城市发展为例,研究小城市发展引起日照、云量、雾和降水等气候要素的变化。
In this paper, we analysed multi-temporal and multi-spatial distribution of cloudiness and focused on the diurnal characteristics of cloud and precipitation over the Asia monsoon region for the period from July 2005 to June 2007.
对FY-2C云检测资料的评估结果表明,FY-2C与其它云资料表现较为一致,可以正确反映出亚洲季风区总云量的季节分布特征及演变特征。
The characters of ultraviolet radiation in Nanning city are discussed, its relation with global radiation and cloudage is also analyzed.
文章分析了南宁市紫外线辐射的变化特征及其与太阳总辐射和云量的关系。
Computing cloudage automatically is very important,and cloud detection is the basis of cloudage computation.
云的高精度检测是云量计算的基础,利用晴朗天空下天空呈蓝色、云呈白色的属性,该文提出一种基于最大类间方差的自适应阈值云检测方法,并分别基于蓝红波段比值、差值和归一化差值处理进行试验。
Cloudtop properties include cloudtop pressure, cloudtop temperature and cloud effective emissivity.
云顶性质包括云顶气压、云顶温度和有效云量或有效比辐射率。
The recognition of ground nephogram cloudage based on image processing technology
基于图像处理技术的地基云图云量的识别
The stumbling block is the mechanistic prediction of cloud cover.
麻烦的是对云量的机械预报。
As the saying goes, @Knowledge is power.
俗云：“知识就是力量。”
MICRO-MEASUREMENT OF THE MULTIPLIED MOIRE FRINGES AND THE DETERMINATION OF THE STRAIN DISTRIBUTIONS OF THE DENSE MOIRE FRINGE FIELDS
倍增云纹的显微测量及密集云纹场的应变测算
SPECTROPHOTOMETRIC DETERMINATION OF THE POLYSACCHARIDES FROM POLYSTICTUS VERSICOLOR (L)FR. IN YUNZHI GAN TAI GRA NULES
分光光度法测定云芝肝泰中云芝多糖的含量
Retrieval Method of Path-integrated LWC for Airborne Upward-Looking Microwave Radiometer Using Cloud Model;
机载微波辐射计反演云液水含量的云物理方法
Research on Plant Diversity and Site Quality Evaluation in Yuntai Mountain in Lianyungang
连云港云台山植物多样性及立地质量评价研究
Determination of the minimum ignition energy of dust cloud
GB/T16428-1996粉尘云最小着火能量测定方法
A soft mica having a green hue and a high iron content.
绿磷石一种含铁量很高的绿色软云母
a grid-like instrument for measuring the altitude, direction, and velocity of movement of clouds.
测量云的高度方向和速度的格状仪器。
radar that is able to detect clouds and precipitation.
能够探测云和雨量的雷达。
Clouds return radiant energy to the surface primarily via the atmospheric window.
云主要通过大气窗区向地表辐射能量。
QUANTITATIVE RELATIONS BETWEEN FOCAL PARAMETERS AND MAGNITUDE OF EARTHQUAKES OCCURRED IN YUNNAN PROVINCE
云南地震震源参数与震级的定量关系
Activities of Bay of Bengal Monsoon and Beginning Date of Rain Season in Yunnan
孟加拉湾季风活动与云南5月降雨量
The Improvements of the Measuring Method of the Flare Data Obtained at Yunnan Observatory
云南天文台耀斑数据测量方法的改进
Study on Soil Quality Appraisal in Dolostone Areas of Guiyang Region;
贵阳市白云岩地区土壤质量评价研究
Study on Estimation of the Pinus Yunnanensis Forest Fuel Loading Based on Remote Sensing Images;
云南松林可燃物载量的遥感估测研究