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22篇 您的检索式:关键字=MTSAT
    题名 作者 年代 出处 被引量
1Detection of nighttime sea fog/stratus over the Huang-hai Sea using MTSAT-1R IR data显示文摘A dual channel difference (DCD) method is applied to detect nighttime sea fog/stratus over the Huanghai Sea using the infrared (IR) data of shortwave (3.5–4.0 μm) and longwave (10.3–11.3 μm) channels from the Multi-functional Transport Satellite (MTSAT)-1R, i.e., shortwave minus longwave brightness temperature difference (SLTD). Twenty-four sea fog events over the Huanghai Sea during March to July of 2006 and 2007 are chosen to determine a suitable value of SLTD for nighttime sea fog/stratus detection, and it is found that the value of –5.5––2.5°C can be taken as a criterion. Two case examples of sea fog events are especially demonstrated in detail utilizing the criterion, and the results show that the derived sea fog/stratus coverage is quite reasonable. This coverage information is very helpful to analyze the formation and evolution of sea fog/stratus during night and can provide sea fog researchers with observational evidences for model results verification. However, more efforts are needed to further obtain vertical extent information of sea fog/stratus and attempt to discriminate between sea fog and stratus.GAO Shanhong WU Wei ZHU Leilei FU Gang HUANG Bin 2009Acta Oceanologica Sinica2009,28,2:36
2基于MTSAT卫星遥感监测的浙江省及周边海区大雾分布特征显示文摘利用日本静止气象卫星MTSAT逐时资料,综合地面气象观测数据,对浙江省及其周边海区陆地和海上2008—2012年的大雾进行了专题信息提取,并给出了浙江省陆域、周边海域0.05°×0.05°网格点的小时尺度的遥感大雾产品,结果表明:(1)基于MTSAT卫星观测数据,采用分级判识太阳高度角阈值和归一化大雾指数的方法,构建的浙江及其周边地区陆地和海上遥感大雾监测模型,大雾判识精度总体超过75%,基本满足使用需求。(2)浙江省陆域近5年大雾年平均累计为411.7 h,约占全年的4.7%,基本呈南多北少,山区多平原少的格局,其中浙江南部高山区、舟山和温州部分海岛及西部山区为大雾多发区,且大雾季节分布为冬秋季较多,春夏季较少,22时至09时是浙江省陆域大雾的高发时段,10时以后大雾逐渐消散,至后半夜、凌晨前后,大雾频次逐渐增多。(3)研究区海雾主要发生在大陆近海,呈现由近海向外海减少的空间格局,东海海域年大雾累计为311.7 h,以东海西南部地区大雾出现最多,浙江省沿海大雾的高发区位于温州海域及钱塘江口。研究区海域大雾具有明显的季节特征,主要表现为春季较多,夏季次之,秋冬季较少的分布格局,且海上主要受平流雾影响,大雾不易消散,持续时间较长。从各海区大雾发生频次从高到低依次为:东海东南部、台湾以东洋面、东海中东部、黄海西南部、东海中西部、台湾海峡、东海西北部、黄海东南部、东海西南部和东海东北部。何月 张小伟 蔡菊珍 杜惠良 胡波 高大伟 2015气象学报2015,73,1:13
3利用静止气象卫星监测浙江海上大雾显示文摘卫星遥感是监测大雾的重要手段,利用静止气象卫星监测海上大雾,可以得到时间分辨率比极轨卫星更高、空间覆盖比地面观测更连续的大雾产品。采用分级判识太阳高度角阈值和归一化大雾指数(NDFI)的方法,反演了2008年至今浙江海雾的逐时分布,并将静止卫星(MTSAT)遥感大雾监测结果与近5年地面大雾观测和2013年春季能见度自动观测记录作对比,结果显示遥感反演的总体精度分别为68.4%和69.6%,且空间分布上与地面观测相吻合。表明该方法可突出雾与其他地物的差异,且判识方法简单、实用性强、准确率较高;实时监测浙江海上大雾是可行的,具有良好的业务应用前景。不同时段正确率的验证结果显示,该方法更适用于海雾频发的冬春季以及白天的监测。何月 张小伟 杜惠良 胡波 高大伟 2015遥感技术与应用2015,30,3:8
4结合极轨卫星MODIS和静止气象卫星MTSAT估算黑河流域地表太阳辐射显示文摘基于MODIS和MTSAT卫星数据发展了一种新的地表入射太阳辐射估算算法。算法以复杂辐射传输模拟(MODTRAN和LibRadtran)建立的查找表为核心,通过结合MODIS的大气及陆地产品和MTSAT可见光通道的数据获取时空连续的区域太阳辐射资料。新查找表算法的运用可以从理论上保障地表太阳辐射的估算精度;而极轨卫星MODIS和静止气象卫星MTSAT的结合可以充分发挥二者的优点,得到高时间分辨率和高空间分辨率的地表太阳辐射产品。利用黑河综合遥感联合试验3个站的太阳辐射观测数据评价算法的精度,结果表明:算法可以给出较高的计算精度,而计算的太阳辐射资料可以作为地表过程模型和生态模型中相关地表辐射的输入量。孙洋 黄广辉 郝晓华 2011遥感技术与应用2011,26,6:7
5基于MTSAT多光谱卫星图像监测全天时我国华东地区的梅雨期降水显示文摘本文应用单位特征空间归类方法进行了MTSAT多光谱卫星图像降水强度场的反演研究.该方法将MTSAT多光谱卫星测值与2007年华东地区梅雨季节高密度地面站实测小时降水率结合起来,进行协同分析,较好的确定了各降水概率和降水强度等级在不同的二维光谱特征空间的分布特点.在此基础上,分别建立了相应的不同光谱组合的降水概率和降水强度类属矩阵用于全天时的连续降水监测:白天利用IR1(10.3~11.3μm)I、R3(6.5~7.0μm)、VIS(0.55~0.90μm);夜间利用IR1、IR3、IR4(3.5~4.0μm)以及亮温差(BTD)资料,即IR24(IR4-IR2)来构建降水概率和强度类属矩阵.对比实测降水资料和反演结果,发现20%的降水概率可较好的划分降水区与非降水区;降水强度等级的分析也基本与实况有较好的匹配.但是,卫星进行的是每小时一次的瞬时观测,雨量计是一小时雨量的累计。这两种观测方式的不同是产生比较误差的重要原因.王晨曦 郁凡 张成伟 2010南京大学学报(自然科学版)2010,46,3:6
6Fog Detection over China's Adjacent Sea Area by using the MTSAT Geostationary Satellite Data显示文摘A fog threshold method for the detection of sea fog from Multi-function Transport Satellite (MTSAT1R) infrared (IR) channel data is presented.This method uses principle component analysis (PCA),texture analysis,and threshold detection to extract sea fog information.A heavy sea fog episode that occurred over China's adjacent sea area during 7 8 April 2008 was detected,indicating that the fog threshold method can effectively detect sea fog areas nearly 24 hours a day.MTSAT-1R data from March 2006,June 2007,and April 2008 were processed using the fog threshold method,and sea fog coverage information was compared with the meteorological observation report data from ships.The hit rate,miss rate,and false alarm rate of sea fog detection were 66.1%,27.3%,and 33.9%,respectively.The results show that the fog threshold method can detect the formation,evolution,and dissipation of sea fog events over period of time and that the method has superior temporal and spatial resolution relative to conventional ship observations.In addition,through MTSAT-1R data processing and a statistical analysis of sea fog coverage information for the period from 2006 to 2009,the monthly mean sea fog day frequency,spatial distribution and seasonal variation characteristics of sea fog over China's adjacent sea area were obtained.LI Jun 1,2,HAN Zhi-Gang 3,CHEN Hong-Bin 1,ZHAO Zeng-Liang 3,and WU Hong-Yi 4 1 Laboratory for Middle Atmosphere and Global Environment Observation (LAGEO),Institute of Atmospheric Physics,Chinese Academy of Sciences,Beijing 100029,China 2 Graduate University of Chinese Academy of Sciences,Beijing 100049,China 3 Beijing Institute of Applied Meteorology,Beijing 100029,China 4 Beijing Meteorological Bureau,Beijing 100089,China 2012Atmospheric and Oceanic Science Letters2012,5,2:6
7基于ARGO资料的MTSAT海温产品误差分析显示文摘利用全球海洋观测网计划ARGO浮标的表层海温测量值分析了MTSAT卫星的海温反演误差。结果显示,平均绝对误差为0.73℃,均方根误差为0.885℃,满足应用需要;海温反演异常点多分布在30°N以北的高纬区域。为了确保海温产品数据的可靠性,需要通过数据误差控制技术来检测和控制海表温度反演的异常值,影像边缘和高纬地区的区域数据应谨慎使用。周为峰 张运刚 2008海洋湖沼通报2008,,4:5
8基于MTSAT卫星的我国渔业作业海区渔海况速报显示文摘卫星遥感能及时准确地掌握包括海表温度(SST)在内的渔场环境,是现代海洋渔业发展的重要技术支撑。利用静止气象卫星来观测海表温度有许多优点,目前我国静止气象卫星的应用研究主要集中在气象领域,而对渔业应用领域的研究和关注较少。针对MTSAT卫星进行海表温度反演,利用卫星所获取的影像资料提取我国主要渔业作业海区的海表温度资料,在此基础上推演底层海温。运行结果表明利用MTSAT计算的海表温度能反映海洋基本的温度场分布状况与暖寒流系的强弱产生流隔区位置情况,可以为我国海洋渔业的发展提供有效的技术支持和信息服务。周为峰 崔雪森 樊伟 沈建华 张晶 杨胜龙 2008遥感信息2008,30,4:4
9日本新一代多功能卫星MTSAT显示文摘日本新一代具有气象探测功能的多功能运输卫星(MTSAT)-1R于2005年2月26日由H-2A火箭在日本南部距东京1000千米的鹿儿岛县种子岛航天发射中心发射。2003年11月,从这里发射的H-2A火箭未能将两颗间谍卫星送入轨道,使日本航天业遭到重创。这次卫星发射的成功是日本航天业向复苏迈出的重要一步,因此引起了国际社会和日本国内的广泛关注。张鹏锐 王荣华 2005中国航天2005,,4:3
10用于航班的卫星通信系统显示文摘目前,被国际民航组织(ICAO)认可能够为航班提供前舱安全通信的卫星通信系统有国际海事卫星(Inmarsat)、美国铱星(Iridium)和日本多用途运输卫星(MTSAT)系统,其中MTSAT只能提供区域卫星服务。由于目前机载卫星终端与通信卫星的配套服务价格昂贵,所以卫星通信在航班上的应用尚未普及。杭添仁 2015国际航空2015,0,3:1
11Preliminary validation of GLASS-DSSR products using surface measurements collected in arid and semi-arid regions of China显示文摘Global Land Surface Satellite-downward surface shortwave radiation(GLASSDSSR)products have been routinely produced from 20082010 based on an improved look-up table algorithm,which explicitly accounts for the variations of cloud optical depth,water vapor content,and elevation.In this study,we validated and assessed the accuracy of these products in arid and semiarid regions of China.Toward this goal,observation data-sets provided by the Arid and Semiarid Region Collaborative Observation Project as well as four other metrological sites were collected,chosen,and preprocessed for the final validation.Due to the possible effect of spatial collocation and the strong adjacency pixel effect in instantaneous products,we used a more sophisticated validating scheme in order to reduce the impacts from these effects as much as possible.Evidences indicate that the GLASS-DSSR products are considerably accurate over most parts of arid and semiarid regions in China,but in complex terrain areas the products might need further refinements.The R2 at all sites(except Naqu)was larger than 0.8 with a root mean square error(RMSE)range of about in 90130 W/m2.Linear regression analyses suggest that GLASS-DSSR products tend to overestimate DSSR in the interval of low surface-measured values and symmetrically underestimate DSSR in the interval of high values.This systematic error may result from inappropriate assumptions about clouds and aerosol loadings over the regions in the operational algorithm.Guanghui Huang Weizhen Wang Xiaotong Zhang Shunlin Liang Shaomin Liu Tianbao Zhao Jinming Feng Zhuguo Ma 2013International Journal of Digital Earth2013,6,S01:1
12SST diurnal warming in the China seas and northwestern Pacific Ocean using MTSAT satellite observations显示文摘Hourly sea surface temperature(SST) observations from the geostationary satellite are increasingly used in studies of the diurnal warming of the surface oceans. The aim of this study is to derive the spatial and temporal distribution of diurnal warming in the China seas and northwestern Pacific Ocean from Multi-functional Transport Satellite(MTSAT) SST. The MTSAT SST is validated against drifting buoy measurements firstly. It shows mean biases is about –0.2°C and standard deviation is about 0.6°C comparable to other satellite SST accuracy. The results show that the tropics, mid-latitudes controlled by subtropical high and marginal seas are frequently affected by large diurnal warming. The Kuroshio and its extension regions are smaller compared with the surrounding regions. A clear seasonal signal, peaking at spring and summer can be seen from the long time series of diurnal warming in the domain in average. It may due to large insolation and low wind speed in spring and summer, while the winter being the opposite. Surface wind speed modulates the amplitude of the diurnal cycle by influencing the surface heat flux and by determining the momentum flux. For the shallow marginal seas, such as the East China Sea, turbidity would be another important factor promoting diurnal warming. It suggests the need for the diurnal variation to be considered in SST measurement, air-sea flux estimation and multiple sensors SST blending.TU Qianguang PAN Delu HAO Zengzhou YAN Yunwei 2016Acta Oceanologica Sinica2016,35,12:1
13日本MTSAT卫星云图接收处理系统显示文摘卫星云图接收在气象天气预报中发挥了重要作用,该文详细介绍了日本MTSAT卫星云图接收处理系统工作原理及常见故障,结合实践经验,对每一种故障现象进行分析,提出解决方案。朱盛文 2010电脑知识与技术(过刊)2010,16,9X:1
14日本MTSAT多功能气象观测卫星显示文摘当地时间2006年2月18日15时27分(北京时间14时27分),日本H2A火箭搭载多功能卫星“MTSAT-2”从南部的鹿儿岛县种子岛宇宙中心升空。王克(整编) 2006国外卫星动态2006,,3:1
15Evaluation and fusion of SST data from MTSAT and TMI in East China Sea, Yellow Sea and Bohai Sea in 2008显示文摘Two typical satellite sea surface temperature (SST) datasets, from the Multi-functional Transport Satellite (MTSAT) and Tropical Rainfall Measuring Mission Microwave Imager (TMI), were evaluated for the East China Sea, Yellow Sea, and Bohai Sea throughout 2008. Most monthly-mean availabilities of MTSAT are higher than those of TMI, whereas the seasonal variation of the latter is less than that of the former. The analysis on the one-year data shows that the annual mean availability of MTSAT (61%) is greater than that of TMI (56%). This is mainly because MTSAT is a geostationary satellite, which achieves longer observation than the sun-synchronous TMI. The daily availability of TMI (28%-75%) is more constant than that of MTSAT (9%-93%). The signal of infrared sensors on MTSAT is easily disturbed on cloudy days. In contrast, the TMI microwave sensor can obtain information through clouds. Based on in-situ SSTs, the SST accuracy of TMI is superior to that of MTSAT. In 2008, the root mean square (RMS) error of TMI and MTSAT were 0.77 K and 0.84 K, respectively. The annual mean biases were 0.14 K (TMI) and -0.31 K (MTSAT). To attain a high availability of SSTs, we propose a fusion method to merge both SSTs. The annual mean availability of fusion SSTs increases 17% compared to MTSAT. In addition, the availabilities of the fusion SSTs become more constant. The annual mean RMS and bias of fusion SSTs (0.78 K and -0.06 K, respectively) are better than those of MTSAT (0.84 K and -0.31 K).伍玉梅 申辉 崔雪森 杨胜龙 樊伟 2012Chinese Journal of Oceanology and Limnology2012,30,4:1
16日本新一代静止气象卫星MTSAT资料的接收处理显示文摘叙述了日本新一代静止气象卫星MTSAT的变化及其播发的HiRID和LRIT资料。徐建平 1999气象1999,25,3:0
17日本多功能运输卫星及GPS增强系统显示文摘为适应21世纪航空业发展的需求,日本制定了庞大的计划,推进国际民航组织提出的通信导航监视/空中交通管理系统,即新航行系统。本文介绍日本运输省的多功能运输卫星计划以及基于MTSAT的增强系统。虽然首颗MT-SAT卫星1999年11月15日发射发放,但这项计划不会停止。曹显祥 陈光仁 2000卫星应用2000,8,2:0
18基于MTSAT卫星数据的云掩膜阈值算法显示文摘使用ABI Cloud Mask算法,结合多种基础的表数据,对MTSAT-1R卫星图像进行了云掩膜分类。将卫星图像中的像素成功分为了4类:'晴空''似晴空''似云''云'。实验结果表明,本掩膜计算方便,达到了进一步计算下一步数据的要求。鞠未了 韩雷 2012电子设计工程2012,20,24:0
19日本计划2004年重发MTSAT卫星显示文摘日本计划于2004年年内重新发射多功能运输卫星—MTSAT (Multi-functional Transport SATellite),为其下一代航空安全系统的建立作准备。金玉兰 2004电信技术研究2004,,3:0
202005亚太地区通信卫星发射前瞻显示文摘2004年,全球各卫星公司及机构共发射了16颗商用同步通信卫星,其中有5颗卫星在亚太地区上空定点运行。在这5颗卫星中,除了日本Superbird6(158°E)卫星因燃料箱出现故障两未能投入运营外,日本移动广播卫星MBSat1(144°E)、中国香港Apstar5/Telstar18(138°E)、俄罗斯ExpressAM11(96.5°E)和印度教育卫星Edusat(74°E)都已投入商业服务。与2003年亚太地区发射了10颗商用同步通信卫星的情况相比,2004年无疑地是最近几年来亚太地区发射商用同步通信卫星最少的一年。不过,2005年亚太地区这种情况将有望改变。谢丰奕 2005卫星电视与宽带多媒体2005,,3:0
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