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遥感资料

遥感资料的相关文献在1979年到2021年内共计106篇,主要集中在大气科学(气象学)、自动化技术、计算机技术、海洋学 等领域,其中期刊论文84篇、会议论文18篇、专利文献25037篇;相关期刊73种,包括全球科技经济瞭望、今日科苑、安徽地质等; 相关会议16种,包括第32届中国气象学会年会、中国海洋湖沼学会水文气象分会、潮汐及海平面专委会、计算海洋物理专委会;山东(暨青岛市)海洋湖沼学会、宁夏气象学会2013年联合学术讨论会、中国地球物理学会第二十七届年会等;遥感资料的相关文献由233位作者贡献,包括张树誉、严德天、冯芊等。

遥感资料—发文量

期刊论文>

论文:84 占比:0.33%

会议论文>

论文:18 占比:0.07%

专利文献>

论文:25037 占比:99.59%

总计:25139篇

遥感资料—发文趋势图

遥感资料

-研究学者

  • 张树誉
  • 严德天
  • 冯芊
  • 姚望玲
  • 孙乐川
  • 张晓明
  • 徐昆
  • 徐笑丰
  • 杜培林
  • 梁月明
  • 期刊论文
  • 会议论文
  • 专利文献

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    • 邸有鹏; 王全勇; 孙乐川
    • 摘要: 海南岛东岸邦塘湾近年来海岸侵蚀日益严重,本文基于遥感资料对2000-2015年间邦塘湾海岸线的演变情况进行分析,计算了不同岸段在各个时期的海岸侵蚀速率,局部地区的侵蚀速率可达18.65m/a,并对造成海岸侵蚀的原因进行了分析,为后期海岸恢复提供参考.
    • 邸有鹏; 孙乐川; 王全勇
    • 摘要: 通过现场勘察发现海南岛博鳌湾海岸侵蚀现象较为严重,同时本文基于遥感资料对2000年和2015年博鳌湾岸线的演变情况进行分析,计算了不同岸段在各个时期的海岸侵蚀速率,该区域年均侵蚀速率为3.23m/a,且万泉河口位置是侵蚀最为强烈的地方,最大侵蚀速率可达12.4m/a,2000年~2015年15间向岸最大迁移超过180m,表明该区域的海岸侵蚀现象较为严重.对造成海岸侵蚀的原因进行了分析,以供后期海岸恢复提供参考.
    • 陈建; 姜祝辉; 宿兴涛; 闫恒乾; 宋博; 安玉柱; 路凯程
    • 摘要: To reconstruct 3-D ocean temperature fields using both satellite measurements and in situ observations, the prescribed statistical information estimation in the optimal interpolation (OI)was optimized and the impact mechanisms of these two types of data were analysed.In the OI,two comparative schemes were implemented, with the background field set to a climatology(static scheme)and a synthetic field from satellite surface data(dy-namic scheme),respectively.Before the OI,one a posterior diagnosis iterative method was performed to optimize the background error and observation error covariances.After the OI,the two schemes were compared using some diagnostic errors in the observational space and indices on the model grids.The main conclusions include:(1)The analysis error is smaller for the dynamic scheme than for the static one,in which the reduced absolute quantity is determined by the differences in their observation errors (i.e.,noises),and the reduced relative extent is deter-mined by the differences in their background errors(i.e.,signals).(2)The background term is more important in the high and middle latitudes,and equivalent to the observation term along the equator,which is determined by the qusi-zonally-orientated distributed covariance scales.(3)The dynamic fields have higher spectral energy related to the temperature mesoscale signal features than the static fields by 1-3 orders of magnitude overall,but roughly the same in the tropics.(4)Satellite measurements reduces the total error and increase the effective resolution of the analysis field by resolving the mesoscale features that in situ observations cannot resolve well.%针对遥感资料与实况观测融合重构三维海温场的问题,改进了最优插值中的先验统计信息估计,并研究了背景场和观测项的各自影响机制.在最优插值中,将背景场分别取为平均气候场(静态方案)和遥感合成场(动态方案);在最优融合前,用后验诊断方法迭代优化了背景误差和观测误差协方差;融合完成后,用观测空间诊断误差和模式格点指标对比分析两种方案.主要结论:(1)动态方案相对于静态方案分析误差减小的绝对量值由二者的观测误差之差决定、减小的相对程度由二者的背景误差之比决定;(2)背景场的调整作用在中高纬占优势、在赤道海域与观测项调整作用相当,是由协方差相关尺度的准纬向分布特征决定的;(3)动态分析场的中尺度信号谱能量整体比静态分析场高1~3个量级,但在热带海域相当;(4)遥感资料通过分辨实况观测所无法分辨出来的海温中尺度特征,达到减小误差、提高有效分辨率的效果.
    • 王国杰; 娄丹; 谭龚; 任冉
    • 摘要: 利用农业气象站观测资料对长江中下游地区1988-2010年遥感土壤湿度进行了验证,并与NCEP和ERA-Interim土壤湿度做了对比分析.研究表明,ECV遥感土壤湿度冬季平均土壤湿度最高,春季和秋季次之,夏季平均土壤湿度最低;这种季节性干湿变化与农业气象站观测资料一致.但是,NCEP和ERA-Interim土壤湿度再分析资料,则夏季平均土壤湿度高,春季和秋季次之,而冬季平均土壤湿度最低;这种季节性变化与ECV遥感土壤湿度和农业气象站观测资料呈反位相.就年际变化而言,ECV遥感土壤湿度与农业气象站观测资料和两套再分析资料均有较高的一致性,并在春季和秋季最高,尤其是在长江以北地区和长江以南洞庭湖、鄱阳湖两大湖区,相关系数达到0.7~0.9;而夏季一致性最低,相关系数仅为0.4左右.在研究时段,ECV土壤湿度在冬季明显增加,在夏季则有明显下降趋势.%Soil moisture is a key variable in the terrestrial water cycle,and plays a key role in the exchanges of water and energy in the land-atmosphere interface.In this study,the ECV (Essential Climate Variable) soil moisture product derived from multiple satellites during 1988-2010 in the middle and lower researches of the Yangtze River basin is validated with agrometeorological observations,then further compared with the soil moisture from NCEP and ERA-Interim reanalysis datasets.The ECV satellite soil moisture appears to be highest in winter and lowest in summer,which agrees well with the agrometeorological observations.However,the datasets of both the NCEP and ERA-Interim reanalysis appear to be lowest in winter and highest in summer,which are clearly opposite to the ECV data and agrometeorological observations.As for the interannual variations,the ECV data are reasonably consistent with the agrometeorological observations and both groups of reanalysis data,especially in spring and autumn.This is particularly true in the area north of the Yangtze River and the surrounding areas of Dongting Lake and Poyang Lake,where their correlation coefficients reach 0.7~0.9.During the period of 1988-2010,the ECV satellite soil moisture appears to increase in winter,yet shows a declining trend in summer.
    • 摘要: 据千华网报道,自1961年美国成功发射第一颗极轨气象卫星以来,经过五十多年的发展,卫星遥感产业逐渐向民用化、市场化、开放式、融合式的方向发展,卫星遥感影像数据、遥感资料更已成为地质、环保、规划、农业等领域发展不可或缺的工具和资料.近年来,随着国家政策的逐步开放,国产小卫星商用进程加快,特别是在北京中景视图科技有限公司为首的卫星遥感影像服务公司大力推动下,卫星遥感影像数据的商用化程度和应用领域逐步拓展开来.
    • 孟宝平; 陈思宇; 崔霞; 冯琦胜; 梁天刚
    • 摘要: 基于MODIS、Landsat-8OLI和HJ-1A/1B CCD卫星遥感资料,结合2013-2014年甘南州夏河县桑科草原试验区野外实测数据,建立了高寒草地地上生物量遥感反演模型,筛选出基于不同遥感资料植被指数的生物量最优反演模型,比较分析了生物量最优模型的空间效应.同时,分析了2000-2013年基于MODIS植被指数估算的试验区产草量的年际变化特征.结果表明,草地生物量最优反演模型为基于Landsat-8OLI NDVI数据的对数模型(y =727.541nx1 +495.23,R2=0.772,RMSE=31.333 kg DM·hm-2);在30和250 m空间分辨率下,基于MODIS NDVI及EVI、Landsat-8OLI NDVI和HJ-1A/1B CCD NDVI最优模型估算的生物量均高于实测生物量,其中Landsat-8OLI NDVI数据估算的草地生物量与实测生物量值最接近;2000-2013年试验区草地总生物量整体上具有显著增加的趋势(R2 =0.590 7,P<0.001),平均增加速率达50.57 kg DM·hm-2·a-1.
    • 摘要: 杨衍忠同志是我国科技工作者的优秀代表,为我国地矿事业发展无私奉献了一生。退休前,他一心一意扑在工作上,38年一直坚持在野外从事地质找矿工作,先后承担多个国家级、省部级重大找矿项目,他的足迹遍及赣南的山山水水,搜集了大量地质矿产、物探遥感资料,为发展祖国地矿事业作出重要贡献。退休后,他在病魔缠身的情况下,依旧执着坚守,继续发挥余热,20年如一日,以每年30万字的编写速度与时间和生命"赛跑",编写了近600万字的《江西南部地质、物化探找矿文稿》并无偿捐献给国家,为党和人民留下了宝贵的物质财富和精神财富。
    • 冯平; 魏兆珍; 李建柱
    • 摘要: 以海河流域为研究对象,根据1956-2005年的年降雨量和水面蒸发资料、DEM、土地利用、土壤和植被覆盖遥感图,提取了反映下垫面条件和气候特征的物理因子,并以此作为分区指标,以子流域为划分单元,依据下垫面条件和气候因子的相似性和差异性,采用地理信息系统和多元统计分析的方法,将海河流域内1 399个子流域划分7类水文类型分区(HTR),并分析了各水文类型分区的空间分布特征及产汇流机制.其中HTR1、HTR2和HTR4位于平原地区,土地利用类型以耕地为主,其他水文类型分区位于山区和丘陵区.HTR1耕地面积比例最大;HTR2土壤透水性最差,易产生超渗地表径流;HTR3土壤透水性最好,易产生地下径流和壤中流;HTR4年蒸发量较大,年降雨量较小,气候最干旱;HTR5和HTR6土地利用类型分别以草地和林地为主;HTR7年降雨量较大,年蒸发量较小,气候最湿润.分区成果明确地反映了流域的下垫面情况及气候条件,分区结果与流域的地形地貌非常吻合,也反映了流域水文特征的分布规律.通过分析水文类型分区内典型流域的下垫面和气候情况以及水文特征,阐述了分区结果的准确性及合理性,为海河流域水文特征的研究及水资源评价提供了依据.%Taking the Haihe River Basin as the study area,based on the annual rainfall and water surface evaporation data of 1956-2005,digital elevation model and the remote sensing data of land use,soil and vegetation cover,the physical factors which reflect underlying surface conditions and climate characteristics were extracted in geographic information system(GIS),and then the underlying surface conditions and climate characteristics were taken as the regionalization indexes.Using GIS and multivariate statistical analyses,1399 sub-basins of the Haihe River Basin were assigned to 7 hydrologic type regions (HTR) according to their similarities and differences of underlying surface conditions and climate factors.We also analyzed the spatial distribution and hydrological characteristics of each region.HTR1,HTR2 and HTR4 are located in plain area where the main land use type is cultivated land,and other HTRs are located in mountainous and hilly regions.The area proportion of agricultural land in HTR1 is the largest; the soil permeability of HTR2 is the worst and surface runoff over infiltration is easily generated; the soil permeability of HTR3 is the best,and subsurface runoff and interflow are more expected to happen ; HTR4 has lager annual evaporation,smaller annual rainfall,and the driest climate; the main land use type of HTR5 and HTR6 is grassland and forestland respectively; HTR7 has smaller annual evaporation,larger annual rainfall,and the wettest climate.The result of hydrologic type regions delineation is very anastomotic with the landforms of watershed,explicitly reflects the underlying surface and climate factors,and reflects the distribution regularities of basin' s hydrologic characteristics.Then the result was verified to be accurate and rational by analyzing the underlying surface and climate factors of typical watersheds in hydrologic type regions,and it could provide fundamental basis for water resources assessment and study of hydrologic characteristics in the Haihe River Basin.
    • 田志光; 王艳萍
    • 摘要: 利用遥感站3a来的海表温度资料,编写了一系列的数据处理、分析和预报程序,得到了东海海区海表温度的年变化规律,并利用周期外推预报法实现东海辖区海表温度的预报.为进一步研究东海辖区海水性质及海水运动的分布和变化打下了基础.
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