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高职教育是GIS人才培养的重要组成部分。本文通过介绍职教GIS专业的建设,探索GIS实践教学与实践基地建设模式、方法及对人才培养的影响。 相似文献
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基于CiteSpace的我国GIS专业教学期刊可视化分析 总被引:1,自引:0,他引:1
以2000~2016年CNKI收录的452篇GIS专业教学论文为研究对象,利用文献计量法、共现分析法等,借助CiteSpace软件绘制知识图谱,对我国GIS专业建设的研究机构、核心作者、研究热点等问题进行可视化分析。结果表明,17 a来我国GIS专业教学研究从呈现快速增长到稳定发展的趋势。GIS专业教育研究领域拥有一大批经验丰富、理论水平高的科研人员,推动了我国GIS专业教育研究领域的发展。我国GIS专业研究热点和前沿主要集中于GIS专业、教学改革、人才培养、课程设置、实践教学、教学模式等方面,其中GIS专业课程设置的研究具有快速发展的趋势。 相似文献
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随着信息化技术与应用的发展,众多行业部门提出了地理信息系统高级专业复合型人才的需求。依托信息科学支撑开展GIS特色专业教学与建设成为主流。本文从优化专业课程体系结构、改革课程教学内容和方法,以及借力实践基地建设建立实践教学规范等方面,探索在信息技术平台的基础上进行GIS专业特色建设,培养既具有扎实的本专业基础知识、实践能力和创新意识,又具有一定的信息通信专业知识的地理信息系统专业人才的实践方法。研究成果具有较高的推广应用价值。 相似文献
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地理信息系统(GIS)作为实践应用性很强的空间信息处理技术,高校专业教学课程体系设置中与之相关的课程开设较繁杂,内容多有交叉重复,为了完善GIS技术类课程教学体系结构,提高GIS技术人才培养质量,针对GIS技术的知识结构特点,本文在分析GIS技术的知识结构层次基础上,对GIS技术类课程进行了分类和整合,在教学实践中给出了一个较为合理的课程体系规划设计. 相似文献
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《International Journal of Digital Earth》2013,6(1):80-87
Abstract Cultures throughout the world are associating with the rivers. People depend upon the rivers and their tributaries for food, water, transport, and many other aspects of their daily lives. Unfortunately, human beings have not calculated the accurate lengths for the great rivers even today. The lengths of the rivers are very different in popular textbooks, magazines, atlases and encyclopedias, etc. To accurately determine the lengths of the principal rivers of the world, the combination of satellite image analysis and field investigations to the source regions is proposed in this paper. The lengths of the Nile, Amazon, Yangtze, Mississippi, Yellow, Ob, Yenisey, Amur, Congo and Mekong, with lengths over or close to 5000 km, were calculated using the proposed method. The results may represent the most reliable and accurate lengths of the principal rivers of the world that are currently achievable. 相似文献
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软科学这一术语是70年代在国外提出的.然而30多年以来,它在国外不仅未得到普遍的承认,而且对软科学的定义也还未能达成大体上一致的共识.而在改革开放后的中国,出于决策科学化和民主化的需要,经过一些领导人的提倡和支持,特别是通过1986年召开的软科学座谈会及1994年召开的全国软科学工作会议,软科学事业得到了蓬勃的发展.据初步统计,截止1998年底全国共有软科学研究机构1224个,研究人员32655人,初步形成了一支较为强大的研究队伍,并取得了数百项覆盖多个领域的研究成果,为支持各级各类的决策发挥了一定的作用. 相似文献
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Tobias Nilsson Benedikt Soja Kyriakos Balidakis Maria Karbon Robert Heinkelmann Zhiguo Deng Harald Schuh 《Journal of Geodesy》2017,91(7):857-866
The very long baseline interferometry (VLBI) Intensive sessions are typically 1-h and single-baseline VLBI sessions, specifically designed to yield low-latency estimates of UT1-UTC. In this work, we investigate what accuracy is obtained from these sessions and how it can be improved. In particular, we study the modeling of the troposphere in the data analysis. The impact of including external information on the zenith wet delays (ZWD) and tropospheric gradients from GPS or numerical weather prediction models is studied. Additionally, we test estimating tropospheric gradients in the data analysis, which is normally not done. To evaluate the results, we compared the UT1-UTC values from the Intensives to those from simultaneous 24-h VLBI session. Furthermore, we calculated length of day (LOD) estimates using the UT1-UTC values from consecutive Intensives and compared these to the LOD estimated by GPS. We find that there is not much benefit in using external ZWD; however, including external information on the gradients improves the agreement with the reference data. If gradients are estimated in the data analysis, and appropriate constraints are applied, the WRMS difference w.r.t. UT1-UTC from 24-h sessions is reduced by 5% and the WRMS difference w.r.t. the LOD from GPS by up to 12%. The best agreement between Intensives and the reference time series is obtained when using both external gradients from GPS and additionally estimating gradients in the data analysis. 相似文献
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In this letter, we are trying to resolve the electromagnetic problem for the movements of the superconducting particles of the protoplanetary cloud in the magnetic field of Saturn. The force of levitation (Meissner-Ochsenfeld phenomenon) is introduced to the field of planetary science for the first time. It is shown from our theoretical analysis that rings of Saturn might have a superconducting origin, and rings might levitate within magnetic equator plane of the planet. 相似文献
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本文从理论上推导了工程摄影测量中交向摄影方式各元素影响物点坐标精度的严密公式,并根据理论分析的结果,采用先进的数码相机和量测相机进行了一定的试验,在仔细分析试验结果的基础上,找出了工程摄影测量中交向摄影最佳的交向角、摄影基线、摄影距离和摄影比例尺等参数,对物点坐标总精度的影响规律。实际作业中,要使最佳交向摄影方式获得最理想的点位精度,所总结出的结论是可行的。 相似文献