Results 31 to 40 of about 528 (114)
Food and Energy Security, Volume 15, Issue 2, March/April 2026.ABSTRACT Net photosynthetic rate (Pn) serves as a key indicator for evaluating plant growth and yield. In order to explore an effective method for monitoring winter rapeseed Pn using unmanned aerial vehicle (UAV) multispectral technology, the winter rapeseed was taken as the research object and the multispectral images were obtained through UAVs in ...
ChengYang Ni +7 more
wiley +1 more source
World Water Policy, Volume 12, Issue 1, February 2026.ABSTRACT Water security in tropical regions faces escalating pressures from climate change, land‐use shifts, and population growth. We conducted a bibliometric review of 1146 peer‐reviewed articles (1964–2023) on tropical water security. Latent Dirichlet Allocation identified 13 thematic topics and their evolution. Publications rose sharply after 2012,
Karling Fernanda Schuster +3 more
wiley +1 more source
Prospects and perils in the geospatial turn of conservation
Conservation Biology, Volume 39, Issue 6, December 2025.Abstract Conservation has embraced advances in big data and related digital technologies as key to preventing biodiversity loss, especially in the identification of areas of conservation priority based on spatial data, which we call the big geospatial data turn.
Jocelyne Shimin Sze, Laura Aileen Sauls
wiley +1 more source
Shuitu Baochi Xuebao, 2004 遥感手段是解决区域蒸发量分布问题的重要方法。随着遥感和GIS技术的发展,定量遥感模型从大叶模型发展到两层、多层或多源模型,参数反演是其核心内涵,出现了比较系统的参数反演公式,但在参数反演时一般都需要风速、温度等参数,这些参数用遥感手段比较难以获得,这就限制了定量遥感模型的广泛应用,因此研究仅依靠遥感信息反演地表通量的定量模型是今后定量遥感模型的主要发展趋势。
张长春 魏加华 王光谦 邵景力 李慈君
doaj
Kongjian kexue xuebao, 2023 遥感卫星图像数据量的高速增长，以及遥感卫星搭载的相机不同工作模式下产生的数据差异化处理的需求，为星间数据处理带来了巨大挑战。针对星载Gbit·s–1级高速数据收发及文件缓存等星间数据处理面临的问题，以百兆每秒级星载高速接收缓存系统为切入点，以遥感卫星数据处理的发展为依据，在分析SerDes传输原理的基础上，采用模型仿真和工程验证的方法，制定了高速串行数据链路层传输协议SSLLP（Satellite Serial Link Layer Protocol）和类文件化高速缓存的策略 ...
宋 景星 +3 more
doaj +1 more source
Journal of Critical Infrastructure Policy, Volume 6, Issue 2, Fall/Winter 2025.ABSTRACT Recent advances in interferometric synthetic aperture radar (InSAR) provide millimeter‐scale resolution monitoring of ground deformation in urban coastal environments, repeatedly highlighting the vulnerability of regions like South Florida.
Jean‐Pierre Bardet
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低空无人飞行器遥感技术在重庆城口滑坡堰塞湖灾害监测中的应用研究
Shuitu Baochi Xuebao, 2011 应用无人飞行器低空遥感技术对重庆城口滑坡地质灾害进行监测,分析了无人飞行器低空遥感技术在复杂地形及气象条件下数据获取与数据处理的技术流程和方法,并对无人飞行器低空遥感技术在滑坡地质灾害灾情评估和灾损评价中的应用上进行了探索.结果表明,无人飞行器低空遥感技术在困难地区完成遥感数据的获取与处理、三维建模和应用分析具有明显优势;无人飞行器低空遥感技术生成的数字正射影像图和数字高程模型数据可以为地质灾害发生后的抢险救灾、灾情评估和灾后重建提供准确、直观、翔实的基础数据和统计分析数据 ...
马泽忠, 王福海, 刘智华, 刘学
doaj
Towards a global understanding of tree mortality
New Phytologist, Volume 245, Issue 6, Page 2377-2392, March 2025.Summary Rates of tree mortality are increasing globally, with implications for forests and climate. Yet, how and why these trends vary globally remain unknown. Developing a comprehensive assessment of global tree mortality will require systematically integrating data from ground‐based long‐term forest monitoring with large‐scale remote sensing.
International Tree Mortality Network +114 more
wiley +1 more source
Integrative Conservation, Volume 3, Issue 2, Page 142-147, June 2024.In the process of integrating and optimizing of nature reserves in China, preserving farmland would increase the exposure level and decrease the maximum depth of nature reserves. Abstract Spatial contradictions between nature conservation and social development are prominent in the integration and optimization of nature reserves (NRs) in China.
Haiyang Gao, Di Zhu
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Zhejiang Daxue xuebao. Lixue ban, 2011 为提高单个计算节点创建影像金字塔的速度，本研究首先将GPU并行技术用于加速影像重采样算法.影像重采样算法是影像金字塔创建算法的核心步骤，由于金字塔创建过程中数据量会不断发生变化，而数据量的大小直接影响GPU重采样算法效率.提出了一种基于阈值的金字塔遥感影像创建算法，算法将GPU并行与CPU串行遥感影像重采样算法结合，在创建影像金字塔时，依据阈值动态选择不同的重采样算法，并将本算法应用到土地遥感影像金字塔管理中.实验采用大小为10371×7945的24位遥感影像进行测试，结果表明 ...
KANGJun-feng(康俊锋) +3 more
doaj +1 more source