共查询到20条相似文献,搜索用时 46 毫秒
1.
2.
首先回顾国内外遥感技术的发展历史;其次总结遥感数据在水利中的应用,尤其是在洪涝灾害监测评估中水体的动态监测、旱情灾害监测中土壤含水量监测、地表水源监测中水体边界和面积的提取及水土保持监测中植被覆盖度等环境因子的提取中的应用;最后结合现代信息技术手段,展望遥感大数据在水利应用中的前景,即形成由水利大数据到知识库,再到知识图谱,最终利用可视化应用服务水利行业的整体应用框架,利用微观宏观知识的融合,可服务于水利科学机理揭示,并提升水利管理的实时性、精准性、科学性和智能性,符合水利信息化的新时代要求。 相似文献
3.
随着信息化技术的不断演进和发展,"互联网+"、大数据、云计算、物联网等先进信息技术正成为水利信息化发展的新引擎和新动力。从水利大数据体系建设、分析平台搭建和应用方向3个方面探讨大数据技术在水利管理领域中的应用,提出水利大数据体系建设需要整合的内外部及互联网数据、利用主流大数据组件搭建大数据分析平台的方法、结合水利管理业务进行大数据分析场景设计的思路,为水利大数据分析提供数据体系、分析平台、水利业务应用等层面的建设思路。 相似文献
4.
5.
6.
湖北省为解决水利信息化中数据集中管理和使用、应用协同和创新等问题,提出建设智慧江汉平台项目。智慧江汉平台将按照“统一技术标准、统一运行环境、统一数据资源、统一支撑平台、统一门户和应用、 统一安全保障”的思路,基于“一数一源、一源多用”的原则建设水利数据中台,汇聚全省水利及相关数据、 开展数据治理,形成标准一致的基础数据资源,并进行数据资产管理,实现资源共享、信息互通;建设统一应用支撑平台,统一部署三级使用,为全省水利系统提供应用支撑;围绕管理工作重点,以强监管为主导思想, 遵循“分工明确、数据共享、业务协同”的思路,构建建设水利业务中台,改变传统“单独开发、独立运行” 的应用系统建设模式,实现业务全协同;进而通过项目建设中的思索,提出对未来一段时间水利信息化建设的思考,力图促进湖北省水利信息化建设走上健康、良性的发展道路。 相似文献
7.
遥感影像分类技术为我国遥感影像应用于生态建设、绿色发展、乡村振兴、脱贫攻坚和“一带一路”构建等提供了重要的技术支撑,在服务经济社会发展、建设美丽中国、保障民生安全等方面具有重要意义。近年来,大数据、人工智能技术的飞速发展,使得国产遥感影像在分类应用的研究取得重大发展。简要分析了遥感影像分类技术及每阶段存在的问题;对国内主要六个系列遥感卫星数据进行了概述;综合分析了国产遥感影像基于像元的、混合像元的、面向对象的、基于深度学习的四种分类方法,并探讨其在分类应用中的研究进展,通过国产遥感影像分类领域中的应用情况,进一步在方法上对四种分类分别进行比较分析;提出国产遥感影像分类应用中存在的问题,对未来国产遥感影像应用发展的趋势进行了预估。 相似文献
8.
9.
为提高黄河下游河势遥感监测能力,提升河势遥感监测服务水平,深入探讨黄河下游河势遥感监测的现状和存在的问题,提出黄河下游河势遥感监测系统的建设目标及思路。通过充分整合卫星遥感、黄河水利对象等相关数据,最大程度地共享现有数据资料和软硬件资源,设计开发黄河下游河势遥感监测系统,包括卫星遥感数据传输通道建设、遥感数据处理软硬件和存储设施建设、河势信息解译和服务功能开发,以及河势信息数据库建设等。结果表明:黄河下游河势遥感监测系统的建设可强化黄河河势遥感监测的数据计算与存储服务能力,提升河势信息解译的自动化水平,实现河势遥感监测工作的数字化及河势信息服务的高效化,具有很好的推广应用前景。 相似文献
10.
针对在综合网站上查询水利最新动态,检索信息,下载文献较繁琐的问题,结合目前河北省水利行业数据资源现状,遵循水利知识服务平台建设的原则,采用"自建+外采"的整合方式,以知识共享和创新促进知识价值最大化为出发点,利用TPI大数据和KBase知识库等管理系统核心技术,对水利数据资源进行统一规划、整合加工和挖掘分析,逐步建设水利知识服务平台,并搭建水利文献信息系统、河北省水利科研项目管理和知识培训平台3个方面的应用。河北省水利知识服务平台的建设与应用可有效促进水利大数据资源共享和产业的协同创新发展。 相似文献
11.
This study develops and demonstrates the Integrated Urban Water Model (IUWM) for forecasting urban water demand with options to assess effects of water conservation and reuse. While water and energy balance drive hydrologic, storage and recycling simulations on a daily timestep, social and infrastructural processes are resolved by spatially distributed parameters. IUWM is deployed as an online tool with geographical information system (GIS) interfaces, enhancing its ease of use and applicability at building to municipal scales. The performance of the model at varying spatial scales was evaluated with extensive water metering data for the City of Fort Collins, Colorado. The calibrated model provided very good estimates of demands at individual block group as well as the municipal service area. The capacity of IUWM for the assessment of the spatiotemporal variability of water consumption and effects of water demand management strategies under climate and urban growth scenarios is discussed. 相似文献
12.
随着我国工业化以及城镇化进程加快,环境污染日益严重,对人体健康、生态安全以及生产生活构成重要影响。为了有效监控水质变化情况,水质预测模型的研究与应用显得尤为重要,本文专门就基于人工神经网络水质预测模型进行了探讨。 相似文献
13.
以浙江省为例,分析了我国南方存在的水资源问题及其形成的原因,并从水制度和管理、水质污染的控制和治理以及水利工程技术改进三方面,提出了解决我国南方水资源问题的对策。 相似文献
14.
15.
16.
作者介绍了欧姆龙PLC及iFIX组态软件在保德电厂补给水及废水处理控制系统中的应用。重点阐述了该系统的软硬件组成、系统功能及特点。该系统自投运以来,设备运行正常,符合设计的要求。 相似文献
17.
The presented study features an event detection model alerting for contamination events in water distribution systems. The developed model comprises a minimum volume ellipsoid (MVE) classifier, detecting outlier measurements, and a following sequence analysis utilizing the MVE binary output, for the classification of events. The model is updated continuously and exploits a constantly growing data base. The MVE enables simultaneous analysis of the water quality parameters. The multivariate analysis explores the relations between water quality parameters and detects changes in their common patterns. The suggested model applied an un-supervised classification method, eliminates the need for simulated events examples in the classifier construction. In the absent of satisfying information regarding the influence of contamination event on the parameter measurements, eliminating the use of any assumption contributes to the model reliability and generality. The model was trained on a real water utility data, and tested on randomly simulated events that were superimposed on the original data base. The model showed high accuracy and detection ability compared to previous studies. 相似文献
18.
水利信息化建设是水利现代化建设的重要组成部分,目前普遍存在项目孤岛、重复建设、资源分散、开发利用率低等问题,科学、有效地对水利数据中心顶层构架进行规划变得尤为重要。分析水利工程管理单位的信息化建设现状,并结合存在问题对海河下游管理局水利数据中心进行设计和规划,对数据中心总体构架及核心内容进行分析与研究,提出一套适合海河下游管理局信息化建设的方案。实践证明,只有加强领导,科学规划,强化职能,加大投入,完善运行管理机制,才能切实推进水利事业信息化建设的"十三五"规划,推进水利现代化进程。 相似文献
19.
Sustainable basin management is important for both people and ecosystems. Increasing science-policy and inter-sectoral dialogue is recommended as a means to balance competing demands and achieve this; however, this dialogue is not necessarily easy to achieve. Here, we present a serious game aimed at communicating the complex relationships present in river basins and enabling dialogue between policy-makers and scientists in the Magdalena-Cauca basin, Colombia. Players guide the development of a fictional river basin over 30 years and the impacts of their decisions are simulated using WEAP water resources modelling software. The game has been used in various contexts. Here, experiences with stakeholders at a national forum in Bogota and with water professionals in Bangkok are discussed. The experience shows that the game is attractive to stakeholders, stimulates dialogue and provides interesting insights into the way computer models and stakeholders mental models can interact with and enrich each other. 相似文献
20.
Raising water demands and insufficient freshwater resources are the main reasons of water conflicts in transboundary watersheds. Sustainable water allocation can be a resolution for water disputes as it addresses simultaneously economic, social and environmental benefits. In this paper, a multi-objective model is introduced, which leads to sustainable water allocation of transboundary watersheds taking into account all these three aspects. Five water allocation objectives are proposed for this model in which three of them address the social factors and others represent the economic and environmental preferences. The Compromise Programming technique is employed to solve the applied model to the Sefidrud Basin, Iran and several water allocation schemes are provided based on various weights combinations. The results of the model elucidate that the proposed model can allocate 83 percent of the Basin's water resources, to its stakeholders in a sustainable way while the environmental demand is satisfied. 相似文献