搜索结果: 16-30 共查到“知识库 遥感地质学”相关记录172条 . 查询时间(1.939 秒)
COUPLING ANALYSIS OF HEAT ISLAND EFFECTS, VEGETATION COVERAGE AND URBAN FLOOD IN WUHAN
Heat Island Vegetation Coverage Urban Flood Change Detection Wuhan
2018/5/15
In this paper, satellite image, remote sensing technique and geographic information system technique are main technical bases. Spectral and other factors comprehensive analysis and visual interpretati...
STUDIES AND APPLICATION OF REMOTE SENSING RETRIEVAL METHOD OF SOIL MOISTURE CONTENT IN LAND PARCEL UNITS IN IRRIGATION AREA
Land Parcel Unit Soil Moisture Content Remote Sensing Retrieval Water Resource Management Irrigation Area
2018/5/17
Soil moisture is one of the important hydrological elements. Obtaining soil moisture accurately and effectively is of great significance for water resource management in irrigation area. During the pr...
REMOTE SENSING ANALYSIS OF VOLUME IN TAIHU LAKE: APPLICATION FOR ICESAT/HYDROWEB AND LANDSAT DATA
Taihu Lake Surface area Water level Lake Volume variation Water balance
2018/5/15
In order to evaluate the fluctuation of Taihui Lake, ICESat/Hydroweb and Landsat data recorded from 1975 to 2015 were used to examine changes in lake level and area, derived from Normalized Difference...
URBAN SHANTY TOWN RECOGNITION BASED ON HIGH-RESOLUTION REMOTE SENSING IMAGES AND NATIONAL GEOGRAPHICAL MONITORING FEATURES – A CASE STUDY OF NANNING CITY
Gray-level co-occurrence matrix shanty town residential suitability nearest neighbour
2018/5/14
Urban shanty towns are communities that has contiguous old and dilapidated houses with more than 2000 square meters built-up area or more than 50 households. This study makes attempts to extract shant...
SPACE-AIR-GROUND CO-OBSERVATION IN WATERSHED MANAGEMENT: THE ESTABLISHMENT OF SYSTEM
remote sensing dynamic monitoring water administration law watershed management
2018/5/17
To realize real-time, detailed, and standardized watershed monitoring and management, a dynamic monitoring system is proposed, at all levels (space, air, and ground), by comprehensively utilizing adva...
STUDY ON DESERTIFICATION MONITORING FROM 2000 TO 2014 AND ITS DRIVING FACTORS THROUGH REMOTE SENSING IN NINGXIA，CHINA
Ningxia Desertification Rainfall Use Efficiency Grey Relational Analysis Driving Factors Precipitation
2018/5/17
Due to the implementation of national policy, the desertification in Ningxia has been gradually reduced, but the overall situation of desertification is still serious. Rainfall Use Efficiency(RUE) can...
基于遥感数据的地质构造信息提取应用
遥感数据 地质构造 信息提取 线性构造 图像增强 Landsat8 OLI
2018/5/15
以Landsat8 OLI遥感数据为主要信息源，利用主成分分析、定向滤波等图像增强方式和DEM三维技术对以临沂市会宝岭铁矿为研究区域的断裂构造进行提取，并采用激发极化探测和瞬变电磁探测两种方法勘探验证。试验结果表明：采用遥感数据提取到研究区内的线性构造有54条；通过对其中4测区进行6次勘探验证后发现均有断裂层，与遥感数据提取到的信息高度吻合。
Immediately downstream effects of Three Gorges Dam on channel sandbars morphodynamics between Yichang-Chenglingji Reach of the Changjiang River, China
sandbars morphodynamics Three Gorges Dam (TGD) remote sensing images Yichang-Chenglingji Reach Changjiang River
2018/4/9
Sandbars are of vital ecological and environmental significance, which however, have been intensively influenced by human activities. Morphodynamic processes of sandbars along the Yichang-Chenglingji ...
REAL-TIME AND POST-PROCESSED GEOREFERENCING FOR HYPERPSPECTRAL DRONE REMOTE SENSING
Photogrammetry Real-time georeferencing drone Hyperspectral frame camera Remote Sensing
2018/6/4
The use of drones and photogrammetric technologies are increasing rapidly in different applications. Currently, drone processing workflow is in most cases based on sequential image acquisition and pos...
基于FY-2E卫星数据的福建沿海海雾遥感监测
FY-2E卫星 海雾 遥感监测 福建沿海
2018/4/10
利用我国自主研制的风云二号静止气象卫星资料,结合地面自动气象站能见度资料,通过对大量不同时相卫星资料的试验分析,找出台湾海峡海雾、云以及晴空海表等典型下垫面的可见光、热红外和中红外3个通道的光谱特征和变化规律,在此基础上运用反射率阈值实现云雾与海洋表面的自动分离,用亮温阈值实现海雾和低云与中高云的自动分离,用中红外和热红外通道的归一化差值指标实现夜间海雾的自动识别,最后建立台湾海峡海雾自动监测业务...
内存数据库在ZY1-02C海量数据空间检索中的应用
内存数据库 空间索引 矢量数据
2018/4/10
实现海量空间数据的高效检索是资源一号02C(ZY1-02C)卫星数据应用的重要前提。在传统基于关系型数据库的空间查询模式中,频繁的磁盘I/O及内外存交换对查询性能有较大影响,而完全基于内存的内存数据库技术可有效规避这一问题,显著提升效率。基于Key-Value型内存数据库Redis,研究并设计了矢量数据在Redis中的存储结构,并实现了基于Key-Value型存储结构的空间R树索引。经实际应用检验...
长三角地区一次严重雾霾事件的多源遥感监测研究
雾霾 卫星遥感 CALIPSO/CALIOP COMS/GOCI 气溶胶
2018/4/10
利用云—气溶胶激光雷达和红外探路者卫星(cloud-aerosol LiDAR and infrared pathfinder satellite observations,CALIPSO)搭载的云—气溶胶正交极化激光雷达(cloud-aerosol LiDAR with orthogonal polarization,CALIOP)(CALIPSO/CALIOP)数据、海洋与气象学多功能卫星(c...
新疆玛纳斯湖近40年间时空变化图谱及其驱动机制
玛纳斯湖 时空变化图谱 驱动机制 遥感
2018/4/10
以新疆玛纳斯湖为研究区,利用1972—2014年间8期遥感影像数据,在提取了湖泊水域信息的基础上对近40 a间玛纳斯湖水域演化进行了研究。结果表明,1972—2014年间玛纳斯湖呈现明显“增加—减小—增加—减小”变化态势,水域重心不断往西南方向偏移。1972—1999年间玛纳斯湖长期处于干涸状态,2000年恢复至研究期间最大水域面积(248.69 km2),之后经历了2000—2008年和2011...
中草药材种植遥感监测与分析——以云南省文山和红河地区三七种植为例
三七 地形因子 时空变化 滞后性
2018/4/10
在分析三七种植区域的光谱和空间特征的基础上,提出了一种有效的三七种植用地遥感提取方法,并基于多时相影像分析了研究区三七种植面积变化。结果表明,2010—2014年间云南省文山州和红河州三七的种植面积持续增长,2015年三七种植面积有所回落。其中2012—2014年间面积增长速度最快,导致供过于求,价格降低。分析发现,目前三七主要种植于海拔在1 400~2 000 m且坡度<25°的坡地上。