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Regional Water Security in the Hindu Kush Himalayan Region: Role of Geospatial Science and Tools
Hindu Kush Himalayan river basins Water resources assessment Disaster risk reduction
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2014/12/16
The Hindu Kush Himalayan (HKH) region is the source of ten large Asian river systems – the Amu Darya, Indus, Ganges, Brahmaputra (Yarlungtsanpo), Irrawaddy, Salween (Nu), Mekong (Lancang), Yangtse (Ji...
Assessment of coastal erosion along Indian coast on 1 : 25, 000 scaleusing satellite data
Shoreline changes Coastal Erosion Accretion Highest High Tide Line IRS LISS-IV Coastal Protection
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2014/12/15
The long stretch of coastline on the either side of Indian peninsula is subjected to varied coastal processes and anthropogenic pressures, which makes the coast vulnerable to erosion. There is no syst...
Temporal changes in semivariogram of ocean surface latent heat flux under linear trend
Temporal Spatial Statistics Oceanography Prediction
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2014/12/15
One of the ways to study spatio-temporal variability of a process is to consider it as a temporal variation of a spatial process. Semivariogram is a measure of spatial variation in a process. If a pro...
Estimation of regional mass anomalies from Gravity Recovery and Climate Experiment (GRACE) over Himalayan region
Water Equivalent height (WEH) GRACE Himalaya
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2014/12/15
Time-variable gravity changes are caused by a combination of postglacial rebound, redistribution of water and snow/ice on land and as well as in the ocean. The Gravity Recovery and Climate Experiment ...
Groundwater suitability recharge zones modelling – A GIS application
Hydrology Decision Support Thematic Ground Water Potential Zones (GWPZ) Multi Criteria Decision Making (MCDM) Analytical Hierarchy Process (AHP) Sensitivity Analysis (SA)
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2014/12/15
Groundwater quality in Gujarat state is highly variable and due to multiplicity of factors viz. influenced by direct sea water encroachment, inherent sediment salinity, water logging, overexploitation...
Integration of multispectral satellite and hyperspectral field data for aquatic macrophyte studies
Aquatic macrophytes Spectral analysis Principal Component analysis Hyperspectral Vegetation indices
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2014/12/15
Aquatic macrophytes (AM) can serve as useful indicators of water pollution along the littoral zones. The spectral signatures of various AM were investigated to determine whether species could be discr...
Investigation of Optical Flow Techniques for Extracting Non-Rigid Sea Surface Currents
Non-Rigid Sea surface currents Sea surface temperature Eddies Optical flow Smoothness
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2014/12/1
This paper is about performance evaluation of two optical flow (OF) methods for extracting sea surface curved motions like eddies. By incorporating a simple matrix and its rotation in programming proc...
Change Detection Of Seafloor Topography By Modeling Multitemporal Multibeam Echosounder Measurements
Multibeam Echo sounder 3D sea floor modeling change detection
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2014/9/29
The term "topography" implies the study of numerous landforms that exist on or below the Earth and a detailed knowledge of topography is required to understand the most Earth processes. In the oceans,...
2004年 4月 1日磁通量传输事件特性的研究— 通量管内电流密度、 粒子运动与管轴方向的对比分析
电流密度 磁通量管 磁层顶
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2014/2/21
本文利用 Cluster四颗卫星上磁通门磁力计 ( FG M )的同时观测 ,采用旋度器方法
(Curl ometer) ,计算和分析了 2004年 4月 1日 12: 24到 12: 54UT期间 Cluster卫星观测的多个磁
通量传输事件 ( FTEs)的特性。结果表明:磁通量管内电流密度较大 ,可达到约 10
- 7
A /m2
。应
用最小方向微分法 (MDD) ,发现这些 ...
本文在充分考虑乘积性季节模型的情况下，利用差分法对电离层总电子含量（Total Electron Content，TEC）样本序列进行平稳化处理后，采用时间序列分析中的求和自回归移动平均模型（简称ARIMA，Autoregressive Integrated Moving Average)对TEC值序列进行预报分析。以欧洲定轨道中心（CODE）提供的2008-2012年电离层TEC值为样本数据，分...
IHO S-100中坐标参照系的研究
IHO S-57 S-100 电子海图
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2014/7/15
国际海道测量组织(IHO) 新开发的海道测量数据标准即通用海道测量数据模型(S-100)当中, 所采用的坐标参照系与现在使用的S-57标准有较大区别, 文章从概念和坐标操作类型等方面, 对S-100标准中的坐标参照系进行了初步研究, 并展望了它在我国未来电子海图生产中的应用前景。
MONITORING OF LANDSLIDES WITH MASS MARKET GPS: AN ALTERNATIVE LOW COST SOLUTION
Low cost GNSS Virtual RINEX Network RTK deformation monitoring
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2014/4/24
The territory of Italy is seriously afflicted by hydrological risk, with 82% of its area affected by this phenomenon.
In recent years, technologies and advanced research have played an important role...
GIS APPROACH FOR PREVENTIVE EVALUATION OF ROADS LOSS OF EFFICIENCY IN HYDROGEOLOGICAL EMERGENCIES
GIS Hydrogeology Hazards Decision Support.
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2014/4/24
The theme of the simulation of hydrogeological risk with GIS technology is analyzed with focus on the modeling of the architecture
of a Spatial Data Base to support risk analysis and on the construc...
14 YEARS OF GPS TROPOSPHERIC DELAYS IN THE FRENCH-ITALIAN BORDER REGION: A DATA BASE FOR METEOROLOGICAL AND CLIMATOLOGICAL ANALYSES
Climate Databases Geodesy Meteorology Monitoring International Networks GPS
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2014/4/24
GPS data from 181 permanent stations extracted from different networks covering France and the Italian part of the Alps are used to
estimate a homogeneous set of tropospheric parameters over 14 year...
THE ELEVATION NET FOR THE SALTWATER INTRUSION PHENOMENON ANALYSIS IN THE COASTAL PLAIN OF PISA
Surveying, Hydrology Environment DEM/DTM LIDAR Georeferencing Model
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2014/4/24
In coastal plains, such as that of Pisa, with particular reference to groundwater, the marine intrusion phenomenon occurs not only
through the freshwater/saltwater interface in the aquifer along the...