搜索结果: 1-15 共查到“测绘科学技术 Envisat”相关记录18条 . 查询时间(0.078 秒)
NEURAL NETWORK-BASED ANALYTICAL MODEL FOR BIOMASS ESTIMATION IN POYANG LAKE WETLAND USING ENVISAT ASAR DATA
biomass sar wetland monitoring
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2016/1/3
Poyang Lake is the largest freshwater lake in China with an area of about 3,000 km2. Its wetland ecosystem has a significant impact on China' s environment change. Traditional way to monitor biomass c...
MONITORING AGRICULTURAL ACTIVITIES USING MULTI-TEMPORAL ASAR ENVISAT DATA
Land Cover Classification Change Detection SAR Multi-temporal Agriculture
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2015/12/31
Agricultural activities affect strongly their environment. Therefore and because of their other economic, industrial and political effects, monitoring agricultural areas is increasingly demanded. Spac...
REDUCTION OF ATMOSPHERIC WATER VAPOUR EFFECTS ON ENVISAT ASAR INTERFEROGRAMS USING MERIS NEAR IR MEASUREMENTS
SAR Change Detection Radar Integration Monitoring Mapping Surface Geodesy
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2015/12/30
Atmospheric water vapour effects represent a major limitation of repeat-pass Interferometric SAR (InSAR) techniques including InSAR time series approaches (e.g. permanent scatterers (PS) and small bas...
ESTIMATION OF SOURCE PARAMETERS OF 2003 BAM (IRAN) EARTHQUAKE FROM ENVISAT SAR IMAGES USING GENETIC ALGORITHM TECHNIQUE
Satellite Remote Sensing Earthquakes Spatial Modeling Disaster SAR Image Radar Interferometric SAR (InSAR)
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2015/12/29
In this paper, we analyze synthetic aperture radar (SAR) interferograms derived from Envisat radar data. Use of interferograms from both ascending and descending satellite passes enables usto indicate...
PERCENT TREE COVER MAPPING FROM ENVISAT MERIS AND MODIS DATA
Forestry Percentage vegetation cover Mapping Metrics Prediction Algorithms
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2015/12/28
The aim of this study was to compare percent tree cover products of Envisat MERIS and MODIS data of Seyhan River Basin at the Eastern Mediterranean Region of Turkey. In this study, Regression Tree (RT...
FUZZY CLASSIFICATION OF MEDITERRANEAN TYPE FOREST USING ENVISAT MERIS DATA
Fuzzy classification Linear mixture modeling Artificial neural networks Envisat MERIS
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2015/12/28
The aim of this study was to classify Envisat MERIS and Landsat ETM satellite sensor imagery using fuzzy classification techniques such as, linear mixture modelling and artificial neural networks. The...
STUDY ON ENVISAT ASAR DATA ASSIMILATION IN RICE GROWTH MODEL FOR YIELD ESTIMATION
Rice Yield Map Crop Model Radar Model Data Assimilation Optimization Algorithm Classification
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2015/12/28
In this paper, a practical scheme for assimilation of multi-temporal and multi-polarization ENVISAT ASAR data in rice crop model to map rice yield has been presented. To achieve this, rice distributio...
LAND COVER CLASSIFICATION USING MULTI-SOURCE DATA FUSION OF ENVISAT-ASAR AND IRS P6 LISS-III SATELLITE DATA–A CASE STUDY OVER TROPICAL MOIST DECIDUOUS FORESTED REGIONS OF KARNATAKA,INDIA
Remote sensing Land cover Classification Multisensor Fusion ASAR
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2015/12/23
The present study addresses the potential of Synthetic Aperture Radar (SAR) data for land cover classification in parts of Dandeli forested regions, Karnataka, India. a FCC has been generated from coh...
MAPPING OF AGRICULTURAL ACTIVITIES USING MULTI-TEMPORAL ASAR ENVISAT DATA
ASAR Classification Multi-Temporal Land-use Monitoring
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2015/9/17
Space borne radar data facilitates continuous monitoring of almost any location on the earth (limitations in polar zones) at quite low costs. Almost weather-independent operation of radar systems enab...
evaluation of the potential of sar ers and asar envisat sensors in multi-incidence and multi-polarisation modes for landscape study in french guyana: examples of kourou and saint laurent du maroni
Calibration Comparison Polarization Landscape Radar SAR
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2015/9/1
This study aims to assess the contribution of ENVISAT ASAR data for the monitoring of the littoral plains of Kourou and Saint Laurent du Maroni (French Guyana).
Land cover classification in ukrainian carpathians using the meris terrestrial chlorophyl index and red edge position from envisat meris data
MERIS Terrestrial Chlorophyll Index Red Edge Position Ecosystems monitoring
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2015/8/20
This paper describes the results of a preliminary study towards the use of MERIS data for land cover classification in the Ukrainian
Carpathians. The work is carried out in the frames of BEAR initiat...
STUDIES ON URBAN HEAT ISLANDS USING ENVISAT AATSR DATA
Satellite Data Surface Albedo Surface Energy Balance Evapotranspiration Thermal Inertia Urban Heat Island Surface Temperature
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2015/8/3
In the studies related to surface energy balance, satellite data provides important inputs for estimating regional surface albedo and evapotranspiration. The paper describes the analysis of day and ni...
THE USE OF ENVISAT ALTERNATING POLARIZATION SAR IMAGES IN AGRICULTURAL MONITORING IN COMPARISON WITH RADARSAT-1 SAR IMAGES
Agriculture SAR polarization satellite monitoring
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2015/7/29
In this paper Envisat alternating polarization SAR images were used in the agricultural monitoring and yield damage assessment. The
main advantage of using synthetic aperture radar (SAR) is that sat...
联合Envisat和ALOS卫星影像确定 L'Aquila地震震源机制
L'Aquila地震 差分干涉测量 同震形变 滑动分布反演 断层面自动剖分
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2013/11/5
2009年4月6日意大利L'Aquila地区发生了Mw6.3级地震，该地震造成了300余人的人员死亡。本文联合不同波长、不同入射倾角的升降轨Envisat和ALOS卫星的差分干涉数据对该地震进行震源机制解的反演研究。研究首先对卫星雷达影像进行二通差分干涉处理，获取了覆盖L'Aquila地震震区的完整InSAR同震形变场，然后结合四叉树和均匀采样方法对原始观测数据进行降采样。在此基础上，联合GPS形...
由于ENVISAT/AATSR资料不同角度热辐射亮度值之间存在较高的相关性从而导致较大误差的产生，本文尝试避开这种误差源，只选取天底观测数据对黄土高原陇东地区整层大气水汽含量及地表温度进行反演.与MODIS整层大气水汽含量产品对比验证表明，本文结果与MODIS产品有一定差异，但是可以直接用于大气透过率的估算.结合野外观测数据对地表温度反演结果的检验表明，最大绝对误差为4.0 ℃，平均相对误差为5....