搜索结果: 1-15 共查到“理学 ASTER”相关记录18条 . 查询时间(0.187 秒)
COMPARISON OF BAND RATIOING AND SPECTRAL INDICES METHODS FOR DETECTING ALUNITE AND KAOLINITE MINERALS USING ASTER DATA IN BIGA REGION, TURKEY
Remote Sensing Geology Comparison Detection
2015/7/29
Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER) covers a wide spectral region with 14 bands
from visible to the thermal infrared. The different band ranges can be capable of d...
Characterization and phosphorylation of an MPM-2 reactive sperm protein complex involved in zygotic aster formation
Sperm tubes egg quality microtubules female pronucleus male pronucleus fertilized egg triplet protein
2014/12/11
The zygotic centrosome, contributed by the sperm, forms an array of microtubules that spread throughout the ooplasm. These microtubules are used by the female pronucleus to come into juxtaposition wit...
Landsat-7 ETM+与ASTER建筑指数的定量比较
Landsat ETM+ ASTER NDBI IBI 交互比较 光谱响应函数
2014/3/17
城市化进程导致的城市建筑用地急剧扩张已对全球的环境资源产生了负面影响,因此亟需对其进行监测。在中尺度卫星对地观测系统中,Landsat 和ASTER数据最适合于监测城市建筑用地变化。但是迄今为止,这两种传感器数据的建筑指数之间的关系并不清楚。因此,利用三对同日过空的ETM+和ASTER影像来查明二者建筑指数(IBI、NDBI)之间的定量关系,通过回归统计分析来求出两种传感器建筑指数之间的转换方程。...
Recent developments in ASTER Geoscience products for Australia
Recent developments ASTER Geoscience products Australia
2012/3/30
Identifying and mapping regolith materials at the regional and continental-scale can be facilitated via a new generation of remote sensing methods and standardised geoscience products. The multispectr...
Applying Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER) spectral indices for geological mapping and mineral identification on the Tibetan Plateau
ASTER Thermal Mapping Spectral indices Ultramafic Ophiolite Tibetan Plateau
2011/8/5
Abstract: The Tibetan Plateau holds clues to understanding the dynamics and mechanisms associated with continental growth. Part of the region is characterized by zones of ophiolitic melange believed t...
本文通过对西藏雅鲁藏布江缝合带泽当-罗布莎地区蛇绿岩套的主要岩石组成和蚀变矿物的标准波谱吸收特征分析,比较了标准光谱库的相应岩性光谱吸收特征和ASTER数据波段特征之间的关系,采用连续统去除、比值法和光谱角制图法对ASTER影像数据进行处理及相关岩性和矿物提取。结果表明,蛇绿岩组分岩性中亚铁离子和Fe-OH, Mg-OH的可见-短波红外吸收特征显著,而且有一个宽波长范围的Si-O热红外光谱特征,基...
Recent variation of the Las Vacas Glacier Mt. Aconcagua region, Central Andes, Argentina, based on ASTER stereoscopic images
Las Vacas Glacier Mt. Aconcagua region Central Andes ASTER stereoscopic images
2010/1/28
This work presents the results of the ASTER stereoscopic image processing to calculate the volume changes of Las Vacas Glacier. The processing of medium resolution satellite images (ASTER level 1A – p...
Estimating surface fluxes over the north Tibetan Plateau area with ASTER imagery
surface fluxes north Tibetan Plateau area
2009/4/27
Surface fluxes are important boundary conditions for climatological modeling and Asian monsoon system. The recent availability of high-resolution, multi-band imagery from the ASTER (Advanced Space-bor...
基于ETM+/TM数据提取矿化蚀变遥感异常已趋于成熟，而利用ASTER（先进星载热发射和反射辐射仪）遥感数据提取矿化蚀变遥感异常鲜有报道。本研究利用USGS波谱数据库中典型蚀变矿物反射率数据，重建其在ASTER数据中波谱曲线研究表明，ASTER遥感数据可以提取Mg-OH、Al-OH、CO32?和Fe3+离子（基团）信息。热液矿床的蚀变围岩通常含有上述4种离子（基团），它们的波谱特征是蚀变遥感异常提...
文中讨论了新的找矿参数——蚀变遥感异常的地质基础和光谱前提，在矿床地质学和蚀变矿物光谱参数特征的基础上，编制了一张用于遥感异常提取及对其地质解释的表格。ETM遥感异常提取技术已在全国推广，ASTER数据可以在三个方面对已推广的ETM起到重要的补充作用：1.利用短波红外增设的波段，对某些矿致异常区分其矿化（矿床）类型；2.利用增设的热红外波段区分某些岩性；3.可有助于解决ETM因第7波段太宽而产生的...
EVALUATION OF ASTER SPECTRAL BANDS FOR AGRICULTURAL LAND COVER MAPPING USING PIXEL-BASED AND OBJECT-BASED CLASSIFICATION APPROACHES
Agriculture, Land cover Object Segmentation
2015/11/16
The ASTER sensor onboard NASA’s Earth observing satellite Terra is an optical remote sensor comprised of 14 spectral bands ranging
from the visible to thermal infrared region. With its multispectral...
先进星载热发射和反射辐射仪（ASTER）———地质学家的最佳选择。
Assessing lahars from ice-capped volcanoes using ASTER satellite data, the SRTM DTM and two different flow models: case study on Iztaccíhuatl (Central Mexico)
ice-capped volcanoes ASTER satellite data the SRTM DTM and two different flow models Iztaccíhuatl (Central Mexico)
2009/12/30
In this study, analysis of the glaciers on Iztaccíhuatl shows a dramatic retreat during the last 150 years: the glaciated area in 2007 corresponds to only 4% of the one in 1850 AD and the glaciers are...
ASTER数据在浅覆盖区蚀变遥感异常信息提取中的应用——以新疆西准噶尔包古图斑岩铜矿岩体为例
ASTER（Advanced Spaceborne Thermal Emission and Reflection Radiometer）数据 浅覆盖区 蚀变遥感异常 蚀变矿物分类 包古图铜矿 新疆
2010/8/19
遥感卫星的多光谱数据应用于找矿已取得显著成效，2004年7月中国卫星地面站开始提供ASTER（Advanced Spaceborne Thermal Emission and Reflection Radiometer，高级星载热发射反照辐射计）数据，因涵盖波长范围宽［VNIR（Visible and Near Infrared）、SWIR（Short wavelength Infrare...