搜索结果: 1-15 共查到“理学 MODIS”相关记录89条 . 查询时间(0.665 秒)
水稻是南亚国家的主要食物来源。开展水稻种植的生长监测，对确保该地区的粮食安全和土地资源管理至关重要。近日，中科院青藏高原研究所地气作用与气候效应团队科研人员与尼泊尔科研院所（特里布文大学）合作，利用MODIS多年时间序列卫星遥感影像，分析了尼泊尔水稻栽培动态跟踪数据。
截至2020年，设计寿命六年的Terra-MODIS已在轨运行长达二十年，成为在轨服务时间最长的多光谱遥感传感器。其继任者NPP-VIIRS也已在轨运行近十年，提供了与MODIS各项指标接近的多光谱数据。基于上述传感器的MODIS/VIIRS叶面积指数（Leaf Area Index，LAI）产品是国际认可度最高的定量遥感产品之一，二十年来为全球气候变化等地球科学研究提供了有力支持。而已有研究表明...
随着经济社会的快速发展和进步，我国湖库水体富营养化情况越来越严重.卫星遥感在水体营养状态监测方面具有重要潜力，但基于卫星遥感的全国范围内湖库水体营养状态监测和分析方面还鲜有研究.本文基于2018夏季的MODIS卫星遥感数据生产FUI指数产品，构建基于FUI水色指数的湖库营养状态评价方法，监测全国范围内144个重点湖库水体的营养状态等级.结果表明：贫营养、中营养、富营养的湖库比例分别为16%、24%...
卫星遥感是获取云物理特征的主要途径之一。云特征的小量变化就可能显著影响地球的能量平衡。因此，云特征的准确观测非常重要。
MITIGATION ATMOSPHERIC EFFECTS IN INTERFEROGRAM WITH USING INTEGRATED MERIS/MODIS DATA AND A CASE STUDY OVER SOUTHERN CALIFORNIA
MERIS MODIS Integration Interferogram correction
2018/5/15
Interferometric synthetic aperture radar(InSAR), as a space geodetictechnology, had been testified a high potential means of earth observation providing a method fordigital elevation model (DEM) and s...
ANALYSIS OF ACCURACY OF MODIS BRDF PRODUCT (MCD43 C6) BASED ON MISR LAND SURFACE BRF PRODUCT – A CASE STUDY OF THE CENTRAL PART OF NORTHEAST ASIA
MODIS BRDF, model accuracy, MISR BRF, vegetation phenology, snow cover
2018/5/14
EOS/MODIS land surface Bi-directional Reflectance Distribution Function (BRDF) product (MCD43), with the latest version C6, is one of the most important operational BRDF products with global coverage....
THE RESEARCH ON THE SPECTRAL CHARACTERISTICS OF SEA FOG BASED ON CALIOP AND MODIS DATA
Sea fog Low Cloud Caliop Modis Monitoring Spectral Characteristics
2018/5/15
In view of that difficulty of distinguish between sea fog and low cloud by optical remote sensing mean, the research on spectral characteristics of sea fog is focused and carried out。The satellite las...
HOW WELL DOES SATELLITE FINE MODE AEROSOL PRODUCT VALIDATE WITH GROUND-BASED MEASUREMENTS FOR MODIS AND HIMAWARI-8?
MODIS Himawari-8 AERONET fine mode aerosol fine mode fraction
2018/5/14
Currently, the validation of MODIS and Himawari-8 aerosol products mostly focuses on AOD, but the validation of their fine mode aerosol data is limited. In this paper, 22 AERONET sites in Asia from 20...
SPATIAL AND TEMPORAL CHANGES OF AEROSOL OPTICAL DEPTH AND ITS DRIVING FACTORS BASED ON MODIS IN JIANGSU PROVINCE
AOD MODIS Temporal Change Spatial Autocorrelation Gravity Model Driving Factor
2018/5/14
Aerosol Optical Depth (AOD) is of great value for studying air mass and its changes. In this paper, we studied the spatial-temporal changes of AOD and its driving factors based on spatial autocorrelat...
STUDY OF MAOWUSU SANDY LAND VEGETATION COVERAGE CHANGE BASED ON MODIS NDVI
Normalized Differential Vegetation Index Vegetation Coverage Maowusu Sandy Land Maximum Value Composite Pearson Correlation Coefficient Inverse Distance Weighting
2018/5/16
This paper selected 2006-2016 MODIS NDVI data with a spatial resolution of 500m and time resolution of 16d, got the 11 years’ time series NDVI data of Maowusu sandy land through mosaicking, projection...
UNDERSTANDING THE SPATIO-TEMPORAL PATTERN OF FIRE DISTURBANCE IN THE EASTERN MONGOLIA USING MODIS PRODUCT
Spatio-Temporal Pattern Fire Disturbance Eastern Mongolia MODIS Product Natural Level
2018/5/16
Fire disturbance plays an important role in maintaining ecological balance, biodiversity and self-renewal. In this paper, the spatio-temporal pattern of fire disturbances in eastern Mongolia are studi...
基于MODIS EVI时序数据的江汉平原油菜种植分布信息提取
MODIS EVI 时间序列 油菜面积 江汉平原
2018/4/10
油菜是我国主要的食用油料作物。及时、准确地获取油菜种植分布信息对油菜长势监测、估产以及灾情评估具有十分重要的意义。以江汉平原为研究区,利用250 m空间分辨率的MODIS EVI时序数据,以TM数据作为野外采样数据与MODIS EVI数据之间的过渡数据,间接提取MODIS EVI数据农作物的训练样本; 通过分析江汉平原油菜和冬小麦的EVI光谱特征及物候信息,建立油菜种植面积提取模型; 采用多次阈值...
基于MODIS数据的东江流域云干扰时空特征分析
东江流域 MODIS 云标记 云干扰
2018/4/10
为在更高精度水平上分析植被指数时空变化特征,增强去云降噪环节的针对性和科学性,以东江流域2001—2015年间MOD13Q1产品中的云标记信息为数据源,利用地理信息系统空间分析方法,分别从云干扰概率及其空间分布、云干扰像元消除率及其空间分布和云干扰持续时长季节差异3个方面分析了东江流域云干扰时空特征。结果表明,该流域整体云干扰概率随合成时段加长而迅速降低; 新增云干扰像元消除率随合成时段加长而先增...
叶面积指数(leaf area index,LAI)是影响植被蒸腾、降水截留和能量交换的关键参数,是生态模型和陆面过程模型的重要输入参数。目前,全球许多机构基于多种遥感数据,采用不同的反演方法得到了多种LAI产品,MODIS,CYCLOPES和GLASS是其中时空分辨率较高的3种。以植被类型多样的韩江流域为对象,通过分析这3种LAI产品的空间和时间一致性,得到以下结论: ①CYCLOPES LAI...
RSTVOLC implementation on MODIS data for monitoring of thermal volcanic activity
Etna MODIS hot spots RSTVOLC
2015/8/27
An optimized configuration of the Robust Satellite Technique (RST) approach was developed within the framework of the ‘LAVA’ project. This project is funded by the Italian Department of Civil Protecti...