搜索结果: 1-15 共查到“工学 LAI”相关记录22条 . 查询时间(0.152 秒)
2017年7月27日下午，应甘肃省有色金属化学与资源利用重点实验室、化学化工学院邀请，美国布朗大学（Brown University）Lai-Sheng Wang教授来兰州大学进行学术交流并在第二化学楼101报告厅作了题为“Photoelectron Spectroscopy of Size-Selected Clusters: From Planar Structures to Borophen...
美国弗吉尼亚理工大学Jason Lai教授访问南京航空航天大学自动化学院（图）
美国弗吉尼亚理工大学 Jason Lai教授 南京航空航天大学自动化学院 航空电源 航空起动 发电系统 高速电机
2017/7/25
2017年7月3日上午，应自动化学院副院长阮新波教授邀请，IEEE Fellow、美国弗吉尼亚理工大学未来能源电子中心的主任、电气与计算机工程系Jason Lai教授来我院电气工程系交流访问，电气系中心组部分老师参加此次交流活动。阮新波教授首先针对我院电气工程系的发展历史、学科建设、科研项目、学术成果、重点实验室等方面进行了详细介绍。随后，Jason Lai教授参观多电飞机电气系统重点实验室、江苏...
CHARACTERIZING LAI SPATIAL AND TEMPORAL VARIABILITY USING A WAVELET APPROACH
Leaf Area Index Remote Sensing Variability Wavelet
2015/12/30
Vegetation plays an important role in the exchange of carbon dioxide, water, and energy between the land surface and the atmosphere. LAI, defined as one-half the total green leaf area per unit of grou...
叶面积指数(LAI)是陆地表层生态系统最重要的植被结构参数之一。近年来，利用LAI-2200观测草地叶面积指数的研究逐渐增多，但是其精度验证研究却很少。本文利用LAI-2200获取19个草地样地的有效植被面积指数(PAIe)，并利用草地孔隙率模型模拟LAI-2200测量值，然后与收获法得到的植被面积指数(PAI)进行比较，进而评估LAI-2200的测量精度，并分析草地聚集度系数(CI)的变化规律。...
The Method on Generating LAI Production by Fusing BJ-1 Remote Sensing Data and MODIS LAI Product
Vegetation Computer Simulation MODIS Fusion BJ-1 Remote Sensing Priori Knowledge
2015/11/23
LAI (Leaf Area Index) is the more important parameter of vegetation canopy, which can depict their growth course. So LAI inversion from remote sensing observations is the hot study field, especially f...
ESTIMATION OF LAI USING LIDAR REMOTE SENSING IN FOREST
LiDAR Leaf Area Index (LAI) Point density Vegetation Index Photosynthetically Active Radiation
2015/11/10
Light Detection and Ranging (LiDAR) has been used to extract surface information as it can acquire highly accurate object shape characteristics using geo-registered 3D-points. Therefore, LiDAR can be ...
为进一步提高冬小麦单产的估测精度和验证粒子滤波算法在同化研究中的适用性，以陕西省关中平原为研究区域，以叶面积指数（LAI）和条件植被温度指数（VTCI）为同化系统的状态变量，采用重采样粒子滤波算法同化CERES—Wheat模型模拟的与遥感数据反演的LAI和VTCI，并依据在不同类型样点应用最优同化LAI和VTCI构建的单产组合估测模型对2008—2014年冬小麦单产进行估测。结果表明，同化LAI具...
叶面积指数（LAI）是描述玉米冠层结构的重要参数之一，PROSAIL模型是常用于反演LAI的机理模型，能较为真实地反演植被冠层真实情况，但PROSAIL模型中使用的叶倾角分布函数假定区域内所有作物叶倾角分布是相同的，不能反映玉米植株真实的叶倾角分布情况。本研究以高分一号遥感影像和地基激光雷达点云数据作为数据源，充分利用地基激光雷达（TLS）在获取植被结构参数上的优势，通过体素化的方法对玉米叶片回波...
CYCLOPES PROTOTYPE V4 LAI, FAPAR AND FCOVER PRODUCTS DERIVED FROM VEGETATION AND AVHRR SENSORS: DESCRIPTION AND VALIDATION
description validation
2015/9/9
The CYCLOPES project aims at providing high level biophysical products such as LAI, fAPAR, fCover over
the globe at 1 km spatial resolution at a 10 days time interval. To provide continuity over long...
Ground measurements of photosynthetically active radiation (PAR) balance and leaf area index (LAI)
are required for validating, and sometimes calibrating biophysical products derived from satellite
...
CYCLOPES PROTOTYPE V4 LAI, FAPAR AND FCOVER PRODUCTS DERIVED FROM VEGETATION AND AVHRR SENSORS: DESCRIPTION AND VALIDATION
description validation
2015/9/8
The CYCLOPES project aims at providing high level biophysical products such as LAI, fAPAR, fCover over
the globe at 1 km spatial resolution at a 10 days time interval. To provide continuity over long...
RADIATIVE TRANSFER MODEL INVERSION BASED ON MULTI-TEMPORAL CHRIS/PROBA DATA FOR LAI ESTIMATION
Leaf area index Radiative transfer Dynamic canopy model
2015/9/8
Leaf area index (LAI) is a key variable for the understanding and modelling of several eco-physiological processes within a
vegetation canopy. The LAI could thus provide vital information for the man...
REMOTE SENSING ESTIMATION OF FOREST LAI IN CLOSE CANOPY SITUATION
LAI, forest spectral reflectance spectro-radiometer
2015/7/29
LEAF AREA INDEX RETRIEVAL USING IRS LISS-III SENSOR DATA AND VALIDATION OF MODIS LAI PRODUCT OVER INDIA
Remote Sensing Crop IRS Retrieval Comparison
2015/7/29
This paper reports results of an experiment LRVE (Leaf Area Index Retrieval and Validation Experiment) that was conducted over
agricultural areas of Central India during winter season of 2001-02, ai...
QUALITY ASSESSMENT OF GLOBAL MODIS LAI PRODUCT FOR THE REGIONAL SCALE APPLICATIONS
Remote Sensing Ecology Forestry Accuracy Quality Algorithm
2015/5/27
MODIS LAI product has been increasingly important for analyzing the process and productivity of terrestrial ecosystems at global scale. This study was aimed to assess the quality of global MODIS LAI p...