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科研机构
北京大学 [163]
内容类型
其他 [98]
期刊论文 [62]
会议论文 [3]
发表日期
2017 [12]
2016 [21]
2015 [18]
2014 [9]
2013 [9]
2012 [12]
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专题:北京大学
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城市形态的分维估算与分形判定
期刊论文
地理科学进展, 2017
陈彦光
收藏
  |  
浏览/下载:8/0
  |  
提交时间:2017/12/03
城市形态
分形
分维
自仿射
盒子计数法
多分形
标度区
urban form
fractals
fractal dimension
self-affinity
box-counting method
multifractals
scaling range
Estimating structural parameters of agricultural crops from ground-based multi-angular digital images with a fractional model of sun and shade components
期刊论文
AGRICULTURAL AND FOREST METEOROLOGY, 2017
Mu, Xihan
;
Hu, Ronghai
;
Zeng, Yelu
;
McVicar, Tim R.
;
Ren, Huazhong
;
Song, Wanjuan
;
Wang, Yuanyuan
;
Casa, Raffaele
;
Qi, Jianbo
;
Xie, Donghui
;
Yan, Guangjian
收藏
  |  
浏览/下载:6/0
  |  
提交时间:2017/12/03
Leaf area index
Leaf angle distribution
Bidirectional gap fraction
Sun and shade leaves and soil
Field measurement
Canopy reflectance
LEAF-AREA INDEX
DIRECTIONAL BRIGHTNESS TEMPERATURE
SIZE ANALYSIS THEORY
VEGETATION COVER
HEMISPHERICAL PHOTOGRAPHY
PLANT CANOPIES
ROW CROPS
EXTINCTION COEFFICIENT
BROADLEAF CANOPIES
ANGLE DISTRIBUTION
An Extension of the Alpha Approximation Method for Soil Moisture Estimation Using Time-Series SAR Data Over Bare Soil Surfaces
期刊论文
IEEE GEOSCIENCE AND REMOTE SENSING LETTERS, 2017
He, Lian
;
Qin, Qiming
;
Panciera, Rocco
;
Tanase, Mihai
;
Walker, Jeffrey P.
;
Hong, Yang
收藏
  |  
浏览/下载:5/0
  |  
提交时间:2017/12/03
Bare surface
soil moisture
synthetic aperture radar (SAR)
time series
SCATTERING MODEL
RADAR DATA
RETRIEVAL
ROUGHNESS
Algorithm Development for Land Surface Temperature Retrieval: Application to Chinese Gaofen-5 Data
期刊论文
REMOTE SENSING, 2017
Chen, Yuanyuan
;
Duan, Si-Bo
;
Ren, Huazhong
;
Labed, Jelila
;
Li, Zhao-Liang
收藏
  |  
浏览/下载:5/0
  |  
提交时间:2017/12/03
land surface temperature
land surface emissivity
split-window
Gaofen-5
SPLIT-WINDOW ALGORITHMS
MOISTURE STATUS
SATELLITE DATA
EMISSIVITY
INDEX
WATER
EVAPOTRANSPIRATION
PRODUCTS
DROUGHT
SPACE
A simple temperature domain two-source model for estimating agricultural field surface energy fluxes from Landsat images
期刊论文
JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES, 2017
Yao, Yunjun
;
Liang, Shunlin
;
Yu, Jian
;
Chen, Jiquan
;
Liu, Shaomin
;
Lin, Yi
;
Fisher, Joshua B.
;
McVicar, Tim R.
;
Cheng, Jie
;
Jia, Kun
;
Zhang, Xiaotong
;
Xie, Xianhong
;
Jiang, Bo
;
Sun, Liang
收藏
  |  
浏览/下载:7/0
  |  
提交时间:2017/12/03
SENSIBLE HEAT-FLUX
PRIESTLEY-TAYLOR PARAMETER
BALANCE CLOSURE PROBLEM
LEAF-AREA INDEX
EDDY-COVARIANCE
DAILY EVAPORATION
TERRESTRIAL EVAPOTRANSPIRATION
RADIOMETRIC TEMPERATURE
EXPERIMENTAL-DESIGN
METEOROLOGICAL DATA
Differences in estimating terrestrial water flux from three satellite-based Priestley-Taylor algorithms
期刊论文
INTERNATIONAL JOURNAL OF APPLIED EARTH OBSERVATION AND GEOINFORMATION, 2017
Yao, Yunjun
;
Liang, Shunlin
;
Yu, Jian
;
Zhao, Shaohua
;
Lin, Yi
;
Jia, Kun
;
Zhang, Xiaotong
;
Cheng, Jie
;
Xie, Xianhong
;
Sun, Liang
;
Wang, Xuanyu
;
Zhang, Lilin
收藏
  |  
浏览/下载:6/0
  |  
提交时间:2017/12/03
Latent heat of evaporation
Priestley-Taylor algorithm
Vegetation index
Water constraints
LATENT-HEAT FLUX
LAND-SURFACE EVAPORATION
ENERGY-BALANCE CLOSURE
EDDY-COVARIANCE
EVAPOTRANSPIRATION ALGORITHM
CARBON-DIOXIDE
IN-SITU
MODIS
MODELS
CHINA
Convergence rates and W-1,W-P estimates in homogenization theory of Stokes systems in Lipschitz domains
其他
2017-01-01
Xu, Qiang
收藏
  |  
浏览/下载:9/0
  |  
提交时间:2017/12/03
Homogenization
Stokes systems
Convergence rates
Lipschitz domains
W-1,W-p estimates
PERIODIC HOMOGENIZATION
ELLIPTIC-SYSTEMS
DIRICHLET PROBLEM
OPERATOR
COEFFICIENTS
Efficient estimation of non parametric simultaneous equations models
其他
2017-01-01
Tu, Y.
收藏
  |  
浏览/下载:5/0
  |  
提交时间:2017/12/03
Instrumental variables
local polynomial regression
non parametric additive models
structural models
NONPARAMETRIC REGRESSION-MODELS
Small area estimation strategies for large population surveys: acomparison of design and model-based methods
其他
2017-01-01
Li, Zhaonan
;
Xu, Xinyi
;
Lu, Bo
收藏
  |  
浏览/下载:3/0
  |  
提交时间:2017/12/03
Direct estimate
synthetic estimate
composite estimate
benchmarking
Bayesian hierarchical modeling
Ohio medicaid assessment survey
ERROR
A SUPERCONVERGENT L-infinity-ERROR ESTIMATE OF RT1 MIXED METHODS FOR ELLIPTIC CONTROL PROBLEMS WITH AN INTEGRAL CONSTRAINT
其他
2017-01-01
Tang, Yuelong
;
Hua, Yuchun
收藏
  |  
浏览/下载:6/0
  |  
提交时间:2017/12/03
Elliptic equations
optimal control problems
superconvergence
mixed finite element methods
postprocessing
FINITE-ELEMENT APPROXIMATION
EQUATIONS
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