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MISSION ADAPTIVE UAS CAPABILITIES FOR EARTH SCIENCE AND RESOURCE ASSESSMENT
remote sensing UAS autopilot flight control
2015/5/7
Unmanned aircraft systems (UAS) are important assets for accessing high risk airspace and incorporate technologies for sensor coordination, onboard processing, tele-communication, unconventional fli...
关于本人在地表空间做的光线光斑偏移实验及理论分析报告
激光笔 球面镜 真空石英管
2015/6/2
在地面上，我利用激光笔、球面镜、真空石英管等搭设实验平台，做了有关光斑移动的实验。在几天的观察下，可以看到光斑出现明显的偏移，最大偏移量达0.48米。房间的四周都是密闭的，可排除外界人为或风吹的影响。后来，我用凸透镜做实验，也证实了光斑的确是出现了偏移。难道地球真的拖动以太运动？难道100多年前迈克尔逊（Michelson）-莫雷(Morley)所做的那么精密的实验都观察不到的以太漂移就被我这么个...
Multi-site evaluation of the JULES land surface model using global and local data
global and local data land
2015/3/5
t. This study evaluates the ability of the JULES land
surface model (LSM) to simulate photosynthesis using local
and global data sets at 12 FLUXNET sites.
ASAM v2.7: a compressible atmospheric model with a Cartesian cut cell approach
compressible atmospheric model cell approach
2015/3/5
In this work, the fully compressible, threedimensional, nonhydrostatic atmospheric model called All
Scale Atmospheric Model (ASAM) is presented.
Assimilation of surface NO2 and O3 observations into the SILAM chemistry transport model
surface NO2 chemistry transport model
2015/3/5
This paper describes the assimilation of trace
gas observations into the chemistry transport model SILAM
(System for Integrated modeLling of Atmospheric coMposition) using the 3D-Var method. Assimil...
Testing the performance of state-of-the-art dust emission schemes using DO4Models field data
state-of-the-art DO4Models fi eld data
2015/3/5
西藏及西南三江深断裂构造格局新认识
怒江 深断裂 重磁场特征
2014/12/31
西藏和西南三江地区是青藏地区断裂构造最为复杂区域,历经数十年研究,对该区断裂构造的认识仍存在分歧.笔者以最新实测航磁数据并结合重力资料为基础,从重、磁场特征与地质构造研究相结合角度出发,新编制了西藏及西南三江地区的断裂构造格架图.研究结果表明,在西南三江流域的金沙江深断裂、澜沧江深断裂和怒江深断裂自南向北西延伸,没有与西藏地区的近东西向断裂呈弧形连接,而是一组独立存在的北西向断裂,这是在特提斯断裂...
基于AVO反演的频变流体识别方法
流体项 谱分解 先验信息
2014/12/31
研究表明流体引起衰减与频散往往表现为频变AVO现象.一些频散地震属性,例如纵波频散,已经证实为可靠的碳氢指示因子.为了更有效地识别流体,基于f-μ-ρ近似构建了新的流体因子Df,即频变流体项.该属性的反演首先需要连续小波变换(CWT)谱分解得到不同频带地震数据,通过去相关与先验约束来保证反演结果可靠性.模型试算证实了频变反射系数近似公式的精度可靠性,Df可以识别出强衰减介质所引起的频散现象.实际数...
基于入射角的两项流体阻抗反演方法
入射角方程 贝叶斯理论 小角度反演
2014/12/19
本文在孔隙弹性介质理论的指导下,基于入射角AVO近似方程推导了包含Russell流体项的两项AVO近似方程和相应的弹性阻抗方程,通过分析可知其精度符合反演要求.在贝叶斯理论框架下,建立了包含正则化约束的弹性阻抗反演方法,在此基础上直接提取Russell流体项.该方法可在缺少大角度叠前地震资料的情况下进行叠前直接反演得到流体因子,减少传统方法带来的累积误差.模型试算表明,该方法具有较好的准确度和稳定...
Evaluation of North Eurasian snow-off dates in the ECHAM5.4 atmospheric general circulation model
atmospheric general circulation model North Eurasian snow-off dates
2014/12/19
The timing of springtime end of snowmelt (snow-off date) in northern Eurasia in version 5.4 of the ECHAM5 atmospheric general circulation model (GCM) is evaluated through comparison with a snow-off da...
DYPTOP: a cost-efficient TOPMODEL implementation to simulate sub-grid spatio-temporal dynamics of global wetlands and peatlands
global wetlands peatlands
2014/12/19
Simulating the spatio-temporal dynamics of inundation is key to understanding the role of wetlands under past and future climate change. Earlier modelling studies have mostly relied on fixed prescribe...
A Lagrangian advection scheme with shape matrix (LASM) for solving advection problems
solving advection problems Lagrangian advection scheme
2014/12/19
A new Lagrangian advection scheme with shape matrix (LASM) is proposed to take advantage of the extreme low numerical diffusion of the Lagrangian methods. The tracer is discretized into finite parcels...
Predicting the response of the Amazon rainforest to persistent drought conditions under current and future climates: a major challenge for global land surface models
major challenge global land surface models
2014/12/19
While a majority of global climate models project drier and longer dry seasons over the Amazon under higher CO2 levels, large uncertainties surround the response of vegetation to persistent droughts i...
Coupling the high-complexity land surface model ACASA to the mesoscale model WRF
high-complexity land surface model mesoscale model WRF
2014/12/19
In this study, the Weather Research and Forecasting (WRF) model is coupled with the Advanced Canopy–Atmosphere–Soil Algorithm (ACASA), a high-complexity land surface model. Although WRF is a state-of-...
Tropical troposphere to stratosphere transport of carbon monoxide and long-lived trace species in the Chemical Lagrangian Model of the Stratosphere (CLaMS)
Tropical troposphere long-lived
2014/12/19
Variations in the mixing ratio of trace gases of tropospheric origin entering the stratosphere in the tropics are of interest for assessing both troposphere to stratosphere transport fluxes in the tro...