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Parallel worlds: attribute-defined regions in global human geography
human geography regionalization geographic thought empiricism countries linguistic geography political geography interdisciplinary geography global geography
2015/1/9
Global human regionalization often depends heavily on conventions, especially the country model. Standardized “countries” are used as default regions, and influence other regionalizations as well. Pro...
Predictors of Primary Care Physicians Practicing in Medically Underserved and Rural Areas of Indiana
Primary Care Physicians Practicing Medically Underserved Rural Areas Indiana
2015/1/9
Purpose: This study examines whether Indiana physicians’ choices to practice in medically underserved and rural areas of Indiana are associated with select physician characteristics. Methods: Physicia...
Remote Sensing of Cyanobacteria in Case II Waters Using Optically Active Pigments, Chlorophyll a and Phycocyanin
Hyperspectral Remote Sensing Cyanobacteria Phycocyanin Chlorophyll a Blue-green Algae
2015/1/9
Nuisance blue-green algal blooms contribute to aesthetic degradation of water resources and produce toxins that can have serious adverse human health effects. Current field-based methods for detecting...
Comparing Spatial Measures of the Built Environment for Health Research
active living built environment greenness spatial analysis walkability
2015/1/9
Research on the association between health and the built environment often delineates environmental exposure using different spatial forms and distances surrounding points of interest, such as residen...
基于保辛算法的声波叠前逆时偏移
逆时偏移 辛算法 近似解析离散 数值频散
2014/12/31
叠前逆时偏移是目前成像精度最高的地震偏移方法之一,其实现过程中的一个重要步骤是数值求解全波方程,所以快速有效求解全波方程的数值算法对逆时偏移至关重要. 四阶近似解析辛可分Runge-Kutta (NSPRK) 方法是近年发展的一种具有高效率、高精度的数值求解波动方程的保辛差分方法, 能在粗网格条件下有效压制数值频散, 从而提高计算效率, 节省计算机内存需求量. 本文利用四阶NSPRK方法构造的基本...
A hybrid Eulerian–Lagrangian numerical scheme for solving prognostic equations in fluid dynamics
A hybrid Eulerian–Lagrangian numerical scheme solving prognostic equations
2014/12/12
A new hybrid Eulerian–Lagrangian numerical
scheme (HEL) for solving prognostic equations in fluid dynamics is proposed. The basic idea is to use an Eulerian as
well as a fully Lagrangian repre...
Multi-sensor cloud retrieval simulator and remote sensing from model parameters – Part 1: Synthetic sensor radiance formulation
Multi-sensor cloud retrieval simulator remote sensing
2014/12/12
In this paper we describe a general procedure for
calculating synthetic sensor radiances from variable output
from a global atmospheric forecast model.
An integrated assessment modeling framework for uncertainty studies in global and regional climate change: the MIT IGSM-CAM (version 1.0)
uncertainty studies global
2014/12/12
This paper describes a computationally efficient
framework for uncertainty studies in global and regional climate change.
Correction of approximation errors with Random Forests applied to modelling of cloud droplet formation
approximation errors Random Forests
2014/12/12
n atmospheric models, due to their computational
time or resource limitations, physical processes have to be
simulated using reduced (i.e. simplified) models.
The North American Carbon Program Multi-Scale Synthesis and Terrestrial Model Intercomparison Project – Part 1: Overview and experimental design
North American Carbon Program Multi-Scale Synthesis Terrestrial Model Intercomparison
2014/12/12
Terrestrial biosphere models (TBMs) have become
an integral tool for extrapolating local observations and understanding of land–atmosphere carbon exchange to larger
regions.
Automating the solution of PDEs on the sphere and other manifolds in FEniCS 1.2
other manifolds PDEs
2014/12/12
Differential equations posed over immersed manifolds are of particular importance in studying geophysical flows; for instance, ocean and atmosphere simulations
crucially rely on the capability ...
Accuracy of the zeroth- and second-order shallow-ice approximation – numerical and theoretical results
second-order shallow-ice Accuracy of the zeroth
2014/12/12
In ice sheet modelling, the shallow-ice approximation (SIA) and second-order shallow-ice approximation
(SOSIA) schemes are approaches to approximate the solution of the full Stokes equations governin...
Can we model observed soil carbon changes from a dense inventory? A case study over England and Wales using three versions of the ORCHIDEE ecosystem model (AR5, AR5-PRIM and O-CN)
model observed soil carbon changes inventory
2014/12/12
A widespread decrease of the topsoil carbon content was observed over England and Wales during the period
1978–2003 in the National Soil Inventory (NSI), amounting
to a carbon loss of 4.44 Tg yrW...
The SPRINTARS version 3.80/4D-Var data assimilation system: development and inversion experiments based on the observing system simulation experiment framework
SPRINTARS development inversion experiments
2014/12/12
We present an aerosol data assimilation system
based on a global aerosol climate model (SPRINTARSSpectral Radiation-Transport Model for Aerosol Species)
and a four-dimensional variational data assim...
Incorporating grassland management in ORCHIDEE: model description and evaluation at 11 eddy-covariance sites in Europe
Incorporating grassland management ORCHIDEE
2014/12/12
This study describes how management of grasslands is included in the Organizing Carbon and Hydrology in
Dynamic Ecosystems (ORCHIDEE) process-based ecosystem model designed for largescale application...