نتایج جستجو برای: statistical downscaling model sdsm

تعداد نتایج: 2375313  

2015
Ruben van Hooidonk Jeffrey Allen Maynard Yanyun Liu Sang-Ki Lee

Projections of climate change impacts on coral reefs produced at the coarse resolution (~1°) of Global Climate Models (GCMs) have informed debate but have not helped target local management actions. Here, projections of the onset of annual coral bleaching conditions in the Caribbean under Representative Concentration Pathway (RCP) 8.5 are produced using an ensemble of 33 Coupled Model Intercomp...

Journal: :Remote Sensing 2015
Reza Hosseini Nathaniel K. Newlands Charmaine B. Dean Akimichi Takemura

We present a flexible, integrated statistical-based modeling approach to improve the robustness of soil moisture data predictions. We apply this approach in exploring the consequence of different choices of leading predictors and covariates. Competing models, predictors, covariates and changing spatial correlation are often ignored in empirical analyses and validation studies. An optimal choice...

1999
JAMES MURPHY

An assessment is made of downscaling estimates of screen temperature and precipitation observed at 976 European stations during 1983–94. A statistical downscaling technique, in which local values are inferred from observed atmospheric predictor variables, is compared against two dynamical downscaling techniques, based on the use of the screen temperature or precipitation simulated at the neares...

2014
M J Owens T S Horbury R T Wicks S L McGregor N P Savani M Xiong

Advanced forecasting of space weather requires simulation of the whole Sun-to-Earth system, which necessitates driving magnetospheric models with the outputs from solar wind models. This presents a fundamental difficulty, as the magnetosphere is sensitive to both large-scale solar wind structures, which can be captured by solar wind models, and small-scale solar wind "noise," which is far below...

Journal: :Remote Sensing 2016
Ji Zhou Shaomin Liu Mingsong Li Wenfeng Zhan Ziwei Xu Tongren Xu

Most current statistical models for downscaling the remotely sensed land surface temperature (LST) are based on the assumption of the scale-invariant LST-descriptors relationship, which is being debated and requires an in-depth examination. Additionally, research on downscaling LST to high or very high resolutions (~10 m) is still rare. Here, a simple analytical model was developed to quantify ...

Journal: :آب و خاک 0
وستا افضلی مسعودرضا حسامی کرمانی

introduction: the phenomenon of climate change and its consequences is a familiar topic which is associated with natural disasters such as, flooding, hurricane, drought that cause water crisis and irreparable damages. studying this phenomenon is a serious warning regarding the earth’s weather change for a long period of time. materials and methods: in order to understand and survey the impacts ...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه شهید چمران اهواز - دانشکده مهندسی علوم آب 1393

drought is transient phenomenon , slow , repetitive and integral part of the climate of each region. drought begins with a substantial reduction in precipitation over the long-term average rainfall and over time, reduced soil moisture and surface and ground water resources will continue to decrease. this phenomenon is the most important in bakhtegan basin because of its importance in strategic ...

2014
D. Das J. Dy J. Ross Z. Obradovic A. R. Ganguly

Climate projections simulated by Global Climate Models (GCMs) are often used for assessing the impacts of climate change. However, the relatively coarse resolutions of GCM outputs often preclude their application to accurately assessing the effects of climate change on finer regional-scale phenomena. Downscaling of climate variables from coarser to finer regional scales using statistical method...

Journal: :Environmental Systems Research 2023

Abstract Background Projecting future streamflow variation or the hydrological impact of climate change plays a pivotal role in sustainable implication planning water resources management. Therefore, this study predicts potential change’s on components Upper Awash Basin (UAB). The applied statistical downscaling model (SDSM) to generate high-resolution data from output Canadian Second Generatio...

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