نتایج جستجو برای: gcms hplc

تعداد نتایج: 34938  

2015
Shengli Huang Shuguang Liu Jinxun Liu Devendra Dahal Claudia Young Brian Davis Terry L Sohl Todd J Hawbaker Ben Sleeter Zhiliang Zhu

BACKGROUND Climate change and the concurrent change in wildfire events and land use comprehensively affect carbon dynamics in both spatial and temporal dimensions. The purpose of this study was to project the spatial and temporal aspects of carbon storage in the Greater Yellowstone Ecosystem (GYE) under these changes from 2006 to 2050. We selected three emission scenarios and produced simulatio...

2007
JOHN R. LANZANTE MELISSA FREE

In comparisons of radiosonde vertical temperature trend profiles with comparable profiles derived from selected Intergovernmental Panel on Climate Change (IPCC) Fourth Assessment Report (AR4) general circulation models (GCMs) driven by major external forcings of the latter part of the twentieth century, model trends exhibit a positive bias relative to radiosonde trends in the majority of cases ...

2017
Xiang Gao Adam Schlosser

Regional climate models (RCMs) in general can simulate the characteristics of heavy/extreme precipitation more accurately than general circulation models (GCMs) as a result of more realistic representation of topography and mesoscale processes. An analogue method of statistical downscaling, which identifies the resolved large-scale atmospheric conditions associated with heavy precipitation, is ...

2017
Mukhtar Ahmed Claudio O. Stöckle Roger Nelson Stewart Higgins

Simulations of crop yields under climate change are subject to uncertainties whose quantification is important for effective use of projected results for adaptation and mitigation strategies. In the US Pacific Northwest (PNW), studies based on single crop models and weather projections downscaled from a few general circulation models (GCM) have indicated mostly beneficial effects of climate cha...

2007
DÁITHÍ A. STONE MYLES R. ALLEN FRANK SELTEN MICHAEL KLIPHUIS PETER A. STOTT

The detection and attribution of climate change in the observed record play a central role in synthesizing knowledge of the climate system. Unfortunately, the traditional method for detecting and attributing changes due to multiple forcings requires large numbers of general circulation model (GCM) simulations incorporating different initial conditions and forcing scenarios, and these have only ...

2015
Yiannis Panagopoulos Philip W. Gassman Raymond W. Arritt Daryl E. Herzmann Todd D. Campbell Adriana Valcu Manoj K. Jha Catherine L. Kling Raghavan Srinivasan Michael White Jeffrey G. Arnold

Nonpoint source pollution from agriculture is the main source of nitrogen and phosphorus in the stream systems of the Corn Belt region in the Midwestern US. The eastern part of this region is comprised of the Ohio-Tennessee River Basin (OTRB), which is considered a key contributing area for water pollution and the Northern Gulf of Mexico hypoxic zone. A point of crucial importance in this basin...

Journal: :Environmental Modelling and Software 2008
Masoud Hessami Philippe Gachon Taha B. M. J. Ouarda André St-Hilaire

Many impact studies require climate change information at a finer resolution than that provided by Global Climate Models (GCMs). In the last 10 years, downscaling techniques, both dynamical (i.e. Regional Climate Model) and statistical methods, have been developed to obtain fine resolution climate change scenarios. In this study, an automated statistical downscaling (ASD) regression-based appro...

2014
Krijn P. Paaijmans Justine I. Blanford Robert G. Crane Michael E. Mann Liang Ning Kathleen V. Schreiber Matthew B. Thomas

The potential impact of climate warming on patterns of malaria transmission has been the subject of keen scientific and policy debate. Standard climate models (GCMs) characterize climate change at relatively coarse spatial and temporal scales. However, malaria parasites and the mosquito vectors respond to diurnal variations in conditions at very local scales. Here we bridge this gap by downscal...

Journal: :Environmental Research Letters 2021

Abstract Surface soil moisture (SSM) is a key factor for water and heat exchanges between land surface the atmosphere. It also important to resources, agriculture, ecosystems. In backdrop of global warming, SSM variations potential causes are not well-known at regional scales. Based on (SM) data from GLDAS-Noah 16 climate models (GCMs) selected 25 GCMs in CMIP5, we analyzed spatial distribution...

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