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Climate and Nutrient-Driven Regime Shifts of Cyanobacterial Communities in Low-Latitude Plateau Lakes
Climat Lakes Plateau cyanobacteria
2021/7/23
Cyanobacterial blooms that form in response to climate warming and nutrient enrichment in freshwater lakes have become a global environmental challenge.
Phosphorus supply pathways and mechanisms in shallow lakes with different regime
lakes carbon nitrogen (Fe(OOH)~P
2021/7/27
In order to better understand the pathways and mechanisms of phosphorus (P) supply under different regimes, 12 sampling sites from 4 basins of 2 lakes were studied seasonally from October 2017 to July...
Green Sahara's Ancient Rainfall Regime Revealed by Scientists
Green Sahara Ancient Rainfall Regime Scientists
2017/2/16
Rainfall patterns in the Sahara during the 6,000-year "Green Sahara" period have been pinpointed by analyzing marine sediments, according to new research led by a UA geoscientist.What is now the Sahar...
Regime dependent instability as a transition mechanism in large-scale atmospheric flow
regimes instability baroclinic
2015/9/30
Two apparently distinct approaches to studying the observed low frequency variability in the atmosphere have evolved over the past few years. One approach invokes multiple, recurrent flow regimes to e...
Central Limit Theorem for Excited Random Walk in the Recurrent Regime
Recurrent Regime Excited Random Walk
2015/9/29
We consider excited random walk on a strip. We assume that the
cookies are positive and that the total expected drift per site is less than 1/L where
L is the width of the strip. We prove a quenched...
Climate-Associated Regime Shifts Drive Decadal-Scale Variability in Recovery of North Atlantic Right Whale Population
Climate-Associated Decadal-Scale Variability North Atlantic Right Whale Population
2015/7/20
Despite an elevated mortality rate from lethal interactions with humans, the North Atlantic right whale population has continued to grow during the first decade of the new millennium. This unexpected ...
Changes in runoff regime. The Lomnice catchment case study
Bilan model hydrological regime mass curve method water balance
2015/3/13
Water distribution in landscape is essentially influenced by the nature of the catchment rainfall-runoff process. Firstly, this paper presents an analysis of trends in the rainfall-runoff regime of th...
Long-term trends of rainfall and runoff regime in upper Otava River basin
trend analysis rainfall runoff climate change human impact the Otava River basin Czech Republic
2015/2/4
The floods experienced recently in the Czech Republic gave rise to numerous discussions over the changed environment and related potential impacts on the rainfall and runoff processes. The main aim of...
A one-dimensional model intercomparison study of thermal regime of a shallow, turbid midlatitude lake
one-dimensional model intercomparison study turbid midlatitude lake
2014/12/12
Results of a lake model intercomparison study
conducted within the framework of Lake Model Intercomparison Project are presented.
A regime shift in Lake Superior ice cover, evaporation, and water temperature following the warm El Nin˜ o winter of 1997–1998
ice cover evaporation water temperature
2014/11/28
Significant trends in Lake Superior water temperature and ice cover have been observed in recent decades, and
these trends have typically been analyzed using standard linear regression techniques. Al...
A regime shift in Lake Superior ice cover, evaporation, and water temperature following the warm El Niño winter of 1997–1998
Lake Superior ice cover evaporation water temperature following the warm El Nino winter
2014/10/16
Significant trends in Lake Superior water temperature and ice cover have been observed in recent decades, and these trends have typically been analyzed using standard linear regression techniques. Alt...
Correlated Local Bending of a DNA Double Helix and Its Effect on DNA Flexibility in the Sub-Persistence-Length Regime
Correlated Local Bending a DNA Double Helix Effect on DNA Flexibility Sub-Persistence-Length Regime
2014/9/24
Mechanical characteristics of DNA in the sub-persistence-length (lP ≈150 base pairs) regime are vital to many of its biological functions but not well understood. Recent experimental studies in this r...
本文假定风险资产的价格满足马尔可夫调制的几何Lė；vy过程，其中市场利率、风险资产的平均回报率、波动率以及跳跃强度和幅度都依赖于市场的经济状态，这些经济状态由一连续时间马尔可夫链描述. 由于该模型下的市场是不完备的，在本文中我们首先采用局部风险最小化方法获得了欧式未定权益的最优套期保值策略. 接着，本文给出了一个具体的例子，得到了马尔科夫调制的几何布朗运动模型下的最优套期保值策略的数值结...
A LARGE DATA REGIME FOR NON-LINEAR WAVE EQUATIONS
A LARGE DATA REGIME NON-LINEAR WAVE EQUATIONS
2018/4/19
For semi-linear wave equations with null form non-linearities on R3+1, we exhibit an open set of initial data which are allowed to be large in energy spaces, yet we can still obtain global solutions i...
Branching diffusion in the super-critical regime
Branching diffusion the super-critical regime Probability
2012/7/11
We investigate the long-time evolution of branching diffusion processes (starting with a single particle) in inhomogeneous media. The qualitative behavior of the processes depends on the intensity of ...