نتایج جستجو برای: abrupt change

تعداد نتایج: 601788  

Journal: :Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences 2012

Journal: :Nature Geoscience 2021

Ice core archives are well suited for reconstructing rapid past climate changes at high latitudes. Despite this, few records currently exist from coastal Greenlandic ice caps due to their remote nature, limiting our long-term understanding of maritime and variability across this rapidly changing Arctic region. Here, we reconstruct regionally representative glacier surface mass balance over the ...

Journal: :تحقیقات آب و خاک ایران 0
پریسا سادات آشفته دانشجوی دکتری مهندسی منابع آب، پردیس کشاورزی و منابع طبیعی دانشگاه تهران، کرج، ایران امید بزرگ حداد دانشیار گروه مهندسی آبیاری و آبادانی، پردیس کشاورزی و منابع طبیعی دانشگاه تهران، کرج

in this study, long-term trends and abrupt changes of hydro-climatic variables was investigated in the observed period 1971-2000 for aidoghmoush basin using mann-kendall nonparametric test and cumulative curve of climatic variables-runoff, respectively. results show decrease trends for rainfall and runoff and increase trend for temperature by the mann-kendall test with a confidence level of 99%...

Journal: :Proceedings of the National Academy of Sciences of the United States of America 2008
Vasilis Dakos Marten Scheffer Egbert H van Nes Victor Brovkin Vladimir Petoukhov Hermann Held

In the Earth's history, periods of relatively stable climate have often been interrupted by sharp transitions to a contrasting state. One explanation for such events of abrupt change is that they happened when the earth system reached a critical tipping point. However, this remains hard to prove for events in the remote past, and it is even more difficult to predict if and when we might reach a...

Journal: :Environmental Communication-a Journal of Nature and Culture 2021

Following the release of a 2018 IPCC report, numerous news media announced we have only “12 years” to avoid abrupt, catastrophic climate change. This experiment tested influence this change “deadline-ism” message in article on participant perceptions and engagement with A presenting increased threat support for government prioritizing change, compared control condition. It also sense collective...

2017
Jian Huang Jing Li

Climate change has changed numerous species phenologies. Understanding the asynchronous responses between pest insects and host plants to climate change is helpful in improving integrated pest management. It is necessary to use long-term data to analyze the effects of climate change on cotton bollworm and wheat anthesis. Data for cotton bollworm, wheat yield, and wheat anthesis collected since ...

Journal: :IJMSTR 2013
Miltiadis Alamaniotis Lefteri H. Tsoukalas

Fast processing of consecutive measurements and accurate detection of abrupt changes is of primary importance for online monitoring of radiation. In this paper, a hybrid anticipatory system is discussed together with its application to real time radiation monitoring. The system utilizes the synergism of an artificial neural network (ANN) with support vector machines (SVM) to tackle the problem ...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید