搜索结果: 1-12 共查到“long term trends”相关记录12条 . 查询时间(0.181 秒)
Characterization and long-term trends of hypoxia in the northern Gulf of Mexico: Does the science support the action plan?
long-term trends of hypoxia the northern Gulf of Mexico
2016/5/18
We update and reevaluate the scientific information on the distribution, history, and causes of continental
shelf hypoxia that supports the 2001 Action Plan for Reducing, Mitigating, and Controlling ...
Long-term trends in f0 F2 over Grahamstown using Neural Networks
Solar activity magnetic activity
2015/9/25
Many authors have claimed to have found long-term trends in f0 F2 , or the lack thereof, for different stations. Such investigations usually involve gross assumptions about the variation of f0 F2 with...
Long-term trends in the ionosphere and upper atmosphere parameters
atmosphere parameters ionosphere
2015/9/14
The first part of the paper is directed to the investigation of the practical importance of possible longterm trends in the F2-layer for ionospheric prediction models. Using observations of about 50 d...
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...
Identifying Critical Fish Habitat and Long-term Trends in Fish Abundances in the Hudson River Estuary
Fish abundances Hudson River estuary Estuaries Critical habitat
2014/12/9
The Hudson River estuary (HRE) is a well monitored aquatic resource and much secondary data exist for this system. We developed two objectives based on accessible HRE aquatic data. The first objective...
Long-term trends of men’s co-residence with children in England and Wales
childlessness family fatherhood parenthood
2014/11/26
Background: Increasing numbers of childless men as well as fathers with reduced or no contact with their children have sparked concern about an erosion of fatherhood. Although the general trend is und...
Long-term trends of black carbon and sulphate aerosol in the Arctic: changes in atmospheric transport and source region emissions
black carbon sulphate aerosol the Arctic atmospheric transport source region emissions
2010/10/11
To reveal the contribution of different source regions on these trends, we used a cluster analysis of the output of the Lagrangian particle dispersion model FLEXPART run backward in time from the meas...
Impact of prescribed SSTs on climatologies and long-term trends in CCM simulations
prescribed SSTs climatologies long-term trends CCM simulations
2009/8/25
Chemistry-Climate Model (CCM) simulations are commonly used to project the past and future development of the dynamics and chemistry of the stratosphere, and in particular the ozone layer. So far, CCM...
Employment in health services：long-term trends and projections
health services long-term trends projections
2009/5/19
Demand for health services is expected to grow in response to the increasing number of elderly people; but growth prospects to 1995 for the industry's wage and salary workers are uncertain because of ...
Winter climate affects long-term trends in stream water nitrate in acid-sensitive catchments in southern Norway
Winter climate acid-sensitive catchments stream water nitrate
2009/4/29
Controls of stream water NO3 in mountainous and forested catchments are not thoroughly understood. Long-term trends in stream water NO3 are positive, neutral and negative, often apparently independent...
A possible decline in sperm counts in men and its potential relation to exposure to environmental contaminants are subjects of a broad discussion. Whereas data for human research in this area are ...
Long-term trends in eutrophication and nutrients in the coastal zone
eutrophication nutrients coastal zone
2014/4/30
We used high-resolution paleoecological records of environmental change to study the rate and magnitude of
eutrophication over the last century in two contrasting coastal ecosystems. A multiproxy app...