نتایج جستجو برای: large scale climatic signals

تعداد نتایج: 1591126  

Journal: Desert 2016
A. Azareh A. Malekian A. Salajegheh Gh.R. Zehtabian N. Boroomand

Climate change is found to be the most important global issue in the 21st century, so to monitor its trend is of great importance. Atmospheric General Circulation Models because of their large scale computational grid are not able to predict climatic parameters on a point scale, so small scale methods should be adapted. Among downscaling methods, statistical methods are used as they are easy to...

2008
Hanno Sandvik Kjell Einar Erikstad H. Sandvik

In the light of the predicted changes in climate as a consequence of global warming, it is a major concern how animal species will respond to altered meteorological and oceanographic conditions. Seabirds constitute a diverse group of marine top predators which have relatively low fecundity and high annual survival rates. In order to predict effects of climate change, it is a necessary precondit...

2007
Laura Bertolani Massimo Bollasina Gianni Tartari

With meteorological data from high altitude surface stations and gridded dataset from NCEP/NCAR Reanalysis, a biennial oscillation over the Eastern Highland Himalayas from 1980 to 1998 is described. This variability concerns air temperature, precipitation, geopotential and wind speed. Evidence is given on the connections between local data and large-scale circulation patterns. The most remarkab...

Journal: :desert 0
gh.r. zehtabian faculty of natural resources, university of tehran, karaj, iran a. salajegheh faculty of natural resources, university of tehran, karaj, iran a. malekian faculty of natural resources, university of tehran, karaj, iran n. boroomand faculty of soil science engineering, shahid bahonar university of kerman, kerman, iran. a. azareh faculty of natural resources, university of tehran, karaj, iran

climate change is found to be the most important global issue in the 21st century, so to monitor its trend is of great importance. atmospheric general circulation models because of their large scale computational grid are not able to predict climatic parameters on a point scale, so small scale methods should be adapted. among downscaling methods, statistical methods are used as they are easy to...

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