نتایج جستجو برای: climate indices

تعداد نتایج: 250014  

2011

The Meteorological and Hydrological Service in Zagreb has been monitoring the values of climatological elements and phenomena in the atmosphere and on the ground for a long period of time. A data bank has been established of exceptional value which is bcing used for research in natural sciences. The Forest Research Institute, Jastrebarsko, has produced the Pluviothermal climate favourableness i...

Journal: :desert 2005
gh. r. zehtabian h. ahmadi h. khosravi a. rafiei emam

desertification process as a great problem affects most of the countries in the world specially developing countries. this process has a high rate in arid and semi-arid countries such as iran. the main objective of this research was to investigate land degradation status and desertification mapping of kashan area. different studies have been carried out in the world in order to assess desertifi...

Introduction Climate change is the greatest price society is paying for decades of environmental neglect. The impact of global warming is most visible in the rising threat of climate-related natural disasters. Globally, meteorological disasters more than doubled, from an average of forty-five events a year to almost 120 events a year (Vinod, 2017). Climate change refers to changes in the distr...

Journal: :Memorias do Instituto Oswaldo Cruz 2008
Margareth Regina Dibo Ana Patricia Chierotti Mariana Silveira Ferrari Adriano Luis Mendonça Francisco Chiaravalloti Neto

The purpose of this study was to examine the relationship between Aedes aegypti egg and adult density indices, dengue fever and climate in Mirassol, state of São Paulo, Brazil, between November 2004-November 2005. Weekly collections of adults and eggs were made using, respectively, manual aspirators and oviposition traps that produced four entomological indices (positivity and average of female...

Desertification phenomenon is not devoted to an especial climate, although its role in arid and semi-arid areas is clearer than other regions. In this research, four criterions of the wind erosion, soil, vegetation cover and climate have been considered for evaluating desertification potential and mapping of desertification intensity using to IMDPA model in ZAHAK Sistan region. Considering to e...

2009
C. Franzke

The multi-scale nature and climate noise properties of teleconnection indices are examined by using the Empirical Mode Decomposition (EMD) procedure. The EMD procedure allows for the analysis of non-stationary time series to extract physically meaningful intrinsic mode functions (IMF) and nonlinear trends. The climatologically relevant monthly mean teleconnection indices of the North Atlantic O...

Journal: :Sustainability 2023

Extreme climate events are becoming increasingly frequent and intense due to the global change. The present investigation aims ascertain nature of climatic variables association with vegetation such as Leaf Area Index (LAI) Normalized Difference Vegetation (NDVI). In this study, impact change respect dynamics has been investigated over Indian state Haryana based on monthly yearly time-scale dur...

2015
LIANG NING RAYMOND S. BRADLEY

The relationship between winter climate extremes across the northeasternUnited States and adjacent parts of Canada and some important modes of climate variability are examined to determine how these circulation patterns are related to extreme events. Linear correlations between 15 extreme climate indices related to winter daily precipitation, maximum and minimum temperature, and three dominant ...

2010
Karsten Steinhaeuser Nitesh V. Chawla Auroop R. Ganguly

The analysis of climate data has relied heavily on hypothesis-driven statistical methods, while projections of future climate are based primarily on physics-based computational models. However, in recent years a wealth of new datasets has become available. Therefore, we take a more data-centric approach and propose a unified framework for studying climate, with an aim towards characterizing obs...

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