نتایج جستجو برای: precipitation meteorology

تعداد نتایج: 63499  

2006
Charles A. Doswell Robert A. Maddox

Diagnostic meteorology is intertwined with the role of humans in forecasting, as discussed in D86a. Truly, weather forecasting is part of the science of meteorology, but recent history has created the illusion of a dichotomy between them. This paper attempts to illustrate how we envision diagnostic meteorology should proceed. In the process, we shall provide a basis for understanding why the ga...

Journal: :Chaos 2002
Adam H. Sobel

Water vapor is a constituent of the tropical atmosphere which, though to a significant extent locally controlled by vertical advection, precipitation, and surface evaporation, is also affected by horizontal advection. Water vapor affects the flow in turn, because a humid atmosphere supports deep, precipitating convection more readily than a dry atmosphere. Precipitation heats the atmosphere, an...

2013
Thomas SPANGEHL

The evaluation of dynamical ensemble forecast systems requires a solid validation of basic processes such as the global atmospheric water and energy cycle. The value of any validation approach strongly depends on the quality of the observational data records used. Current approaches utilize in situ measurements, remote sensing data and reanalyses. Related data records are subject to a number of...

2015
Julian Mayes Matthew Fontaine

Formed in 1983 and currently with 90 members, the Special Interest Group for the History of Meteorology and Physical Oceanography (History Group) encourages the study of the history and heritage of meteorology and physical oceanography. It provides a forum for discussion of all aspects of the history of meteorology and physical oceanography, co-operates with similar institutions and publishes a...

Journal: :Entropy 2018
Tue M. Vu Ashok K. Mishra Goutam Konapala

Understanding the teleconnections between hydro-meteorological data and the El Niño–Southern Oscillation cycle (ENSO) is an important step towards developing flood early warning systems. In this study, the concept of mutual information (MI) was applied using marginal and joint information entropy to quantify the linear and non-linear relationship between annual streamflow, extreme precipitation...

2010
Amos P.K. Tai Loretta J. Mickley Daniel J. Jacob

We applied a multiple linear regression (MLR) model to study the correlations of total PM2.5 and its components with meteorological variables using an 11-year (1998e2008) observational record over the contiguous US. The data were deseasonalized and detrended to focus on synoptic-scale correlations. We find that daily variation in meteorology as described by the MLR can explain up to 50% of PM2....

Journal: :Science in China. Series C, Life sciences 2005
Xiaodong Zeng Aihui Wang Gang Zhao Samuel S P Shen Xubin Zeng Qingcun Zeng

Based on the physico-biophysical considerations, mathematical analysis and some approximate formulations generally adopted in meteorology and ecology, an ecological dynamic model of grassland is developed. The model consists of three interactive variables, i.e. the biomass of living grass, the biomass of wilted grass, and the soil wetness. The major biophysical processes are represented in para...

2017
Yanto Ben Livneh Balaji Rajagopalan

We describe a gridded daily meteorology dataset consisting of precipitation, minimum and maximum temperature over Java Island, Indonesia at 0.125°×0.125° (~14 km) resolution spanning 30 years from 1985-2014. Importantly, this data set represents a marked improvement from existing gridded data sets over Java with higher spatial resolution, derived exclusively from ground-based observations unlik...

Journal: :IEEE Trans. Geoscience and Remote Sensing 1997
Rongrui Xiao V. Chandrasekar

Rainfall estimation based on radar measurements has been an important topic in radar meteorology for more than four decades. This research problem has been addressed using two approaches, namely a) parametric estimates using reflectivity-rainfall relation (Z-R relation) or equations using multiparameter radar measurements such as reflectivity, differential reflectivity, and specific propagation...

2014
Ross I. Maidment David Grimes Richard P. Allan Marc Stringer Tim Hewison Rob Roebeling Emily Black

African societies are dependent on rainfall for agricultural and other water-dependent activities, yet rainfall is extremely variable in both space and time and reoccurring water shocks, such as drought, can have considerable social and economic impacts. To help improve our knowledge of the rainfall climate, we have constructed a 30 year (1983–2012), temporally consistent rainfall data set for ...

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