نتایج جستجو برای: synoptic pattern
تعداد نتایج: 352775 فیلتر نتایج به سال:
Abstract In this study, we investigated the interdecadal change in tropical cyclone (TC) activity over western North Pacific (WNP) early 2010s. At boundary of WNP, TC exhibited a meridional tripole pattern. contrast to reduced northern South China Sea (SCS) and Taiwan, increased southern SCS north Shanghai after Herein, focused on WNP. Over last decade, frequent occurrences have affected East C...
This study examines the dynamic feedbacks generated from synoptic eddies that contribute to maintenance and propagation of intraseasonal North Atlantic Oscillation (ISNAO) which has significant 20?60-day variability features clearly westward slightly northward propagations. The ISNAO-related eddy-vorticity fluxes induced forcing positive in-phase feedback upstream ISNAO. Due accumulated shearin...
The modulation of the North Pacific storm track by tropical convection on intraseasonal time scales (30– 90 days) in boreal winter (December–March) is investigated using the NCEP–NCAR reanalysis and NOAA satellite outgoing longwave radiation (OLR) data. Multivariate empirical orthogonal function (MEOF) analysis and case compositing based upon the principal components (PCs) of the EOFs reveal su...
OF DISSERTATION Moist Synoptic Transport of CO2 Along Midlatitude Storm Tracks, Transport Uncertainty, and Implications for Flux Estimation Mass transport along moist isentropic surfaces on baroclinic waves represents an important component of the atmospheric heat engine that operates between the equator and poles. This is also an important vehicle for tracer transport, and is correlated with e...
We present Particle Flurries, a case study of our efforts toward a synoptic visualization of pulsatile 3D flow that strives to show viewers all flow features simultaneously. The contributions are: a flow visualization technique for stereo viewing that quickly shows particle flow details throughout a volume; a novel poisson-based seeding strategy that prevents redundancy in the particle visualiz...
In the vast Low Nutrient Low-Chlorophyll (LNLC) Ocean, the vertical nutrient supply from the subsurface to the sunlit surface waters is low, and atmospheric contribution of nutrients may be one order of magnitude greater over short timescales. The short turnover time of atmospheric Fe and N supply (<1month for nitrate) further supports deposition being an important source of nutrients in LNLC r...
Observed regional rainfall characteristics can be analyzed by examining both the frequency and intensity of different categories of rainfall. A complementary approach is to consider rainfall characteristics associated with regional synoptic regimes. These two approaches are combined here to examine daily rainfall characteristics over the Australian region, providing a target for model simulatio...
Introduction Conclusions References Tables Figures Back Close Full Screen / Esc Abstract Introduction Conclusions References Tables Figures Back Close Full Screen / Esc Printer-friendly Version Interactive Discussion EGU Abstract An airborne instrument that measures altitude temperature profiles is ideally suited for the task of characterizing statistical properties of the vertical displacement...
Synoptic analysis of the torrential on Day 21, 1398 (Case study: Zahedan and Qeshm) Abstract Rainfall is the most important phenomenon or feature of the environment and so far many studies have been done about its causes. In any place, rainfall occurs when humid air and climbing cause are provided. Both of these conditions are provided by the circulation pattern. The study area is affe...
1. introduction the position of iran in the subtropical region that has made its arid and semiarid climate and the topographic diversity changes this trend of climate. therefore, climate hazards such as frost, flood, dust storm, drought, temperature anomalies, heavy rainfall, avalanches, snow, sleet, etc occur in iran. the northwest of iran experiences the above conditions following the arrival...
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