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Tuesday, November 24, 2020 | History

2 edition of interannual variability of atmospheric circulation statistics found in the catalog.

interannual variability of atmospheric circulation statistics

Abraham H Oort

interannual variability of atmospheric circulation statistics

  • 353 Want to read
  • 17 Currently reading

Published by Dept. Commerce, National Oceanic and Atmospheric Administration, Environmental Research Laboratories, Geophysical Fluid Dynamic Laboratory, for sale by the Supt. of Docs., U.S. Govt. Print. Off. in Princeton, N.J, Washington .
Written in English

    Subjects:
  • Atmospheric circulation -- Statistics,
  • Atmospheric circulation -- Charts, diagrams, etc

  • Edition Notes

    StatementAbraham H. Oort ; Geophysical Fluid Dynamics Laboratory
    SeriesNOAA professional paper ; 8, NOAA professional paper -- 8
    ContributionsEnvironmental Research Laboratories (U.S.), Geophysical Fluid Dynamics Laboratory (U.S.)
    The Physical Object
    Paginationiii, 76 p. :
    Number of Pages76
    ID Numbers
    Open LibraryOL13601588M

    On intraseasonal to interannual time scales, the climate of the United States is strongly affected by modes of atmospheric circulation variability like the North Atlantic Oscillation (NAO)/Northern Annular Mode (NAM), North Pacific Oscillation (NPO), and Pacific/North American Pattern (PNA). 7, 8, 9 These modes are closely linked to other. The interannual variability in the overturning over the last 40 years is found to be dominated by two coupled atmosphere-ocean modes. The first is related to the meridional motion of the intertropical convergence zone and the second to El Nino. Both modes have a strong influence on the sea level variability in the tropical Indo-Pacific Ocean. Interannual variability, global teleconnection, and potential predictability associated with the Asian Summer Monsoon K. M. Lau, K. M. Kim Climate and Radiation Branch NASA/Goddard Space Flight Center Greenbelt, MD and J. Y. Li Department of Atmospheric Sciences Seoul National University Seoul, Korea October, Interannual Variability Precipitation Amount hPa Geopotential Height Extreme Precipitation Event Circulation Type These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


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interannual variability of atmospheric circulation statistics by Abraham H Oort Download PDF EPUB FB2

This study examines the variability and long-term trends of atmospheric circulation over the Chukchi and Beaufort Seas using the ECMWF Interim Re-Analysis (ERA-Interim) for the period – Because of the mobility of the BSH through the year, EOF analysis is applied to the sea level pressure (SLP) field in order to investigate the Cited by: Get this from a library.

The interannual variability of atmospheric circulation statistics. [Abraham H Oort; Geophysical Fluid Dynamics Laboratory (U.S.),]. We speculate that interannual atmospheric circulation variability associated with SFW events may have a practical bearing upon weather and climate prediction.

Acknowledgments The study was supported by the NSF Climate and Large-Scale Dynamics Program under Grant ATM (under the U.S. CLIVAR Program) and NASA’s Living with a Star Cited by: This study examines seasonal AR variation and interannual variability of summertime ARs over the NWP by using both long-term (since ) global reanalysis and high-resolution historical (since ) atmospheric general circulation model (AGCM) by: The fake below-ground meridional wind (FBGMW) exists in reanalysis products which is not present in the real atmosphere and should be removed before calculating the mass stream function (MSF).

In this study, the impacts of FBGMW on Hadley circulation (HC) in terms of climatology, interannual variability, and long-term trends were investigated using five reanalysis data sets based on three Author: Jianbo Cheng, Zhihang Xu, Xiaoya Hou.

The main objective of the workshop was to address this question by assessing the current state of knowledge on predictability of seasonal and interannual climate variability and to investigate various possibilities for its prediction.

The interannual variation in the onset of the summer rainy season was characterized by abrupt changes in these factors of atmospheric circulation patterns during onset[−1]–onset[0].

Thus, these factors greatly influence the onset timing and process of the summer rainy season. The suppressed variability of TIW agreed well between the two sets, but amplification of the variability was somewhat underestimated in SODA (underestimation was also found in a general circulation model output; Menkes et al.

Nonetheless, correlation between TIWV from SODA and from Tropical Ocean and Global Atmosphere (TOGA)–TAO was 0. The atmospheric circulation response to sea surface temperature (SST) anomalies is a crucial part of the tropical air–sea interaction.

Therefore, understanding the changes in the atmospheric circulation response to SST anomalies is key to understanding the changes in tropical climate variability. An index measuring the variability of MAT intensity is defined, which reveals significant interannual and interdecadal variations of the trough.

On interannual time scales, the variation of MAT is significantly associated with the North Atlantic Oscillation, a southeastward propagating stationary wave that possibly originates from the. T.N. Krishnamurti is Professor of Meteorology at Florida State University. He obtained his PhD in at the University of Chicago.

His research interests are in the following areas: high resolution hurricane forecast (tracks, landfall, and intensity), monsoon forecasts on short, medium range, and monthly time scale and studies of interseasonal and interannual variability of the tropical.

Through the changes in the atmospheric circulation, IOD influences the world climate [e.g., Saji and Yamagata, b]. For example, the IOD influences the Southern Oscillation in the Pacific [Behera and Yamagata, ], rainfall variability during the Indian summer monsoon [Behera et al., ; Ashok et al., ], the summer climate condition.

S.G. Philander, in Encyclopedia of Ocean Sciences (Second Edition), The Atmosphere. The atmospheric circulation in low latitudes corresponds mainly to direct thermal circulations driven by convection over the regions with the highest surface temperatures. Moisture-bearing trade winds converge onto these regions where the air rises in cumulus towers that provide plentiful rainfall locally.

The effect of atmospheric circulation on temperature variability and trends in Finland in – is studied using a trajectory-based method. On the average 81% of the detrended interannual variance of monthly mean temperatures is explained by the start points of the three-dimensional trajectories, with the best performance in autumn and winter.

Also, it was shown that the observed interannual variability of seasonal statistics (including extremes) can be better reproduced by using 12‐hourly, rather than seasonal, data in statistical downscaling. This stresses the importance of availability of higher‐resolution data from climate model outputs.

GMMIP simulations on global monsoon interannual variability show higher skill than historical simulations Institute of Atmospheric Physics, Chinese Academy of Sciences. The reconstructed Southern California precipitation record contains interannual variability in the 2‐ to 7‐year band that could be driven by changes in tropical Pacific ENSO variability and/or the strength of the ENSO teleconnection modulated by extratropical pressure systems.

Rodríguez, J.M.; Milton, S.F. East Asian Summer Atmospheric Moisture Transport and Its Response to Interannual Variability of the West Pacific Subtropical High: An Evaluation of the Met Office Unified Model. Atmosphere10, Regional Climate of China is the first volume to present the latest research findings gained over the last decade which has greatly advanced our knowledge of the regional climate researches in China.

A distinctive feature of the volume is that it is based on an integration of researches by using the advanced technologies, such as field observation and experiment, satellite information and.

Using meteorological observation data and NCEP/NCAR (National Centers for Environmental Prediction/National Center for Atmospheric Research) reanalysis data, the impacts of the atmospheric circulation pattern on the interannual variability of haze-fog in northern China in January are studied by means of statistical methods.

The results showed that the Eurasian teleconnection (EU) at the   Previous studies explain the impact of ENSO on haze based on the fact that ENSO modulates some of these meteorological factors (e.g., precipitation anomalies or atmospheric circulation anomalies), without strictly examining whether the interannual haze variability is driven by these meteorological factors (S.

Li et al., ; Zhao et al., ). A. Mapande, C. Reason, Links between rainfall variability on intraseasonal and interannual scales over western Tanzania and regional circulation and SST patterns, Meteorology and Atmospheric Physics, /s, 89,(), ().

The large interannual variability (IAV) of global atmospheric carbon dioxide (CO 2) growth rate originates primarily from variations in CO 2 uptake by pantropical terrestrial ecosystems, whose carbon balance is basically controlled by climate fluctuations of water availability and heat stress related to precipitation and temperature anomalies (Beer et alBallantyne et alAhlström.

Previous analyses of ENSO and rainfall variability (e.g., Gershunov and Barnett, ; Englehart and Douglas, ; Gutzler et al., ) have found a distinct change in statistics of interannual variability before and afterwhen Pacific Ocean SSTs and the atmospheric circulation shifted in association with the PDO (Graham, ; Mantua.

Interannual variability of cyclones that are generated over the eastern Asian continent and passed over the Yellow, Bohai, and East China seas (YBE cyclones) in spring is analyzed using reanalysis datasets for the period of – Possible causes for the variability are also discussed.

Results show that the number of YBE cyclones exhibits significant interannual variability with a period. the statistics have a distinctive annual cycle that should be recognized in the analysis; rather than simply ana-lyze the seasons separately, we employ a cyclostation-ary EOF (CSEOF) analysis (Kim and North ).

This provides a rather different perspective on interannual variability, and perhaps one that may be of value in other applications. Systematic differences in NCEP tropopause statistics are observed between the presatellite (–) and postsatellite (–) periods, precluding the use of the reanalyses for the study of multidecadal variability.

Interannual anomalies in tropical average radiosonde and NCEP data show variations of order ±1–2 K over the period. Enter search terms. Keep search filters New search.

Advanced search. These weather conditions are largely affected by large-scale atmospheric circulation anomalies with strong interannual variability, such as the East Asian Winter Monsoon (EAWM), Arctic sea ice and sea surface temperature anomalies in the northwestern Pacific (Wang et alWu et alPei et al ).

Although both meteorological. Increasing greenhouse gas concentrations are expected to enhance the interannual variability of summer climate in Europe 1,2,3 and other mid.

Mark C. Serreze, Andrew P. Barrett, Alex D. Crawford, Rebecca A. Woodgate, Monthly Variability in Bering Strait Oceanic Volume and Heat Transports, Links to Atmospheric Circulation and Ocean Temperature, and Implications for Sea Ice Conditions, Journal of Geophysical Research: Oceans, /JC,12, (), ().

Understanding the variability of heat waves and their relation to the large‐scale circulation and SST forcing can be important for predicting the short‐term regional climate extremes (e.g., Della‐Marta et al., ; Marshall et al., ). By linking each of the dominant modes with the large‐scale atmospheric circulation, it is.

The interannual variability of rainfall over the Indian subcontinent, the African Sahel, and the Nordeste region of Brazil have been evaluated in 32 models for the period as part of the. The relationship between interannual variation of spring SAT and snow over eastern Eurasia is significantly strengthened after Atmospheric circulation anomalies play an.

Analyses of the associated principal components show that the variability of surface atmospheric circulation over Europe (35°–70°N and 30°W–40°E) is well captured, using only 20 stations. The first three EOF patterns of the study are the central tendency of European pressure (EOF 1), a zonal flow pattern over Europe (EOF 2), and a.

For this reason, understanding the variability of Siberian precipitation is important for climate change research. Several studies have investigated the impacts of atmospheric circulation patterns on the variability of Siberian precipitation during the winter season 7,8,9,10, in particular the Northern Annular Mode (NAM) 11,12,13 and the.

large-scale moisture convergence (C) due to atmospheric circulation and/or from evaporation (E) from the sur-face since both ocean-atmosphere interactions and land-atmosphere interactions are fundamental in understanding the variability of precipitation over this region.

Another aspect is how P,Cand E are modified on interannual. Haas, C. & Eicken, H. Interannual variability of summer sea ice thickness in the Siberian and central Arctic under different atmospheric circulation regimes. Geophys. To ensure that the interannual variability is simulated in phase with the one observed, the measured sea surface temperature and sea ice were prescribed following the atmospheric model intercomparison project (AMIP), and the 3D fields of horizontal winds were nudged toward the ERA.

The teleconnections described above represent standing modes of atmospheric circulation variability on subseasonal-to-interannual timescales. As such, it is of interest to inquire into the nature of related SST anomalies, which in the Pacific Basin can provide additional discrimination between the overlapping height variability patterns.

This paper analyses the interannual evolution of snow accumulation in these mountains in relation to the variability of atmospheric circulation.

The study considers two spatial scales, from weather types over the Iberian Peninsula to hemispheric atmospheric patterns.Analysis of subseasonal and interannual atmospheric variability.

• Probabilistic classification of atmospheric circulation patterns. Central to this understanding is the role played by the dominant patterns of ocean and atmospheric variability which define coherent variations in physical characteristics over large areas.Interannual variability of patterns of atmospheric mass distribution Kevin E.

Trenberth, David P. Stepaniak and Lesley Smith email: [email protected] fax: () ph: () National Center for Atmospheric Research1 P. O. Box Boulder, CO 9 February Revised 15 July J. Climate JCL