نتایج جستجو برای: sea level pressure slp

تعداد نتایج: 1555553  

2011
HIROKI TOKINAGA SHANG-PING XIE

Ship-based measurements of sea surface wind speed display a spurious upward trend due to increases in anemometer height. To correct this bias, the authors constructed a new sea surface wind dataset from ship observations of wind speed and wind wave height archived in the International Comprehensive Ocean– Atmosphere Data Set (ICOADS). The Waveand Anemometer-based Sea surface Wind (WASWind) data...

2012
Jessica A. Garza Pao-Shin Chu Chase W. Norton Thomas A. Schroeder

[1] Changes in the frequency and intensity of the prevailing northeast and east trade winds from 1973-2009 are analyzed from four land stations in the Hawaiian Islands. A nonparametric robust trend analysis indicates a downward trend in northeast trade wind frequency since 1973. At the Honolulu International Airport, northeast trade wind days usually occurred 291 days per year 37 years ago are ...

2015
BRIAN V. SMOLIAK JOHN M. WALLACE PU LIN QIANG FU

The influence of atmospheric circulation changes reflected in spontaneously occurring sea level pressure (SLP) anomalies upon surface air temperature (SAT) variability and trends is investigated using partial least squares (PLS) regression, a statistical method that seeks to maximally explain covariance between a predictand time series or field and a predictor field. Applying PLS regression in ...

2007
L. A. RASMUSSEN H. CONWAY

A simple model using once-daily US National Centers for Environmental Prediction/US National Center for Atmospheric Research (NCEP/NCAR) re-analysis upper-air values estimates winter balance, summer balance and net balance at ten glaciers in Norway and two in Sweden with 0:37 r2 0:90: The October–May Arctic Oscillation (AO), an index of sea-level pressure (SLP) in the Northern Hemisphere, corre...

One of the most important environmental challenges which exists in the Middle East and Iran in recent years is the phenomenon of dust. As regards the Western half of Iran is in proximity to large deserts and continually effects the country deserts dust and specially that western half and also the unpleasant effects that these dusts have on environment and people health; so the purpose of this s...

Journal: :The Cryosphere 2021

Abstract. The amount and spatial extent of Greenland Sea (GS) ice are primarily controlled by the sea export across Fram Strait (FS) local seasonal formation, melting, dynamics. In this study, using satellite passive microwave observations, atmospheric a coupled ocean-sea reanalysis system, TOPAZ4, we show that both oceanic circulation in Nordic Seas (NS) act tandem to explain SIC variability s...

Journal: :Atmospheric Chemistry and Physics 2021

Abstract. Cold surge (CS) is considered a favorable weather process to improve air quality and widely recognized. However, there no detailed study on the differences in dispersion ability of different types CSs relation haze days eastern China (HDEC). This paper uses hierarchical clustering algorithm classify cool-season (November February following year) across into blocking wave-train compare...

Journal: :international journal of civil engineering 0
m. karamouz school of civil engineering, university of tehran, tehran, iran m. fallahi school of civil engineering., amirkabir university of tech., tehran, iran s. nazif school of civil engineering, university of tehran, tehran, iran m. rahimi farahani school of civil engineering., amirkabir university of tech., tehran

runoff simulation is a vital issue in water resource planning and management. various models with different levels of accuracy and precision are developed for this purpose considering various prediction time scales. in this paper, two models of ihacres (identification of unit hydrographs and component flows from rainfall, evaporation and streamflow data) and ann (artificial neural network) mode...

2004
Eric DeWeaver Cecilia M. Bitz

The simulation of Arctic sea ice and surface winds changes significantly when CCSM3 resolution is increased from T42 ( 2.8 deg) to T85 ( 1.4 deg). At T42 resolution, Arctic sea ice is too thick off the Siberian coast and too thin along the Canadian coast. Both of these biases are reduced at T85 resolution. The most prominent surface wind difference is the erroneous North Polar summer anticyclon...

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