scholarly journals The dominant influence of the Icelandic Low on the position of the Gulf Stream northwall

2004 ◽  
Vol 31 (9) ◽  
pp. n/a-n/a ◽  
Author(s):  
Sultan Hameed ◽  
Sergey Piontkovski
Keyword(s):  
Gulf Stream ◽  
Icelandic Low ◽  
Dominant Influence

scholarly journals The Icelandic Low as a Predictor of the Gulf Stream North Wall Position

2016 ◽  
Vol 46 (3) ◽  
pp. 817-826 ◽  
Author(s):  
Alejandra Sanchez-Franks ◽  
Sultan Hameed ◽  
Robert E. Wilson
Keyword(s):  
Gulf Stream ◽  
Southern Oscillation ◽  
Time Lags ◽  
Grand Banks ◽  
The North ◽  
Cape Hatteras ◽  
Pressure Anomaly ◽  
Icelandic Low ◽  
North Wall ◽  
Wall Position

AbstractThe Gulf Stream’s north wall east of Cape Hatteras marks the abrupt change in velocity and water properties between the slope sea to the north and the Gulf Stream itself. An index of the north wall position constructed by Taylor and Stephens, called Gulf Stream north wall (GSNW), is analyzed in terms of interannual changes in the Icelandic low (IL) pressure anomaly and longitudinal displacement. Sea surface temperature (SST) composites suggest that when IL pressure is anomalously low, there are lower temperatures in the Labrador Sea and south of the Grand Banks. Two years later, warm SST anomalies are seen over the Northern Recirculation Gyre and a northward shift in the GSNW occurs. Similar changes in SSTs occur during winters in which the IL is anomalously west, resulting in a northward displacement of the GSNW 3 years later. Although time lags of 2 and 3 years between the IL and the GSNW are used in the calculations, it is shown that lags with respect to each atmospheric variable are statistically significant at the 5% level over a range of years. Utilizing the appropriate time lags between the GSNW index and the IL pressure and longitude, as well as the Southern Oscillation index, a regression prediction scheme is developed for forecasting the GSNW with a lead time of 1 year. This scheme, which uses only prior information, was used to forecast the GSNW from 1994 to 2015. The correlation between the observed and forecasted values for 1994–2014 was 0.60, significant at the 1% level. The predicted value for 2015 indicates a small northward shift of the GSNW from its 2014 position.

scholarly journals On the Drivers of Decadal Variability of the Gulf Stream North Wall

2019 ◽  
Vol 32 (4) ◽  
pp. 1235-1249 ◽  
Author(s):  
Christopher L. P. Wolfe ◽  
Sultan Hameed ◽  
Lequan Chi
Keyword(s):  
Time Scales ◽  
Gulf Stream ◽  
Decadal Variability ◽  
Spatial Scales ◽  
Dominant Mode ◽  
The North ◽  
Wide Range ◽  
Icelandic Low ◽  
Azores High ◽  
North Wall

The Gulf Stream is bounded to the north by a strong temperature front known as the North Wall. The North Wall is subject to variability on a wide range of temporal and spatial scales—on interannual time scales, the dominant mode of variability is a longitudinally coherent north–south migration. North Wall variability since 1970 has been characterized by regular oscillations with a period of approximately nine years. This periodic variability, and its relationship to major modes of Atlantic climate variability, is examined in the frequency domain. The North Atlantic Oscillation (NAO) and the Atlantic meridional mode (AMM) both covary with the North Wall on decadal time scales. The NAO leads the North Wall by about one year, whereas the covariability between the North Wall and the AMM is synchronous (no lag). Covariability between the North Wall and the NAO is further examined in terms of the centers of action comprising the NAO: the Icelandic low and Azores high. It is found that the strength of the Icelandic low and its latitude as well as the strength of the Azores high play a role in decadal North Wall variability.

Slow gulf stream during ice ages?

Nature ◽  
1999 ◽  
Author(s):  
Heike Langenberg
Keyword(s):  
Gulf Stream ◽  
Ice Ages

Struktur Organisasi, Desain Kerja, Budaya Organisasi Dan Pengaruhnya Terhadap Produktivitas Karyawan Studi Kasus Pada PT. XX Di Jakarta

Liquidity ◽  
2018 ◽  
Vol 1 (2) ◽  
Author(s):  
Yanti Budiasih
Keyword(s):  
Organizational Culture ◽  
Regression Analysis ◽  
Linear Regression ◽  
Organizational Structure ◽  
Research Method ◽  
Linear Regression Analysis ◽  
Multiple Linear Regression Analysis ◽  
Job Design ◽  
Employee Productivity ◽  
Dominant Influence

The objectives of this study are to analyze changes in organizational structure, job design, organizational culture and its influence on employee productivity at PT. XX in Jakarta and to identify variables that have a dominant influence on the productivity of employees. The research method used is using multiple linear regression analysis. The results show that the all variables simultaneously and partially change the organizational structure, job design, and organizational culture has a significant impact on employee productivity at PT. XXin Jakarta.

Pengaruh Motivasi Kerja dan Budaya Kerja Terhadap Produktivitas Kerja Karyawan di Kebun Huta Padang PT. Perkebunan Nusantara III (PERSERO) Kabupaten Asahan Sumatera Utara

2020 ◽  
Vol 2 (2) ◽  
pp. 167-180
Author(s):  
Luli Achmad Gozali ◽  
Yusniar Lubis ◽  
Syaifuddin Syaifuddin
Keyword(s):  
Linear Regression ◽  
Data Collection ◽  
Multiple Linear Regression ◽  
Random Sampling ◽  
Research Method ◽  
Sampling Method ◽  
Quantitative Approach ◽  
Stratified Random Sampling ◽  
Direct Influence ◽  
Dominant Influence

This study is aimed to determine and analyze the effect of the implementation of motivation and culture on the employees productivity at Huta Padang estate of PT. Perkebunan Nusantara III (Persero) Asahan Regency North Sumatera. This research method uses a quantitative approach, the type of research is a survey. The sample was determined by stratified random sampling method, 95 people. The data collection through questionnaires. Data were analyzed using multiple linear regression. The results showed that partially and simultaneously, the implementation of motivation and culture had a positive and significant effect on the employess productivity at Huta padang estate of PT. Perkebunan Nusantara III (Persero) Asahan Regency North Sumatera. The determination coefficient value of 0.882, indicates that the influence of the implementation of motivation and culture on the employess productivity of Huta Padang estate of PT. Perkebunan Nusantara III (Persero) Asahan Regency North Sumatera is 88.2%. The culture has more dominant influence on the employees produktivity at  Huta Padang estate of PT. Perkebunan Nusantara III (Persero) Asahan Regency North Sumatera, with a direct influence of 73,2%. 

Le Gulf Stream dans le golfe du Mexique

1916 ◽  
Vol 25 (134) ◽  
pp. 146-149
Author(s):  
Lucien Gallois
Keyword(s):  
Gulf Stream

PENGARUH KOMPETENSI DAN LINGKUNGAN KERJA FISIK TERHADAP KINERJA KARYAWAN PT. SUZUKI INDOMOBIL MOTOR

2019 ◽  
Vol 7 (2) ◽  
Author(s):  
Rasmansyah Rasmansyah ◽  
M Zainal Aripin
Keyword(s):  
Work Environment ◽  
Random Sampling ◽  
Employee Performance ◽  
Secondary Data ◽  
Sampling Technique ◽  
Primary Data ◽  
Physical Work ◽  
Physical Work Environment ◽  
And Performance ◽  
Dominant Influence

<em>This research was conducted based on the existence of problems in the competence and physical work environment of employee performance. This study aims to determine the effect of competencies and physical work environment simultaneously or partially on the performance of employees of PT. Suzuki Indomobil Motor. The sampling technique is the sample random sampling technique. The type of research used is descriptive and verivative research methods, with data collection techniques using primary data and secondary data. The results showed that competency, physical work environment, and performance were categorized quite well. Based on the calculation, it can be seen that simultaneously the competence and physical work environment have a positive and significant influence on the performance of the employees of PT. Suzuki Indomobil Motor. Partially shows that the physical work environment has the most dominant influence on the performance of employees of PT. Suzuki Indomobil Motor</em>

Sign in / Sign up

Export Citation Format

Share Document