Spatial and temporal variations of the january circumpolar vortex over the northern hemisphere

1994 ◽  
Vol 14 (4) ◽  
pp. 415-428 ◽  
Author(s):  
Robert E. Davis ◽  
Stephanie R. Benkovic
Keyword(s):  
Northern Hemisphere ◽  
Temporal Variations ◽  
Spatial And Temporal Variations ◽  
Circumpolar Vortex

scholarly journals Spatial and Temporal Variations of Atmospheric 85Kr Observed During 1995-2001 in Japan: Estimation of Atmospheric 85Kr Inventory in the Northern Hemisphere

2004 ◽  
Vol 45 (3) ◽  
pp. 405-413 ◽  
Author(s):  
Michio HIROTA ◽  
Kazuhiro NEMOTO ◽  
Akira WADA ◽  
Yasuhito IGARASHI ◽  
Michio AOYAMA ◽  
...  
Keyword(s):  
Northern Hemisphere ◽  
Temporal Variations ◽  
Spatial And Temporal Variations

scholarly journals Spatial and temporal variations of faecal indicator bacteria in Lake Bunyonyi, South-Western Uganda

2021 ◽  
Vol 3 (7) ◽  
Author(s):  
Alex Saturday ◽  
Thomas J. Lyimo ◽  
John Machiwa ◽  
Siajali Pamba
Keyword(s):  
Health Risks ◽  
Rank Correlation ◽  
Temporal Variations ◽  
Indicator Bacteria ◽  
Spatial And Temporal Variations ◽  
Wet Season ◽  
Recreational Waters ◽  
Faecal Indicator Bacteria ◽  
E Coli ◽  
Spearman’S Rank Correlation

AbstractBackground Microbial water quality serves to indicate health risks associated with the consumption of contaminated water. Nevertheless, little is known about the microbiological characteristics of water in Lake Bunyonyi. This study was therefore undertaken to examine the spatial and temporal variations of faecal indicator bacteria (FIB) in relation to physicochemical parameters in Lake Bunyonyi. Result The FIB concentration was consistently measured during sampling months and correlated with each other showing the presumed human faecal pollution in the lake. The highest concentration values for E. coli (64.7 ± 47.3 CFU/100 mL) and enterococci (24.6 ± 32.4 CFU/100 mL were obtained in the station close to the Mugyera trading centre. On a temporal basis, the maximum values were recorded during the rainy season in October 2019 (70.7 ± 56.5 CFU/100 mL for E. coli and 38.44 ± 31.8 CFU/100 mL for enterococci. FIB did not differ significantly among the study stations (p > 0.05) but showed significant temporal variations among the months (p < 0.05) with concentrations being significantly high in wet season than dry season (U = 794, p < 0.0001 for E. coli; U = 993.5, p = 0.008 for enterococci). Spearman’s rank correlation revealed that FIB concentrations were significantly positively correlated with turbidity and DO concentration levels (p < 0.05). Approximately 97.2% of the water samples had E. coli and enterococci concentrations levels below USEPA threshold for recreational waters. Likewise, 98.1 and 90.7% of samples recorded E. coli and enterococci counts exceeding the UNBS, APHA, WHO and EU threshold values for drinking water. Conclusion The FIB counts show that the Lake Bunyonyi water is bacteriologically unsuitable for drinking unless it is treated since the FIB pose health risks to consumers. Besides, the water can be used for recreational purposes.

Spatial and temporal variations in acoustic propagation characteristics at the new england shelfbreak front

2003 ◽  
Vol 28 (1) ◽  
pp. 129-150 ◽  
Author(s):  
J.F. Lynch ◽  
A.E. Newhall ◽  
B. Sperry ◽  
G. Gawarkiewicz ◽  
A. Fredricks ◽  
...  
Keyword(s):  
New England ◽  
Acoustic Propagation ◽  
Temporal Variations ◽  
Spatial And Temporal Variations ◽  
Propagation Characteristics

scholarly journals Spatial and temporal variations in Spain in the standardised ratio of in-hospital mortality due to colorectal cancer, 2008–2014

BMC Cancer ◽  
2019 ◽  
Vol 19 (1) ◽  
Author(s):  
J. M. García-Torrecillas ◽  
M. C. Olvera-Porcel ◽  
M. Ferrer-Márquez ◽  
F. Rubio-Gil ◽  
M J. Sánchez ◽  
...  
Keyword(s):  
Colorectal Cancer ◽  
Hospital Mortality ◽  
Temporal Variations ◽  
Spatial And Temporal Variations
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