Precipitation and air temperature extremes in the Amazon and northeast Brazil

2018 ◽  
Vol 39 (2) ◽  
pp. 579-595 ◽  
Author(s):  
Pollyanne Evangelista Da Silva ◽  
Cláudio Moisés Santos e Silva ◽  
Maria Helena Constantino Spyrides ◽  
Lára de Melo Barbosa Andrade
Keyword(s):  
Air Temperature ◽  
Temperature Extremes ◽  
Northeast Brazil

Stochastic investigation of daily air temperature extremes from a global ground station network

2021 ◽  
Author(s):  
Konstantinos-Georgios Glynis ◽  
Theano Iliopoulou ◽  
Panayiotis Dimitriadis ◽  
Demetris Koutsoyiannis
Keyword(s):  
Air Temperature ◽  
Temperature Extremes ◽  
Station Network ◽  
Ground Station

scholarly journals Relationships of surface air temperature anomalies over Europe to persistence of atmospheric circulation patterns conducive to heat waves

2008 ◽  
Vol 14 ◽  
pp. 243-249 ◽  
Author(s):  
J. Kyselý ◽  
R. Huth
Keyword(s):  
Atmospheric Circulation ◽  
Air Temperature ◽  
Heat Waves ◽  
Temperature Extremes ◽  
Human Society ◽  
Positive Temperature ◽  
Temperature Anomalies ◽  
Circulation Types ◽  
Circulation Patterns ◽  
Air Temperature Anomalies

Abstract. Heat waves are among natural hazards with the most severe consequences for human society, including pronounced mortality impacts in mid-latitudes. Recent studies have hypothesized that the enhanced persistence of atmospheric circulation may affect surface climatic extremes, mainly the frequency and severity of heat waves. In this paper we examine relationships between the persistence of the Hess-Brezowsky circulation types conducive to summer heat waves and air temperature anomalies at stations over most of the European continent. We also evaluate differences between temperature anomalies during late and early stages of warm circulation types in all seasons. Results show that more persistent circulation patterns tend to enhance the severity of heat waves and support more pronounced temperature anomalies. Recent sharply rising trends in positive temperature extremes over Europe may be related to the greater persistence of the circulation types, and if similar changes towards enhanced persistence affect other mid-latitudinal regions, analogous consequences and implications for temperature extremes may be expected.

7. Intertidal life

2020 ◽  
pp. 135-146
Author(s):  
Philip V. Mladenov
Keyword(s):  
Air Temperature ◽  
Physical Environment ◽  
Human Impacts ◽  
Marine Organisms ◽  
Global Ocean ◽  
Thin Strip ◽  
Temperature Extremes ◽  
Wide Range ◽  
Marine Community

The intertidal region of the Global Ocean is a thin strip of shoreline lying between the high and low tide marks; it is completely submerged by seawater at the highest high tides and completely uncovered at the lowest low tides. The intertidal region is occupied almost exclusively by marine organisms that have adapted to live in a very stressful physical environment influenced by exposure to air, temperature extremes, wind, and the pounding of waves. This region is home to a diverse and interesting marine community that is easy to study and enjoy due to its accessibility. It is also a place where people routinely harvest seafood, and is prone to a wide range of human impacts.

scholarly journals On the Drivers of Temperature Extremes on the Antarctic Peninsula During Austral Summer

2021 ◽  
Author(s):  
Sai Wang ◽  
Minghu Ding ◽  
Ge Liu ◽  
Ting Wei ◽  
Wenqian Zhang ◽  
...  
Keyword(s):  
Air Temperature ◽  
Antarctic Peninsula ◽  
Rossby Wave ◽  
Austral Summer ◽  
Polar Front ◽  
Temperature Extremes ◽  
Cold Events ◽  
Wave Trains ◽  
The Antarctic ◽  
Polar Front Jet

Abstract On the basis of surface air temperature (SAT) observations from the Great Wall Station located on the Antarctic Peninsula (AP) and ERA-Interim reanalysis data, the present manuscript investigates the role of atmospheric flow at intraseasonal and synoptic time scales in driving the temperature extremes over the AP during austral summer. Both warm and cold events can persist for multiple days and were maintained mainly by the advection of seasonal air temperature by intraseasonal winds. Synoptic winds can influence the temperature change around the peak time through their advection of seasonal temperature, thus determining the time of peak temperature anomalies. The generation of intraseasonal winds was closely associated with Rossby wave trains propagating along the polar front jet over the Atlantic sector of the Southern Ocean before the warm and cold events. The synoptic height anomalies before the warm events were also manifested as Rossby wave trains propagating along the polar front jet. However, synoptic Rossby wave trains were almost absent when the cold events occurred. Further analysis indicates that the weakened background flow during the cold events may have hindered the eastward travel of synoptic eddies. This study provides an important guidance for subseasonal to seasonal prediction on the AP.

Sign in / Sign up

Export Citation Format

Share Document