National Weather Service forecast map showing predicted low temperatures for Tuesday, Jan. 12, 2016.NOAA In a season that has seenEl Niñoresult in extreme weather and severe storms, Pastolek said to expect more cold temperatures by the end of the month. ...
We show that the S〨 pattern is associated with a transient amplification of planetary wavenumberand meridional eddy heat flux, followed by the onset of a weakened polar vortex which persists for the next 2 months. We then analyse 10 different models from the S2S database, finding that while ...
"Weather forecasters are warning of dangerously cold conditions in parts of the nation. Some places could see wind chill readings as low as 60 below zero. Due to this arctic outbreak and concerns for the safety of USPS employees, the Postal Service is suspending delivery Jan....
CHICAGO (CBS) —A chunk of the polar vortex is present in the Chicago area, bringing the coldest temperatures of the season with dangerous wind chills. The polar vortex is an ever-present, large area of low-pressure and frigid air surrounding the Earth's poles. While it exists in both th...
Computer vision techniques are used to characterize the Arctic stratospheric polar vortex in 38 years of reanalysis data. Such techniques are typically applied to analyses of digital images, but they represent powerful tools that are more widely applicable: basic techniques and considerations for geophysi...
EXPLAINER: What is the polar vortex? How it’s responsible for dangerous cold An active storm track across the southern U.S. and then up the U.S. East Coast should bring substantial snow at times to Atlantic Canada for the...
Although vortex structures of aurora, called auroral spirals, often appear to evolve from arc-like auroras to a train of two or more spirals of diameter ~50 km in the Earth’s nightside auroral oval (about 65–75° magnetic latitude)7,8, they are not unusually intense and do not have...
map of horizontal wind direction and speed at an altitude of 10 m on all the radiosonde launches, including in the JPCZ area in the left bottom side of the figure. Over the area off the coast of Hokkaido, a cyclonic vortex-like structure is observed. This is probably a polar low, ...
For the mitigation and prediction of the GNSS signal corruption due to scintilla- tions, the analysis is focused mainly on the diffractive (stochastic) effects, which are hard to forecast and mitigate. In turn, the advancement of knowledge about the irreg- ularities causing scintillations boosts ...
Stratospheric polar vortexsudden stratospheric warmingmedium-range forecastSL-AV global atmosphere modelThe quality of Arctic winter stratospheric dynamics forecast using the SL-AV atmospheric global circulation model is studied. The series of numerical experiments show that forecasts with the lead time up ...