Total ozone dependence of the difference between the empirically corrected EP-TOMS and high-latitude station datasets

first_imgA comparison was made of the ground-based and satellite total ozone content (TOC) measurements in the atmosphere over the Antarctic stations Vernadsky, Halley and Amundsen–Scott and the Arctic station Barrow. A similar discrepancy analysis was performed using the global network of ground-based ozonometric stations from the beginning of regular satellite observations in 1978. Slowing of the long-term global ozone losses has been observed during the past decade and a recovery of the ozone layer is forecast for the coming decades. Therefore, the accuracy requirements for ozone measurements are increasing, which, in turn, requires corresponding analysis of the measurement errors. In this work, the Earth Probe Total Ozone Mapping Spectrometer (EP-TOMS) satellite data from 1996 to 2005 were used. Satellite daily TOC values were taken using version 8 of the algorithm introduced in 2004 and empirically corrected in 2007. The most persistent features of the relative EP-TOMS–Dobson difference are: (1) a significant increase in dispersion during the period of the spring Antarctic ozone hole and (2) a differing dependence on total ozone in the trend tendency and significance for EP-TOMS and Dobson datasets. The results indicate the influence of the specific conditions during the Antarctic ozone hole on the possible precision that could be achieved in assessments of Montreal Protocol effects in the ozone layer over this region.last_img read more

Stokes and Hales named in England one-day squad for Australia

first_imgLONDON, England (Reuters) – Ben Stokes has been included in England’s one-day squad for the five-match series in Australia despite being under suspension.Stokes is currently unable to play for his country pending a decision on whether to charge him in connection with an altercation outside a Bristol nightclub in September.But he has been named in the 16-man squad for the ODI series starting next month after selectors were given “clear guidance to name their strongest squad”.He is joined by Alex Hales, who was also suspended after the Bristol incident but has since been told he can play for England after police confirmed he would not face criminal charges.Both players could yet face disciplinary action by the England and Wales Cricket Board.But with Stokes’ situation still not determined, he may not feature in the five-match one-day series, let alone the current Ashes series.The England all-rounder is currently in New Zealand, where he is playing for Canterbury after being granted dispensation by the ECB.With no decision yet made on whether to prosecute him, his chances of featuring in the Ashes, which has three Tests remaining, are diminishing.“Should the ECB Board receive formal confirmation that Ben Stokes has either been charged or that he will face no charges, they would convene within 48 hours to make a decision on his availability for the team at that stage,” the ECB said.Also in the one-day squad are Kent batsman Sam Billings and Yorkshire’s David Willey, who is selected ahead of Essex’s Ravi Bopara.The first one-day international is in Melbourne on January 14.England squad: Eoin Morgan (Middlesex) (capt.), Moeen Ali (Worcestershire), Jonathan Bairstow (Yorkshire), Jake Ball (Nottinghamshire), Sam Billings (Kent), Jos Buttler (Lancashire), Tom Curran (Surrey), Alex Hales (Nottinghamshire), Liam Plunkett (Yorkshire), Adil Rashid (Yorkshire), Joe Root (Yorkshire), Jason Roy (Surrey), Ben Stokes (Durham), David Willey (Yorkshire), Chris Woakes (Warwickshire), Mark Wood (Durham).last_img read more