E. G. Norton
University of Manchester
Network
Latest external collaboration on country level. Dive into details by clicking on the dots.
Publication
Featured researches published by E. G. Norton.
Bulletin of the American Meteorological Society | 2007
K. A. Browning; Alan M. Blyth; Peter A. Clark; U. Corsmeier; Cyril J. Morcrette; Judith L. Agnew; Sue P. Ballard; Dave Bamber; Christian Barthlott; Lindsay J. Bennett; Karl M. Beswick; Mark Bitter; K. E. Bozier; Barbara J. Brooks; C. G. Collier; Fay Davies; Bernhard Deny; Mark Dixon; Thomas Feuerle; Richard M. Forbes; Catherine Gaffard; Malcolm D. Gray; R. Hankers; Tim J. Hewison; N. Kalthoff; S. Khodayar; M. Kohler; C. Kottmeier; Stephan Kraut; M. Kunz
The Convective Storm Initiation Project (CSIP) is an international project to understand precisely where, when, and how convective clouds form and develop into showers in the mainly maritime environment of southern England. A major aim of CSIP is to compare the results of the very high resolution Met Office weather forecasting model with detailed observations of the early stages of convective clouds and to use the newly gained understanding to improve the predictions of the model. A large array of ground-based instruments plus two instrumented aircraft, from the U.K. National Centre for Atmospheric Science (NCAS) and the German Institute for Meteorology and Climate Research (IMK), Karlsruhe, were deployed in southern England, over an area centered on the meteorological radars at Chilbolton, during the summers of 2004 and 2005. In addition to a variety ofground-based remote-sensing instruments, numerous rawinsondes were released at one- to two-hourly intervals from six closely spaced sites. The Met Office weather radar network and Meteosat satellite imagery were used to provide context for the observations made by the instruments deployed during CSIP. This article presents an overview of the CSIP field campaign and examples from CSIP of the types of convective initiation phenomena that are typical in the United Kingdom. It shows the way in which certain kinds of observational data are able to reveal these phenomena and gives an explanation of how the analyses of data from the field campaign will be used in the development of an improved very high resolution NWP model for operational use.
Chemical Physics Letters | 2001
Stephen M. Ball; Ian M. Povey; E. G. Norton; Roderic L. Jones
Abstract Cavity ringdown spectroscopy (CRDS) has been demonstrated using a broadband (20 nm) laser source and a two-dimensional clocked detector array. Absorption spectra of dilute samples (50–500 parts per trillion) of the nitrate radical, NO 3 , have been obtained between 650 and 670 nm by monitoring simultaneously the time and wavelength resolved output of a ringdown cavity. The potential of broadband CRDS for making measurements on samples containing multiple absorbers (e.g., atmospheric samples) is shown by applying analysis methods from differential optical absorption spectroscopy to quantify the NO 3 concentration in the presence of nitrogen dioxide impurities.
Bulletin of the American Meteorological Society | 2016
David Leon; Jeffrey R. French; Sonia Lasher-Trapp; Alan M. Blyth; Steven J. Abel; Susan P. Ballard; Andrew I. Barrett; Lindsay J. Bennett; Keith N. Bower; Barbara J. Brooks; P. R. A. Brown; Cristina Charlton-Perez; Thomas Choularton; Peter A. Clark; C. G. Collier; Jonathan Crosier; Zhiqiang Cui; Seonaid R. A. Dey; David Dufton; Chloe Eagle; M. Flynn; Martin Gallagher; Carol Halliwell; Kirsty E. Hanley; Lee Hawkness-Smith; Y. Huang; Graeme Kelly; Malcolm Kitchen; Alexei Korolev; Humphrey W. Lean
AbstractThe Convective Precipitation Experiment (COPE) was a joint U.K.–U.S. field campaign held during the summer of 2013 in the southwest peninsula of England, designed to study convective clouds that produce heavy rain leading to flash floods. The clouds form along convergence lines that develop regularly as a result of the topography. Major flash floods have occurred in the past, most famously at Boscastle in 2004. It has been suggested that much of the rain was produced by warm rain processes, similar to some flash floods that have occurred in the United States. The overarching goal of COPE is to improve quantitative convective precipitation forecasting by understanding the interactions of the cloud microphysics and dynamics and thereby to improve numerical weather prediction (NWP) model skill for forecasts of flash floods. Two research aircraft, the University of Wyoming King Air and the U.K. BAe 146, obtained detailed in situ and remote sensing measurements in, around, and below storms on several d...
Tellus A | 2009
Andrew Russell; G. Vaughan; E. G. Norton; Hugo Ricketts; Cyril J. Morcrette; Tim J. Hewison; K. A. Browning; Alan M. Blyth
Abstract A narrow line of convective showers was observed over southern England on 18 July 2005 during the Convective Storm Initiation Project (CSIP). The showers formed behind a cold front (CF), beneath two apparently descending dry layers (i.e. sloping so that they descended relative to the instruments observing them). The lowermost dry layer was associated with a tropopause fold from a depression, which formed 2 d earlier from a breaking Rossby wave, located northwest of the UK. The uppermost dry layer had fragmented from the original streamer due to rotation around the depression (This rotation was also responsible for the observations of apparent descent—ascent would otherwise be seen behind a CF). The lowermost dry layer descended over the UK and overran higher θw air beneath it, resulting in potential instability. Combined with a surface convergence line (which triggered the convection but had less impact on the convective available potential energy than the potential instability), convection was forced up to 5.5 km where the uppermost dry layer capped it. The period when convection was possible was very short, thus explaining the narrowness of the shower band. Convective Storm Initiation Project observations and model data are presented to illustrate the unique processes in this case.
CURRENT PROBLEMS IN ATMOSPHERIC RADIATION (IRS 2008): Proceedings of the International Radiation Symposium (IRC/IAMAS) | 2009
Paolo Di Girolamo; Donato Summa; Rohini Bhawar; Tatiana Di Iorio; G. Vaughan; E. G. Norton; Gerhard Peters
During the Convective and Orographically‐induced Precipitation Study (COPS), lidar dark bands were observed by the Univ. of BASILicata Raman lidar system (BASIL) on several IOPs and SOPs (among others, 23 July, 15 August, 17 August). Dark band signatures appear in the lidar measurements of particle backscattering at 355, 532 and 1064 nm and particle extinction at 355 and 532 nm, as well as in particle depolarization measurements. Lidar data are supported by measurements from the University of Hamburg cloud radar MIRA 36 (36 GHz), the University of Hamburg dual‐polarization micro rain radars (24.1 GHz) and the University of Manchester Radio UHF clear air wind profiler (1.29 GHz). Results from BASIL and the radars are illustrated and discussed to support in the comprehension of the microphysical and scattering processes responsible for the appearance of the lidar dark band and radar bright band.
Second International Asia-Pacific Symposium on Remote Sensing of the Atmosphere, Environment, and Space | 2001
E. G. Norton; Ian M. Povey; A. M. South; Roderic L. Jones
The application of a charge coupled device (CCD) based detection system to Raman lidar is described, experimental details and initials results are presented for rotational Raman studies of the troposphere. The band envelopes of the Stokes and anti-Stokes rotational lines of N2 and O2 were measured simultaneously at a spectral resolution of 0.18 nm and a Marquardt-Levenberg fitting method used to construct atmospheric temperature profiles from the ground. The systems potential as an altitude resolved atmospheric probe of temperature is discussed.
Atmospheric Environment | 2006
James Lee; Alastair C. Lewis; Paul S. Monks; Mark Jacob; Jacqueline F. Hamilton; J. R. Hopkins; N. Watson; J. E. Saxton; Christopher Ennis; Lucy J. Carpenter; Nicola Carslaw; Zoe L. Fleming; Brian J. Bandy; D. E. Oram; S. A. Penkett; Jana Slemr; E. G. Norton; Andrew R. Rickard; L. K. Whalley; Dwayne E. Heard; William J. Bloss; Thomas Gravestock; Shona C. Smith; Jenny Stanton; Michael J. Pilling; Michael E. Jenkin
Atmospheric Chemistry and Physics | 2005
Dwayne E. Heard; K. A. Read; John Methven; S. Al-Haider; William J. Bloss; G. P. Johnson; Michael J. Pilling; Paul W. Seakins; Shona C. Smith; R. Sommariva; Jenny Stanton; T. J. Still; Trevor Ingham; Barbara J. Brooks; G. de Leeuw; Andrea V. Jackson; J. B. McQuaid; R. Morgan; Michael H. Smith; Lucy J. Carpenter; Nicola Carslaw; Jacqueline F. Hamilton; J. R. Hopkins; James Lee; Alastair C. Lewis; R. M. Purvis; David J. Wevill; N. Brough; T. J. Green; G. P. Mills
Quarterly Journal of the Royal Meteorological Society | 2011
U. Corsmeier; N. Kalthoff; Christian Barthlott; Fumiko Aoshima; Andreas Behrendt; P. Di Girolamo; Manfred Dorninger; J. Handwerker; C. Kottmeier; Holger Mahlke; S. D. Mobbs; E. G. Norton; Jens Wickert; Volker Wulfmeyer
Atmospheric Chemistry and Physics | 2007
K.M. Beswick; Martin Gallagher; Ann R. Webb; E. G. Norton; F. Perry