Search Results - "Harris, P R"
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Detecting recovery of the stratospheric ozone layer
Published in Nature (London) (14-09-2017)“…As a result of the 1987 Montreal Protocol and its amendments, the atmospheric loading of anthropogenic ozone-depleting substances is decreasing. Accordingly,…”
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2
Phytoplankton blooms: a ‘loophole’ in microzooplankton grazing impact?
Published in Journal of plankton research (01-04-2005)“…Phytoplankton size and relations between phytoplankton and microzooplankton (ciliates and heterotrophic dinoflagellates) biomass are analysed in 12 globally…”
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3
Methane emissions from oil and gas platforms in the North Sea
Published in Atmospheric chemistry and physics (02-08-2019)“…Since 1850 the concentration of atmospheric methane (CH4), a potent greenhouse gas, has more than doubled. Recent studies suggest that emission inventories may…”
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4
On ozone trend detection: using coupled chemistry–climate simulations to investigate early signs of total column ozone recovery
Published in Atmospheric chemistry and physics (01-06-2018)“…Total column ozone values from an ensemble of UM-UKCA model simulations are examined to investigate different definitions of progress on the road to ozone…”
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Atmospheric isoprene measurements reveal larger-than-expected Southern Ocean emissions
Published in Nature communications (22-03-2024)“…Isoprene is a key trace component of the atmosphere emitted by vegetation and other organisms. It is highly reactive and can impact atmospheric composition and…”
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Long-term phytoplankton community dynamics in the Western English Channel
Published in Journal of plankton research (01-05-2010)“…Over a 15-year period (1992–2007), weekly water samples were collected from the L4 time-series station in the Western English Channel and analysed for…”
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7
A growing threat to the ozone layer from short-lived anthropogenic chlorocarbons
Published in Atmospheric chemistry and physics (12-10-2017)“…Large and effective reductions in emissions of long-lived ozone-depleting substance (ODS) are being achieved through the Montreal Protocol, the effectiveness…”
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8
Transport of short-lived halocarbons to the stratosphere over the Pacific Ocean
Published in Atmospheric chemistry and physics (31-01-2020)“…The effectiveness of transport of short-lived halocarbons to the upper troposphere and lower stratosphere remains an important uncertainty in quantifying the…”
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9
Estimating the size of a methane emission point source at different scales: from local to landscape
Published in Atmospheric chemistry and physics (29-06-2017)“…High methane (CH4) mixing ratios (up to 4 ppm) have occurred sporadically at our measurement site in Haddenham, Cambridgeshire, since July 2012. Isotopic…”
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10
Airborne measurements of organic bromine compounds in the Pacific tropical tropopause layer
Published in Proceedings of the National Academy of Sciences - PNAS (10-11-2015)“…Very short-lived brominated substances (VSLBr) are an important source of stratospheric bromine, an effective ozone destruction catalyst. However, the accurate…”
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11
Helicobacter pylori infection is associated with an altered gastric microbiota in children
Published in Mucosal immunology (01-09-2017)“…The intestinal microbiome in early life influences development of the mucosal immune system and predisposition to certain diseases. Because less is known about…”
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Intercomparison of vertically resolved merged satellite ozone data sets: interannual variability and long-term trends
Published in Atmospheric chemistry and physics (17-03-2015)“…In the framework of the SI2N (SPARC (Stratosphere-troposphere Processes And their Role in Climate)/IO3C (International Ozone Commission)/IGACO-O3 (Integrated…”
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iDirac: a field-portable instrument for long-term autonomous measurements of isoprene and selected VOCs
Published in Atmospheric measurement techniques (19-02-2020)“…The iDirac is a new instrument to measure selected hydrocarbons in the remote atmosphere. A robust design is central to its specifications, with portability,…”
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14
Surface fluxes of bromoform and dibromomethane over the tropical western Pacific inferred from airborne in situ measurements
Published in Atmospheric chemistry and physics (15-10-2018)“…We infer surface fluxes of bromoform (CHBr3) and dibromoform (CH2Br2) from aircraft observations over the western Pacific using a tagged version of the…”
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Boundary layer new particle formation over East Antarctic sea ice – possible Hg-driven nucleation?
Published in Atmospheric chemistry and physics (02-12-2015)“…Aerosol observations above the Southern Ocean and Antarctic sea ice are scarce. Measurements of aerosols and atmospheric composition were made in East…”
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On the emissions and transport of bromoform: sensitivity to model resolution and emission location
Published in Atmospheric chemistry and physics (21-12-2015)“…Bromoform (CHBr3) is a short-lived species with an important but poorly quantified ocean source. It can be transported to the Tropical Tropopause Layer (TTL),…”
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Estimates of tropical bromoform emissions using an inversion method
Published in Atmospheric chemistry and physics (28-01-2014)“…Bromine plays an important role in ozone chemistry in both the troposphere and stratosphere. When measured by mass, bromoform (CHBr3) is thought to be the…”
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Transport of short-lived species into the Tropical Tropopause Layer
Published in Atmospheric chemistry and physics (19-07-2012)“…We use NAME, a trajectory model, to investigate the routes and timescales over which air parcels reach the tropical tropopause layer (TTL). Our aim is to…”
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Global sea-to-air flux climatology for bromoform, dibromomethane and methyl iodide
Published in Atmospheric chemistry and physics (06-09-2013)“…Volatile halogenated organic compounds containing bromine and iodine, which are naturally produced in the ocean, are involved in ozone depletion in both the…”
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Comparison of five methods for estimating growth of Calanus helgolandicus later developmental stages (CV-CVI)
Published in Marine biology (01-10-2005)“…The activity of the enzymes aminoacyl-tRNA synthetases (AARS) in adult females and males and copepodites stage V of Calanus helgolandicus was studied at the L4…”
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