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The nature of ice-nucleating particles affects the radiative properties of tropical convective cloud systems 期刊论文
Atmospheric Chemistry and Physics, 2020
作者:  Rachel E. Hawker, Annette K. Miltenberger, Jonathan M. Wilkinson, Adrian A. Hill, Ben J. Shipway, Zhiqiang Cui, Richard J. Cotton, Ken S. Carslaw, Paul R. Field, and Benjamin J. Murray
收藏  |  浏览/下载:23/0  |  提交时间:2020/07/09
Increased yield and CO2 sequestration potential with the C4 cereal Sorghum bicolor cultivated in basaltic rock dust‐amended agricultural soil 期刊论文
Global Change Biology, 2020
作者:  Mike E. Kelland;  Peter W. Wade;  Amy L. Lewis;  Lyla L. Taylor;  Binoy Sarkar;  M. Grace Andrews;  Mark R. Lomas;  T. E. Anne Cotton;  Simon J. Kemp;  Rachael H. James;  Christopher R. Pearce;  Sue E. Hartley;  Mark E. Hodson;  Jonathan R. Leake;  Steven A. Banwart;  David J. Beerling
收藏  |  浏览/下载:42/0  |  提交时间:2020/05/13
Massively parallel coherent laser ranging using a soliton microcomb 期刊论文
NATURE, 2020, 581 (7807) : 164-+
作者:  Casanova, Emmanuelle;  Knowles, Timothy D. J.;  Bayliss, Alex;  Dunne, Julie;  Baranski, Marek Z.;  Denaire, Anthony;  Lefranc, Philippe;  di Lernia, Savino;  Roffet-Salque, Melanie;  Smyth, Jessica;  Barclay, Alistair;  Gillard, Toby;  Classen, Erich;  Coles, Bryony;  Ilett, Michael;  Jeunesse, Christian;  Krueger, Marta;  Marciniak, Arkadiusz;  Minnitt, Steve;  Rotunno, Rocco;  van de Velde, Pieter;  van Wijk, Ivo;  Cotton, Jonathan;  Daykin, Andy;  Evershed, Richard P.
收藏  |  浏览/下载:67/0  |  提交时间:2020/07/03

Coherent ranging, also known as frequency-modulated continuous-wave (FMCW) laser-based light detection and ranging (lidar)(1) is used for long-range three-dimensional distance and velocimetry in autonomous driving(2,3). FMCW lidar maps distance to frequency(4,5) using frequency-chirped waveforms and simultaneously measures the Doppler shift of the reflected laser light, similar to sonar or radar(6,7) and coherent detection prevents interference from sunlight and other lidar systems. However, coherent ranging has a lower acquisition speed and requires precisely chirped(8) and highly coherent(5) laser sources, hindering widespread use of the lidar system and impeding parallelization, compared to modern time-of-flight ranging systems that use arrays of individual lasers. Here we demonstrate a massively parallel coherent lidar scheme using an ultra-low-loss photonic chip-based soliton microcomb(9). By fast chirping of the pump laser in the soliton existence range(10) of a microcomb with amplitudes of up to several gigahertz and a sweep rate of up to ten megahertz, a rapid frequency change occurs in the underlying carrier waveform of the soliton pulse stream, but the pulse-to-pulse repetition rate of the soliton pulse stream is retained. As a result, the chirp from a single narrow-linewidth pump laser is transferred to all spectral comb teeth of the soliton at once, thus enabling parallelism in the FMCW lidar. Using this approach we generate 30 distinct channels, demonstrating both parallel distance and velocity measurements at an equivalent rate of three megapixels per second, with the potential to improve sampling rates beyond 150 megapixels per second and to increase the image refresh rate of the FMCW lidar by up to two orders of magnitude without deterioration of eye safety. This approach, when combined with photonic phase arrays(11) based on nanophotonic gratings(12), provides a technological basis for compact, massively parallel and ultrahigh-frame-rate coherent lidar systems.


  
Small ice particles at slightly supercooled temperatures in tropical maritime convection 期刊论文
ATMOSPHERIC CHEMISTRY AND PHYSICS, 2020, 20 (6) : 3895-3904
作者:  Lloyd, Gary;  Choularton, Thomas;  Bower, Keith;  Crosier, Jonathan;  Gallagher, Martin;  Flynn, Michael;  Dorsey, James;  Liu, Dantong;  Taylor, Jonathan W.;  Schlenczek, Oliver;  Fugal, Jacob;  Borrmann, Stephan;  Cotton, Richard;  Field, Paul;  Blyth, Alan
收藏  |  浏览/下载:21/0  |  提交时间:2020/07/02
Deep coverage whole genome sequences and plasma lipoprotein(a) in individuals of European and African ancestries 期刊论文
NATURE COMMUNICATIONS, 2018, 9
作者:  Zekavat, Seyedeh M.;  Ruotsalainen, Sanni;  Handsaker, Robert E.;  Alver, Maris;  Bloom, Jonathan;  Poterba, Timothy;  Seed, Cotton;  Ernst, Jason;  Chaffin, Mark;  Engreitz, Jesse;  Peloso, Gina M.;  Manichaikul, Ani;  Yang, Chaojie;  Ryan, Kathleen A.;  Fu, Mao;  Johnson, W. Craig;  Tsai, Michael;  Budoff, Matthew;  Ramachandran, Vasan S.;  Cupples, L. Adrienne;  Rotter, Jerome I.;  Rich, Stephen S.;  Post, Wendy;  Mitchell, Braxton D.;  Correa, Adolfo;  Metspalu, Andres;  Wilson, James G.;  Salomaa, Veikko;  Kellis, Manolis;  Daly, Mark J.;  Neale, Benjamin M.;  McCarroll, Steven;  Surakka, Ida;  Esko, Tonu;  Ganna, Andrea;  Ripatti, Samuli;  Kathiresan, Sekar;  Natarajan, Pradeep
收藏  |  浏览/下载:43/0  |  提交时间:2019/11/27
Coarse-mode mineral dust size distributions, composition and optical properties from AER-D aircraft measurements over the tropical eastern Atlantic 期刊论文
ATMOSPHERIC CHEMISTRY AND PHYSICS, 2018, 18 (23) : 17225-17257
作者:  Ryder, Claire L.;  Marenco, Franco;  Brooke, Jennifer K.;  Estelles, Victor;  Cotton, Richard;  Formenti, Paola;  McQuaid, James B.;  Price, Hannah C.;  Liu, Dantong;  Ausset, Patrick;  Rosenberg, Phil D.;  Taylor, Jonathan W.;  Choularton, Tom;  Bower, Keith;  Coe, Hugh;  Gallagher, Martin;  Crosier, Jonathan;  Lloyd, Gary;  Highwood, Eleanor J.;  Murray, Benjamin J.
收藏  |  浏览/下载:34/0  |  提交时间:2019/04/09
Aircraft and ground measurements of dust aerosols over the west African coast in summer 2015 during ICE-D and AER-D 期刊论文
ATMOSPHERIC CHEMISTRY AND PHYSICS, 2018, 18 (5) : 3817-3838
作者:  Liu, Dantong;  Taylor, JonathanW.;  Crosier, Jonathan;  Marsden, Nicholas;  Bower, Keith N.;  Lloyd, Gary;  Ryder, Claire L.;  Brooke, Jennifer K.;  Cotton, Richard;  Marenco, Franco;  Blyth, Alan;  Cui, Zhiqiang;  Estelles, Victor;  Gallagher, Martin;  Coe, Hugh;  Choularton, Tom W.
收藏  |  浏览/下载:29/0  |  提交时间:2019/04/09
Eocene greenhouse climate revealed by coupled clumped isotope-Mg/Ca thermometry 期刊论文
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA, 2018, 115 (6) : 1174-1179
作者:  Evans, David;  Sagoo, Navjit;  Renema, Willem;  Cotton, Laura J.;  Muller, Wolfgang;  Todd, Jonathan A.;  Saraswati, Pratul Kumar;  Stassen, Peter;  Ziegler, Martin;  Pearson, Paul N.;  Valdes, Paul J.;  Affek, Hagit P.
收藏  |  浏览/下载:20/0  |  提交时间:2019/11/27
clumped isotope  Eocene  tropical sea-surface temperatures  polar amplification  seawater Mg/Ca