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Relaxation of Wind Stress Drives the Abrupt Onset of Biological Carbon Uptake in the Kerguelen Bloom: A Multisensor Approach 期刊论文
GEOPHYSICAL RESEARCH LETTERS, 2020, 47 (9)
作者:  Pellichero, Violaine;  Boutin, Jacqueline;  Claustre, Herve;  Merlivat, Liliane;  Sallee, Jean-baptiste;  Blain, Stephane
收藏  |  浏览/下载:21/0  |  提交时间:2020/07/02
onset of the phytoplankton bloom  mixing-layer depth  in situ high-resolution data  mixed-layer depth  air-sea heat flux  wind stress  
Nightside condensation of iron in an ultrahot giant exoplanet 期刊论文
NATURE, 2020, 580 (7805) : 597-+
作者:  Lu, Zhihao;  Zou, Jianling;  Li, Shuang;  Topper, Michael J.;  Tao, Yong;  Zhang, Hao;  Jiao, Xi;  Xie, Wenbing;  Kong, Xiangqian;  Vaz, Michelle;  Li, Huili;  Cai, Yi;  Xia, Limin;  Huang, Peng;  Rodgers, Kristen;  Lee, Beverly;  Riemer, Joanne B.;  Day, Chi-Ping;  Yen, Ray-Whay Chiu;  Cui, Ying;  Wang, Yujiao;  Wang, Yanni;  Zhang, Weiqiang;  Easwaran, Hariharan;  Hulbert, Alicia;  Kim, KiBem;  Juergens, Rosalyn A.;  Yang, Stephen C.;  Battafarano, Richard J.;  Bush, Errol L.;  Broderick, Stephen R.;  Cattaneo, Stephen M.;  Brahmer, Julie R.;  Rudin, Charles M.;  Wrangle, John;  Mei, Yuping;  Kim, Young J.;  Zhang, Bin;  Wang, Ken Kang-Hsin;  Forde, Patrick M.;  Margolick, Joseph B.;  Nelkin, Barry D.;  Zahnow, Cynthia A.;  Pardoll, Drew M.;  Housseau, Franck;  Baylin, Stephen B.;  Shen, Lin;  Brock, Malcolm V.
收藏  |  浏览/下载:97/0  |  提交时间:2020/07/03

Ultrahot giant exoplanets receive thousands of times Earth'  s insolation(1,2). Their high-temperature atmospheres (greater than 2,000 kelvin) are ideal laboratories for studying extreme planetary climates and chemistry(3-5). Daysides are predicted to be cloud-free, dominated by atomic species(6) and much hotter than nightsides(5,7,8). Atoms are expected to recombine into molecules over the nightside(9), resulting in different day and night chemistries. Although metallic elements and a large temperature contrast have been observed(10-14), no chemical gradient has been measured across the surface of such an exoplanet. Different atmospheric chemistry between the day-to-night ('  evening'  ) and night-to-day ('  morning'  ) terminators could, however, be revealed as an asymmetric absorption signature during transit(4,7,15). Here we report the detection of an asymmetric atmospheric signature in the ultrahot exoplanet WASP-76b. We spectrally and temporally resolve this signature using a combination of high-dispersion spectroscopy with a large photon-collecting area. The absorption signal, attributed to neutral iron, is blueshifted by -11 +/- 0.7 kilometres per second on the trailing limb, which can be explained by a combination of planetary rotation and wind blowing from the hot dayside(16). In contrast, no signal arises from the nightside close to the morning terminator, showing that atomic iron is not absorbing starlight there. We conclude that iron must therefore condense during its journey across the nightside.


Absorption lines of iron in the dayside atmosphere of an ultrahot giant exoplanet disappear after travelling across the nightside, showing that the iron has condensed during its travel.


  
SST front anchored mesoscale feature of surface wind in the southern Indian Ocean 期刊论文
CLIMATE DYNAMICS, 2019, 53: 477-490
作者:  Huang, Xia;  Cheng, Xuhua;  Qi, Yiquan
收藏  |  浏览/下载:12/0  |  提交时间:2019/11/27
High wind  Southern Indian Ocean  SST front  Southern Annual Mode  Interannual variability  
Renewable energy from the high seas: Geo-spatial modelling of resource potential and legal implications for developing offshore wind projects beyond the national jurisdiction of coastal States 期刊论文
ENERGY POLICY, 2019, 128: 919-929
作者:  Elsner, Paul;  Suarez, Suzette
收藏  |  浏览/下载:18/0  |  提交时间:2019/11/26
Offshore wind energy  Geospatial resource modelling  Law of the sea  High seas  UNCLOS  
Coastal Iberia Summertime Low-Level Flow Assessed From Scatterometers 期刊论文
JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES, 2019, 124 (5) : 2414-2434
作者:  Monteiro, Isabel T.;  Vogelzang, Jur
收藏  |  浏览/下载:8/0  |  提交时间:2019/11/26
high-resolution scatterometer wind products  ASCAT-6  25  wind intensification  wind relaxations  expansion fans  upwelling relaxations  
High-Latitude Observations of a Localized Wind Wall and Its Coupling to the Lower Thermosphere 期刊论文
GEOPHYSICAL RESEARCH LETTERS, 2018, 45 (10) : 4586-4593
作者:  Shepherd, Gordon G.;  Shepherd, Marianna G.
收藏  |  浏览/下载:13/0  |  提交时间:2019/04/09
thermosphere  neutral winds  dynamic reversals  high latitudes  longitude dependence  wind wall  
Assessment of the Barren Ground Caribou Die-off During Winter 2015-2016 Using Passive Microwave Observations 期刊论文
GEOPHYSICAL RESEARCH LETTERS, 2018, 45 (10) : 4908-4916
作者:  Dolant, C.;  Montpetit, B.;  Langlois, A.;  Brucker, L.;  Zolina, O.;  Johnson, C. A.;  Royer, A.;  Smith, P.
收藏  |  浏览/下载:16/0  |  提交时间:2019/04/09
wind slab  passive microwave  high density snow  caribou  
Foehn Event Triggered by an Atmospheric River Underlies Record-Setting Temperature Along Continental Antarctica 期刊论文
JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES, 2018, 123 (8) : 3871-3892
作者:  Bozkurt, D.;  Rondanelli, R.;  Marin, J. C.;  Garreaud, R.
收藏  |  浏览/下载:12/0  |  提交时间:2019/04/09
foehn wind  extreme high temperature  atmospheric river  climate variability  meteorology  regional climate modeling  
In Situ Observations of a Magnetosheath High-Speed Jet Triggering Magnetopause Reconnection 期刊论文
GEOPHYSICAL RESEARCH LETTERS, 2018, 45 (4) : 1732-1740
作者:  Hietala, H.;  Phan, T. D.;  Angelopoulos, V.;  Oieroset, M.;  Archer, M. O.;  Karlsson, T.;  Plaschke, F.
收藏  |  浏览/下载:23/0  |  提交时间:2019/04/09
high-speed jets  magnetosheath  magnetopause reconnection  solar wind-magnetosphere coupling  
Bringing modelled and observed surface winds together 期刊论文
INTERNATIONAL JOURNAL OF CLIMATOLOGY, 2017, 37 (14)
作者:  van den Brink, Henk W.;  Bosveld, Fred C.
收藏  |  浏览/下载:11/0  |  提交时间:2019/04/09
potential wind  geostrophic wind  wind bias  roughness length  high-resolution modelling  HARMONIE  model evaluation