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Numerical simulation and sensitivity study of a severe hailstorm over Istanbul 期刊论文
Atmospheric Research, 2020
作者:  Emir Toker, Yasemin Ezber, Omer Lutfi Sen
收藏  |  浏览/下载:7/0  |  提交时间:2020/11/24
Observations of corona point discharges from grounded rods under thunderstorms 期刊论文
Atmospheric Research, 2020
作者:  Marcelo Arcanjo, Joan Montanyà, Michele Urbani, Victor Lorenzo, Nicolau Pineda
收藏  |  浏览/下载:6/0  |  提交时间:2020/09/08
Living at the edge of an active volcano: Risk from lava flows on Mt. Etna 期刊论文
GEOLOGICAL SOCIETY OF AMERICA BULLETIN, 2020, 132 (7-8) : 1615-1625
作者:  Del Negro, Ciro;  Cappello, Annalisa;  Bilotta, Giuseppe;  Ganci, Gaetana;  Herault, Alexis;  Zago, Vito
收藏  |  浏览/下载:5/0  |  提交时间:2020/08/18
Monumental architecture at Aguada Fenix and the rise of Maya civilization 期刊论文
NATURE, 2020
作者:  Bedding, Timothy R.;  Murphy, Simon J.;  Hey, Daniel R.;  Huber, Daniel;  Li, Tanda;  Smalley, Barry;  Stello, Dennis;  White, Timothy R.;  Ball, Warrick H.;  Chaplin, William J.;  Colman, Isabel L.;  Fuller, Jim;  Gaidos, Eric;  Harbeck, Daniel R.;  Hermes, J. J.;  Holdsworth, Daniel L.;  Li, Gang;  Li, Yaguang;  Mann, Andrew W.;  Reese, Daniel R.;  Sekaran, Sanjay;  Yu, Jie;  Antoci, Victoria;  Bergmann, Christoph;  Brown, Timothy M.;  Howard, Andrew W.;  Ireland, Michael J.;  Isaacson, Howard;  Jenkins, Jon M.;  Kjeldsen, Hans;  McCully, Curtis;  Rabus, Markus;  Rains, Adam D.;  Ricker, George R.;  Tinney, Christopher G.;  Vanderspek, Roland K.
收藏  |  浏览/下载:33/0  |  提交时间:2020/07/03

Archaeologists have traditionally thought that the development of Maya civilization was gradual, assuming that small villages began to emerge during the Middle Preclassic period (1000-350 bc  dates are calibrated throughout) along with the use of ceramics and the adoption of sedentism(1). Recent finds of early ceremonial complexes are beginning to challenge this model. Here we describe an airborne lidar survey and excavations of the previously unknown site of Aguada Fenix (Tabasco, Mexico) with an artificial plateau, which measures 1,400 m in length and 10 to 15 m in height and has 9 causeways radiating out from it. We dated this construction to between 1000 and 800 bc using a Bayesian analysis of radiocarbon dates. To our knowledge, this is the oldest monumental construction ever found in the Maya area and the largest in the entire pre-Hispanic history of the region. Although the site exhibits some similarities to the earlier Olmec centre of San Lorenzo, the community of Aguada Fenix probably did not have marked social inequality comparable to that of San Lorenzo. Aguada Fenix and other ceremonial complexes of the same period suggest the importance of communal work in the initial development of Maya civilization.


Lidar survey of the Maya lowlands uncovers the monumental site of Aguada Fenix, which dates to around 1000-800 bc and points to the role of communal construction in the development of Maya civilization.


  
Comparing the impact of environmental conditions and microphysics on the forecast uncertainty of deep convective clouds and hail 期刊论文
ATMOSPHERIC CHEMISTRY AND PHYSICS, 2020, 20 (4) : 2201-2219
作者:  Wellmann, Constanze;  Barrett, Andrew, I;  Johnson, Jill S.;  Kunz, Michael;  Vogel, Bernhard;  Carslaw, Ken S.;  Hoose, Corinna
收藏  |  浏览/下载:10/0  |  提交时间:2020/07/02
Urban canopy meteorological forcing and its impact on ozone and PM2.5: role of vertical turbulent transport 期刊论文
ATMOSPHERIC CHEMISTRY AND PHYSICS, 2020, 20 (4) : 1977-2016
作者:  Huszar, Peter;  Karlicky, Jan;  Doubalova, Jana;  Sindelarova, Katerina;  Novakova, Tereza;  Belda, Michal;  Halenka, Tomas;  Zak, Michal;  Pisoft, Petr
收藏  |  浏览/下载:8/0  |  提交时间:2020/07/02