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Ozone Production in the Soberanes Smoke Haze: Implications for Air Quality in the San Joaquin Valley During the California Baseline Ozone Transport Study 期刊论文
JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES, 2020, 125 (11)
作者:  Langford, Andrew O.;  Alvarez, Raul J., II;  Brioude, J.;  Caputi, Dani;  Conley, Stephen A.;  Evan, S.;  Faloona, Ian C.;  Iraci, Laura T.;  Kirgis, Guillaume;  Marrero, Josette E.;  Ryoo, Ju-Mee;  Senff, Christoph J.;  Yates, Emma L.
收藏  |  浏览/下载:14/0  |  提交时间:2020/08/18
ozone  wildfire  lidar  aircraft  California  San Joaquin Valley  
The vertical structure and spatial variability of lower-tropospheric water vapor and clouds in the trades 期刊论文
ATMOSPHERIC CHEMISTRY AND PHYSICS, 2020, 20 (10) : 6129-6145
作者:  Naumann, Ann Kristin;  Kiemle, Christoph
收藏  |  浏览/下载:5/0  |  提交时间:2020/06/01
Standardizing Ecosystem Morphological Traits from 3D Information Sources 期刊论文
TRENDS IN ECOLOGY & EVOLUTION, 2020, 35 (8) : 656-667
作者:  Valbuena, R.;  39;Connor, B.
收藏  |  浏览/下载:6/0  |  提交时间:2020/05/20
Small-scale structure of thermodynamic phase in Arctic mixed-phase clouds observed by airborne remote sensing during a cold air outbreak and a warm air advection event 期刊论文
ATMOSPHERIC CHEMISTRY AND PHYSICS, 2020, 20 (9) : 5487-5511
作者:  Ruiz-Donoso, Elena;  Ehrlich, Andre;  Schaefer, Michael;  Jaekel, Evelyn;  Schemann, Vera;  Crewell, Susanne;  Mech, Mario;  Kulla, Birte Solveig;  Kliesch, Leif-Leonard;  Neuber, Roland;  Wendisch, Manfred
收藏  |  浏览/下载:10/0  |  提交时间:2020/05/13
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:30/0  |  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.


  
Carbon declines along tropical forest edges correspond to heterogeneous effects on canopy structure and function 期刊论文
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA, 2020, 117 (14) : 7863-7870
作者:  Ordway, Elsa M.;  Asner, Gregory P.
收藏  |  浏览/下载:10/0  |  提交时间:2020/05/13
Borneo  carbon conservation  forest edge effects  deforestation  leaf traits  
The Sensitivity of Hyporheic Exchange to Fractal Properties of Riverbeds 期刊论文
WATER RESOURCES RESEARCH, 2020, 56 (5)
作者:  Lee, Anzy;  Aubeneau, Antoine F.;  Cardenas, Bayani
收藏  |  浏览/下载:10/0  |  提交时间:2020/05/13
Quantifying the Spatial Variability of a Snowstorm Using Differential Airborne Lidar 期刊论文
WATER RESOURCES RESEARCH, 2020, 56 (3)
作者:  Brandt, W. Tyler;  Bormann, Kat J.;  Cannon, Forest;  Deems, Jeffrey S.;  Painter, Thomas H.;  Steinhoff, Daniel F.;  Dozier, Jeff
收藏  |  浏览/下载:12/0  |  提交时间:2020/07/02
Aboveground carbon emissions from gold mining in the Peruvian Amazon 期刊论文
ENVIRONMENTAL RESEARCH LETTERS, 2020, 15 (1)
作者:  Csillik, Ovidiu;  Asner, Gregory P.
收藏  |  浏览/下载:11/0  |  提交时间:2020/07/02
deep learning  forest degradation  gold mining  Madre de Dios  Planet Dove  REDD plus  tropical forest  
Impacts of Water Vapor on Saharan Air Layer Radiative Heating 期刊论文
GEOPHYSICAL RESEARCH LETTERS, 2019
作者:  Gutleben, Manuel;  Gross, Silke;  Wirth, Martin;  Emde, Claudia;  Mayer, Bernhard
收藏  |  浏览/下载:7/0  |  提交时间:2020/02/17