GSTDTAP

浏览/检索结果: 共33条,第1-10条 帮助

限定条件                    
已选(0)清除 条数/页:   排序方式:
Evaluating Wind Fields for Use in Basin‐Scale Distributed Snow Models 期刊论文
Water Resources Research, 2020
作者:  Dylan Reynolds;  Justin M. Pflug;  Jessica D. Lundquist
收藏  |  浏览/下载:8/0  |  提交时间:2020/12/28
Maximizing the value of forest restoration for tropical mammals by detecting three-dimensional habitat associations 期刊论文
Proceedings of the National Academy of Sciences, 2020
作者:  Nicolas J. Deere;  Gurutzeta Guillera-Arroita;  Tom Swinfield;  David T. Milodowski;  David A. Coomes;  Henry Bernard;  Glen Reynolds;  Zoe G. Davies;  Matthew J. Struebig
收藏  |  浏览/下载:10/0  |  提交时间:2020/10/12
Inferring distributed snow depth by leveraging snow pattern repeatability: Investigation using 47 lidar observations in the Tuolumne watershed, Sierra Nevada, California 期刊论文
Water Resources Research, 2020
作者:  J. M. Pflug;  J. D. Lundquist
收藏  |  浏览/下载:4/0  |  提交时间:2020/08/25
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
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
Modeling the Snow Depth Variability With a High-Resolution Lidar Data Set and Nonlinear Terrain Dependency 期刊论文
WATER RESOURCES RESEARCH, 2019
作者:  Skaugen, T.;  Melvold, K.
收藏  |  浏览/下载:5/0  |  提交时间:2020/02/16
Snow depth distribution  Laser scan of snow depth  snow depth distribution model  
Allergenic pollen production across a large city for common ragweed (Ambrosia artemisiifolia) 期刊论文
LANDSCAPE AND URBAN PLANNING, 2019, 190
作者:  Katz, Daniel S. W.;  Batterman, Stuart A.
收藏  |  浏览/下载:6/0  |  提交时间:2019/11/27
Aerial imagery  Allergic rhinitis  Habitat distribution modeling  LiDAR  Urban ecology  Vacant lots