Results 31 to 40 of about 114,297 (300)

National characterization of pesticide runoff and erosion potential to put USEPA standard ecological scenarios in context for pyrethroids

Integrated Environmental Assessment and Management, Volume 19, Issue 1, Page 175-190, January 2023., 2023
Abstract Decision‐making for pesticide registration by the US Environmental Protection Agency (USEPA) relies upon crop‐specific scenarios in a tiered framework. These standard modeling scenarios are stated to represent “…sites expected to produce runoff greater than would be expected at 90% of the sites for a given crop/use.” This study developed a ...
Amy Ritter, Dean Desmarteau, Paul Hendley, Christopher M. Holmes   +3 more
wiley   +1 more source

Supervised classification of landforms in Arctic mountains [PDF]

Permafrost and Periglacial Processes, 2019
AbstractErosional and sediment fluxes from Arctic mountains are lower than for temperate mountain ranges due to the influence of permafrost on geomorphic processes. As permafrost extent declines in Arctic mountains, the spatial distribution of geomorphic processes and rates will change.
Tristram Hales, Huw Thomas Mithan, Huw Thomas Mithan, Peter John Cleall   +3 more
openaire   +3 more sources

Tools for Semi-automated Landform Classification: A Comparison in the Basilicata Region (Southern Italy) [PDF]

, 2020
Recent advances in spatial methods of digital elevation model (DEMs) analysis have addressed many research topics on the assessment of morphometric parameters of the landscape.
A Guisan, A Seif, AN Strahler, D Gioia, E Patacca, EH Hammond, J De Reu, M Bavusi, M Bentivenga, M Bentivenga, P Beneduce, P Di Leo, PPC Aucelli, RE Horton, S Athanasios, S Giano, S Piedilato, S Tagil, SI Giano, SI Giano, SI Giano, SI Giano, SI Giano, T Pescatore   +23 more
core   +1 more source

Geographic object‐based image analysis (GEOBIA) of the distribution and characteristics of aeolian sand dunes in Arctic Sweden

Permafrost and Periglacial Processes, Volume 34, Issue 1, Page 22-36, January/March 2023., 2023
Abstract Current climate change in the Arctic is unprecedented in the instrumental record, with profound consequences for the environment and landscape. In Arctic Sweden, aeolian sand dunes have been impacted by climatic changes since their initial formation after the retreat of the last glacial ice sheet.
Melanie Stammler, Thomas Stevens, Daniel Hölbling   +2 more
wiley   +1 more source

Comparison of Different Methods of Automated Landform Classification at the Drainage Basin Scale: Examples from the Southern Italy [PDF]

, 2020
In this work, we tested the reliability of two different methods of automated landform classification (ACL) in three geological domains of the southern Italian chain with contrasting morphological features.
A Caruso, D Gioia, D Gioia, J De Reu, J Jasiewicz, L Drăguţ, M Bentivenga, M Danese, M Del Prete, M Piccarreta, M Schiattarella, M Wieczorek, P Di Leo, S d’Oleire-Oltmanns, SI Giano, T Hengl, T Kramm, T Pescatore   +17 more
core   +1 more source

Landform classification of New Mexico by computer [PDF]

Open-File Report, 1991
Note: The shaded relief map, Plate 2 in this report, is a degraded image from an original 24 inch by 30 inch negative. A better quality contact photographic print is available for $58 each (price subject to change without notice) by sending a check payable to C-L Custom Photo Co., c/o U.S.
Richard Dikau, Robert M. Mark, Earl E. Brabb   +2 more
openaire   +2 more sources

Quantification of Loess Landforms from Three-Dimensional Landscape Pattern Perspective by Using DEMs

ISPRS International Journal of Geo-Information, 2021
Quantitative analysis of the differences and the exploration of the evolution models of different loess landform types are greatly important to the in-depth understanding of the evolution process and mechanism of the loess landforms.
Hong Wei, Sijin Li, Chenrui Li, Fei Zhao, Liyang Xiong, Guoan Tang   +5 more
doaj   +1 more source

Classification of Landforms Using the Concepts of Machine Learning

International Journal of Recent Trends in Engineering and Research, 2018

openalex   +2 more sources

Turbulence signatures of natural river morphology in four dimensions

River Research and Applications, Volume 39, Issue 1, Page 122-133, January 2023., 2023
Abstract Turbulent flow in natural river channels drives geophysical processes and exerts a fundamental influence on aquatic biota. An extensive range of turbulence properties have previously been synthesized into four categories or “dimensions” with ecological relevance: intensity, periodicity, orientation and scale (IPOS).
Giuditta Trinci, Gemma L. Harvey, Alexander James Henshaw, Walter Bertoldi   +3 more
wiley   +1 more source

Changing spatial distribution of water flow charts major change in Mars' greenhouse effect [PDF]

Science Advances 8(21), (2022), 2022
Early Mars had rivers, but the cause of Mars' wet-to-dry transition remains unknown. Past climate on Mars can be probed using the spatial distribution of climate-sensitive landforms. We analyzed global databases of water-worked landforms and identified changes in the spatial distribution of rivers over time.
arxiv   +1 more source