Author: E.S. BrooksPublisher:
ISBN:
Category :
Languages : en
Pages : 15
Book Description
The Spatial and Temporal Variability of Soil Water and a Frozen Soil Layer in a Heterogeneous Landscape
Author: E.S. BrooksThe Spatial and Temporal Variability of a Frozen Soil Layer in a Heterogeneous Landscape
Author: Erin Scott BrooksSpatial and Temporal Analysis of Soil Water and Nitrogen Distribution Inundulating Landscapes Using a Gis-Based Model
Author: Wen-Ling KuoMeasurement of Temporal & Spatial Variability of Soil-Water ....
Author: C.W. McVoyClimate Change Impacts on Snowpack Heterogeneity
Author: Adrienne M. MarshallPublisher:
ISBN:
Category : Climatic changes
Languages : en
Pages : 330
Book Description
Throughout the western United States, seasonal snowpack is critical for water resources timing and availability and ecosystem function. Warming temperatures associated with climate change reduce snow accumulation and advance melt timing, with serious consequences for snow-dependent social and ecological systems. While many impacts of climate change on snowpack are well established, this dissertation investigates several elements of changing snowpack that have not been previously assessed. In particular, each chapter contributes to an improved understanding of the changing heterogeneity of snow under climate change. The first chapter tests the sensitivity of snow drifting to altered climate, using a physically-based hydrologic model and thirty years of hydroclimatological data at a site where aspen stands are subsidized by a wind-driven snow drift. We find a warming-induced reduction in snow drifting, increase in ecohydrologic homogeneity across the landscape, and altered interannual variability of hydrologic metrics. The second chapter assesses changes in interannual variability of snowpack magnitude and timing across the western United States, using downscaled global climate model data as forcing to the Variable Infiltration Capacity (VIC) model. We find that changes in interannual variability are spatially heterogeneous across the western U.S., but that interannual variability of annual maximum snow water equivalent (SWE[max]) decreases in regions transitioning from snow- to rain-dominated precipitation regimes. Changes in the date of SWE[max] are less spatially coherent, but agreement between general circulation models (GCMs) is most reliably found at relatively warm sites where the date of SWE[max] variability increases. The third chapter assesses another element of snow heterogeneity by testing the effect of snowfall intensity on winter ablation. Using a statistical modeling approach with observational snow data, we find that higher snowfall intensity is associated with reduced winter ablation; projected changes in snowfall intensity will likely exacerbate warming-induced increases in winter ablation in the maritime mountains of the western U.S. and mitigate it in the cooler continental regions. Finally, a fourth interdisciplinary, collaborative chapter synthesizes research on climate change in the mountainous headwaters of the Columbia River Basin. Findings show that research in this basin is focused on climate change impacts, rather than adaptation or mitigation, that social and biophysical sciences are not well integrated, and that research priorities differ across an international boundary. Cumulatively, this set of studies advances knowledge of how the spatial and temporal heterogeneity of snowpack will respond to climate change in the western United States, with implications for snow-dependent social and ecological systems.
Use of Spatial and Temporal Probability in the Study of Soil-water-landscape Relationships
Author: Eugenia Margarita Pena-YewtukhiwPublisher:
ISBN:
Category : Soil moisture
Languages : en
Pages : 518
Book Description
Spatial and Temporal Analysis of Soil Water and Nitrogen Distribution in Undulating Landscapes Using a GIS-based Model
Author: Wen-Ling KuoPublisher:
ISBN: 9780591969870
Category :
Languages : en
Pages : 218
Book Description
Finally, an example of the model application is demonstrated by evaluating the effects of water diversion ditches on the water and nitrogen distribution in a watershed in the Catskill mountains. Simulations show that diversions that are currently installed have little effect in a wet period, but can greatly modify the water and nitrogen distribution in fields near the diversions in the dry season.
Hydrologic Mediation of the Spatial and Temporal Variability of the Soil Carbon Dioxide Stable Isotopic Composition of a Subalpine Watershed
Author: Theresa Marie E. LorenzoPublisher:
ISBN:
Category :
Languages : en
Pages : 81
Book Description
Comprehensive Remote Sensing
Author: Shunlin LiangPublisher: Elsevier
ISBN: 0128032219
Category : Science
Languages : en
Pages : 3183
Book Description
Comprehensive Remote Sensing, Nine Volume Set covers all aspects of the topic, with each volume edited by well-known scientists and contributed to by frontier researchers. It is a comprehensive resource that will benefit both students and researchers who want to further their understanding in this discipline. The field of remote sensing has quadrupled in size in the past two decades, and increasingly draws in individuals working in a diverse set of disciplines ranging from geographers, oceanographers, and meteorologists, to physicists and computer scientists. Researchers from a variety of backgrounds are now accessing remote sensing data, creating an urgent need for a one-stop reference work that can comprehensively document the development of remote sensing, from the basic principles, modeling and practical algorithms, to various applications. Fully comprehensive coverage of this rapidly growing discipline, giving readers a detailed overview of all aspects of Remote Sensing principles and applications Contains ‘Layered content’, with each article beginning with the basics and then moving on to more complex concepts Ideal for advanced undergraduates and academic researchers Includes case studies that illustrate the practical application of remote sensing principles, further enhancing understanding
Thawing Permafrost
Author: J. van HuisstedenPublisher: Springer Nature
ISBN: 3030313794
Category : Science
Languages : en
Pages : 508
Book Description
This book provides a cross-disciplinary overview of permafrost and the carbon cycle by providing an introduction into the geographical distribution of permafrost, with a focus on the distribution of permafrost and its soil carbon reservoirs. The chapters explain the basic physical properties and processes of permafrost soils: ice, mineral and organic components, and how these interact with climate, vegetation and geomorphological processes. In particular, the book covers the role of the large quantities of ice in many permafrost soils which are crucial to understanding carbon cycle processes. An explanation is given on how permafrost becomes loaded with ice and carbon. Gas hydrates are also introduced. Structures and processes formed by the intense freeze-thaw action in the active layer are considered (e.g. ice wedging, cryoturbation), and the processes that occur as the permafrost thaws, (pond and lake formation, erosion). The book introduces soil carbon accumulation and decomposition mechanisms and how these are modified in a permafrost environment. A separate chapter deals with deep permafrost carbon, gas reservoirs and recently discovered methane emission phenomena from regions such as Northwest Siberia and the Siberian yedoma permafrost.