Download or read book Climate Variability and Snow Pack in the Sierra Nevada written by Daniel R. Cayan and published by . This book was released on 1994 with total page 8 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Climate Change and Sierra Nevada Snowpack written by Tammy Renee Johnson and published by . This book was released on 1998 with total page 88 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Climate Variability of the Sierra Nevada Over the Last Millennium written by Daniel R. Cayan and published by . This book was released on 2010 with total page 50 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book A Snow Water Equivalent Reanalysis Approach to Explore Spatial and Temporal Variability of the Sierra Nevada Snowpack written by Manuela Girotto and published by . This book was released on 2014 with total page 143 pages. Available in PDF, EPUB and Kindle. Book excerpt: The availability and variability of snowmelt has become a serious concern because of increased water demand, and because of the high degree of uncertainty related to climate variability posing a threat to the magnitude and timing of this precious resource. Understanding the geophysical controls and interannual variability of the spatial patterns of seasonal montane snowpacks are critical for understanding the effects of a warmer climate on the snowpack water storage. To explicitly resolve snow hydrological controls in complex montane environments, it is necessary to provide high resolution spatially and temporally distributed estimates of snow water equivalent, while also taking into consideration the uncertainties in the system. Toward this end, this dissertation developed a retrospective data assimilation technique (SWE reanalysis) that aimed to optimally merge VIS-NIR remote sensing data into a snow prediction model, and at the same time, account for the limitations of measurements, forcings, and model errors. The SWE reanalysis was: first developed and implemented over a small region, in order to investigate the performance of the methods under their nominal scenarios; second implemented for the full Landsat-5 record (27 year) over a regional scale domain in order to test accuracy and gain insight on the spatial and interannual controls on the SWE patterns; third extended to the entire Sierra Nevada in order to benchmark the reanalysis for its application to the full Sierra Nevada and to preliminarly [i.e. preliminarily] understand what are the spatial controls on SWE patterns. The key findings of this dissertation can be summarized as follows: 1) The SWE reanalysis approach provided accurate spatially and continuous estimates of SWE and of its uncertainties due to measurement, forcings, and model errors. 2) The methods were found to be robust to input errors such as biases in solar radiation and precipitation, and robust to the number of available VIS-NIR observations. 3) The application of the methods over the Kern watershed for the full Landsat-5 record suggested that SWE accumulation patterns were in general not interannually consistent and that the interannual variability was dependent on whether a dry or wet year was analyzed. 4) The trend test analysis showed that peak-SWE and day-of-peak have not drastically changed over the analyzed 27 years for the Kern River watershed, but suggested that the lower elevations may be more susceptible to climate variability and change. 5) Elevation was found to be the primary control on spatial patterns of peak-SWE and day-of-peak for the entire Sierra Nevada range; however different patterns were found across the watersheds of the Sierra Nevada depending on their location. Ultimately, the methods can be applied to the full Sierra Nevada and other montane regions over the modern remote sensing record to generate a dataset that should be useful to scientists and practitioners not only in hydrology, but other fields where seasonal snow processes are a key driver such as biogeochemistry, mountain meteorology, and water resource management.
Download or read book Potential Effects of Climate Change on Streamflow Eastern and Western Slopes of the Sierra Nevada California and Nevada written by Anne E. Jeton and published by . This book was released on 1996 with total page 56 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Observed Changes in the Sierra Nevada Snowpack written by and published by . This book was released on 2009 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Snow Cover and Climate in the Sierra Nevada California written by David Hewitt Miller and published by . This book was released on 1955 with total page 236 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Simulating and Understanding Variability in Runoff from the Sierra Nevada written by Alex Hall and published by . This book was released on 2010 with total page 46 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Atmospheric Rivers written by F. Martin Ralph and published by Springer Nature. This book was released on 2020-07-10 with total page 284 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is the standard reference based on roughly 20 years of research on atmospheric rivers, emphasizing progress made on key research and applications questions and remaining knowledge gaps. The book presents the history of atmospheric-rivers research, the current state of scientific knowledge, tools, and policy-relevant (science-informed) problems that lend themselves to real-world application of the research—and how the topic fits into larger national and global contexts. This book is written by a global team of authors who have conducted and published the majority of critical research on atmospheric rivers over the past years. The book is intended to benefit practitioners in the fields of meteorology, hydrology and related disciplines, including students as well as senior researchers.
Download or read book Part I written by James L. Smith and published by . This book was released on 1982 with total page 112 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Remote Sensing of Drought written by Brian D. Wardlow and published by CRC Press. This book was released on 2012-04-24 with total page 487 pages. Available in PDF, EPUB and Kindle. Book excerpt: Remote Sensing of Drought: Innovative Monitoring Approaches presents emerging remote sensing-based tools and techniques that can be applied to operational drought monitoring and early warning around the world. The first book to focus on remote sensing and drought monitoring, it brings together a wealth of information that has been scattered throughout the literature and across many disciplines. Featuring contributions by leading scientists, it assembles a cross-section of globally applicable techniques that are currently operational or have potential to be operational in the near future. The book explores a range of applications for monitoring four critical components of the hydrological cycle related to drought: vegetation health, evapotranspiration, soil moisture and groundwater, and precipitation. These applications use remotely sensed optical, thermal, microwave, radar, and gravity data from instruments such as AMSR-E, GOES, GRACE, MERIS, MODIS, and Landsat and implement several advanced modeling and data assimilation techniques. Examples show how to integrate this information into routine drought products. The book also examines the role of satellite remote sensing within traditional drought monitoring, as well as current challenges and future prospects. Improving drought monitoring is becoming increasingly important in addressing a wide range of societal issues, from food security and water scarcity to human health, ecosystem services, and energy production. This unique book surveys innovative remote sensing approaches to provide you with new perspectives on large-area drought monitoring and early warning.
Download or read book Winter Climate Variability and Snow Pack in the West written by Daniel R. Cayan and published by . This book was released on 1991 with total page 10 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Lakes and Watersheds in the Sierra Nevada of California written by John M. Melack and published by University of California Press. This book was released on 2020-12-01 with total page 219 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Sierra Nevada, California’s iconic mountain range, harbors thousands of remote high-elevations lakes from which water flows to sustain agriculture and cities. As climate and air quality in the region change, so do the watershed processes upon which these lakes depend. In order to understand the future of California’s ecology and natural resources, we need an integrated account of the environmental processes that underlie these aquatic systems. Synthesizing over three decades of research on the lakes and watersheds of the Sierra Nevada, this book develops an integrated account of the hydrological and biogeochemical systems that sustain them. With a focus on Emerald Lake in Sequoia National Park, the book marshals long-term limnological and ecological data to provide a detailed and synthetic account, while also highlighting the vulnerability of Sierra lakes to changes in climate and atmospheric deposition. In so doing, it lays the scientific foundations for predicting and understanding how the lakes and watersheds will respond.
Download or read book Quantifying Some Key Ecological Responses to Natural Climate Variability and Anthropogenic Climate Change in Great Basin and Sierra Nevada Ecosystems written by Brittany Gesina Johnson and published by . This book was released on 2014 with total page 480 pages. Available in PDF, EPUB and Kindle. Book excerpt: Changes in Earth's climate are predicted to strongly affect temperatures and droughts in the southwestern U.S. which will influence plant species distributions, soil biogeochemistry, and ecosystem function. The objectives of these studies were to quantitatively explore the effects that climate change may have on several key ecosystem functions, specifically (a) the effects of natural and simulated gradients in snowpack on decomposition and soil biotic activity in the Sierra Nevada, (b) canopy influence on soil nutrients along latitudinal-elevational gradients in the Great Basin and northern Mojave, and (c) spring and growing season environmental controls of transpiration in Great Basin tree species. Results from the snowpack gradient study showed that natural gradients in snow cover among tree-bole, under-canopy, and inter-canopy microsites of a Sierra Nevada forest as well as manipulated gradients where snow cover was experimentally reduced or supplemented, altered soil water content (SWC) for months and even years but differences in soil temperatures were typically short-lived (weeks-months). Although significant changes in soil biotic activity (litter decomposition, soil respiration or soil nutrients) between stand microsites or between manipulated plots were not detected during the study, the large and persistent decreases in SWC observed when snow cover was reduced suggest that biotic effects will eventually ensue. The second study, which examined the effects of canopy and plant species on surface soil chemistry, indicated that vegetation canopy is a driving factor in defining how soil chemical properties of Great Basin ecosystems respond to climate and anthropogenic climate change. Results also suggest that species migration that may result from changes in climate, the movement of desert shrub ecosystems, can significantly alter soil chemistry and ecosystem biogeochemistry and function in the Great Basin. Finally, the initiation of spring transpiration as well as growing season transpiration depended on multiple above- and below-ground environmental factors but that changes in photosynthetically active radiation (>70% of trees) and SWC (>60% of trees) were the most frequent environmental drivers for both periods. The results suggest that changes in climate that lead to alterations in the amount of available light and lower amounts of plant available soil water will have the most significant effects on transpiration in the high elevation, semi-arid forests of the Great Basin.
Download or read book The Sierra Ecology Project pt 1 The historical climatic regime and the projected impact of weather modification upon precipitation and temperature at Central Sierra Snow Laboratory written by and published by . This book was released on 1978 with total page 110 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Snow Cover and Climate in the Sierra Nevada California written by David H. Miller and published by . This book was released on with total page 226 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Snow Cover and Climate in the Sierra Nevada California written by David H. MILLER (Meteorologist.) and published by . This book was released on 1955 with total page 218 pages. Available in PDF, EPUB and Kindle. Book excerpt:
