Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 24 for “"winter precipitation"”.
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Combined Role of Low- and Mid-level Jets and Atmospheric Rivers on Winter Precipitation in the Eastern Sierra Nevada
… (ARs) are an important contributor to extreme precipitation in the western United States. This study takes a closer look at the climatology of AR events that generate precipitation on the eastern slopes of the Sierra Nevada, with a particular focus on the Tahoe region. Daily measurements of …
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The characteristics and measurement of winter precipitation in basins of internal drainage in Saskatchewan: a case study of Big Quill Lake
… an acceptable method with which to measure the winter precipitation in the major internal drainage basins in Saskatchewan. These internal basins constitute twenty per cent of the settled land area of the province. Using stochastic hydrological information, precipitation was demonstrated to be …
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Representation of Mean Precipitation and Decadal Variability in Atmosphere Models
… sea surface temperature variability affects precipitation over Europe and the Sahel using the atmosphere model OpenIFS. I found that European extreme precipitation is better represented at higher horizontal resolution, while the model time step has a limited effect on total precipitation …
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Late Holocene Climate-Flood Relationships on the Lower Ohio River
… in the 1800s increased during times when winter precipitation predominated as a result of atmospheric circulation changes resembling the Pacific North vii American mode (PNA) that appear to have been driven in part by the Pacific Decadal Oscillation (PDO). Following Euro-American land …
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Holocene development of Lake Lögurinn and Eyjabakkajökull : a multi-proxy approach
… Lake Lögurinn have been analysed to reconstruct winter precipitation in the Lake Lögurinn region during the past ca. 750 years. The sediments and proxy records show a dynamic development of Eyjabakkajökull during the current interglacial. After the final phase of the last deglaciation in eastern …
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Climatic signals and frequencies in the Swedish Time Scale, River Ångermanälven, Central Sweden
… to melt water generation. Accumulated observed winter precipitation data from eleven meteorological stations from within and in the vicinity of the Ångermanälven catchment were compared to Qmax. Nine time series shared variation with Qmax and were complied into an average accumulated winter …
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Biophysical and Climate Analysis of the Mountain Pine Beetle (Dendroctonus ponderosae) Infestations in the Crown of the Continent, 1962 to 2014
… be a link between local biophysical factors and winter precipitation and TPA within the CCE, and 3) a combination of a negative-phase PDO and La Niña is important in forecasting a decline in MPB spread, during a given year. This study is the first, to our knowledge, to explore spatio-temporal …
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How Distance from Groundwater Affects the Water Status of Trees at San Marcos Springs
… of water for all trees, most likely derived from winter precipitation and variably enriched by evaporation. Similar studies conducted on the Edwards Plateau and elsewhere similarly indicated that trees near flowing water sources avoid their uptake even during drought, instead taking water from …
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Projecting Future Local Hydroclimatology: A Framework for Local Water Resource Planners in the Animas River Basin at Durango, Colorado
… However, increasing temperatures and decreasing precipitation have begun to affect the timing and magnitude of this process. This could begin to have serious implications for the region's water resources. Predicting future changes in hydroclimatology will provide a serious challenge for local …
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Water resources planning and climate change adaptation strategies of Sardinian basins under water-limited conditions
… century have revealed significant declines in winter precipitation, a halving of annual river runoff, and an increase of approximately 1 °C in mean annual air temperature. To investigate ecosystem responses to contrasting precipitation regimes, two micrometeorological towers were installed: one …
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Climate change and road freight safety: impacts and opportunities
… of safer technology and a reduction of winter road icing and summer precipitation events could potentially lead to a safer operating environment, certain scenarios which promote high emissions, a larger freight fleet and low investment in infrastructure could cause problems, especially …
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Plant organic matter mobilization and export in fluvial systems
… (e.g. catchment size, plant cover, annual precipitation or runoff, topographic measures). On one hand, I demonstrated that pOMsourced from the Arun is not uniformly derived from its entire catchment area. On the other, I showed that dense vegetation is a necessary, but not sufficient, …
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Forward modeling of tree-climate relations across the Northern Hemisphere
… growth at the end of growing season, summer precipitation generally has a strong positive influence on tree-ring formations, while at locations where soil moisture limits growth at the end of growing season, ring widths usually have a positive correlation with winter precipitation. Because …
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Remote sensing assessment of rapidly changing lake areas in semi-arid closed basins : modern playa lake response to meteorological variability and implications for pluvial Lake Palomas Holocene highstands
… climate variability, particularly variations in precipitation. In arid and semi-arid regions throughout the world, playas play an important role in biological communities, agriculture, and as a major dust source when they are dry. The ability to monitor these lakes at a high temporal resolution …
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Trace metal applications in atmospheric and watershed dynamics: Case studies of mercury deposition in New England and bedrock groundwater-surface water mixing
… in the summer and spring and lowest in the winter and fall. Evidence of ineffective scavenging of RGM is provided due to the less frequent depletion of RGM during winter precipitation events in comparison with other seasons. RGM dry deposition estimates based on real time concentration …
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DIRECT AND INDIRECT MODIFICATION OF STREAM FLOW IN THE FLATHEAD RIVER BASIN IN NORTHWESTERN MONTANA: HYDROLOGIC PARAMETER DEVELOPMENT AND IMPLEMENTATION
… northwestern United States. The snowpack stores winter precipitation and releases it in the spring. This snowmelt-dominated streamflow is used by agriculture, municipalities and water-reliant ecosystems. Chapter 1 considered the response of unmodified snowmelt-dominated streamflow to climate …
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DIRECT AND INDIRECT MODIFICATION OF STREAM FLOW IN THE FLATHEAD RIVER BASIN IN NORTHWESTERN MONTANA: HYDROLOGIC PARAMETER DEVELOPMENT AND IMPLEMENTATION
… northwestern United States. The snowpack stores winter precipitation and releases it in the spring. This snowmelt-dominated streamflow is used by agriculture, municipalities and water-reliant ecosystems. Chapter 1 considered the response of unmodified snowmelt-dominated streamflow to climate …
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Variability in spring snowpack and winter atmospheric circulation pattern frequencies in the Peace River Basin
… 1992. Comparison analysis of spatial patterns of precipitation identified two distinct precipitation regimes, one in the north and one in the southern portion of the basin. Precipitation trends at Grande Prairie (south) indicate that a significant shift occurred after 1976 towards decreased …
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A modelling perspective on precipitationin the Indus River Basin: from synopticto Holocene variability
… to further interpret the archaeological context. Precipitation variability is investigated at various timescales due to their different impact on human societies and their importance in the climate system: the synoptic scale, the seasonal cycle, the inter-annual to multi-decadal variability, and …
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