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.
Results
Showing 1 to 20 of 35 for “"precipitation variability"”.
-
Precipitation variability and change over Morocco and the Mediterranean
… to strong seasonality and high inter-annual variability, annual precipitation remains low (<500mm) across much of the region. Furthermore, the situation is not expected to improve under climate change as models project a sustained decline in precipitation in the Mediterranean, most pronounced …
-
Investigating the Influence of Interannual Precipitation Variability on Terrestrial Ecosystem Productivity
This study investigated the impact of interannual precipitation variability on above-ground terrestrial ecosystem productivity in the Hulunbuir ecosystem, using time series analysis, regression analysis, and machine learning models. The study's primary goal was to enhance our understanding of the …
-
The role of biosphere-atmosphere-ocean interactions in regulating precipitation variability over West Africa
Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Civil and Environmental Engineering, 2000.
-
Addressing Water Resource Issues In Barbados Through An Isotopic and Atmospheric Characterization of Precipitation Variability
… at a weekly resolution. The amountweighted precipitation δ<sup>18</sup>O values were calculated on a monthly basis and compared to TRMM monthly rainfall and island-wide monthly rainfall, and a statistically significant negative correlation was found between both datasets. This confirmed that …
-
Hydroclimate variability in Central America during the Holocene inferred from lacustrine sediments in Lake Izabal, eastern Guatemala
… our understanding of the mechanisms controlling precipitation in Central America. Recent hydroclimate proxy records from the region, however, have revealed considerable spatiotemporal complexity in precipitation variability. This complexity is hypothesized to result from the interaction between …
-
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 …
-
Influence of the North Atlantic Subtropical High on Summer Precipitation over the Southeastern United States
… developing regions of the nation, where summer precipitation becomes increasingly important to sustain population and economic growth. In recent decades, the variability of SE US summer precipitation has significantly intensified, leading to more frequent and severe climate extremes. However, …
-
Assimilation of Seasonal Moisture Variability in North America and Asia for the Last Millennium
… used to reconstruct the North America Seasonal Precipitation Atlas (NASPA) by the point-by-point regression method, and the results indicated that they can fairly reproduce the seasonal precipitation variability in the past. Compared with reconstructions using only paleoclimate proxy data, the …
-
Paleo-aridity records investigated through drip water chemistry in Lehman Caves, Nevada
… climate change is predicted to cause increased precipitation variability, making the future climate of the region uncertain. The paleoclimate record has direct examples of dramatic changes in water availability in this area, allowing for a comparison of precipitation changes and responses for …
-
An Observational and Modeling Study of the Relationships Between United States Precipitation and Pacific Sea Surface Temperature
… modeling study was to simulate summertime U.S. precipitation in response to prescribed North Pacific SST anomalies, related to Great Plains precipitation. Summer precipitation is enhanced throughout the U.S. due to SST anomalies. The increase in precipitation is caused by enhanced low-level …
-
Influence of spatially variable precipitation on passive margin escarpment evolution
… topographically-controlled spatially varying precipitation. Precipitation reaches a maximum in the escarpment foothills and decreases sharply with elevation. Using a numerical landscape evolution model, I simulate the effects of coupled climate and topography on an idealized escarpment, …
-
Effects of climate change on plants and ecosystem functioning : Implications for managed temperate grasslands
… climate change (such as 1000-year drought, high precipitation variability, seasonal warming, late frost in spring etc.) affects flowering phenology, plant physiology, community composition, legume facilitation, plant nitrogen (N) and soil N status in managed temperate grasslands are lacking. It …
-
Verification of Satellite Derived Precipitation Estimates Over Complex Terrain: A Ground Truth Analysis for Nepal
Precipitation estimates from the satellite-based Tropical Rainfall Measuring Mission (TRMM) instrumentation play a key role in flood analysis and water resource management across many regions of the world where rain gauge data are sparsely available. Previous studies have produced conflicting …
-
Investigating Mexican paleoclimate with precisely dated speleothems
… mid-Holocene record of high rainfall and limited precipitation variability in the Yucatan Peninsula, Mexico. Chapters 3 and 4 present novel climate records from northeastern Mexico, an understudied region of North America. Both records come from cave sites within the Mexican arid zone, which is …
-
Investigating Mexican paleoclimate with precisely dated speleothems
… Holocene record of high rainfall and limited precipitation variability in the Yucatan Peninsula, Mexico. Chapters 3 and 4 present novel climate records from northeastern Mexico, an understudied region of North America. Both records come from cave sites within the Mexican arid zone, which is …
-
Impacts of climate changes on the spatiotemporal distribution of precipitation in the western United States
<p>Precipitation in the Intermountain West is characterized by its great variability in both spatial and temporal distributions. Moreover, the spatiotemporal distribution of the precipitation is changing due to the climate changes. In this dissertation, three studies are conducted to investigate …
-
The Influence of the North Atlantic Subtropical High on Atmospheric Rivers Over the Eastern United States
… moisture transport often connected to heavy precipitation and mid-latitude troughs. The NASH, a semi-permanent anticyclone over the subtropical North Atlantic Ocean, has been shown to be significantly influential on precipitation variability over the southeastern United States. A …
-
Recent changes in the variability and seasonality of temperature and precipitation in the Northern Hemisphere
This study investigates recent changes in the variability and seasonality of temperature and precipitation in the Northern Hemisphere. The mean and variance of daily temperature and precipitation anomalies are calculated for each year over a 35-year period and compared to a base period. For …
Page 1 of 2