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 273 for “"temporal variation"”.
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Spatial and temporal variation in precipitation pattern
… scale to identify any statistically significant temporal patterns of change using observed data. The year is divided into four seasons and all the comparisons are made seasonal as well as yearly. The day with a precipitation greater than 0.1 mm is considered as a rainy day. Here we show that …
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Temporal variation in stream embeddedness and aquatic habitat
… spatially limited and often do not consider temporal variability. Recent studies have developed models for remotely predicting the average embeddedness at the network scale via its relationship with bankfull shear velocity. However, stream flow conditions and environmental factors are never …
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Spatial and temporal variation of the phytoplankton in Cayuga Lake
… August 1973. The objectives were to: a) describe variation in nutrient parameters in vertical and horizontal space, within years, and historically where data were available, b) describe the phytoplankton (pigment, biomass, and species composition) along the same dimensions, c) analyze the …
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Temporal variation in fruit-feeding forest butterfly communities in Sabah, Borneo.
This study investigated temporal variation in fruit-feeding butterfly communities in Sabah, Borneo. Fruit-baited traps were used to sample butterflies in primary forest and forest that had been selectively logged 11-12 years previously in 1988 and 1989. Traps were hung 1-2m from the ground along …
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Video Scene Understanding: Semantic-based representation, Temporal Variation Modeling, Multi-Task Learning
… information content of videos, (ii) modeling temporal variation of frame-based descriptors in videos, and (iii) proposing a multitask learning framework to leverage the huge amount of unlabeled videos. The first category covers a method for enriching visual words that contain local motion …
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Spatial and Temporal Variation of Wind Above and Within a Soybean Canopy
Made available in DSpace on 2014-12-12T00:17:44Z (GMT). No. of bitstreams: 1 7121207.pdf: 2797517 bytes, checksum: c57fd469a4acd2292538198acdab7386 (MD5) Previous issue date: 1971
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Lateralization of Sinusoidally - Amplitude-Modulated Tones: Effects of Spectral Locus and Temporal Variation
… to evaluate, as a function of spectral locus and temporal variation, the lateralization of sinusoidally-amplitude-modulated tones. An acoustic pointing task was employed in which listeners varied the interaural intensitive disparity of a narrow band of noise (the pointer) so that it matched the …
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Spatial and temporal variation in virtual water transfers on the U.S. electric grid
Submission published under a 24 month embargo labeled 'U of I Access', the embargo will last until 2027-05-01
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An analysis of spatial and temporal variation in fecal indicator concentrations in Singapore
… indicator concentrations to describe spatial and temporal patterns of four fecal indicators: E. coli, enterococci, total coliform, and human factor. Twenty twelve-hour time series were examined, with indicator concentrations measured every hour from 8 am to 7 pm. Six stations in Singapore were …
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Temporal variation, regional sources, and removal processes of volatile organic compounds in New England
<p>This dissertation describes three research projects with the common objective of characterizing the influence of volatile organic compounds (VOCs) on air quality in New England using measurements made over multiple years (2002-2008) and from different sampling locations. The specific objectives …
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Spatial and Temporal Variation in Lake Huron Yellow Perch (Perca flavescens) Life History Traits
… yellow perch population structure changed temporally over the course of the major ecosystem shift in the early 2000s, where invasive mussels decreased zooplankton and benthic invertebrate abundance, altered nutrient and energy distribution, and reduced lake productivity. Here, I used data …
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Incorporating Spatial and Temporal Variation of Watershed Response in a GIS-based Hydrologic Model
… would be improved by accounting for spatial and temporal variation of excess rainfall. Three models with different methods of estimating excess rainfall were developed: the Distributed Curve Number (DCN) model uses a CN for each cell, generating spatially distributed excess rainfall using the …
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From genes to species: Characterizing spatial and temporal variation in frog and toad multidimensional biodiversity
… is a complex concept encapsulating the variation that occurs within and among levels of biological organization. It is positively linked to ecosystem persistence, adaptability, and function. Biodiversity loss, driven by global change and human activities, is one of the most prominent …
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Temporal variation in the coral reefs of the east coast of the inner gulf of Thailand
A series of permanent line transects established on fourteen reefs on the eastern seaboard of the Gulf of Thailand were monitored through a three-year period (1995- 1998) using a video transect method. Hierarchical cluster analysis shows three distinctive reef community types dominated by 1) …
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Temporal variation in infection of male sardine (Sardinops sagax) by a coccidian testicular parasite (Eimeria sardinae)
Temporal variability in infection of South African male sardines (Sardinops sagax) by a testicular coccidian parasite Eimeria sardinae was examined between putative western and southern stocks of this fish species. Samples were collected by commercial vessels from five localities; Gansbaai, St …
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Spatio-Temporal Variation in Ringed Seal (Pusa Hispida) Density and Habitat Use in the Last Ice Area
… this thesis provides the first study on spatio-temporal variation in ringed seal density and habitat use in their northern most range in the Canadian High Arctic, highlighting the importance of bathymetry and marine terminating glaciers to the summer habitat use of ringed seals in the Last Ice …
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