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 8 of 8 for “"Degree day model"”.
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Influence of environmental conditions on the age, hatch dates, and growth of juvenile Atlantic menhaden in the Choptank River, MD
… (ear-stone) increment analyses and growth models. For 2010-2013, truncated hatch-date distributions provided evidence for a winter recruitment bottleneck in Atlantic menhaden caused by cold temperatures. Hatch-dates of surviving juveniles were skewed towards warmer months for years …
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Glacier retreat and projected river regime changes in the hydrologically highly-coupled Virkisjökull catchment, SE Iceland
… These data calibrate a distributed hydrological model (WaSIM) to project potential river regime during stages of glacier retreat. Results show: (1) glacier hypsometry sensitizes the catchment to a disproportionately rapid increase in runoff as the snowline rises resulting in a potential annual …
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Combining smart model diagnostics and effective data collection for snow catchments
… risk management. Good explanatory power of flood models requires a meaningful representation of bio-physical processes. Therefore great interest exists to improve the process representation. Progress in hydrological process understanding is achieved through a learning cycle including critical …
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The response of Hagafellsjökull Vestari glacier, Iceland, to future climate scenarios computed with a dynamic glacier flowline model coupled to a degree-day mass balance model
A dynamic glacier flowline model is coupled to a degree-day mass balance model with the purpose of modelling the response of Hagafellsjökull vestari glacier to future climate change scenarios. The degree-day mass balance model is calibrated using mass balance measurements for the period 1997-2007. …
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Biology and pest status of brown marmorated stink bug (Hemiptera: Pentatomidae) in Virginia vineyards and raspberry plantings
… border than interior section of vineyards. A degree-day model suggested that there were enough degree-days to complete a generation of H. halys in Virginia vineyards. H. halys caused direct injury to the grape berries at veraison and pre-harvest berries. Injury expression in the veraison berry …
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Modelling meltwater drainage in the Paakitsoq region, western Greenland, and its response to 21st century climate change
… formulation of ice dynamics in current ice-sheet models was identified as the largest source of uncertainty in SLR projections in the latest IPCC AR4 report. This thesis focuses on the supraglacial and subglacial hydrology of the Paakitsoq region in western Greenland to provide an insight into …
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Biology of Laricobius nigrinus Fender (Coleoptera: Derodontidae) and its potential as a biological control agent of the hemlock woolly adelgid, Adelges tsugae Annand (Homoptera: Adelgidae) in the eastern United States
… linear regression equations to the x-intercept. Degree-days calculated for eggs, larvae, pre-pupae, pupae, and egg to adult were 54.6, 161.3, 196.1, 212.8, and 666.7, respectively. The laboratory derived degree-day model for predicting egg hatch was validated with field data collected in British …
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Wobbly winds in an ice age : the mutual interaction between the great continental ice sheets and atmospheric stationary waves
… contributor to the stationary wave pattern in today's climate. As the ice sheet evolves, the patterns of temperature and winds due to the stationary wave change, and therefore the distribution of precipitation and ablation (melting) is altered over the ice sheet. These altered distributions will, …