6,957 research outputs found
Evidence for multidecadal variability in US extreme sea level records
No full textWe analyze a set of 20 tide gauge records covering the contiguous United States (US) coastline and the period from 1929 to 2013 to identify long-term trends and multidecadal variations in extreme sea levels (ESLs) relative to changes in mean sea level (MSL). Different data sampling and analysis techniques are applied to test the robustness of the results against the selected methodology. Significant but small long-term trends in ESLs above/below MSL are found at individual sites along most coastline stretches, but are mostly confined to the southeast coast and the winter season when storm surges are primarily driven by extratropical cyclones. We identify six regions with broadly coherent and considerable multidecadal ESL variations unrelated to MSL changes. Using a quasi-nonstationary extreme value analysis, we show that the latter would have caused variations in design relevant return water levels (50–200 year return periods) ranging from ?10 cm to as much as 110 cm across the six regions. The results raise questions as to the applicability of the “MSL offset method,” assuming that ESL changes are primarily driven by changes in MSL without allowing for distinct long-term trends or low-frequency variations. Identifying the coherent multidecadal ESL variability is crucial in order to understand the physical driving factors. Ultimately, this information must be included into coastal design and adaptation processes
Climate controls multidecadal variability in U. S. extreme sea level records
No full textWe investigate the links between multidecadal changes in extreme sea levels (expressed as 100 year return water levels (RWLs)) along the United States coastline and large-scale climate variability. We develop different sets of simple and multiple linear regression models using both traditional climate indices and tailored indices based on nearby atmospheric/oceanic variables (winds, pressure, sea surface temperature) as independent predictors. The models, after being tested for spatial and temporal stability, are capable of explaining large fractions of the observed variability, up to 96% at individual sites and more than 80% on average across the region. Using the model predictions as covariates in a quasi nonstationary extreme value analysis also significantly reduces the range of change in the 100 year RWLs over time, turning a nonstationary process into a stationary one. This suggests that the models—when used with regional and global climate model output of the predictors—will also be capable of projecting future RWL changes. Such information is highly relevant for decision makers in the climate adaptation context in addition to projections of long-term sea level rise
8.07.001: "The Pink, White and Green" dedicated to Don Walsh by Al Pittman, February 1999
No full textSigned by the author. While this copy is dedicated to Don Walsh, the original poem was dedicated to his brother Des, as indicated below the title
Texas Cleaver
No full textA journalist, author, and politician, Biggers was born September 27, 1868, in Meridian, Texas, and grew up in a ranching environment. He edited and wrote for several West Texas newspapers, served in the Texas Legislature, and was active in land promotion in West Texas and Eastern New Mexico. He authored several books, including History That Will Never Be Repeated (1901), Pictures Of The Past (1902) [both under the pen name Lan Franks], Cattle Range To Cotton Patch (1905), Shackelford County Sketches (1908), and Our Sacred Monkeys (1933). Don Hampton Biggers died at a rest home in Stephenville on December 11, 1957, a month after his wife's death, Nettie.Volume 3. Number 11
Featured Speaker, Dr. Jennifer Chambers
No full textFeatured Speaker Dr. Jennifer Chambers
Associate Professor of Education, University of the Cumberlands Thursday, March, 28th at 11:00 amSodexo Ballroom, Morris University Center
Don\u27t Place Your Diploma on a Shelf
We are all born with a desire for exploration, but some people lose their sense of adventure along the way and just become content. There\u27s nothing wrong with being content, it\u27s definitely fine for some people because being content usually also comes with feeling safe. I was content teaching third grade. I had tenure, so I felt safe, but if I had just settled for content and safe, I would have never discovered my love for the unknown. I would have always wondered - what if? I may have never truly known myself and what I was capable of achieving. So... don\u27t place your diploma on a shelf and settle for content and safe. Go out there and satisfy your sense of wonder
Don Gale, author of Francie and the Basket Women,holding a copy of the book, Stephenville
No full textDon Gale, author of Francie and the Basket Women, holding a copy of the children's book which is set in Newfoundland and tells the tale of a little girl, Francie, who runs away from the dentist and hops aboard a train. While on the train Francie meets several basket makers, one of which cure her tooth ache
Billy Goat
No full textA journalist, author, and politician, Biggers was born September 27, 1868, in Meridian, Texas, and grew up in a ranching environment. He edited and wrote for several West Texas newspapers, served in the Texas Legislature, and was active in land promotion in West Texas and Eastern New Mexico. He authored several books, including History That Will Never Be Repeated (1901), Pictures Of The Past (1902) [both under the pen name Lan Franks], Cattle Range To Cotton Patch (1905), Shackelford County Sketches (1908), and Our Sacred Monkeys (1933). Don Hampton Biggers died at a rest home in Stephenville on December 11, 1957, a month after his wife's death, Nettie."The Billy Goat : Always Buttin' In.""Published Every Time the Signs are Right which Zodiac Event Occurs About Four Times a Month at Rotan, Fisher County, Texas" -- Cover
Agri-environmental Regulation on the Back of a Data Envelopment Analysis
No full textA land retirement policy whereby land is taken out of agriculture and converted to natural vegetation or forestry has the potential to reduce environmental damage related to dryland salinity in Western Australia. This paper uses some recent results in the theory of directional distance functions (Chambers and Fare, 2004) to analyse alternative policy designs for a land retirement scheme. The results indicate that a fixed price scheme is inefficient compared with a first-best solution, but performs adequately. A scheme requiring a fixed proportion of area retired by all producers is inefficient. A separating solution, based on mechanism design, gives a small but significant increase in welfare compared to a fixed price scheme.Agri-environmental policy, distance functions, efficiency, mechanism design, Environmental Economics and Policy, Q12,
Historical Fiction Author Don Neal Discusses Cold War Activities in Alaska
No full textDuring the Cold War, the USA was concerned that Russia would invade Alaska and American intelligence officers created the Stay Behind Agent Program to counter. At this event, Don Neal, author of the Ben Hunnicutt series that includes Cross Kill, Warhead, and washtub Gold, discusses the Nike missile system, the top-secret anti-espionage campaign Operation Washtub, and other Cold War activities in Alaska
Low-input fermentations of agave tequilana leaf juice generate high returns on ethanol yields
No full textDuring tequila production, up to 75 % w/w of the Agave plant is discarded when leaves are removed from the stem. The discarded leaves represent an extensive amount of unexploited biomass that was used here for bioethanol production in no-input fermentations, where no acid or enzymatic hydrolysis, supplementation of nutrients or standardization of carbohydrate content occur. Ethanol yield from Agave leaf juice is unaffected by sterilization but reduced if fermentation is reliant solely on endogenous microorganisms. Non-Saccharomyces yeasts, including Kluyveromyces marxianus and Candida akabanensis, proved to be more robust than standard Saccharomyces spp. and yielded up to 88 % of the theoretical maximum ethanol from leaf juice. Combining leaf and stem juice, as from a whole plant, was predicted to maximize yield at up to 19,439 L/ha of ethanol from mature plants.Kendall R. Corbin, Natalie S. Betts, Nick van Holst, Vladimir Jiranek, Don Chambers, Caitlin S. Byrt, Geoffrey B. Fincher, Rachel A. Burto
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