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Articles 15601 - 15630 of 16422
Full-Text Articles in Physical Sciences and Mathematics
Vims-Blm Second Order Wave Climate Model And Wave Climatology Of Baltimore Canyon Trough Shelf Area, Victor Goldsmith
Vims-Blm Second Order Wave Climate Model And Wave Climatology Of Baltimore Canyon Trough Shelf Area, Victor Goldsmith
Reports
The Wave Climate Model of the Baltimore Canyon Trough Shelf area encompassing the designated lease blocks was extended, refined, and comparisons made with real wave data, as part of this year's contract (Figures 15-la and 15-lb). This modified model w.as produced to refine the 1975 model so that more definitive statements and interpretations could be concluded, based on more detailed data, in the evaluation of the baseline data. A set of computer-generated graphics utilizing a greater depth data point density (0.25 NM), to al.low site-specific evaluation of conditions within the lease block area, were produced.
Feeding Morphologies And Distribution Patterns Of Marine Cladocera In The Lower Chesapeake Bay, Sandra Layne Gilchrist
Feeding Morphologies And Distribution Patterns Of Marine Cladocera In The Lower Chesapeake Bay, Sandra Layne Gilchrist
OES Theses and Dissertations
Temporal and spatial distributions of marine cladocera in the lower Chesapeake Bay estuary were observed over a year-long sampling period. The distributions of cladoceran species throughout the Bay were studied in relation to temperature and salinity. A survey of the species over the entire Bay is included to establish distribution patterns of the various species during a short time period.
Theoretical mathematical principles were used to predict feeding abilities of the Bay species. Mouthparts are described qualitatively and quantitatively to infer function. A mandibular index developed by Itoh (1970) was revised and employed in evaluating feeding methods interspecifically and interspecifically. …
The Spatial And Temporal Distribution Of Fish Eggs And Larvae In Hempstead Bay Estuary, Joseph Adelard Lessard
The Spatial And Temporal Distribution Of Fish Eggs And Larvae In Hempstead Bay Estuary, Joseph Adelard Lessard
OES Theses and Dissertations
The ichthyoplankton of Hempstead Bay estuary was sampled from December 1972 to mid March 1974. Eleven stations were sampled by towing a 0.5 meter diameter plankton net. Eggs were most abundant during June and July with an average concentration calculated to be above 5,500/100m3. Egg densities were the lowest during the fall and winter. Larvae were most frequently taken from March through July with densities varying greatly among the samples. The eggs of Brevoortia tyrannus, Anchoa mitchilli, Tautoga onitis, Tautogolabrus adspersus, and Scophthalmus aguosus and the larvae of Menidia menidia, Ammodvtes hexapterus and Pseudopleuronectes americanus constituted most …
Volume 3, Number 6 (June 1979), The Solar Ocean Energy Liaison
Volume 3, Number 6 (June 1979), The Solar Ocean Energy Liaison
The OTEC Liaison
No abstract provided.
Ua66/8/2 Climatological Summary: Barren River Area Development District, Wku Kentucky Climate Center, Glen Conner, Robert Sanderson, Robert Ashby, J. M. Phipps
Ua66/8/2 Climatological Summary: Barren River Area Development District, Wku Kentucky Climate Center, Glen Conner, Robert Sanderson, Robert Ashby, J. M. Phipps
WKU Archives Records
This document summarizes and analyzes the climate of the Barren River Area Development District, discusses seasonal variance and trends, and provides examples of the application of climatological data to climate related or induced problems. By using this document, planners can identify climate related problems, assess the probability of occurrence, develop recommended courses of action, and assist local governments in their planning efforts.
Volume 3, Number 5 (May 1979), The Otec Liaison
Volume 3, Number 5 (May 1979), The Otec Liaison
The OTEC Liaison
No abstract provided.
Ua66/8/2 Severe Storms In Kentucky 1959-1977, Wku Climate Center, Glen Conner, Robert Ashby
Ua66/8/2 Severe Storms In Kentucky 1959-1977, Wku Climate Center, Glen Conner, Robert Ashby
WKU Archives Records
Kentucky Climate Center report Number 18 Severe Storms in Kentucky, 1959-1977.
Gloucerstermen: Before And After "The Law", William S. Weber
Gloucerstermen: Before And After "The Law", William S. Weber
Marine Affairs Theses and Major Papers
Gloucester has been renowned for its leadership in the fishing industry since colonial days. From the first failure of the Dorchester Company at Stage Fort to the subsequent glories of the schooner fleets, the story has been told in fact, fiction, poetry, and painting. The literature brings to life the beauty of the place, the dangers of the sea,and the character building of those who contested life in the North Atlantic. Most of our recorded material deals with the exploits of Yankees, Portuguese, Scandinavians, and Nova Scotians. Today, and in the immediate past, it is the Italian-American fishermen who dominate …
Ua66/8/2 Growing Season In Kentucky 1948-1977, Wku Kentucky Climate Center, Glen Conner, Robert Sanderson
Ua66/8/2 Growing Season In Kentucky 1948-1977, Wku Kentucky Climate Center, Glen Conner, Robert Sanderson
WKU Archives Records
Kentucky Climate Center report number 21 Growing Season in Kentucky
Ua66/8/2 Heating Degree Days In Kentucky 1951-1977, Wku Kentucky Climate Center, Glen Conner, Robert Sanderson
Ua66/8/2 Heating Degree Days In Kentucky 1951-1977, Wku Kentucky Climate Center, Glen Conner, Robert Sanderson
WKU Archives Records
Kentucky Climate Center report no. 20 Heating Degree Days in Kentucky, 1951-1977.
Volume 3, Number 4 (April 1979), The Otec Liaison
Volume 3, Number 4 (April 1979), The Otec Liaison
The OTEC Liaison
No abstract provided.
Changing Fields: Agricultural Land Use Changes In Nebraska 1925-1974, Donald A. Wilhite
Changing Fields: Agricultural Land Use Changes In Nebraska 1925-1974, Donald A. Wilhite
Drought Mitigation Center: Faculty Publications
The series of graphs and maps which follow illustrate agricultural land use changes in Nebraska from 1925 to 1974. With these graphs and maps, the major agronomic crops of corn (dryland and irrigated), wheat, sorghum and soybeans are analyzed. The purpose of this analysis is to provide a pictorial history of Nebraska's ever-changing cropping system and, hopefully, to stimulate ideas and discussion with regard to trends and future directions. The Nebraska Water Resources Center is deeply interested in both the past and the future of Nebraska's agriculture because of the demands which agriculture places on the state's water resources. An …
Some Trends In Forecast Skill At The National Severe Storms Forecast Center, Allen Pearson, Steven J. Weiss
Some Trends In Forecast Skill At The National Severe Storms Forecast Center, Allen Pearson, Steven J. Weiss
United States Geological Survey: Staff Publications
Tornado watch and severe local storm outlook verification statistics reveal the trends in forecast skill at the National Severe Storms Forecast Center. The skill level of the outlook has been steadily increasing since 1973. The percentage of watches verifying has been gradually increasing since 1970. While the probability of detection for tornadoes has decreased slightly since 1974, this appears to be highly correlated with the number of outbreak tornadoes reported in a given year. During significant tornado days, a much higher degree of skill is exhibited for both outlooks and watches. Factors influencing the results are discussed, including the impact …
"The Global Hope Is Around": An Incident At Salem Sound, K. W. Mathews
"The Global Hope Is Around": An Incident At Salem Sound, K. W. Mathews
Marine Affairs Theses and Major Papers
On February 6, 1978, in the midst of the worst blizzard to hit the Northeast in 100 years, the 682-foot Greek tanker GLOBAL HOPE with more than 340,000 gallons of oil aboard, dragged her anchor and grounded in Salem Sound, Massachusetts, about 15 miles from downtown Boston. An estimated 83,000 gallons of oil escaped the stricken vessel to be deposited on two of the most historic and picturesque coastlines of Massachusetts. Some 2.4 million dollars were expended from the federal pollution fund in cleanup efforts. This paper relates the chronology of events and examines peculiar problems, planning, and response activities …
Study Of Cumulative Growth-Inhibiting Factors In Recycled Water For Catfish Cultivation, R. W. Raible
Study Of Cumulative Growth-Inhibiting Factors In Recycled Water For Catfish Cultivation, R. W. Raible
Technical Reports
Channel catfish were grown in tanks with integral biological filters and complete recirculation of water. After the fish had resided in the tanks for 120 days, solvent extraction was performed on a portion of the tank water. Fresh pond-raised specimen channel catfish showed decreases in their heartbeat rates of about 20 percent when exposed to the extract. This metabolic disturbance is thought to be a factor in reducing the growth rate of fish held in close confinement in recirculating systems.
Production Of A Population Of The Stout Razor Clam (Tagelus Plebeius Solander) In A Virginia Estuary, Mark James Grussendorf
Production Of A Population Of The Stout Razor Clam (Tagelus Plebeius Solander) In A Virginia Estuary, Mark James Grussendorf
OES Theses and Dissertations
The annual net secondary production of the stout razor clam, Tagelous plebeius, was estimated at three sites on an intertidal sand flat at Lynnhaven Inlet, Virginia. Samples were taken at six week intervals for one year. The range of net production (P), mean annual biomass (B), and P/B ratios was 18.3-28.7 g m-2year-1, 27.2-53.3 g m-2, and 0.54-0.67, respectively. The total biomass did not show significant seasonal variation though differences between sites were significant. Production varied temporally but was not significantly different between sites.
Turbulence Spectra In A Well-Mixed Estuary, Jong Yul Chung
Turbulence Spectra In A Well-Mixed Estuary, Jong Yul Chung
OES Theses and Dissertations
This dissertation is an attempt to determine and describe some of the turbulent process in a well-mixed estuary. The processes are identified by the study of turbulent velocity fluctuations. These velocity records have been analyzed using standard digital methods to obtain spectral density, spectral energy, and cross-spectra of velocity. In order to study the generation and transfer of the turbulent moment and energy, and the intermittent nature of the so-called "Bursting or "ejections and sweeps," the distribution of u, v, w, and the Reynolds stress has been studied.
Volume 3, Number 3 (March 1979), The Otec Liaison
Volume 3, Number 3 (March 1979), The Otec Liaison
The OTEC Liaison
No abstract provided.
Volume 3, Number 2 (February 1979), The Otec Liaison
Volume 3, Number 2 (February 1979), The Otec Liaison
The OTEC Liaison
No abstract provided.
Lake Mead And Lake Powell Salinity Reports, Cathy Lee, Steve Gazafy
Lake Mead And Lake Powell Salinity Reports, Cathy Lee, Steve Gazafy
Publications (WR)
The enclosed reports were compiled for the Colorado River Water Quality Office based on salinity data for Lake Mead and Lake Powell. According to the regional director of the office, the reports are not considered "polished" documents for public distribution. However, he considers them to be "interesting, rough appraisals of general trends that may be very important In our understanding the hydro-salinity system in the Colorado River."
Geology Of The Mafic/Ultramafic Transition, Table Mountain, Western Newfoundland, Suzanne O'Connell
Geology Of The Mafic/Ultramafic Transition, Table Mountain, Western Newfoundland, Suzanne O'Connell
Geology Theses and Dissertations
A thin (<200 m.) mafic suite and well developed mafic/ultramafic transition zone are exposed above a flat lying peridotite contact on northwestern Table Mountain. The igneous layering and sedimentary features indicate mineral deposition under conditions which promoted adcumulate growth, were capable of minor transport, and were subjected to at least minor tectonic activity during consolidation. Feldspathic,. mafic, and ultramafic dikes and veins cross-cut the layering. Microscopic futures indicate deformation at elevated temperature and/or low strain rates. Deformation is best developed within the transition zone, but cataclastic zones are most common in the hornblende gabbros. Orientations of layering, foliation, and lineation indicate a variable mafic/ultramafic transition and macroscopic folding. Geometric analysis indicates three distinct fold axis orientations: an east-west horizontal fold axis, a northeast trending modestly plunging axis, and a vertical though poorly defined axis. Such features demonstrate that an apparently simple contact relationship may be extremely complex. This has important implications for ocean floor accretion. The relatively simple ocean floor seismic stratigraphy masks very complex petrological and structural processes. Such processes may involve deposition in an actively convecting magma chamber with a differentially subsiding wedge (Dewey and Kidd, 1977), in which folding occurs in response to the steepening angle between the cumulate banding and the base of the magma chamber. The instability is enhanced by the different accumulation rates and densities of the minerals involved. The lineation may originally be a sedimentary feature indicative of transport direction from the convection cell, and perpendicular to the compressive stress which produced. the folding. The different orientations of lineations and fold axes could be produced by rotation of the ocean crustal blocks during lateral transport along the ocean floor and/or obduction. Further detailed study of ophiolite complexes will continue to shed light upon the nature and development of oceanic crust.
Paleoclimatic Implications Of Oxygen Isotope And Sedimentological Study Of Late Miocene And Early Pliocene Sediments From The South Atlantic, Western Indian Ocean, And The Gulf Of Aden, Kathryn M. Scanlon
Geology Theses and Dissertations
Previous work by many authors has implied that the Antarctic ice sheet underwent a major expansion in the latest Miocene. It was intended in the present study to use the oxygen isotope event, which could be expected to accompany this glacial expansion, as a stratigraphic marker to aid in the correlation of several DSDP Sites. Samples were taken at approximately 100,000 year intervals throughout the latest Miocene and early Pliocene sections at Sites 237 and 249 in the western Indian Ocean, Site 360 in the South Atlantic and Site 231 in the Gulf of Aden. Oxygen isotope analyses were done …
Barley Yellow Dwarf Virus In Barley And Oats (79mt20, 79pe13) Experimental Summary 1979, G D. Mclean, T N. Khan, M Grimm, J D. Sandow
Barley Yellow Dwarf Virus In Barley And Oats (79mt20, 79pe13) Experimental Summary 1979, G D. Mclean, T N. Khan, M Grimm, J D. Sandow
Experimental Summaries - Plant Research
(1) Yield assessments have continued similar to those used in 1977 and 1978. Essentially, plants with symptoms typical of BYDV are marked in the early spring as well as a similar number without symptoms. Yield differences were obtained both for Clipper Barley and an oats variety. (2) Two pilot experiments using viruliferous aphids were carried out at Mount Barker (79MT20) and at South Perth · (79PE13). Both Rhopalosiphum padi and R. maidis were used. Infection at Mt Barker failed, and therefore no data is presented. The Perth experiment was planted on August 31, 1979. The original plan was to have …
Summary Research Results 1979, G A. Pearce
Summary Research Results 1979, G A. Pearce
Experimental Summaries - Plant Research
DPX4189 for weed control in wheat 79N27. Location - Toodyay. Herbicide mixtures for broadleaved weeds in wheat. Location - Toodyay. Diuron mixtures for broad leaf weeds in cereals. Location - "Glencoe" C/- P.O. Bindoon. Herbicides for early planting 79MO42. Location – N. Tonkin – Coomberdale. Broad leaf weeds in cereals 79MO45. Location - Miling (J. Lewis, Plympton). Herbicides for early planting 79LG27. Location – Karlgarin.
Experimental Summary 1979, J R. Peirce
Experimental Summary 1979, J R. Peirce
Experimental Summaries - Plant Research
Contents 79ME28 Soursob (Oxalis caprae) control along Roadsides. 79NO30 A & B.
79NO29 Pre and post emergent applications of Diuron for soursob control in cereals.
79ME31 Post emergent control of soursob in cereals. 79NO39
79ME26 A & B Control of Matricaria (Pentzia sp.) in cereals.
79NO40 Dormancy of Cape Tulip (homeria sp.).
79NO38 Patersons curse (Echium plantagineum) Control in pastures. Afghan thistle (solanum hoplopetalum) Control in pastures. 79ME28 and 79N030 A & B Soursob Control Along Roadsides. Chemicals: Roundup 1, 2 and 3 1ha-1, Diuron 1, 2 and 3 1ha-1, Sencor TD 1, 2 and 3 kgha -1 ) applied …
Summary Of 1979 Field Experiments, M L. Poole
Summary Of 1979 Field Experiments, M L. Poole
Experimental Summaries - Plant Research
79WH50: Effect of time of planting x cultural systems x herbicides on wheat yields - Wongan Hills Research Station. 79M34: Effect of time of planting x cultural systems x herbicides on wheat yields – Merredin Research Station. 79C31: Effect of time of planting x cultural systems x herbicides on wheat yields - Chapman Research Station. 79WH58: Rates of ryegrass x rates of nitrogen on wheat Yield. 79WH57: Rates of CCC and rates of nitrogen on yield of Wheat.
1979 Field Crops Experiments, P. Mcr. Wood
1979 Field Crops Experiments, P. Mcr. Wood
Experimental Summaries - Plant Research
Field crops experiments resistance of lupins to Phomopsis leptostromiformis. (P.McR. Wood, Plant Research Division, J. Hamblin, Plant Production Division). Stage 1-2 Plant Breeders' Plots. Phomopsis infection of 96 entries (replicated) was assessed just prior to harvest at seven sites - Chapman Valley Research Station (CVRS), Badgingarra Research Station (BRS), Wongan Hills Research Station (WHRS), Avondale Research Station (ARS), Mount Barker Research Station (MBRS), Esperance Downs Research Station (EDRS) and on a farmer's property at Eradu. At four sites, CVRS, Eradu, MBRS and EDRS, only very low levels of infection were apparent. At the other three sites, the currently available varieties …
Summary Of Experimental Results 1979 - Annual Rye Grass Toxicity, D L. Chatel
Summary Of Experimental Results 1979 - Annual Rye Grass Toxicity, D L. Chatel
Experimental Summaries - Plant Research
79KA15 The susceptibility of grasses to yellow slime disease
79KA16 The effect of gall burial on gall and slime production by annual rye grass sown into land with a history of ryegrass toxicity The effect of bacterial galls on development of slime and galls on ryegrass inoculated with nematode galls
Low Cost Cereal Herbicides - Pasture Manipulation - Annual Ryegrass Toxicity - Herbicides For Direct Drilling - Hoegrass Application Methods - Annual Ryegrass Herbicides, J E. Holmes
Experimental Summaries - Plant Research
79N46 Possible cereal herbicides – low cost mixtures, Tincurrin 79MO52 Possible cereal herbicides – low cost mixtures, Bolgart 79KA46 Possible cereal herbicides – low cost mixtures, Katanning 79NA39 Pasture manipulation – barley grass control 79NO28 Pasture manipulation, Goomalling 79MO50 Pasture manipulation – grass reduction – examination of known systems, Moora 79AR47 Pasture manipulation – grass control and herbicide residues, South Sterlings 79BA57 Pasture manipulation – rates of herbicides, Badgingarra Research Station 79A31 Pasture manipulation – grass reduction, Avondale Research Station 79KA47 Spraytop – Graze – control of annual ryegrass toxicity, Katanning 79BA56 Herbicides for direct drilling, Badgingarra Research Station 79A30 …
Volume 3, Number 1 (January 1979), The Otec Liaison
Volume 3, Number 1 (January 1979), The Otec Liaison
The OTEC Liaison
No abstract provided.