Готові списки джерел за темами / Texas Brazos River

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Автор: Grafiati
Опубліковано: 26 липня 2024
Оновлено: 27 липня 2024

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Статті в журналах з теми "Texas Brazos River"

1

Waters, Michael R., and Lee C. Nordt. "Late Quaternary Floodplain History of the Brazos River in East-Central Texas." Quaternary Research 43, no. 3 (May 1995): 311–19. http://dx.doi.org/10.1006/qres.1995.1037.

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AbstractThe floodplain along a 75-km segment of the Brazos River, traversing the Gulf Coastal Plain of Texas, has a complex late Quaternary history. From 18,000 to 8500 yr B.P., the Brazos River was a competent meandering stream that migrated from one side of the floodplain to the other, creating a thick layer of coarse-grained lateral accretion deposits. After 8500 yr B.P., the hydrologic regime of the Brazos River changed. The river became an underfit meandering stream that repeatedly became confined within narrow and unstable meander belts that would occasionally avulse. Avulsion occurred four times; first at 8100 yr B.P., then at 2500 yr B.P., again around 500 yr B.P., and finally around 300 yr B.P. The depositional regime on the floodplain also changed after 8500 yr B.P., with floodplain construction dominated by vertical accretion. Most vertical accretion occurred from 8100 to 4200 yr B.P. and from 2500 to 1250 yr B.P. Two major and three minor periods of soil formation are documented in the floodplain sequence. The two most developed soils formed from 4200 to 2500 yr B.P. and from around 1250 to 500 yr B.P. These changes on the floodplain appear to be the result not of a single factor, but of the complex interplay among changes in climate, sediment yield, and intrinsic floodplain variables over time.
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Stull, Trevor, and Habib Ahmari. "Estimation of Suspended Sediment Concentration along the Lower Brazos River Using Satellite Imagery and Machine Learning." Remote Sensing 16, no. 10 (May 13, 2024): 1727. http://dx.doi.org/10.3390/rs16101727.

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This article focuses on developing models that estimate suspended sediment concentrations (SSCs) for the Lower Brazos River, Texas, U.S. Historical samples of SSCs from gauge stations and satellite imagery from Landsat Missions and Sentinel Mission 2 were utilized to develop models to estimate SSCs for the Lower Brazos River. The models used in this study to accomplish this goal include support vector machines (SVMs), artificial neural networks (ANNs), extreme learning machines (ELMs), and exponential relationships. In addition, flow measurements were used to develop rating curves to estimate SSCs for the Brazos River as a baseline comparison of the models that used satellite imagery to estimate SSCs. The models were evaluated using a Taylor Diagram analysis on the test data set developed for the Brazos River data. Fifteen of the models developed using satellite imagery as inputs performed with a coefficient of determination R2 above 0.69, with the three best performing models having an R2 of 0.83 to 0.85. One of the best performing models was then utilized to estimate the SSCs before, during, and after Hurricane Harvey to evaluate the impact of this storm on the sediment dynamics along the Lower Brazos River and the model’s ability to estimate SSCs.
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Gillespie, B. Marcus, and John R. Giardino. "Determining the migratory activity index for a river: An example from the Brazos River, Texas." Zeitschrift für Geomorphologie 40, no. 4 (December 12, 1996): 417–28. http://dx.doi.org/10.1127/zfg/40/1996/417.

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MUNSTER, C., C. MATHEWSON, and C. WROBLESKI. "The Texas A&M University Brazos River Hydrogeologic Field Site." Environmental & Engineering Geoscience II, no. 4 (December 1, 1996): 517–30. http://dx.doi.org/10.2113/gseegeosci.ii.4.517.

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5

Story, Gregory. "An introduction to the NWS West Gulf River Forecast Center." Texas Water Journal 7, no. 1 (July 12, 2016): 56–63. http://dx.doi.org/10.21423/twj.v7i1.7036.

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The National Weather Service (NWS) West Gulf River Forecast Center (WGRFC), in cooperation with numerous federal, state, and local government entities, uses the latest science and technology to provide timely and accurate river forecasts in an effort to protect life and property for most of the river drainages in Texas. Disaster preparedness decreases property damage by an estimated $1 billion annually nationwide. The mission is to provide basic hydrologic forecast information for the economic and environmental well-being for the nation. The WGRFC is 1 of 13 river forecast centers within the United States and is located in Fort Worth, Texas. The WGRFC’s area of responsibility stretches from the Rio Grande in southern Colorado, New Mexico and south Texas eastward to the Sabine River along the Texas-Louisiana border. Other rivers in the center’s area of responsibility include the Pecos, Nueces, San Antonio, Guadalupe, Colorado, Brazos, Trinity, and Neches rivers. This article will describe the variety of hydrologic forecasting services routinely provided by the WGRFC. Although flood forecasts are its most well-known product, the WGRFC also generates river and water information used for recreation, reservoir operations, and water supply plans. Additionally, the WGRFC produces estimates of hourly precipitation. To achieve this, the WGRFC has 2 primary functions; a hydrometeorological function and a hydrologic function. This article will describe each function and discuss how each function serves as steps in the preparation and the issuing of hydrologic forecasts. Citation: Story GJ. 2016. Program note: An introduction to the NWS West Gulf River Forecast Center. Texas Water Journal. 7(1):56-63. Available from: https://doi.org/10.21423/twj.v7i1.7036.
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Kubicek, Kole M., Amanda K. Pinion, and Kevin W. Conway. "New records of the Mountain Mullet, Dajaus monticola (Bancroft, 1834), and an overview of historical records in Texas." Check List 15, no. 3 (June 7, 2019): 471–78. http://dx.doi.org/10.15560/15.3.471.

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Dajaus monticola (Bancroft, 1834) is an amphidromous species of mugilid known from South and Central America and the islands of the Caribbean but is rarely collected in Gulf coast states of the United States. Two new records of D. monticola collected from the Gulf of Mexico (Brazoria Co.) and the Brazos River (Washington Co.) are reported from Texas. The rare occurrence of D. monticola in Texas is discussed and diagnostic characters used to distinguish this species from other mugilids found in Texas are reevaluated.
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Wurbs, Ralph A., and Tae J. Kim. "Condensing Water Availability Models to Focus on Specific Water Management Systems." Texas Water Journal 1, no. 1 (September 1, 2010): 20–32. http://dx.doi.org/10.21423/twj.v1i1.1380.

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The Texas Water Availability Modeling System is routinely applied in administration of the water rights permit system, regional and statewide planning, and an expanding variety of other endeavors. Modeling water management in the 23 river basins of the state reflects about 8,000 water right permits and 3,400 reservoirs. Datasets are necessarily large and complex to provide the decision-support capabilities for which the modeling system was developed. New modeling features are being added, and the different types of applications are growing. Certain applications are enhanced by simplifying the simulation input datasets to focus on particular water management systems. A methodology is presented for developing a condensed dataset for a selected reservoir system that reflects the impacts of all the water rights and accompanying reservoirs removed from the original complete dataset. A set of streamflows is developed that represents flows available to the selected system considering the effects of all the other water rights in the river basin contained in the original complete model input dataset that are not included in the condensed dataset. The methodology is applied to develop a condensed model of the Brazos River Authority reservoir system based on modifying the Texas Water Availability Modeling System dataset for the Brazos River Basin. Citation: Wurbs RA, Kim TJ. 2010. Condensing water availability models to focus on specific water management systems. Texas Water Journal. 1(1):20-32. Available from: https://doi.org/10.21423/twj.v1i1.1380.
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Moulton, Stephen R., Daniel Petr, and Kenneth W. Stewart. "Caddisflies (Insecta: Trichoptera) of the Brazos River Drainage in North-Central Texas." Southwestern Naturalist 38, no. 1 (March 1993): 19. http://dx.doi.org/10.2307/3671639.

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Wilde, Gene R., and Bart W. Durham. "Habitat associations of the sharpnose shinerNotropis oxyrhynchusin the upper Brazos River, Texas." Journal of Freshwater Ecology 28, no. 4 (December 2013): 453–61. http://dx.doi.org/10.1080/02705060.2013.817358.

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Durham, B. W., and G. R. Wilde. "Asynchronous and synchronous spawning by smalleye shinerNotropis bucculafrom the Brazos River, Texas." Ecology of Freshwater Fish 17, no. 4 (December 2008): 528–41. http://dx.doi.org/10.1111/j.1600-0633.2008.00303.x.

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Дисертації з теми "Texas Brazos River"

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Harper, Cecil. "Farming Someone Else's Land: Farm Tenancy in the Texas Brazos River Valley, 1850-1880." Thesis, University of North Texas, 1988. https://digital.library.unt.edu/ark:/67531/metadc332078/.

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This dissertation develops and utilizes a methodology for combining data drawn from the manuscript census returns and the county tax rolls to study landless farmers during the period from 1850 until 1880 in three Texas Brazos River Valley counties: Fort Bend, Milam, and Palo Pinto. It focuses in particular on those landless farmers who appear to have had no option other than tenant farming. It concludes that there were such landless farmers throughout the period, although they were a relatively insignificant factor in the agricultural economy before the Civil War. During the Antebellum decade, poor tenant farmers were a higher proportion of the population on the frontier than in the interior, but throughout the period, they were found in higher numbers in the central portion of the river valley. White tenants generally avoided the coastal plantation areas, although by 1880, that pattern seemed to be changing. Emancipation had tremendous impact on both black and white landless farmers. Although both groups were now theoretically competing for the same resource, productive crop land, their reactions during the first fifteen years were so different that it suggests two systems of tenant farming divided by caste. As population expansion put increasing pressure on the land, the two systems began to merge on terms resembling those under which black tenants had always labored.
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Kelley, Sean Michael. "Plantation frontiers : race, ethnicity, and family along the Brazos River of Texas, 1821-1886 /." Digital version accessible at:, 2000. http://wwwlib.umi.com/cr/utexas/main.

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Li, Raymond Y. "The influence of environmental factors on spatial and temporal variation of fish assemblages in the lower Brazos River, Texas." College Station, TX : Texas Water Resources Institute, 2003. http://worldcat.org/oclc/401398916/viewonline.

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Houghton, David Charles. "Descriptions, Life History and Case-Building Behavior of Culoptila cantha (Trichoptera: Glossosomatidae) in the Brazos River, Texas." Thesis, University of North Texas, 1997. https://digital.library.unt.edu/ark:/67531/metadc277587/.

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Larval, pupal and adult samples of Culoptila cantha, from a large riffle of the Brazos River in north-central Texas from January, 1995 to March, 1997, indicated a predominately trivoltine cycle during both years; the over-wintering generation spanned 6-7 months and warm-season generations spanned 2-3 months. Eggs, larvae of all instars, larval cases, case reconstruction progression and behavior, pupae, and adults are described.
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Leighton, Andrew David. "Benthic foraminiferal change and depositional history across the Cretaceous-Paleogene (K/Pg) boundary in the Brazos River area, Texas." Thesis, University of Plymouth, 2014. http://hdl.handle.net/10026.1/3665.

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The Cretaceous–Paleogene (K/Pg) boundary marks one of the major crises in the history of life on Earth. The cause is widely regarded as a large bolide impact at Chicxulub, Mexico, coincident with a major series of volcanic eruptions on the Deccan Plateau, India. Fieldwork in the Brazos River area of Texas has involved an investigation of the sections on the Brazos River and its tributaries. A previously overlooked K/Pg section (RBS) on the Brazos River was found and contains the most accessible and complete K/Pg boundary succession in the area. The RBS succession provides a clear exposure of the various lithological units within the Paleocene and was used to correlate to the successions in the nearby creeks. The K/Pg boundary is also well-exposed and records an erosional relief of ~1 m, cut into the Maastrichtian mudstone succession, creating a mounded topography. The overlying ‘Event Bed’, containing reworked impact spherules at its base, is shown to infill troughs on this irregular surface. The same features were recorded in tributary creeks, with all previous descriptions of these locations clearly failing to recognise the various sedimentary relationships. Distinct, thin, yellow clay horizons within the uppermost Maastrichtian mudstones are present in some sections. Geochemical analysis and radiometric dating have confirmed these as volcanic ashes, with extracted zircons giving a date of 65.95+0.04 Ma. These ash bands are located in Maastrichtian mudstones just below the K/Pg boundary and the recorded date is, within error, that of the K/Pg boundary. This identification of this latest Maastrichtian volcanic ash negates the suggestion of a pre-K/Pg boundary impact, a pre-extinction impact or multiple impacts. The benthic foraminiferal data generated indicates significant changes in palaeoecology of the benthic foraminifera across the K/Pg boundary. The benthic foraminifera do not experience a mass extinction, unlike the planktic foraminifera, which were significantly affected by the end-Maastrichtian extinction event. The benthic foraminferal assemblage appears to only experience transient, short-lived changes with pulses of agglutinated, elongate and large species in the early Paleocene. Mono-specific samples of Lenticulina rotulata have been analysed for stable isotopes and the data may indicate the presence cyclicity across the K/Pg boundary interval. In the earliest Paleocene significant negative δ18O excursions near the Pα/P1a and NP1/NP2 boundary represents a potential hyperthermal event that may be coeval with the DAN-C2 and Lower C29n events respectively recorded at Gubbio, and in the Atlantic Ocean. A sequence stratigraphy package is determined based on the micropaleontology and sedimentology in the Brazos River area. The latest Maastrichtian is marked by a sealevel rise immediately before the K/Pg boundary. Immediately after the K/Pg event, sealevel fell and is recorded as a change from mid to inner shelf. The condensed unit of the Middle Sandstone Bed (MSB) represents a Transgressive systems tract, with increasing diversity and abundance of benthic foraminifera to the top of the MSB, where maximum abundance and diversity is marks a Maximum Flooding Surface. The interval above indicates sea-level continuing to rise to a mid to outer-shelf setting. These sealevel changes are also recorded at the same stratigraphic level in Alabama, and at more distal K/Pg boundary sections (e.g., Denmark and Tunisia) suggesting that these sealevel changes are eustatically controlled.
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Zeug, Steven Christopher. "Demographic and trophic dynamics of fishes in relation to hydrologic variation in channel and floodplain habitats of the Brazos River, Texas." [College Station, Tex. : Texas A&M University, 2007. http://hdl.handle.net/1969.1/ETD-TAMU-1971.

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"QUANTIFYING INSTREAM SEDIMENT TRANSPORT IN SEVERAL REACHES OF THE UPPER BRAZOS RIVER BASIN, TEXAS." Texas Christian University, 2008. http://etd.tcu.edu/etdfiles/available/etd-08192008-081033/.

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Aydin, Tuba. "Dinoflagellate Cyst Biostratigraphy, Palynofacies and Paleoenvironmental Analysis of the Maastrichtian and Basal Danian, Brazon River, Texas." Thesis, 2013. http://hdl.handle.net/1969.1/150981.

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This study aims to document the dinoflagellate cyst biostratigraphy and paleoenvironmental record of the Maastrichtian Neylandville and Corsicana Formations and the lower part of the Danian Kincaid Formation from the Brazos River, Texas. Rock samples are exposed to standard palynological methods for biostratigraphic interpretations. The quantitative data collected from palynological samples are combined with δ13C and δ18O stable isotope geochemistry and TEX86 and BIT Index organic geochemistry data for paleoenvironmental interpretations. Biostratigraphically important species of dinoflagellates divide the section into three intervals. Interval 1 occurs within the Neylandville Formation, and the presence of Alterbidinium acutulum, Xenascus ceratioides and Isabelidinium cooksoniae indicate that this interval is not younger than early Maastrichtian. Interval 2 represents the Corsicana Formation. The presence of the late Maastrichtian species Disphaerogena carposphaeropsis, Palynodinium grallator and Deflandrea galeata at the base of the Corsicana Formation indicate that this interval is of late Maastrichtian age. Interval 3 occurs within the Kincaid Formation. The presence of Carpetalla cornuta and Damassadinium californicum at the base of the Kincaid Formation indicates that this interval is of Danian age. Previously published Gulf of Mexico palynology studies, as well as planktonic foraminifera and nannoplankton data confirm the age assignments of the studied interval. Dinoflagellate species assemblages increase in diversity upwards from Interval 1 to Interval 2, and then show a small decrease above the K-Pg boundary within Interval 3, indicating that the K-Pg event was not catastrophic for the dinoflagellates. The Cerodinium spp. and Spiniferites spp. complex comprise a large proportion of the species within the section. High abundance peaks of Glaphyrocysta spp., Cribroperidinium spp., and Yolkinigymnium lanceolatum occur within Interval 2. Two intervals in the section are dominated by peridinioid dinoflagellates, measured by the Peridinioid/Gonyaulacoid (P/G) ratio. The first one occurs within Interval 2 and contains peaks of the P/G ratio that correlate with increases in δ13C, suggestive of an increase in paleoproductivity. Two more peaks occur within Interval 3. Bottom water δ18O temperatures determined from benthic foraminifera and sea surface temperatures determined from TEX86 organic geochemistry show an overall cooling trend from Early Maastrichtian to the K-Pg boundary.
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"Determining minimum recreational instream flow requirements for a reach of the Brazos River at Glen Rose, Texas." Texas Christian University, 2007. http://etd.tcu.edu/etdfiles/available/etd-04242007-130840/.

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Taha, Zaid Patrick. "Fluvial response to base level change: A case study of the Brazos River, east Texas, United States." Thesis, 2007. http://hdl.handle.net/1911/20652.

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A study of the Holocene avulsion history of the Brazos alluvial valley revealed that two processes, aggradation and valley tilting, were responsible for generating two styles of avulsion, avulsion-by-progradation and avulsion-by-annexation. As aggradation migrated inland, prograding avulsions tracked the locus of aggradation. Concurrently, a nodal avulsion site developed at 55 km inland, creating avulsions by-annexation. Geomorphic evidence suggests movement along a normal listric fault occurred in proximity to the nodal avulsion site. Within the alluvium above the marine-Oxygen isotope Stage 2 onshore incised valley of the Brazos River, the pattern of stacked channels generated by avulsion was mapped to investigate the aggrading response of the Brazos River to sea level rise. The stacked channels within the valley decrease from eight, at 40 km from the coast, to four, at 65 km from the coast, which reflects the diminishing influence of eustacy inland. As aggradation decreased, while the avulsion frequency remained constant, the younger channels became more isolated, in contradiction to previous stacking models. Those models, however, neglected the influence of antecedent topography during aggradation. Vertically, the eight stacked channels within the lower valley are organized into four stratigraphic units that are attributed to changes in the alluvial valley gradient during aggradation, as calculated from the position of backstepping (retrograding) offshore deltas (paleoshorelines) and their correlative (aggradating) onshore floodplain deposits. The style of avulsion and the channel stacking pattern are both understood with respect to realizable subaerial accommodation. Previous subaerial accommodation models emphasized a proportional upward shift in an equilibrium profile during a sea level rise. Yet, an equilibrium profile must be anchored at both ends. The updip elevation of an alluvial valley is controlled by sediment yield and the cumulative aggradation from all earlier episodes of sea level rise, which should exert a limit on the downdip creation of subaerial accommodation. This study, therefore, quantified the differences in the long-term sediment yield of the Brazos and Trinity rivers of east Texas over past sea level cycles, and concludes that the lower sediment yield of the Trinity River has suppressed its equilibrium profile, thereby limiting the present creation of subaerial accommodation.
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Книги з теми "Texas Brazos River"

1

Exploring the Brazos River: From beginning to end. College Station: Texas A&M University Press, 2011.

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Dewitt, Nancy. Modern sediments of the Brazos River Delta, Brazoria County, Texas. Ann Arbor, Mich: UMI Dissertation Inf. Service, 1987.

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Irwin, Clayton Sonja, ed. Cowboys: Ranch life along the Clear Fork of the Brazos River. Austin, Tex: Eakin Press, 1997.

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Roemer, Erwin. Excavations at 41BU16: State Highway 21 at the Brazos River, Burleson County, Texas. Austin, Tex: Texas State Dept. of Highways and Public Transportation, Highway Design Division, 1987.

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5

Dunn, David D. Indications and potential sources of change in sand transport in the Brazos River, Texas. Austin, Tex: U.S. Dept. of the Interior, U.S. Geological Survey, 2001.

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6

John, Graves. Goodbye to a river: A narrative. New York: Vintage Departures, 2002.

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John, Graves. Goodbye to a river: A narrative. Austin, Tex: Texas Monthly Press, 1985.

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8

Scanlon, Bridget R. Evaluation of enhanced recharge potential to the Ogallala Aquiferin the Brazos river basin, Hale County, Texas. Austin, Tex.]: Texas Water Development Board, 2003.

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9

Raines, Timothy H. Peak-discharge frequency and potential extreme peak discharge for natural streams in the Brazos River basin, Texas. Austin, Tex: U.S. Dept. of the Interior, U.S. Geological Survey, 1998.

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Raines, Timothy H. Peak-discharge frequency and potential extreme peak discharge for natural streams in the Brazos River basin, Texas. Austin, Tex: U.S. Dept. of the Interior, U.S. Geological Survey, 1998.

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Частини книг з теми "Texas Brazos River"

1

"Multispecies and Watershed Approaches to Freshwater Fish Conservation." In Multispecies and Watershed Approaches to Freshwater Fish Conservation, edited by Kevin B. Mayes, Gene R. Wilde, Monica E. McGarrity, Brad D. Wolaver, and Todd G. Caldwell. American Fisheries Society, 2019. http://dx.doi.org/10.47886/9781934874578.ch14.

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<em>Abstract</em>.—The Brazos River crosses eight ecoregions on its journey from New Mexico through the heart of Texas to the Gulf of Mexico. This diverse stream ecosystem supports at least 85 fish species, many of which—including two endangered, migratory, pelagic broadcast-spawning cyprinids, Smalleye Shiner <em>Notropis buccula </em>and Sharpnose Shiner <em>N. oxyrhynchus</em>—have life histories that track the natural flow regime. These two shiners were listed as endangered in part because of severe range reductions that left each with one viable population in the upper Brazos River. Given their short life span, a single adverse event, such as a persistent drought of two consecutive years, could lead to extinction. This concern was nearly realized in 2011 when a record drought and heatwave resulted in complete reproductive failure of these species, which led to rescue efforts for imperiled shiners confined to drying pools. Seventeen major reservoirs control streamflow and create distinct, disconnected fragments in the Brazos River basin. Long-term ecological studies have provided a strong science foundation for guiding water and environmental flow management and watershed conservation. Implementation of both upland and riparian best management practices in the upper Brazos River watershed, including management of invasive saltcedar <em>Tamarix </em>spp., seeks to improve habitat for fish and wildlife. Hydrological monitoring and modeling is being conducted to evaluate the potential for saltcedar control to improve base flows. Identification of stream reaches most threatened by drying and where aquifer pumping may reduce groundwater inflows to streams is the focus of ongoing research on groundwater–surface water relationships. Fish passage barriers hinder successful recruitment, migration, and recolonization of prairie fishes. Removal and mitigation of barriers, as appropriate, will be critical to restoring ecological functions and connectivity required for migratory fishes. Research on propagation and repatriation of prairie fishes is needed to inform conservation and recovery efforts. A watershed-scale, multidisciplinary approach coordinated across borders and among entities is critical to ensure conservation efforts result in the persistence of native fishes in the Great Plains, including the Brazos River.
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ABRAMOVICH, SIGAL, GERTA KELLER, ZSOLT BERNER, MATAN CYMBALISTA, and CARMI RAK. "Maastrichtian Planktic Foraminiferal Biostratigraphy and Paleoenvironment of Brazos River, Falls County, Texas, U.S.A." In The End-Cretaceous Mass Extinction and the Chicxulub Impact in Texas, 123–56. SEPM (Society for Sedimentary Geology), 2011. http://dx.doi.org/10.2110/sepmsp.100.123.

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Slappey, Lisa. "Brazos Bildungsroman: John Graves and Texas in Transition in Goodbye to a River." In John Graves, Writer, 177–90. University of Texas Press, 2007. http://dx.doi.org/10.7560/714946-016.

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KELLER, GERTA, SIGAL ABRAMOVICH, THIERRY ADATTE, and ZSOLT BERNER. "Biostratigraphy, Age of Chicxulub Impact, and Depositional Environment of the Brazos River KTB Sequences." In The End-Cretaceous Mass Extinction and the Chicxulub Impact in Texas, 81–122. SEPM (Society for Sedimentary Geology), 2011. http://dx.doi.org/10.2110/sepmsp.100.081.

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ADATTE, THIERRY, GERTA KELLER, and GERALD R. BAUM. "Age and Origin of the Chicxulub Impactand Sandstone Complex, Brazos River, Texas: Evidence from Lithostratigraphy and Sedimentology." In The End-Cretaceous Mass Extinction and the Chicxulub Impact in Texas, 43–80. SEPM (Society for Sedimentary Geology), 2011. http://dx.doi.org/10.2110/sepmsp.100.043.

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HART, MALCOLM B., SARAH R. SEARLE, SEAN E. FEIST, ANDREW D. LEIGHTON, GREGORY D. PRICE, CHRISTOPHER W. SMART, and RICHARD J. TWITCHETT. "The Distribution of Benthic Foraminifera Across the Cretaceous–Paleogene Boundary in Texas (Brazos River) and Denmark (Stevns Klint)." In The End-Cretaceous Mass Extinction and the Chicxulub Impact in Texas, 179–96. SEPM (Society for Sedimentary Geology), 2011. http://dx.doi.org/10.2110/sepmsp.100.179.

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Anderson, John B., Davin J. Wallace, Antonio B. Rodriguez, Alexander R. Simms, and Kristy T. Milliken. "Holocene Evolution of the Western Louisiana–Texas Coast, USA: Response to Sea-Level Rise and Climate Change." In Holocene Evolution of the Western Louisiana–Texas Coast, USA: Response to Sea-Level Rise and Climate Change. Geological Society of America, 2022. http://dx.doi.org/10.1130/2022.1221(01).

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ABSTRACT An extensive grid of high-resolution seismic data, hundreds of sediment cores, and a robust radiocarbon-age data set acquired over nearly four decades allows detailed analysis of Holocene coastal evolution of western Louisiana and Texas, USA. Results from this study provide a framework for assessing the response of a myriad of coastal environments to climate change and variable sea-level rise. Climate varies across the region today, spanning four climate zones from humid to semi-arid, and has fluctuated during the Holocene. The most notable changes were alterations between cool/ wet and warm/dry conditions. Sea-level records for the northwestern Gulf of Mexico indicate an average rate of rise during the early Holocene of 4.2 mm/yr, punctuated by rates exceeding 10.0 mm/yr. After ca. 7.0 ka, the rate of rise slowed, and by ca. 4.0 ka, the average rate decreased from 0.6 mm/yr to 0.3 mm/yr. The current rate of sea-level rise in the region is 3.0 mm/yr, marking a return to early Holocene conditions. Despite its incomplete stratigraphic record of coastal evolution during the middle and early Holocene, it is still the most complete record for the Gulf Coast. Bay evolution, as recorded within the offshore Trinity and Sabine incised valleys, was characterized by periods of bayhead delta and tidal delta expansion, followed by episodes of dramatic landward shifts in these environments. The ancestral Brazos, Colorado, and Rio Grande river deltas and coastal barriers also experienced landward stepping during the early Holocene. The widespread nature of these flooding events and their impact on multiple coastal environments suggests that they were caused by episodes of rapid sea-level rise. Similar methods were used to study modern bays, including the acquisition of seismic lines and drill cores along the axes of the bays to examine the magnitudes and timing of transgressive events. Results from Lake Calcasieu, Sabine Lake, Galveston Bay, Matagorda Bay, Copano Bay, Corpus Christi Bay, and Baffin Bay reveal that landward shifts in bayhead deltas, on the order of kilometers per century, occurred between 9.8 ka and 9.5 ka, 8.9–8.5 ka, 8.4–8.0 ka, and 7.9–7.5 ka. These results are consistent with those from offshore studies and indicate that punctuated sea-level rise dominated coastal evolution during the early Holocene. By ca. 7.0 ka, the average rate of sea-level rise in the northern Gulf of Mexico decreased to 1.4 mm/yr, and there was considerable sinuosity of the coastline and variability in the timing of bay and coastal barrier evolution. The diachronous nature of coastal environment migration across the region indicates that sea-level rise played a secondary role to climate-controlled oscillations in river sediment discharge to the coast. At ca. 4.0 ka, the average rate of sea-level rise decreased to 0.5 mm/yr. During this period of slow sea-level rise, coastal bays began to take on their current form, with the exception of changes in the sizes and locations of bayhead deltas caused by changes in sediment supply from rivers. There were also significant changes in the size and configuration of tidal inlets and deltas as a result of barrier growth. The late Holocene was also a time when coastal barriers experienced progradation and transgression on the order of several kilometers. The timing of these changes varied across the region, which is another indication that sea-level rise played a minor role in coastal change during the late Holocene. Instead, barrier evolution during this time was controlled by fluctuations in sand supply to the coast from rivers and offshore sources. Historical records indicate a dramatic reversal in coastal evolution marked by increased landward shoreline migration of chenier plains and coastal barriers across the region. The main cause of this change is accelerated sea-level rise during this century and diminished sediment supply to the coast. Wetlands are also experiencing rapid change due to their inability to keep pace with sea-level rise, especially in areas where subsidence rates are high. Although direct human influence is a factor in these changes, these impacts are more localized. Coastal change is expected to increase over the next several decades as the rate of sea-level rise increases, the climate in Texas becomes more arid, and more severe storms impact the coast.
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"1 Between the Lower Brazos and the Lower Colorado Rivers." In Historic Native Peoples of Texas, 19–48. University of Texas Press, 2008. http://dx.doi.org/10.7560/717923-004.

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9

Davis, Paul K. "The Alamo." In Besieged, 215–19. Oxford University PressNew York, NY, 2003. http://dx.doi.org/10.1093/oso/9780195219302.003.0064.

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Abstract After Mexico finally acquired its independence from Spain in 1821, a rapid succession of governments sat in Mexico City. Unsure for a time just what government the country wanted, the rulers called themselves emperor, president, or dictator. In 1823, Emperor Iturbide agreed to commission an American, Moses Austin, to bring settlers from the United States into the northern Mexican province of Texas. Three hundred years of Spanish rule in Mexico had made barely a dent on the Texas landscape, for the Comanche Indians were masters of the southern Great Plains and any attempt to settle immigrants or establish missions in land under their sway proved futile. Thus, Moses Austin’s Americans were seen as a tool, a population that could serve as a buffer to the 4,000 Mexican citizens of the province of Texas. Little did Iturbide realize that in Moses Austin’s project lay the foundation of events that would deprive Mexico of half its land within a generation. The only two settlements of any size that existed in Texas in 1823 were San Antonio and Nacogdoches. Rather than place the 300 families that he brought to Texas in the path of the Comanches, Moses Austin’s son Stephen F. Austin (who took up his father’s tide of empresario upon the former’s untimely death in 1823) instead chose a point midway between the two Mexican towns to establish his colony between the Colorado and Brazos rivers. The “Old 300” were carefully chosen to be thrifty, hard-working farmers and ranchers whose dedication to property would guarantee their passivity, for Iturbide knew that no man of property willingly risked it by engaging in anti-government activities. He did not have to worry about it in the long run, however, for he was soon removed from office and replaced by a government dedicated to more liberal views. That government adopted a constitution in 1824 closely based on that of the United States, and the new immigrants gladly swore to uphold it as the price of the free 4,400 acres granted them for settling in Mexico. Uphold the constitution and become Catholics: those were the two conditions asked of them, with a tacit understanding that the latter would not be enforced.
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Тези доповідей конференцій з теми "Texas Brazos River"

1

Taormina, Rebecca, Lee C. Nordt, Lee C. Nordt, Mark D. Bateman, and Mark D. Bateman. "LATE QUATERNARY ALLUVIAL HISTORY OF THE BRAZOS RIVER IN CENTRAL TEXAS." In GSA Connects 2022 meeting in Denver, Colorado. Geological Society of America, 2022. http://dx.doi.org/10.1130/abs/2022am-378989.

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2

Irizarry, Kayla M., Matthew P. Garb, James D. Witts, Neil H. Landman, and Anastasia Danilova. "FAUNAL ANALYSIS AT THE CRETACEOUS - PALEOGENE MASS EXTINCTION BOUNDARY, BRAZOS RIVER, TEXAS." In GSA Annual Meeting in Seattle, Washington, USA - 2017. Geological Society of America, 2017. http://dx.doi.org/10.1130/abs/2017am-303361.

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Irizarry, Kayla M., Matthew P. Garb, James D. Witts, Neil H. Landman, Anastasia Danilova, and Remy Rovelli. "FAUNAL AND STRATIGRAPHIC ANALYSIS OF THE CRETACEOUS - PALEOGENE (K-PG) BOUNDARY EVENT DEPOSIT, BRAZOS RIVER, TEXAS." In GSA Annual Meeting in Indianapolis, Indiana, USA - 2018. Geological Society of America, 2018. http://dx.doi.org/10.1130/abs/2018am-323805.

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4

HARTER, CRAIG, PATRICK MCLAUGHLIN, JOSHUA CARTER, and MATTHEW MAHONEY. "DEVELOPMENT OF A COMPLEX DYNAMICALLY COUPLED HYDRODYNAMIC AND SEDIMENTATION MODEL FOR THE BRAZOS RIVER FLOODGATES, TEXAS." In International Conference on Coastal Sediments 2019. WORLD SCIENTIFIC, 2019. http://dx.doi.org/10.1142/9789811204487_0169.

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5

Stillwell, Ashlynn S., and Michael E. Webber. "Value of Reservoir Storage for Resilient Power Plant Cooling and Basin-Wide Water Availability." In ASME 2012 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2012. http://dx.doi.org/10.1115/imece2012-87150.

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Since many thermoelectric power plants use water for cooling, the power sector is vulnerable to droughts, heat waves, and other water constraints. At the same time, large water demands for power generation can strain water availability for other users in a river basin. Opportunities exist for power plants to decrease freshwater demands, increasing both drought resiliency of power plants and water availability for other users in the basin. One particular method of decreasing freshwater demands for power plants is by incorporating reservoir storage into cooling operations. Using reservoir storage allows water to be recirculated and reused for power plant cooling, thereby decreasing water withdrawal requirements. Water storage also has the added benefit of making water available during times of shortage. While storage is known to be beneficial, no tools exist to explicitly quantify the basin-wide water availability impacts and increased power generation resiliency possible via constructing water storage at thermoelectric power plants without existing reservoirs. Here we present the results of modeling efforts regarding the value (both in terms of resiliency and water availability) of reservoir storage for power plant cooling and basin-wide water availability in the Brazos and Colorado River basins, using a customized river basin based-model along with existing Texas Water Availability Models. Results vary between river basins and different water availability models, with construction of new reservoirs generally increasing basin-wide water availability in the Brazos River basin and generally decreasing basin-wide water availability in the Colorado River basin. We conclude that the value of reservoir storage for power plant resiliency and basin-wide water availability is highly site-specific.
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6

Irizarry, Kayla M., James D. Witts, Matthew P. Garb, Neil H. Landman, and Anastasia Danilova. "MACROFOSSIL ASSESSMENT OF THE CRETACEOUS-PALEOGENE (K-PG) BOUNDARY DEPOSITS BRAZOS RIVER, TEXAS: IMPLICATIONS FOR DEPOSITIONAL PROCESSES AND MASS EXTINCTION." In GSA Annual Meeting in Phoenix, Arizona, USA - 2019. Geological Society of America, 2019. http://dx.doi.org/10.1130/abs/2019am-340227.

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MacLeod, Kenneth, Brian Huber, Clay Tabor, Siddhartha Mitra, Rachel Wheatley, Cheryl Harrison, Maya E. Tessler, Charles Bardeen, Julio Sepulveda, and Nicole Lovenduski. "ISOTOPIC EVIDENCE CONSISTENT WITH A WILDFIRE-INDUCED, GREENHOUSE WARMING PULSE AFTER THE CHICXULUB FROM THE BRAZOS RIVER TEXAS CRETACEOUS/PALEOGENE BOUNDARY SECTION." In GSA Connects 2023 Meeting in Pittsburgh, Pennsylvania. Geological Society of America, 2023. http://dx.doi.org/10.1130/abs/2023am-393473.

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8

Witts, James D., Neil H. Landman, Matthew P. Garb, Nicolas Thibault, David S. Jones, Ekaterina Larina, and Thomas E. Yancey. "NEW RECORD OF AN ABUNDANT AMMONITE ASSEMBLAGE FROM THE LATEST CRETACEOUS CORSICANA FORMATION, BRAZOS RIVER, TEXAS. IMPLICATIONS FOR THE CRETACEOUS–PALEOGENE (K–PG) MASS EXTINCTION EVENT IN THE GULF OF MEXICO." In GSA Annual Meeting in Seattle, Washington, USA - 2017. Geological Society of America, 2017. http://dx.doi.org/10.1130/abs/2017am-306327.

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Murray, John, Edmund Muehlner, Surya Banumurthy, and Guibog Choi. "Model Tests on a Radial Wellbay Spar in Gulf of Mexico, Norwegian Sea and Offshore Brazil Environments." In ASME 2012 31st International Conference on Ocean, Offshore and Arctic Engineering. American Society of Mechanical Engineers, 2012. http://dx.doi.org/10.1115/omae2012-83161.

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A model test campaign on a 1:50 scale model of a Radial Wellbay Spar (RAW) Spar was carried out at the OTRC facility in College Station, Texas. The campaign subjected the model to wind, wave, and current environments from the Central Gulf of Mexico, the Norwegian Sea, and offshore Brazil. Time traces of dynamic wind loads were predetermined from computations using drag coefficients and estimated wind load areas of the topsides. A servo controlled line mechanism was used to apply the wind load to the model topsides. Current forces were modeled using static weights connected at the appropriate elevation on the model. Ten (10) top-tensioned risers (TTRs) were modeled in terms of stiffness and top tension using four equivalent model TTRs. Horizontal restoring forces of the prototype mooring were modeled using a four-model line arrangement. The model was instrumented to measure six-degree-of-freedom rigid body motions, air gap around the deck, wave run-up, water elevation in the riser gap in the hard tank, and mooring and TTR tensions. Global loads on an internal structural component between the centerwell device and hard tank were measured in all environments. Data comparisons were based on selected time traces of various responses and Weibull distributions to predict extreme values. In general, good agreement was found between the measured and predicted values.
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Звіти організацій з теми "Texas Brazos River"

1

Hildebrand, A. R. A field guide to the lithostratigraphy of the Cretaceous/Tertiary boundary sequence at Brazos River, Falls County, Texas. Natural Resources Canada/ESS/Scientific and Technical Publishing Services, 1994. http://dx.doi.org/10.4095/194774.

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Indications and potential sources of change in sand transport in the Brazos River, Texas. US Geological Survey, 2001. http://dx.doi.org/10.3133/wri014057.

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Water resources data for Texas, water year 1984, volume 2. San Jacinto River, Brazos River, San Bernard River basins, and intervening coastal basins. US Geological Survey, 1985. http://dx.doi.org/10.3133/wdrtx842.

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4

Water resources data for Texas, water year 1985, volume 2. San Jacinto River, Brazos River, San Bernard River basins, and intervening coastal basins. US Geological Survey, 1986. http://dx.doi.org/10.3133/wdrtx852.

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5

Water resources data for Texas, water year 1986, volume 2. San Jacinto River, Brazos River, San Bernard River basins, and intervening coastal basins. US Geological Survey, 1987. http://dx.doi.org/10.3133/wdrtx862.

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6

Water resources data for Texas, water year 1987, volume 2. San Jacinto River, Brazos River, San Bernard River basins, and intervening coastal basins. US Geological Survey, 1988. http://dx.doi.org/10.3133/wdrtx872.

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7

Water resources data for Texas, water year 1988, volume 2. San Jacinto River, Brazos River, San Bernard River basins, and intervening coastal basins. US Geological Survey, 1989. http://dx.doi.org/10.3133/wdrtx882.

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8

Peak-discharge frequency and potential extreme peak discharge for natural streams in the Brazos River basin, Texas. US Geological Survey, 1998. http://dx.doi.org/10.3133/wri984178.

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9

Monthly and annual suspended-sediment loads in the Brazos River at Richmond, Texas, 1966-86 water years. US Geological Survey, 1989. http://dx.doi.org/10.3133/wri884216.

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10

Water resources data Texas, water year 2000, volume 3. San Jacinto River basin, Brazos River basin, San Bernard River basin, and intervening coastal basins. US Geological Survey, 2001. http://dx.doi.org/10.3133/wdrtx003.

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