The use of oxygen isotope variation in shells of estuarine mollusks as a quantitative record of seasonal and annual Colorado river discharge 1 1Associate editor: K. K. Falkner

2004 ◽  
Vol 68 (6) ◽  
pp. 1253-1263 ◽  
Author(s):  
David L. Dettman ◽  
Karl W. Flessa ◽  
Peter D. Roopnarine ◽  
Bernd R. Schöne ◽  
David H. Goodwin
Keyword(s):  
Oxygen Isotope ◽  
River Discharge ◽  
Colorado River ◽  
Isotope Variation

Mass-independent Oxygen Isotope Variation in the Solar Nebula

2008 ◽  
Vol 68 (1) ◽  
pp. 187-218 ◽  
Author(s):  
E. D. Young ◽  
K. Kuramoto ◽  
R. A. Marcus ◽  
H. Yurimoto ◽  
S. B. Jacobsen
Keyword(s):  
Oxygen Isotope ◽  
Solar Nebula ◽  
Isotope Variation

Oxygen isotope variation in the water cycle of the Yamzho lake Basin in southern Tibetan Plateau

2009 ◽  
Vol 54 (16) ◽  
pp. 2758-2765 ◽  
Author(s):  
Jing Gao ◽  
LiDe Tian ◽  
YongQin Liu ◽  
TongLiang Gong
Keyword(s):  
Tibetan Plateau ◽  
Oxygen Isotope ◽  
Water Cycle ◽  
Lake Basin ◽  
Southern Tibetan Plateau ◽  
Isotope Variation

scholarly journals DESIGN OF DEEP DRAFT NAVIGATION CHANNEL FROM GULF OF MEXICO INTO MATAGORDA BAY, TEXAS

2011 ◽  
Vol 1 (8) ◽  
pp. 34
Author(s):  
E.A. Weiser ◽  
Jack Armstrong
Keyword(s):  
Gulf Of Mexico ◽  
River Discharge ◽  
Colorado River ◽  
Study Data ◽  
Beach Erosion ◽  
Galveston Bay ◽  
Project Report ◽  
Model Study ◽  
Navigation Channel ◽  
Tidal Hydraulics

It was in July 1956 when the senior writer of this paper was requested to prepare a program for investigations and studies required in connection with the proposed deep-draft channel from the Gulf of Mexico to Point Comfort. During 1938 to 19^0, the senior writer had attempted to analyze the available field and model study data which were then available on Galveston Bay in the hope of thus being able to reduce the shoaling in the various deep draft channels in Galveston Bay. In 19^0, the senior writer had been in charge of two field parties one of which measured the flow of water in the Colorado River and the Gulf Intracoastal Waterway near their crossing near Matagorda, Texas. A peak discharge of about 80,000 cubic feet per second was measured in the Colorado River at the Palacios Road bridge, about 15 miles upstream from its mouth during this period. At that time there were no locks nor gates in the Intracoastal Waterway adjacent to the Colorado River. It was found then that about one third of this peak river discharge flowed southwest through the Intracoastal Waterway. On the basis of the above experience and the information obtained from a review of the Matagorda Ship Channel, Texas, project report (l) and other literature, then, available (2) thru (5) a program was formulated in June 1958 and submitted to the Division Engineer in Dallas with the request that the Office of the Chief of Engineers, the Southwestern Division Engineer Office, the Beach Erosion Board and the Committee on Tidal Hydraulics review the program.

9. Mass-independent Oxygen Isotope Variation in the Solar Nebula

2008 ◽  
pp. 187-218 ◽  
Author(s):  
Edward D. Young ◽  
Kyoshi Kuramoto ◽  
Rudolph A. Marcus ◽  
Hisayoshi Yurimoto ◽  
Stein B. Jacobsen
Keyword(s):  
Oxygen Isotope ◽  
Solar Nebula ◽  
Isotope Variation

Colorado River flow dwindles as warming-driven loss of reflective snow energizes evaporation

Science ◽  
2020 ◽  
Vol 367 (6483) ◽  
pp. 1252-1255 ◽  
Author(s):  
P. C. D. Milly ◽  
K. A. Dunne
Keyword(s):  
Climate Change ◽  
Economic Activity ◽  
River Discharge ◽  
River Flow ◽  
Colorado River ◽  
Meteorological Drought ◽  
Hydrologic Model ◽  
Physical Processes ◽  
Water Shortages ◽  
Increasing Risk

The sensitivity of river discharge to climate-system warming is highly uncertain, and the processes that govern river discharge are poorly understood, which impedes climate-change adaptation. A prominent exemplar is the Colorado River, where meteorological drought and warming are shrinking a water resource that supports more than 1 trillion dollars of economic activity per year. A Monte Carlo simulation with a radiation-aware hydrologic model resolves the longstanding, wide disparity in sensitivity estimates and reveals the controlling physical processes. We estimate that annual mean discharge has been decreasing by 9.3% per degree Celsius of warming because of increased evapotranspiration, mainly driven by snow loss and a consequent decrease in reflection of solar radiation. Projected precipitation increases likely will not suffice to fully counter the robust, thermodynamically induced drying. Thus, an increasing risk of severe water shortages is expected.

A sensitivity-based approach to evaluating future changes in Colorado River discharge

2013 ◽  
Vol 122 (4) ◽  
pp. 621-634 ◽  
Author(s):  
Julie A. Vano ◽  
Dennis P. Lettenmaier
Keyword(s):  
River Discharge ◽  
Colorado River

Oxygen Isotope Variation in Stony-Iron Meteorites

Science ◽  
2006 ◽  
Vol 313 (5794) ◽  
pp. 1763-1765 ◽  
Author(s):  
R. C. Greenwood
Keyword(s):  
Oxygen Isotope ◽  
Iron Meteorites ◽  
Isotope Variation

scholarly journals Belemnite-based strontium, carbon and oxygen isotope stratigraphy of the type area of the Maastrichtian Stage

2011 ◽  
Vol 90 (2-3) ◽  
pp. 259-270 ◽  
Author(s):  
H.B. Vonhof ◽  
J.W.M. Jagt ◽  
A. Immenhauser ◽  
J. Smit ◽  
Y.W. van den Berg ◽  
...  
Keyword(s):  
Oxygen Isotope ◽  
Diagnostic Feature ◽  
Time Interval ◽  
Sr Isotope ◽  
Diagenetic Alteration ◽  
Type Area ◽  
Carbon And Oxygen Isotope ◽  
El Kef ◽  
Age Model ◽  
Isotope Variation

AbstractBelemnitellid cephalopods from the Maastrichtian stratotype area (southeast Netherlands) are shown to be comparatively well preserved. Although partial diagenetic alteration has been observed, micromilling techniques have permitted the extraction of pristine belemnite calcite, suitable for the reconstruction of strontium (Sr), oxygen (O) and carbon (C) isotope variation of Maastrichtian seawater. A distinct Sr isotope pattern in the Maastricht record can be matched stratigraphically with records from Hemmoor (northern Germany), El Kef (Tunisia) and ODP site 690 (Maud Rise, Antarctica), leading to a new chemostratigraphical age model for the Maastrichtian stratotype section. Our data improve currently applied strontium isotope stratigraphical reference curves by revealing an Sr isotope inflection pattern near the lower/upper Maastrichtian boundary that is a potentially diagnostic feature for intra-Maastrichtian stratigraphical correlation between distant sections. Belemnites further show significant stratigraphical oxygen isotope variation through the Maastrichtian. We interpret this variation to have resulted from palaeoceanographic reorganisations in the Atlantic Ocean during this time interval.

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