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Sea-level change / Geophysics Study Committee, Commission on Physical Sciences, Mathematics, and Resources, National Research Council.

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Format:
Book
Contributor:
National Research Council (U.S.). Geophysics Study Committee.
Series:
Studies in geophysics.
Studies in geophysics
Language:
English
Subjects (All):
Sea level.
Coast changes.
Physical Description:
1 online resource (xii, 234 pages) : illustrations, maps
Edition:
1st ed.
Place of Publication:
Washington, D.C. : National Academy Press, 1990.
Language Note:
English
Summary:
Explores the views among scientists on the causes and mechanisms of sea-level change. This book examines measurement programs and make recommendations aimed at improving our understanding of the factors that affect sea level. It is meant for scientists, engineers, policymakers, the environmental community, researchers, and students.
Contents:
Sea-Level Change
Copyright
PREFACE
Contents
OVERVIEW AND RECOMMENDATIONS
EXECUTIVE SUMMARY
INTRODUCTION
PROCESSES AND FEEDBACKS
Time Scales of Sea-Level Change
Sea Level and the Geoid
Land Elevation Changes
Effects of Atmospheric Pressure, Winds, and Ocean Currents
Changes in the Mass of Ocean Water
Eustatic Effects of Changes in Liquid Water on Land
Changes in the Volume of Water Without Changes in Mass
Volume of Ocean Basins
RECORD OF CURRENT AND PAST CHANGE
Historic and Tide-Gauge Records-The Past 100 Years
The Past 18,000 Years
The Past 250,000 Years
The Past 250 Million Years
From 250 to 2500 Ma
DO CHANGES IN SEA LEVEL CAUSE CHANGES IN CLIMATE?
FORECASTING CHANGES IN SEA LEVEL RELATED TO GREENHOUSE GASES
HOW CAN WE IMPROVE THE MEASUREMENT OF SEA-LEVEL CHANGE?
RECOMMENDATIONS
REFERENCES
THE RECORD
1 Recent Changes in Sea Level: A Summary
SOME PRIOR STUDIES OF "GLOBAL" SEALEVEL
THE DATA
Sources and Distribution
Instruments
Potential Problems
ESTIMATES OF RELATIVE SEA-LEVEL CHANGE: KEY STATION APPROACH
Methods
Results
ESTIMATES OF RSL CHANGE: AREA AVERAGE APPROACH
Cautions: Nonuniqueness
DISCUSSION: POSSIBLE CAUSES
Subsidence Argument
Global Warming
Glacial Retreat
Ocean Circulation Changes
CONCLUSIONS
References
2 North Atlantic Sea Level and Circulation
ABSTRACT
OBSERVED SEA-LEVEL VARIABILITY
Western Boundary
Eastern Boundary
FORCING FUNCTIONS
Air Pressure
Wind Stress
Wind-Forced Ocean Circulation
Thermohaline Changes
MULTIPLE REGRESSION ANALYSIS
SECULAR CHANGES OF SEA LEVEL
DISCUSSION
ACKNOWLEDGMENTS
References.
3 Large-Scale Coherence of Sea Level at Very Low Frequencies
SEA LEVEL ALONG A SINGLE COAST
SEA LEVEL AT SAN FRANCISCO AND CASCAIS
SEA-LEVEL SIGNALS FROM PROPAGATING OCEAN WAVES
Pacific Ocean
Atlantic Ocean
SAN FRANCISCO TO CASCAIS
4 Glacial Isostatic Adjustment and Relative Sea-Level Change
THE GLOBAL MODEL OF GLACIAL ISOSTASY
Postglacial Variations of Relative Sea Level
The Free-Air Gravity Anomaly over Centers of Post-Glacial Rebound
PLEISTOCENE DEGLACIATION AND EARTH ROTATION
SECULAR VARIATIONS OF RELATIVE SEA LEVEL WITH GLACIAL ISOSTASY REMOVED
5 Quaternary Sea-Level Change
APPROPRIATE (AND INAPPROPRIATE) TECHNOLOGY
Stratigraphic Context of Study Materials
Geochronology/Chronostratigraphy
The 18O Ice Volume/Temperature Relationship
18O and 13C Relationships to Subaerial Exposure Surfaces
THE 18 KABP TO PRESENT TIME INTERVAL
Latest Pleistocene Maximum Continental Ice Volume
Lowest, Low Sea-Level Estimates for the 18-KaBP Shoreline
Submergence Curves for 12 KaBP to Present
Calibration of Deep-Sea 18O Signal as Continental Ice Volume
THE 180- TO 18-KABP TIME INTERVAL
Coral-Reef Terrace Sequences
The 18O Record from Coral-Reef Terraces and Deep-Sea Cores
The Deep-Sea 18O Record as an Ice-Volume Signal
THE PAST AS THE KEY TO THE FUTURE
West Antarctic Ice Surge Accompanying Warm Interglacial High Stand
Ice Growth Adjacent to a Warm Ocean
GLACIO-EUSTACY IN STRATIGRAPHIC PREDICTION
6 Graphic Analysis of Dislocated Quaternary Shorelines
THE GLACIAL CYCLE: 104 TO 105 YEARS.
TERRACES OF SEA-LEVEL MAXIMA DURING AND SINCE THE LAST INTERGLACIAL
TECTONIC MOVEMENTS ON THE TIME SCALE OF 20,000 YEARS
CONTRADICTORY SEA-LEVEL EVIDENCE FROM OXYGEN ISOTOPES AND CORAL REEFS
SEA LEVEL DURING FULL-GLACIAL AND STADIAL INTERVALS
LATE-GLACIAL AND HOLOCENE SEA LEVELS: THE 103-TO 104-YEAR TIME SCALE
7 Seismic Stratigraphic Record of Sea-Level Change
Conventional Stratigraphic Record of Sea-Level Change
Seismic Stratigraphic Record of Sea-Level Change
SEISMIC IMAGING OF STRATAL GEOMETRY
SEISMIC RESOLUTION
Vertical Resolution
Horizontal Resolution
RECOGNITION OF UNCONFORMITIES IN SEISMIC SECTIONS
SEISMIC REFLECTIONS LACKING PRIMARY STRATIGRAPHIC SIGNIFICANCE
CHRONOSTRATIGRAPHIC SIGNIFICANCE OF UNCONFORMITIES
Diachronous Unconformity on the Blake-Bahama Outer Ridge
Diachronous Unconformity in Alluvial-Fan Sediments along the San Andreas Fault
ORIGIN OF UNCONFORMITIES
Sea-Level Change and Sediment Supply
Tectonics
GEOCHRONOLOGY
INTERPRETATION OF SEA-LEVEL CHANGE
Coastal Aggradation
Downward Shifts in Onlap
Coastal Encroachment
Global Onlap Chart
Eustatic Curve
SUMMARY AND RECOMMENDATIONS
8 Long-Term Eustasy and Epeirogeny in Continents
VERY LONG TIME CHANGES OF FLOODING
METHODS
VOLUME OF MID-OCEAN RIDGES
ICE-VOLUME EFFECT
VOLCANIC ACTIVITY
OCEAN SEDIMENT VOLUMES
REDUCTION IN CONTINENTAL AREA
OCEAN COOLING
SUMMARY OF VOLUME EFFECTS
SEA LEVEL MEASURED FROM CONTINENTAL FLOODING
EPEIROGENY OF THE CONTINENTS
COMPARISON OF VOLUME AND FLOODING ESTIMATES
DISCUSSION OF EPEIROGENIC MOVEMENTS
CHANGING THE AGE DISTRIBUTION OF THE OCEAN BASINS
CRETACEOUS FLUCTUATIONS
NOTE ADDED IN PROOF
ACKNOWLEDGMENTS.
References
9 Could Possible Changes in Global Groundwater Reservoir Cause Eustatic Sea-Level Fluctuations?
THE PRESENT DAY HYDROLOGIC CYCLE AND RUNOFF
SEDIMENTARY RESERVOIRS OF THE CONTINENTAL BLOCKS
Cratonic Sediments
Geosynclinal Sediments
Coastal Plain and Continental Shelf Sediments
SEDIMENTS AS HYDROLOGIC RESERVOIRS
POTENTIAL WATER-BEARING CAPACITY OF THE MAJOR SEDIMENT RESERVOIRS
WATER-BEARING CAPACITY AND CONTINENTAL ELEVATION
A HYPOTHETICAL MODEL OF CONTINENTAL ELEVATION AND SEA-LEVEL CHANGE
RESIDENCE TIMES
MECHANISMS FOR CHANGING THE VOLUME OF GROUNDWATER
SIGNIFICANCE OF CHANGES IN THE GROUNDWATER TABLE FOR ACCUMULATION OF HYDROCARBONS AND FOR MINERALIZATION
SUMMARY AND CONCLUSIONS
10 Role of Land Ice in Present and Future Sea-Level Change
ICE ON EARTH AT THE PRESENT
Glaciers and Small Ice Caps
Greenland and Antarctic Ice Sheets
CHANGES IN ICE IN THE NEXT CENTURY
Energy and Mass Balances as a Function of Altitude
Time Scales of Ice Wastage and Dynamic Response
The Warming of Cold Snow and Firn
Flow and Iceberg Calving of Tidewater Glaciers
Stability of Ice Streams and Ice Shelves
Increased Accumulation on Antarctica
A LONGER-TERM PERSPECTIVE
Fluctuations in CO2 Observed in Ice Cores
Rapid Deglaciation in North America
Did the West Antarctic Ice Sheet Disappear during the Last Interglacial?
11 Sea Level and Climate Change
DIRECT EFFECTS OF SEA LEVEL ON CLIMATE
Atmosphere-Surface Coupling
Ocean Circulation
Annual Temperature Cycle
Ice Sheets
Ocean Chemistry
INDIRECT SEA-LEVEL AND CLIMATE ASSOCIATIONS
SUMMARY
12 Long-Term Aspects of Future Atmospheric CO2 and Sea-Level Changes
TIME SCALES OF SEA-LEVEL CHANGE
TIME SCALES OF CARBON CYCLE CHANGE
EXTENDING PREDICTIVE CO2 MODELS TO LONGER TIME SCALES
A COUPLED ATMOSPHERE-OCEAN-SEDIMENT MODEL
THE LONG-TERM PERSISTENCE OF FOSSIL-FUEL CO2
13 Sea Level and the Thermal Variability of the Ocean
BERMUDA SEA LEVEL AND THE PANULIRUS DATA
THE EASTERN NORTH PACIFIC
FUTURE MEASUREMENTS
14 Strategy for Future Measurements of Very-Low-Frequency Sea-Level Change
DETECTABILITY OF LONG-TERM TREND
CRUSTAL NOISE
THERMAL EXPANSION VERSUS CHANGES OF OCEAN MASS
MEASUREMENT OF G
PRESSURE ON THE SEA FLOOR
INVERTED FATHOMETER
TOMOGRAPHY
INTERPRETATION
A PROPOSED STRATEGY
INDEX.
Notes:
Bibliographic Level Mode of Issuance: Monograph
Includes bibliographical references and index.
ISBN:
9786610214433
9781280214431
1280214430
9780309555463
0309555469
9780585144986
0585144982
OCLC:
427404632

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