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Four-dimensional model assimilation of data : a strategy for the earth system sciences / Panel on Model-Assimilated Data Sets for Atmospheric and Oceanic Research, Board on Atmospheric Sciences and Climate, Commission on Geosciences, Environment, and Resources, National Research Council.

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Format:
Book
Contributor:
National Research Council (U.S.). Panel on Model-Assimilated Data Sets for Atmospheric and Oceanic Research.
Language:
English
Subjects (All):
Atmospheric models.
Numerical weather forecasting--United States.
Numerical weather forecasting.
Atmospheric circulation--Computer simulation.
Atmospheric circulation.
Ocean circulation--Computer simulation.
Ocean circulation.
Physical Description:
1 online resource (88 p.)
Edition:
1st ed.
Place of Publication:
Washington, D.C. : National Academy Press, 1991.
Language Note:
English
Summary:
This volume explores and evaluates the development, multiple applications, and usefulness of four-dimensional (space and time) model assimilations of data in the atmospheric and oceanographic sciences and projects their applicability to the earth sciences as a whole. Using the predictive power of geophysical laws incorporated in the general circulation model to produce a background field for comparison with incoming raw observations, the model assimilation process synthesizes diverse, temporarily inconsistent, and spatially incomplete observations from worldwide land, sea, and space data acquisition systems into a coherent representation of an evolving earth system. The book concludes that this subdiscipline is fundamental to the geophysical sciences and presents a basic strategy to extend the application of this subdiscipline to the earth sciences as a whole.
Contents:
Four-Dimensional Model Assimilation of Data: A Strategy for the Earth System Sciences
Copyright
Contents
Executive Summary
CONCLUSIONS
RECOMMENDATIONS
1 Introduction
CONCEPT OF GEOPHYSICAL MODEL DATA ASSIMILATION
ASSESSMENT OF DATA ASSIMILATION IN ATMOSPHERIC SCIENCES
DATA ASSIMILATION VIEWED AS PART OF A SYSTEMATIC LEARNING PROCESS
CURRENT STATUS OF DATA ASSIMILATION
APPLICABILITY OF DATA ASSIMILATION TO THE EARTH SYSTEM SCIENCES
2 Data Assimilation Development
INTRODUCTION
PRINCIPLES AND METHODS
CONTINUOUS DATA INSERTION
RESEARCH AND DEVELOPMENT IN DATA ASSIMILATION: THE KALMAN FILTERAND ADJOINT METHODS
3 Current and Future Applications of Model Assimilation Systems
GLOBAL ATMOSPHERIC CIRCULATION
MESOSCALE ATMOSPHERIC CIRCULATIONS
PHYSICAL OCEANOGRAPHY
HYDROLOGICAL CYCLE
Atmospheric Subsystem
Land Surface Subsystem
Ocean Surface Subsystem
GLOBAL PRECIPITATION
LARGE-SCALE FIELD EXPERIMENTS AND BIOSPHERIC STUDIES
ATMOSPHERIC CHEMISTRY
EARTH OBSERVING SYSTEM
USE OF MODEL-ASSIMILATED DATA SETS FOR RESEARCH
4 Needs for the Future for Model-Assimilated Data Sets
RESEARCH PROBLEMS
Synotic Systems
Planetary Waves
Low-Frequency Variability
Atmosphere-Ocean Interactions
Atmosphere-Land Interactions
Dynamics-Chemistry-Radiation Interactions
Hydrology
DATASETS NEEDS BY TIME SCALES
0 to 3 Days
3 to 10 Days
10 to 100 Days
100 to 1000 Days
1000+ Days
REQUIREMENTS FOR DATA AND COVERAGE
General Principles
General Specifications
5 Quality Control and Validation of Observations, Analyses, and Models
DATA MONITORING
EPISODIC MODEL REJECTION OF DATA
VALIDATION OF REMOTELY SENSED EARTH OBSERVING SYSTEM DATA
VALIDATION OF MODEL-ASSIMILATED ANALYSES
VALIDATION OF FORECAST MODELS.
6 Status of Data Archives, Access, and Future Directions
AVAILABLE ANALYSES AND OBSERVATIONS
Atmospheric Analyses
Ocean Analyses
Hydrological Analyses
Paleoclimate Reconstructions
Surface Observations (Meteorology, Hydrology, Oceanography)
Upper-Air Data (Meteorology)
RESOURCES NEEDED FOR ARCHIVING MODEL-ASSIMILATED DATA SETS
Resources Needed to Prepare Older Observed Data
ARCHIVE METHODS AND INSTITUTIONAL ARRANGEMENTS
FUTURE DIRECTIONS
Access to Model Data and Observations
Locate More Data at the Scientist's Site
Software for Data Display and Manipulation
National Weather Service Modernization Program
Advances in Computer Technology
7 Conclusions and Recommendations
References
List of Acronyms.
Notes:
Bibliographic Level Mode of Issuance: Monograph
Includes bibliographical references (p. 70-75).
ISBN:
9786610211685
9781280211683
1280211687
9780309583480
0309583489
9780585155463
0585155461
OCLC:
559501429

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