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20250722
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Geographic
GCS_North_American_1983
Angular Unit: Degree (0.017453)
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ESRI ArcCatalog 9.1.0.722
en
REQUIRED: A brief narrative summary of the data set.
REQUIRED: A summary of the intentions with which the data set was developed.
REQUIRED: The name of an organization or individual that developed the data set.
REQUIRED: The date when the data set is published or otherwise made available for release.
physio
physio
vector digital data
withheld
REQUIRED: The basis on which the time period of content information is determined.
REQUIRED: The year (and optionally month, or month and day) for which the data set corresponds to the ground.
REQUIRED: The frequency with which changes and additions are made to the data set after the initial data set is completed.
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REQUIRED: Reference to a formally registered thesaurus or a similar authoritative source of theme keywords.
REQUIRED: Common-use word or phrase used to describe the subject of the data set.
REQUIRED: Restrictions and legal prerequisites for accessing the data set.
REQUIRED: Restrictions and legal prerequisites for using the data set after access is granted.
Shapefile
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<p>Fenneman and Johnson (1946) categorized 8 broad divisions of the United States, which are subdivided into 25 provinces, which are subdivided again into 82 different sections. This partition was accomplished by examining the underlying geologic structures, the terrain texture, and the present rock types. In this study, we use adjusted versions of the provinces as potential categorical geospatial parameters for our amplification models. In the original physiographic provinces, three provinces cover a significantly larger land mass than the others (e.g. Atlantic Coastal Plain, the Central Lowlands, and the Great Plains). For these three provinces, we use physiographic sections to incorporate geologic and topographic differences that are not captured by the broader provinces and result in regions of approximately equal area.REQUIRED: A brief narrative summary of the data set.</p>Adjusted Physiohgraphic Provinces from Fenneman and Johnson (1946) used for CEUS amplification termsREQUIRED: Common-use word or phrase used to describe the subject of the data set.
en
FGDC Content Standards for Digital Geospatial Metadata
FGDC-STD-001-1998
local time
REQUIRED: The person responsible for the metadata information.
REQUIRED: The organization responsible for the metadata information.
REQUIRED: The mailing and/or physical address for the organization or individual.
REQUIRED: The city of the address.
REQUIRED: The state or province of the address.
REQUIRED: The ZIP or other postal code of the address.
REQUIRED: The telephone number by which individuals can speak to the organization or individual.
20090807
ISO 19115 Geographic Information - Metadata
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Esri
Sequential unique whole numbers that are automatically generated.
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Esri
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20250722
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