Appendix C—NGDC Holdings

Dataset/Category Name

Typea

Digital (D) or Analog (A)

Volume (Mbytes)

Analog Size

% Online

Aurora Data

All-sky camera films

STP

D&A

 

16,000 paper, 6,200 microfilm

0

Auroral radar, spectral line data, visual

STP

A

358

1,020 microfilm, paper

2

Auroras and other lights viewed from space and Auroras Australis slides

STP

A

 

72 slides

0

Airglow

STP

D&A

4.56

3,340 pages, UAG-1

80

Bathymetry, Topography, and Relief

Bathymetry of the Gulf of Mexico on CD-ROM

MGG

D

600

 

0

Bathymetry/relief posters and slides

MGG

A

 

11 posters, 40 slides

0

Bathymetry/topography gridded data

MGG

D

0.2

 

0

Coastal relief models

MGG

D

30,000

 

50

Coastal relief model U.S./northeast Atlantic on CD-ROM

MGG

D

15,000

 

50

Coastal relief model U.S./Southeast Atlantic on CD-ROM

MGG

D

15,000

 

50

Coastal relief model Florida/eastern Gulf of Mexico

MGG

D

3,000

 

50

Coastal relief western Gulf of Mexico

MGG

D

1,200

 

50

Coastal relief model central Gulf of Mexico

MGG

D

1,200

 

50

Coastlines/shorelines digital

MGG

D

 

 

100

Estimated and measured seafloor topography

MGG

D

 

 

0

ETOPO2 2-minute gridded global elevations

MGG

D

600

 

50



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