Africa Ocean Mask

New-ID: NBI44

Ocean mask for Africa.

Integrated Elevation and Bathymetry Dataset Documentation

File: AFELBA.IMG Code: 100048-001

Raster Member
This IMG file is in IDRISI format

Integrated elevation and bathymetry data set is part of
UNEP-GRID/FAO Africa data base incorporated into World Data Bank II by
the World Data Center-A (WDC-A) for Solid Earth Geophysics, operated
by the U.S. National Geophysical Data Center (NGDC). The dataset is
provided on a diskette called The Global Change Data Base. The Data
Bank II is part of larger project called Global Ecosystems Database
Project. This is a cooperation between the National Oceanic and
Atmospheric Administration (NOAA), NGDC and the U.S. Environmental
Protection Agency (EPA). The National Center for Geographic
Information and Analyses (NCGIA) in Santa Barbara, California joined
the project to assist with training and evaluation. Sources used were
the USSCS World Soil Map, UNESCO/FAO Soil Map of the World, DMA
Topographic Maps of Africa, Raize Landform Map of North Africa, and
Landsat mosaics. A scale was chosen that corresponds closely with the
resolution of global AVHRR coverage was chosen to provide
compatibility with other scales. All data are provided in geographic
(longitude/latitude) projection. The dataset is accompanied by an
ASCII documentation file which contains information necessary for use
of the dataset in a GIS or other software. Contact : NGDC, 325
Broadway E/GC, Boulder, Colorado 80303, USA The AFELBA file shows
integrated elevation and bathymetry (feet)

References:

Edwards, Margaret Helen. Digital Image Processing of Local and
Global Bathymetric Data (1986). Master"'"s Thesis. Washington
University, Dept. of Earch and Planetary Sciences, St. Louis,
Missouri, p.106.

Haxby, W.F., et al. Digital Images of Combined Oceanic and
Continental Data Sets and Their Use in Tectonic Studies (1983). EOS
Transaction of the American Geophysical Union, vol.64, no.52,
pp.995-1004.

NOAA. Global Change Data Base, Digital Data with Documentation
(1992).
National Oceanic and Atmospheric Administration, National Geophysical Data
Center, Boulder, Colorado.

Hastings, David A., and Liping Di. Modeling of global change
phenomena with GIS using the Global Change Data Base (1992). Remote
sensing of environment, in review.

Clark, David M., Hastings, David A. and Kineman, John J. Global
databases and their implications for GIS (1991). IN Maguire, David J.,
Goodchild, Michael F., and Rhind, David W., eds., Geographical
Information Systems: Overview, Principles and Applications. Burnt
Mill, Essex, United Kingdom, Longman. V.2, pp. 217-231.

Kineman, J.J., Clark, D.M., and Croze, H. Data integration and
modelling for global change: An international experiment
(1990). Proceeding of the International Conference and workshop on
Global Natural Resource Monitoring and Assessments. Preparing for the
21st Century (Venice, Italy, 24-30 September 1989). Bethesda,
Maryland, American Society of Photogrammetry and Remote Sensing,
vol. 2, pp. 660-669. CERL. The Geographic Resources Analysis Support
System (GRASS-GIS) version 4.0 (1991). U.S. Army Corps of Engineers,
Construction Engineering Research Laboratory, Champaign, Illinois.

Source map : various sources
Publication Date : Jun1985
Projection : Miller Oblated Stereographic resampled to lat/lon.
Type : Raster
Format : IDRISI