Spatial Data Needs The Future of the National Mapping Program (1990) / Chapter Skim
Currently Skimming:
4 Tomorrow
4 Tomorrow
Pages 41-50
The Chapter Skim interface presents what we've algorithmically identified as the most significant single chunk of text within every page in the chapter.
Select key terms on the right to highlight them within pages of the chapter.
From page 41... ...
Nevertheless, the committee believes there is guidance it can offer, and the material that follows is its attempt to provide direction for the emergent enterprise. NMD AND FORCES FOR CHANGE The NMD is at critical juncture in its existence for the following reasons: · Completion of 1:24,000 Coverage Its primary task for many decades, mapping the entire country at 1:24,000 scale (1:63,360 for Alaska)
|
From page 42... ...
All of these layers should be seamless spatial data sets; within a GIS environment the traditional map quadrangle is meaningless. More direct sources of digital data are desirable already, e.g., global positioning data and remotely sensed data, and All be mandatory in the future.
|
From page 43... ...
In order to make the altered, expanded commitments that will be essential for efficient progress, Congress, the administration, and society in general must be involved. A FUTURE FOR WE NATIONAL MAPPING DIVISION We have seen that the NMD of the past evolved primarily to meet the needs of a number of federal agencies for base maps of selected classes of features located within a rigorously controlled geodetic framework.
|
From page 44... ...
RECOMMENDATIONS Recommendation 1: National Spatial Data Base The committee recommends that the National Mapping Division expand its role in developing the National Digital Cartographic Data Base so that its functions include management and coordination, standard setting and enforcement, data production, cataloging, and data dissemination and related seances. The USGS/NMD has recognized the utility of and demand for spatially referenced digital data and is committed to converting three major printed map series (1:24,000, 1:100,000, and 1:2,000,000)
|
From page 45... ...
Recommendation 2: Data Base Enhancement The committee recommends that the National Mapping Division increase its activities to pronde a larger number of classes of spatial data to better meet national needs both within the earth science/natural resources sector and in other sectors that are dependent on spatial data. Such needs include cultural detail such as census, postal, and transportation network data, land-use/landcover information, and others (see Figure 4~.
|
From page 46... ...
More emphasis on user requirements supplemented by changes to user/donor interaction would have significant implications for the future development of NMD. Recommendation 4: Standards Responsibility The committee mommends that the National Mapping Division continue and, if possible, expand its efforts in establishing and promulgating digital spatial data quality standards, to include standards for larger-scale data sets and maps.
|
From page 47... ...
It would include the NDCDB with selected additional base data classes, as well as accessibility information referring users to specialized spatial data sets created outside the NDCDB program, but registered to it. It should also include provisions for systematic update of features and data layers on an operational basis subject to specific user community and federal-policy-oriented priorities.
|
From page 48... ...
As users substitute alternative data solutions, a great deal of money, much of it in the public sector, is wasted. Data storage and transmission capabilities continue to increase, such that by 2010 a fully interactive, on-line national spatial digital data base could be achieved.
|
From page 49... ...
Examples of productive research themes that encompass research in the areas of digital cartography, geographic information systems, image processing and analysis, and remote sensing include: digital spatial data modeling; hardware and software development; land-use/land-cover analysis; and the monitoring of global change. While there is some overlap among these themes, they do provide general categories around which an applied and fundamentalresearch program could tee structured.
|
From page 50... ...
But in an era of instantaneous nationwide and worldwide transmission of information, it may no longer make sense to compartmentalize data production responsibility in quite the same ways as have prevailed in the past. Survival in an increasingly global economy, dominated by ever larger private/public sector coalitions in countries outside the United States, may be possible only if commitments are made in finis country to a national policy for increased information development and sharing.
|
Key Terms
This material may be derived from roughly machine-read images, and so is provided only to facilitate research.
More
information on Chapter Skim is available.