NPPSD
Data Archive Model |
Raw
Data
- The raw data is archived in its original format. There is
great variability among raw data files. Data files may consist
of one or more “cruises”. These files will be kept in ASCII
text file format for easy interchange. |
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Compiled
Data
- Compilations of data files into data tables. Tables are organized
by the general format of the surveys. If a series of surveys
shared the same formats they were combined into a single table.
Compiled data tables are archived as MS Access (.mdb) files. |
Working
Data - Compiled datasets are summarized to provide
densities for all marine bird and marine mammal species. For
data tables reporting species sightings in 10-15 minute increments,
this entails division of bird numbers by the area sampled. Continuously
collected data was first binned into 10 minute blocks then dividing
by the area sampled. Working data are archived as MS Access
(.mdb) files. These data on density will eventually be provided
to an Arc/IMS map server for online mapping. |
Metadata
- Metadata are available for the “Raw Data” (by survey), as
well as for the “Working Data”. A crosswalk is provided to allow
researchers to associate data from Working Data, Compiled Data,
and finally the Raw Data. Metadata are stored in an MS Access
database (.mdb) file. See the Metadata page for more information. |
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