Maryland Geological Survey – Data Preservation Efforts
MGS shares the concerns of other organizations engaged in geological research – that geoscience collections and data are valuable in their own right, beyond the lifetime of the projects during which they are collected or acquired, and that special efforts are required to preserve them.
To that end, MGS has applied for and received 6 successive United States Geological Survey (USGS) National Geological and Geophysical Data Preservation Program (NGGDPP) grants to inventory its collections and data sets and to itemize its permanent collections. These collections include both physical collections (rock samples, sediment cores, etc.) and derived collections (reports, maps, aerial photographs, seismic data, etc.). More information about the NGGDPP can be found here: http://datapreservation.usgs.gov/ .
MGS also produced a Long-Range Data Preservation Plan and established a Data Preservation Advisory Panel (DPAP) composed of members of the larger geoscience community, as well as others with expertise in data preservation. From its inception, the DPAP has fostered data preservation at MGS, helping to set priorities and resolve thorny questions, endorsing proposals, and forming partnerships in applying for preservation-related grants.
With the help of NGGDPP funding, MGS is currently focusing its efforts on scanning and creating metadata for its vast collection of more than 25,000 historical aerial photographs. This collection spans the 1930s – 1990s and includes:
- county-wide black-and-white aerial photographs
- black-and-white photographic enlargements of Fenwick and Assateague Islands
- black-and-white photographic enlargements of the Rockville-Laurel area of Montgomery County
- black-and-white aerial photo index maps
- black-and-white high altitude aerial photographs
- color quadrangle aerial photographs
- regional infrared aerial photographs
Our ultimate objective is to make the digital scans of these aerial photographs available online and to the public. This is a large task. Thankfully, several DPAP partners - Maryland State Archives (MSA) and the Johns Hopkins University (JHU) – have not only helped scan aerial photos, but posted several series online for public access via their websites. Here are links to the aerial photography series that are currently available online:
The Johns Hopkins University - JScholarship Website
- “Aerial Photography – Other Maryland Counties”
1930s & 1950s County-wide Aerial Photo Index Maps
https://jscholarship.library.jhu.edu/handle/1774.2/36422 * Click on “Titles” under “This Collection” to view a list of the index maps.
- “Aerial Photography – Ocean City (1952-1964)”
1950s & 1960s Aerial Photo Index Maps & Associated Aerial Photographs of Fenwick and Assateague Islands, Worcester County, MD
- “Aerial Photography – Baltimore (1927, 1937, 1948, 1952, 1957, 1964, 1972)”
1920s – 1970s Aerial Photographs of Baltimore County & City
Maryland State Archives – Guide to Government Records Website
- 1950s County-wide Aerial Photo Index Maps
- 1960s and 1970s County-wide Aerial Photo Index Maps (currently in progress)
- 1950s and 1960s Worcester County Aerial Photo Index Maps & Associated Aerial Photographs
* Click on “View all series for MARYLAND GEOLOGICAL SURVEY”.
MGS submitted its seventh NGGDPP grant application in March 2014. Grant recipients should be notified in July 2014. Proposed work for the upcoming grant year includes continued scanning of aerial photographs and associated metadata creation.
Acknowledgements & Funding:
This work has been funded by successive grants awarded in FY2008-2013 by the USGS National Geological and Geophysical Data Preservation Program.
MGS wishes to thank the members of DPAP for fostering data preservation efforts at the Survey. MGS is extremely grateful to MSA and JHU for their assistance in scanning multiple maps, aerial photographs, and publications and making many of these items available online via their websites.