Data Management Plan
DMP Template v2.0.1 (2015-01-01)Please provide the following information, and submit to the NOAA DM Plan Repository.
Reference to Master DM Plan (if applicable)
As stated in Section IV, Requirement 1.3, DM Plans may be hierarchical. If this DM Plan inherits provisions from a higher-level DM Plan already submitted to the Repository, then this more-specific Plan only needs to provide information that differs from what was provided in the Master DM Plan.
1. General Description of Data to be Managed
Habitat maps of Puerto Rico and the U.S. Virgin Islands were created by visual interpretation of aerial photographs using the Habitat Digitizer Extension. Aerial photographs are valuable tools for natural resource managers and researchers since they provide an excellent record of the location and extent of habitats. However,spatial distortions in aerial photographs due to such factors as camera angle, lens characteristics, and relief displacement must be accounted for during analysis to prevent incorrect measurements of area, distance, and other spatial parameters. These distortions of scale within an image can be removed through orthorectification. During orthorectification, digital scans of aerial photos are subjected to algorithms that eliminate each source of spatial distortion. The result is a georeferenced digital mosaic of several photographs with uniform scale throughout the mosaic. Features near land are generally georeferenced with greater accuracy while the accuracy of features away from land is generally not as good. Where no land is in the original photographic frame only kinematic GPS locations and image tie points were used to georeference the images. After the orthorectified mosaics were created, photointerpreters were able to accurately and reliably delineate boundaries of features in the imagery as they appear on the computer monitor.
Notes: Only a maximum of 4000 characters will be included.
Notes: Data collection is considered ongoing if a time frame of type "Continuous" exists.
Notes: All time frames from all extent groups are included.
Notes: All geographic areas from all extent groups are included.
(e.g., digital numeric data, imagery, photographs, video, audio, database, tabular data, etc.)
(e.g., satellite, airplane, unmanned aerial system, radar, weather station, moored buoy, research vessel, autonomous underwater vehicle, animal tagging, manual surveys, enforcement activities, numerical model, etc.)
2. Point of Contact for this Data Management Plan (author or maintainer)
Notes: The name of the Person of the most recent Support Role of type "Metadata Contact" is used. The support role must be in effect.
Notes: The name of the Organization of the most recent Support Role of type "Metadata Contact" is used. This field is required if applicable.
3. Responsible Party for Data Management
Program Managers, or their designee, shall be responsible for assuring the proper management of the data produced by their Program. Please indicate the responsible party below.
Notes: The name of the Person of the most recent Support Role of type "Data Steward" is used. The support role must be in effect.
Programs must identify resources within their own budget for managing the data they produce.
5. Data Lineage and Quality
NOAA has issued Information Quality Guidelines for ensuring and maximizing the quality, objectivity, utility, and integrity of information which it disseminates.
(describe or provide URL of description):
- 2000-01-01 00:00:00 - Aerial photographs were acquired for Puerto Rico and the U.S. Virgin Islands Benthic Mapping Project in 1999 by NOAA Aircraft OperationCenters aircraft and National Geodetic Survey cameras and personnel.Approximately 600, color, 9 by 9 inch photos were taken of thecoastal waters of Puerto Rico and the U.S. Virgin Islands at 1:48000scale. Specific sun angle and maximum percent cloud coverrestrictions were adhered to when possible during the photographymission to ensure collection of high quality imagery for the purposeof benthic mapping.Print and diapositives were created from the original negatives.Diapositives were then scanned at a resolution of 500 dots per inch(DPI) using a metric scanner, yielding 2.4 by 2.4 meter pixels forthe 1:48000 scale photography. All scans were saved in TIFF formatfor the purposes of orthorectification and photointerpretation.Georeferencing/mosaicing of the TIFF's was performed using Socet SetVersion 4.2.1. Lens correction parameters were applied to each frameto eliminate image distortion. Airborne kinematic GPS was then usedwhen available to provide a first order geolocation. When thisinformation was not available, measurements were made between flightline strips for input into Socet Set to provide preliminary co-registration. Image to image tie-points were then used to further co-register theimagery, especially for photos taken over open water where groundcontrol points were not available. Fixed ground features visible inthe scanned photos were selected for ground control points (GCP's)which were then used to georeference the imagery. GCP's were measuredusing real-time DGPS (differential Global Positioning System). Pointswere obtained with a wide distribution throughout the imagery,especially on peninsulas and outer islands whenever possible sincethis results in the most accurate registration throughout each image.Only ground control points for terrestrial features were collecteddue to difficulty of obtaining precise positions for submergedfeatures.A custom digital terrain model (DTM) was then created using the SocetSet software to correct for feature displacement due to terraineffects. To accomplish this, water features and the shoreline wereset to an elevation of zero. Preliminary experimentation revealedthat the effects of refraction on the position of submerged featuresin the imagery were not significant enough to make a correction forunderwater displacement according to Snell's law. Selected landelevation points were then inserted from USGS 1:24000 DigitalElevation Models or other elevation data sets where clouds or othersources of interference prevented the Socet Set software fromautomatically making an accurate DTM.Once the terrain models were complete and a draft orthorectifiedmosaic was produced, a set of independent ground control points wasused to measure the quality of each mosaic's rectification and ensurethat it met acceptable limits of horizontal spatial accuracy. Ifspatial accuracy was not acceptable based on this comparison,additional modifications were made, until a satisfactory mosaic wascreated for each island. In general, mosaics were georeferenced suchthat pixels are positioned within one pixel width of their correctlocation.
(describe or provide URL of description):
6. Data Documentation
The EDMC Data Documentation Procedural Directive requires that NOAA data be well documented, specifies the use of ISO 19115 and related standards for documentation of new data, and provides links to resources and tools for metadata creation and validation.
- 1.7. Data collection method(s)
- 4.1. Have resources for management of these data been identified?
- 4.2. Approximate percentage of the budget for these data devoted to data management
- 5.2. Quality control procedures employed
- 7.1. Do these data comply with the Data Access directive?
- 7.1.1. If data are not available or has limitations, has a Waiver been filed?
- 7.1.2. If there are limitations to data access, describe how data are protected
- 7.2. Name of organization of facility providing data access
- 7.2.1. If data hosting service is needed, please indicate
- 7.3. Data access methods or services offered
- 7.4. Approximate delay between data collection and dissemination
- 8.1. Actual or planned long-term data archive location
- 8.3. Approximate delay between data collection and submission to an archive facility
- 8.4. How will the data be protected from accidental or malicious modification or deletion prior to receipt by the archive?
(describe or provide URL of description):
7. Data Access
NAO 212-15 states that access to environmental data may only be restricted when distribution is explicitly limited by law, regulation, policy (such as those applicable to personally identifiable information or protected critical infrastructure information or proprietary trade information) or by security requirements. The EDMC Data Access Procedural Directive contains specific guidance, recommends the use of open-standard, interoperable, non-proprietary web services, provides information about resources and tools to enable data access, and includes a Waiver to be submitted to justify any approach other than full, unrestricted public access.
Notes: The name of the Organization of the most recent Support Role of type "Distributor" is used. The support role must be in effect. This information is not required if an approved access waiver exists for this data.
Notes: This field is required if a Distributor has not been specified.
Notes: All URLs listed in the Distribution Info section will be included. This field is required if applicable.
Notes: This field is required if applicable.
8. Data Preservation and Protection
The NOAA Procedure for Scientific Records Appraisal and Archive Approval describes how to identify, appraise and decide what scientific records are to be preserved in a NOAA archive.
(Specify NCEI-MD, NCEI-CO, NCEI-NC, NCEI-MS, World Data Center (WDC) facility, Other, To Be Determined, Unable to Archive, or No Archiving Intended)
Notes: This field is required if archive location is World Data Center or Other.
Notes: This field is required if archive location is To Be Determined, Unable to Archive, or No Archiving Intended.
Notes: Physical Location Organization, City and State are required, or a Location Description is required.
Discuss data back-up, disaster recovery/contingency planning, and off-site data storage relevant to the data collection
9. Additional Line Office or Staff Office Questions
Line and Staff Offices may extend this template by inserting additional questions in this section.