Connecticut DEP Boat Lauch is a point feature-based layer that includes all DEP boat lauch locations in the State of Connecticut. Types of boat launce in this layer include Trailered, Car Top and Carry-In.This layer is based on information that was collected and mapped at various scales and at different levels of accuracy using the 2004 othophoto as base layer.
Connecticut DEP Boat Launch depicts the location of all 123 Boat Launch locations in the State of Connecticut. This layer can be used with other Federal Property, State and Municipal property layers for a more comprehensive understanding of open space and recreation land throughout the State of Connecticut.
ground condition
Once acquired, any modification made to the data must be noted in the metadata. When printing this information on a map or using it in a software application, please acknowledge the State of Connecticut, Department of Environmental Protection as the original source for this information.
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George B. Obeng, Seasonal GIS Resource Intern 2008 to 2009, updated and corrected the boat launch locations.
The Connecticut DEP Boat Launch layer retains the feature types and information identified by the State of Connecticut, Department of Environmental Protection. All attributes have valid values. Values are within defined domains. The values in each field have been checked for accuracy by comparing each value to its corresponding value in the related field.
Point features conform to the following topological rules. Points are single part. There are no duplicate points. Points do not overlap. Establishment of logical consistency was performed by the State of Connecticut, Department of Environmental Protection using ESRI ArcGIS 9.3 software to digitize and control feature topology in geodatabase format. No automated procedures or tests were performed to guarantee desired topology other than visual inspection.
The completeness of the data reflects the best available boat launche records within the State of Connecticut Department of Environmental Protection. However, there may be omissions due to file errors, incomplete files, missing files, or staff error in the file retrieval process. No indication of completeness percentage is possible.
No overall positional accuracy level can be established since a variety of methods was used to map, compile and digitize the DEP Boat Launch Layer. Consequently, the information can be assumed to be no more positionally accurate than the least accurate method. The horizontal positional accuracy of this data is unknown. Point features are approximate (alternate) representations for large area objects or observations having well-defined, visible, recoverable, or permanent boundaries or demarcations. Point features are accurately positioned for these locations because objects were easily identifiable on the aerial photos.
Creation of the DEP Boat Launch layer from DEP 2004 orthophoto imagery. Feature digitizing and attribution (onscreen digitizing) - Using ESRI ArcGIS 9.3 software. The DEP 2004 orthophoto imagery layer is used as the basis for the creation of DEP Boat Launch layer. Feature location and attribute accuracy was visually checked and inspected by symbolizing and labeling features according to attribute value on the computer screen and verification from staff menbers, DEP Boat Launch maps on the DEP website and comparing this information to the original source data. These check plot maps were printed at the same scale as the source maps in order to visually inspect digitizing quality and the assignment of attribute values.
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Metadata imported.
Internal feature number.
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Feature geometry.
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Feature geometry.
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Feature geometry.
ESRI
Includes point features of all DEP Boat Launches. Information encoded about these features includes launch name, on DEP website, lauche type (Trailered, Carry In and Car Top) and standard cartographic symbology classification schemes. Use the LAUNCHNAME attribute to uniquely identify features. Use the LAUNCHTYPE attribute to symbolize features by type on a map. Additional related attribute data tables are not included with the distributed layer, but are available upon request.
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Although this data set has been used by the State of Connecticut, Department of Environmental Protection, no warranty, expressed or implied, is made by the State of Connecticut, Department of Environmental Protection as to the accuracy of the data and or related materials. The act of distribution shall not constitute any such warranty, and no responsibility is assumed by the State of Connecticut, Department of Environmental Protection in the use of these data or related materials. The user assumes the entire risk related to the use of these data. Once the data is distributed to the user, modifications made to the data by the user should be noted in the metadata.
The data distributor does not provide custom GIS analysis or mapping services. Data is available in a standard format and may be converted to other formats, projections, coordinate systems, or selected for specific geographic regions by the party receiving the data.
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