History:
The Geographic Information Systems (GIS) Applications and Mapping Services Unit was formed in late August of 1992 as a branch of the former EMA/Public Works/Survey Division - currently known as the OC Public Works (OC Public Works)/Geomatics/Land Information Systems Division.
This unit is responsible for analysis, development, construction and quality control of GIS application output and products, providing thematic mapping services and graphic analysis projects for various entities within the County structure. An example of the list of clients requesting GIS analysis and/or mapping services include: |
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The following items are examples of principle GIS analysis and mapping projects, which require quality control and maintenance of thematic data sets currently existing in the GIS application database:
Upper Newport Bay Sediment Control and Enhancement Project
Analysis of Upper Newport Bay to study effects on habitat of sensitive and exotic species and vegetation regrowth in dredged areas to monitor the effects of the dredging operations on the various habitats impacted.
Regional Recreation and Open Space Lands
This project involves building themes for the various County, State and Federal recreation lands. Using legal source documents and the LIS Landbase, boundary lines can be accurately determined and captured in a digital format. This data set, in combination with natural resource data, can provide analysis based on these captured boundaries. An example being a map showing all vegetation types with acreage, for Aliso and Wood Canyons Wilderness Park. Listed below are the GIS application themes for this data set:
- Regional Parks/Preserves
- State Parks/Reserves
- National Forest/Federal Land
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- County Beaches
- State Beaches
- Marine Life Refuges
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| Harbors, Beaches & Parks (HBP) Open Space Mapping: |
This data set consists of 9 specific themes, representing the various easements offered and/or dedicated to the County upon recordation of Parcel Maps, Tract Maps and Records of Survey, within the Unincorporated Territory of Orange County. These 9 themes are updated and maintained on a regular basis due to the large number of maps submitted by the private sector for recordation. This data set also contains selected information for all properties in the 9 specific easement themes. This information includes: tract number, owner, easement type, acreage, date of recordation and the offered/accepted status. This GIS application assists in tracking a vast number of properties, which are subject to acquisition for development of future parks, trails, recreational facilities, golf courses and the preservation and maintenance of our natural resources.
- HBP Bike Trail Easements
- HBP Riding & Hiking Easements
- HBP Regional Park Easements
- HBP Resource Preservation Easements
- HBP Local Park & Recreation Easements
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- HBP Landscape Easements
- HBP Scenic Preservation Easements
- HBP Pedestrian Walkway Easements
- HBP Open Space Easements
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