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ENVIRONMENTAL SENSITIVITY DATA
Description:
Stateplan_envsensitive_areas_nj_ora.shp was created for Oracle spatial operations side of NEPAssist and should replace the 12 shapefiles previously sent in the"state_development_plan_nj" folder. This layer was processed using an ArcView "union" of critical_environmental_historic_sites.shp and nj_env_sensitive_et_al.shp with one attribute field "concatinat" containing the important polygon category from each source coverage. The copies of the source file sent previously can be used for map rendering or to support additional functionality of the tool down the road. Critical_hab_nj_ora.shp was created for the Oracle spatial operations side of NEPAssist and should replace emergent.shp. This layer was processed using an ArcInfo "union" of the following shapefiles: beach_sum.shp, grassland_sum.shp, forest_sum.shp and wetlandforest_sum.shp. Each of these source layers were produced as follows: Optimizing operations on source shapefiles of Critical_hab_nj_ora.shp 1. Add [concat] field. 2 Calculate [concat] = [Spec_con].AsString++[Threatened].AsString++[Endangered].AsString++[Federal].AsString++[Rank].AsString++[Species. 3. Summarize on [concat] with optional arguments of: merge_shape, first [Spec_con] , first[Threatened], first[Endangered] , first[Federal], first[Rank], first[Species]. Give name a path to new attribute table. Shapefile will be created with same name because of employment of "merge_shape" option. 4.Output shapefile will have same number of records as there are unique values in the [concat] field, but each record will be a multi part shape with many polygons for that category of [concat]. Give field aliases to match original shapefile. Use "convert to shapefile" to create new shapefile with correct field names. The Concatenation field was dropped for these copies. These 4 source files with reduced number of records and multipart shapes can be used for map rendering or to support additional functionality of the tool down the road. In ArcInfo, these shapefiles were first processed by: converted to coverages ("shapearc" with poly option), cleaned ("clean", same name, fuzzy tol = .000002, and poly options), reconstituted attributes ("regionpoly" with poly subclass).