Connecticut Coastal 2002 Environmental Sensitivity Index Mapping (Polygons)
FGDC Classic | FGDC FAQ | FGDC Plus | XML

Connecticut Coastal 2002 Environmental Sensitivity Index Mapping (Polygons)
SDE Feature Class - depgis.DEP.ESI_2002_POLY
FGDC, ESRI Metadata
DescriptionGraphicSpatialData StructureData QualityData SourceData DistributionMetadata
+ Resource Description
Citation
Information used to reference the data.
Title: Connecticut Coastal 2002 Environmental Sensitivity Index Mapping (Polygons)
Originators: National Oceanic and Atmospheric Administration (NOAA), National Ocean Service, Office of Response and Restoration, Hazardous Materials Response Division
State of Connecticut, Department of Environmental Protection
Publisher: State of Connecticut, Department of Environmental Protection
Publication date: 2004
Edition: First
Data type: vector digital data
Data location: http://www.ct.gov/deep
Other citation details:
Modification by State of Connecticut, Department of Environmental Protection of larger work prepared by Research Planning, Inc., Columbia, South Carolina for the National Oceanic and Atmospheric Administration (NOAA), National Ocean Service, Office of Response and Restoration, Hazardous Materials Response Division, Seattle, Washington;
Larger Work Citation
Title: Rhode Island, Connecticut, New York, and New Jersey ESI: ESI (Environmental Sensitivity Index Shoreline Types - Polygons and Lines)
Originators: National Oceanic and Atmospheric Administration (NOAA), National Ocean Service, Office of Response and Restoration, Hazardous Materials Response Division, Seattle, Washington; State of Rhode Island, Department of Environmental Management, Providence, Rhode Island; and The Port Authority of New York & New Jersey.
Series name: none
Series identification: Rhode Island, Connecticut, New York, and New Jersey
Publisher: National Oceanic and Atmospheric Administration (NOAA), National Ocean Service, Office of Response and Restoration, Hazardous Materials Response Division, Seattle, Washington
Publication place: Seattle, Washington
Publication date: 200203
Edition: First
Data type: vector digital data
Other citation details:
Prepared by Research Planning, Inc., Columbia, South Carolina for the National Oceanic and Atmospheric Administration (NOAA), National Ocean Service, Office of Response and Restoration, Hazardous Materials Response Division, Seattle, Washington; State of Rhode Island, Department of Environmental Management, Providence, Rhode Island; and The Port Authority of New York & New Jersey.
Description
A characterization of the data, including its intended use and limitations.
Abstract:
This data set contains vector polygons representing the shoreline and coastal habitats of Connecticut classified according to the Environmental Sensitivity Index (ESI) classification system.  ESI data characterize the marine and coastal environments and wildlife by their sensitivity to spilled oil. The ESI data include information for three main components: shoreline habitats, sensitive biological resources, and human-use resources.
Purpose:
The ESI data were collected, mapped, and digitized to provide environmental data for oil spill planning and response.  The Clean Water Act with amendments by the Oil Pollution Act of 1990 requires response plans for immediate and effective protection of sensitive resources.
Dataset credit:
This project was supported by the National Oceanic and Atmospheric Administration (NOAA), National Ocean Service, Office of Response and Restoration, Hazardous Materials Response Division, Seattle, Washington; State of Rhode Island, Department of Environmental Management, Providence, Rhode Island; and The Port Authority of New York & New Jersey.
Language of dataset: en
Point Of Contact
Contact information for the individual or organization that is knowledgeable about the data.
Organization: State of Connecticut, Department of Environmental Protection
Person: Kevin O'Brien
Phone: 860-424-3034
Fax: 860-424-4054
Email: dep.gisdata@ct.gov
Address type: mailing and physical address
Address:
79 Elm St.
City: Hartford
State or Province: Connecticut
Postal code: 06106-5127
Data Type
How the data are represented, formatted and maintained by the data producing organization.
File or table name: depgis.DEP.ESI_2002_POLY
Data type: vector digital data
Data format: SDE Feature Class
Native dataset environment: These data are maintained by the State of Connecticut using ArcGIS software developed by Environmental Systems Research Institute (ESRI) in a Microsoft Windows operating system environment.
Time Period of Data
Time period(s) for which the data corresponds to the currentness reference.
Beginning date: 1999
Ending date: 2001
Currentness reference:
publication date
Status
The state of and maintenance information for the data.
Data status: Complete
Update frequency: None Scheduled
Key Words
Words or phrases that summarize certain aspects of the data.
Theme:
Keywords: biota, environment, geoscientificInformation, inlandWaters, oceans
Keyword thesaurus: ISO 19115 Topic Category
Place:
Keywords: CT
Keyword thesaurus: U.S. Department of Commerce, 1987, Codes for the Identifications of States, the District of Columbia and the Outlying Areas of the United States, and Associated Areas (Federal Information Processing Standard 5-2) Washington, DC, National Institute of Standards and Technology
Place:
Keywords: United States of America, USA
Keyword thesaurus: U.S. Department of Commerce, 1995, Countries, Dependencies, Areas of Special Sovereignty, and Their Principal Administrative Divisions (Federal Information Processing Standard (FIPS) 10-4): Washington, D.C., National Institute of Standards and Technology.
Data Access Constraints
Restrictions and legal prerequisites for accessing or using the data after access is granted.
Access constraints:
None
Use constraints:
DO NOT USE MAPS FOR NAVIGATIONAL PURPOSES.
Besides the above warning, there are no use constraints on these data.  Note that the ESI database should not be used to the exclusion of other pertinent data or information held by state or federal agencies or other organizations. Likewise, information contained in the database cannot be used in place of consultations with environmental, natural resource, and cultural resource agencies, or in place of field surveys. Recognize that the information contained in the ESI database represents known concentration areas or occurrences of natural, cultural, and human-use resources, but does not necessarily represent the full distribution or range of each species or resource. This is particularly important to recognize when considering potential impacts to protected resources, such as endangered species, wetlands, etc. Acknowledgment of the originators, publishers, contributors, and sources listed would be appreciated in products derived from these data.
+ Graphic Example
Browse Graphic
Graphic illustration of the data.
Browse graphic 1
Open - Full view of Environmental Sensitivity Index 2002 line and polygon features
Graphic Image

Browse graphic 2
Open - Detail view of Environmental Sensitivity Index 2002 line and polygon features
Graphic Image

Browse graphic 3
Open - Environmental Sensitivity Index Legend
Graphic Image
+ Spatial Reference Information
Horizontal Coordinate System
Reference system from which linear or angular quantities are measured and assigned to the position that a point occupies.
Projected coordinate system:
Name: NAD 1983 StatePlane Connecticut FIPS 0600 Feet
Map units: survey feet
Geographic coordinate system:
Name: GCS North American 1983
Coordinate System Details
Map projection
Map projection name: Lambert Conformal Conic
Standard parallel: 41.200000
Standard parallel: 41.866667
Longitude of central meridian: -72.750000
Latitude of projection origin: 40.833333
False easting: 999999.999996
False northing: 499999.999998
Planar Coordinate Information
Planar coordinate encoding method: coordinate pair
Coordinate representation:
Abscissa resolution: 0.000250
Ordinate resolution: 0.000250
Planar distance units: survey feet
Geodetic model
Horizontal datum name: North American Datum of 1983
Ellipsoid name: Geodetic Reference System 80
Semi-major axis: 6378137.000000
Denominator of flattening ratio: 298.257222
Vertical Coordinate System
Reference system from which vertical distances (altitudes or depths) are measured.
Altitude system definition:
Altitude resolution: 1.000000
Altitude encoding method: Explicit elevation coordinate included with horizontal coordinates
Spatial Domain
The geographic areal domain of the data that describes the western, eastern, northern, and southern geographic limits of data coverage.
Bounding Coordinates
In Projected or local coordinates
NAD 1983 StatePlane Connecticut FIPS 0600 Feet
BoundaryCoordinate
Left749215.841000 (survey feet)
Right1252452.737000 (survey feet)
Top826106.765000 (survey feet)
Bottom554925.640000 (survey feet)
In Unprojected coordinates (geographic)
GCS North American 1983
BoundaryCoordinate
West-73.668691 (longitude)
East-71.825197 (longitude)
North41.728326 (latitude)
South40.980414 (latitude)
+ Data Structure and Attribute Information
Overview
Summary of the information content of the data, including other references to complete descriptions of entity types, attributes, and attribute values for the data.
Direct spatial reference method: Vector
Attributes of Connecticut Coastal 2002 Environmental Sensitivity Index Mapping (Polygons)
Detailed descriptions of entity type, attributes, and attribute values for the data.
Name: depgis.DEP.ESI_2002_POLY
Type of object: Feature Class
Geometry type: Polygon
Number of records: 1859
Description:
The ESI attribute table contains attribute information for the vector polygons representing polygonal shoreline features with ESI classification.
Source:
Research Planning, Inc.
Attributes
OBJECTID
Definition:
Internal feature number.
Alias: OBJECTID Type: OID Width: 4 Precision: 10 Scale: 0
Attribute values: Sequential unique whole numbers that are automatically generated.
Attribute definition source:
ESRI
Shape
Definition:
Feature geometry.
Alias: ESI Type: String Width: 10 Precision: 0 Scale: 0
Attribute values: Coordinates defining the features.
Attribute definition source:
ESRI
ESI
Definition:
The item ESI contains values representing the ESI polygon type. The ESI rankings progress from low to high susceptibility to oil spills. The ESI rankings of polygons are similar to the ESI rankings of shorelines . For each ESI code definition below, the associated ENVIR code is referenced in parentheses.
Alias: ENVIR Type: String Width: 1 Precision: 0 Scale: 0
Attribute domain values
ValueDefinition
2A
Exposed, Wave-cut Platforms in Bedrock, Mud, or Clay; Rocky Shoals (Estuarine); Bedrock Ledges (Riverine)
Definition Source:
Research Planning, Inc.
4
Coarse-grained Sand Beaches (Estuarine); Sandy Bars and Gently Sloping Banks (Riverine)
Definition Source:
Research Planning, Inc.
7
Exposed Tidal Flats (Estuarine)
Definition Source:
Research Planning, Inc.
9A
Sheltered Tidal Flats (Estuarine)
Definition Source:
Research Planning, Inc.
10A
Salt- and Brackish-water Marsh	(Estuarine)
Definition Source:
Research Planning, Inc.
10B
Freshwater Marshes (Estuarine or Riverine)
Definition Source:
Research Planning, Inc.
10C
Freshwater Swamps (Estuarine or Riverine)
Definition Source:
Research Planning, Inc.
10D
Scrub-shrub Wetlands (Estuarine or Riverine)
Definition Source:
Research Planning, Inc.
Attribute definition source:
Research Planning, Inc.
ENVIR
Definition:
Type of regional environment
Alias: ACRES Type: Double Width: 8 Precision: 16 Scale: 5
Attribute domain values
ValueDefinition
E
Estuarine
Definition Source:
Research Planning, Inc.
R
Riverine
Definition Source:
Research Planning, Inc.
U
Unranked
Definition Source:
Research Planning, Inc.
Attribute definition source:
Research Planning, Inc.
ACRES
Definition:
A numeric value in native units (feet) for the acres of a feature.
Alias: Shape Type: Geometry Width: 4 Precision: 0 Scale: 0
Attribute values: Coordinates defining the features.
Attribute definition source:
State of Connecticut, Department of Environmental Protection
SHAPE
Definition:
Feature geometry.
Alias: WATER_CODE Type: String Width: 1 Precision: 0 Scale: 0
Attribute values: Coordinates defining the features.
Attribute definition source:
ESRI
WATER_CODE
Definition:
Specifies a polygon as either water or land
Alias: SHAPE.area Type: Double Width: 0 Precision: 0 Scale: 0
Attribute domain values
ValueDefinition
L
Land
Definition Source:
Research Planning, Inc.
W
Water
Definition Source:
Research Planning, Inc.
Attribute definition source:
Research Planning, Inc.
SHAPE.area
Alias: SHAPE.len Type: Double Width: 0 Precision: 0 Scale: 0
SHAPE.len
Alias: SHAPE.len Type: Double Width: 0 Precision: 0 Scale: 0
ESRI Feature Description
Description of spatial objects in the data using the Environmental Systems Research Institute (ESRI) terminology.
Environmental Systems Research Institute (ESRI) terms
depgis.DEP.ESI_2002_POLY
ESRI feature type: Simple
Geometry type: Polygon
Topology: FALSE
Feature count: 1859
Spatial index: TRUE
Linear referencing: FALSE
SDTS Feature Description
Description of point and vector spatial objects in the data using the Spatial Data Transfer Standards (SDTS) terminology.
Spatial data transfer standard (SDTS) terms
depgis.DEP.ESI_2002_POLY
Type: G-polygon
Count: 1859
+ Data Quality and Accuracy Information
General
Information about the fidelity of relationships, data quality and accuracy tests, omissions, selection criteria, generalization, and definitions used to derive the data.
Logical consistency report:
A multi-stage error checking process, described in the above Attribute_Accuracy_Report, is used to verify both attribute accuracy and logical consistency throughout data production. This process includes multiple automated logical consistency checks that test the files for missing or duplicate data, rules for proper coding, GIS topological consistencies (such as dangles, unnecessary node, etc.), and ORACLE(r) to ARC/INFO(r) consistencies. A final review is made by the GIS manager, where the data are written to CD-ROM and the metadata are written. After the data are delivered to NOAA, they are again subjected to a number of quality and consistency checks.
Completeness report:
These data represent coastal shorelines and habitats classified according to the Environmental Sensitivity Index (ESI) classification system.
Attribute Accuracy
Accuracy of the identification of data entities, features and assignment of attribute values.
Attribute accuracy report:
A multi-stage error checking process is used to verify both attribute accuracy and logical consistency throughout data production. The process includes a standardized data entry methodology, hardcopy data review by in-house and external resource experts, a final Quality Assurance/Quality Control (QA/QC) process, and multiple automated logical consistency checks. Quantitative data (such as densities, counts, abundances, or concentrations) provided by resource experts for inclusion in the data set may vary widely in attribute accuracy, depending upon the methodology used to collect and compile such data. For a more detailed evaluation of source data attribute accuracy, contact the sources listed in the Lineage section.
Positional Accuracy
Accuracy of the positional aspects of the data.
Horizontal accuracy report:
The ESI data set was developed from pre-existing digital sources and reflects the positional accuracy of these original data.  The horizontal positional accuracy of the 1:24,000 USGS topographic quads should conform to National Map Accuracy Standards at scales of 1:24,000.  The minimum mapping unit (MMU) of the actual shoreline classification segments is estimated at 50 meters when mapping is conducted using 1:24,000 hardcopy fieldmaps.  Field verification has shown that the absolute positional accuracy of breaks between shoreline ESI types with a 95-percent error bound is approximately 58 meters.  See the Lineage and Process_Description sections for more information on the original source data and how these data were integrated or manipulated to create the final data set.
+ Data Source and Process Information
Data Sources
Information about the source data used to construct or derive the data.
Data source information
None
Title: Connecticut Digital Orthophoto Quarter Quadrangles
Originators: Connecticut Department of Environmental Protection (CDEP)
Publisher: CDEP
Publication place: Connecticut
Publication date: 1999
Data type: Color Infrared
Map scale denominator: 12000
Media: CD-ROM
Source contribution:
Environmental Sensitivity Index Information
Date: 1999
Currentness reference:
Date of publication
None
Title: Tidal Wetlands
Originators: Connecticut Department of Environmental Protection (CDEP)
Publisher: CDEP
Publication place: Connecticut
Publication date: 1997
Data type: Digital Complete Chains
Map scale denominator: Unknown
Media: CD-ROM
Source contribution:
Environmental Sensitivity Index Information
Date: 1997
Currentness reference:
Date of publication
None
Title: Topographic Quadrangles
Originators: US Geological Survey
Publisher: U.S. Geological Survey
Publication place: Denver, CO or Reston, VA
Publication date: Unknown
Data type: Map
Map scale denominator: 24000
Media: Paper
Source contribution:
Environmental Sensitivity Index Information
Date: Varies
Currentness reference:
Date of publication
Process Steps
Information about events, parameters, tolerances and techniques applied to construct or derive the data.
Process step information
Process Step 1
Process description:
Original Connecticut ESI maps, published in 1984, were re-examined and fully updated.  The intertidal shoreline habitats of Connecticut were mapped during overflights and ground surveys conducted by an experienced coastal geologist in November of 1999.  Prior to the field study, some preliminary shoreline classifications were made using black-and-white 12,000 Digital Orthophoto Quarter Quadrangles (DOQQs) provided by the Connecticut Department of Environmental Protection.  The vertical photography used in the DOQQs was taken in 1990-1991.  The shoreline used in this atlas was digitized from these photos.  Overflights were conducted using an H-60 Helicopter operated by the U.S. Coast Guard, flying at elevations of 400-600 feet and slow air speed.  During this work, the ESI ranking of observed intertidal shoreline habitats was denoted directly onto the shoreline depicted on 1:24,000-scale USGS topographic maps.  Where appropriate, revisions to the existing shoreline were made and, where necessary, multiple habitats were described for each shoreline segment.  Basemaps used in the field were then scanned using a large format scanner, and shoreline classifications mapped during the surveys were transposed onto the shoreline digitized from the DOQQs.
Organization: NOAA, Office of Response and Restoration
Person: Jill Petersen
Phone: (206) 526-6944
Fax: (206) 526-6329
Email: Jill.Petersen@noaa.gov
Address type: physical address
Address:
7600 Sand Point Way, N.E.
City: Seattle
State or Province: Washington
Postal code: 98115-6349
Process date: 200109
Process Step 2
Process description:
Using ArcGIS 8.3 - ArcInfo, all coverages from the original NOAA ESI CD were converted to shapefiles and reprojected from GCS NAD83 into CT State Plane Coordinates, NAD83.  The data was then clipped using the politcal boundaries of the State of Connecticut.

Once the data was reprojected into CTSP83 format and clipped, they were overlaid with the CTDEP DOQQs for a spatial accuracy verification.  All data appear to fall into correct alignment when compared against the positions of their source data vis a vis the DOQQs.

Next, using ArcView 3.3 with the Xtools extension available for download from ESRI ArcScripts, the following fields were added:
1. Perimeter: units = feet
2. Area: units = square feet
3. Acres: unites = acres (Area/5280^2)
Organization: Sate of Conencticut, Department of Environmental Protection
Person: Kevin O'Brien
Phone: 860-424-3034
Fax: 860-424-4054
Address type: mailing and physical address
Address:
79 Elm St.
City: Hartford
State or Province: CT
Postal code: 06106-5127
Process date: 2004
Process software and version: ArcGIS 8.3, ArcView 3.3
Process Step 3
Process description:
Dataset copied.
Data Source used
H:\Users\kobrien\NOAA_ESI\ESI_CTSP83\Shapes\esip_ct83
ESRI geoprocessing history
Description of ESRI geoprocessing commands, settings, and tolerances applied to the data.
ESRI geoprocessing command information
1 Process
Date: 20070820 Time: 103511
Tool location: C:\Program Files\ArcGIS\ArcToolbox\Toolboxes\Data Management Tools.tbx\CopyFeatures
Command issued: CopyFeatures R:\Archive\coast\ESI_2002_Poly.shp R:\GeoData\Coast\geodatabase\coastal.mdb\ESI_2002_Poly # 0 0 0
2 Process
Date: 20070820 Time: 140822
Tool location: C:\Program Files\ArcGIS\ArcToolbox\Toolboxes\Data Management Tools.tbx\CopyFeatures
Command issued: CopyFeatures R:\GeoData\Coast\geodatabase\coastal.mdb\ESI_2002_Poly "Database Connections\10.18.8.94.depgis@DEP_Direct.sde\depgis.DEP.ESI_2002_Poly" DEPVECTORSTATIC 0 0 0
3 CopyFeatures_57
Date: 20081215 Time: 155059
Tool location: C:\Program Files\ArcGIS\ArcToolbox\Toolboxes\Data Management Tools.tbx\CopyFeatures
Command issued: CopyFeatures "Database Connections\10.18.8.94.depgis@DEP.sde\depgis.DEP.ESI_2002_POLY" "Database Connections\062174-svr.depgis@DEP.sde\depgis.DEP.ESI_2002_POLY" DEPFEATURESTATIC 0 0 0
+ Data Distribution Information
General
Description of the data known by the party from whom the data may be obtained, liability of party distributing data, and technical capabilities required to use the data.
Resource description:
ESI Atlas for Rhode Island, Connecticut, New York, and New Jersey (Larger Work)
Distribution liability:
Although these data have been processed successfully on a computer system at the National Oceanic and Atmospheric Administration, no warranty, expressed or implied, is made by NOAA regarding the utility of the data on any other system, nor shall the act of distribution constitute any such warranty.  NOAA warrants the delivery of this product in computer-readable format, and will offer a replacement copy of the product when the product is determined unreadable by computer-input peripherals, or when the physical medium is delivered in damaged condition.
Distribution Point of Contact
Contact information for the individual or organization distributing the data.
Person: John Kaperick
Organization: NOAA, Office of Response and Restoration
Phone: 206-526-6400
Fax: 206-526-6329
Address type: Physical Address
Address:
7600 Sand Point Way, N.E.
City: Seattle
State or Province: Washington
Postal code: 98115-6349
Standard Order Process
Common ways in which data may be obtained.
Digital form:
Format name: Shapefile, Feature Class
Format version number: ArcGIS
File decompression technique: Zip
Digital transfer option:
Online option:
Computer information:
Network address:
Network resource name: http://www.ct.gov/deep
Custom Order Process
Description of custom distribution services available.
Custom order process:
Contact NOAA for distribution options (see Distributor).  ESI data are processed into multiple formats to make them useful to a wider community of GIS/mapping users.  Distribution formats include ARC export, MOSS and Shape files, and MARPLOT map folders.  An ArcView ESI project and ESI_Viewer product are also included on the distribution CDs for ease of use of the ESI data.  The database files are distributed both in the NOAA standard relational database format (see NOAA Technical Memorandum NOS ORCA 115) and in a simplified desktop flat file format.  This metadata document includes information on both of these database formats.
+ Metadata Reference
Metadata Date
Dates associated with creating, updating and reviewing the metadata.
Last updated: 20120119
Last metadata review date: 200203
Language of metadata: en
Metadata Point of Contact
Contact information for the individual or organization responsible for the metadata information.
Organization: State of Connecticut, Department of Environmental Protection
Person: Kevin O'Brien
Phone: 860-424-3034
Fax: 860-424-4054
Email: dep.gisdata@ct.gov
Address type: mailing and physical address
Address:
79 Elm St.
City: Hartford
State or Province: CT
Postal code: 06106-5127
Metadata Standards
Description of the metadata standard used to document the data and reference to any additional extended profiles to the standard used by the metadata producer.
Standard name: FGDC Content Standards for Digital Geospatial Metadata
Standard version: FGDC-STD-001-1998
Time convention: local time
Metadata profiles defining additonal information:
Profile: ESRI Metadata Profile
FGDC Plus Metadata Stylesheet
Stylesheet: FGDC Plus Stylesheet
File name: FGDC Plus.xsl
Version: 2.2
Description: This metadata is displayed using the FGDC Plus Stylesheet, which is an XSL template that can be used with ArcGIS software to display metadata. It displays metadata elements defined in the Content Standard for Digital Geospatial Metadata (CSDGM) - aka FGDC Standard, the ESRI Profile of CSDGM, the Biological Data Profile of CSDGM, and the Shoreline Data Profile of CSDGM. CSDGM is the US Federal Metadata standard. The Federal Geographic Data Committee originally adopted the CSDGM in 1994 and revised it in 1998. According to Executive Order 12096 all Federal agencies are ordered to use this standard to document geospatial data created as of January, 1995. The standard is often referred to as the FGDC Metadata Standard and has been implemented beyond the federal level with State and local governments adopting the metadata standard as well. The Biological Data Profile broadens the application of the CSDGM so that it is more easily applied to biological data that are not explicitly geographic (laboratory results, field notes, specimen collections, research reports) but can be associated with a geographic location. Includes taxonomical vocabulary. The Shoreline Data Profile addresses variability in the definition and mapping of shorelines by providing a standardized set of terms and data elements required to support metadata for shoreline and coastal data sets. The FGDC Plus Stylesheet includes the Dublin Core Metadata Element Set. It supports W3C DOM compatible browsers such as IE7, IE6, Netscape 7, and Mozilla Firefox. It is in the public domain and may be freely used, modified, and redistributed. It is provided "AS-IS" without warranty or technical support.
Instructions: On the top of the page, click on the title of the dataset to toggle opening and closing of all metadata content sections or click section links listed horizontally below the title to open individual sections. Click on a section name (e.g. Description) to open and close section content. Within a section, click on a item name (Status, Key Words, etc.) to open and close individual content items. By default, the Citation information within the Description section is always open for display.
Download: FGDC Plus Stylesheet is available from the ArcScripts downloads at www.esri.com.