Seagrass Estero Bay Florida 2006

Metadata:

• Identification_Information
• Data_Quality_Information
• Spatial_Data_Organization_Information
• Spatial_Reference_Information
• Entity_and_Attribute_Information
• Distribution_Information
• Metadata_Reference_Information

Identification_Information:

Citation:

Citation_Information:

Originator: Avineon, Inc.

Publication_Date: Unknown

Title: Seagrass Estero Bay Florida 2006

Geospatial_Data_Presentation_Form: vector digital data

Description:

Abstract:

The dataset serves as documentation of the seagrass habitat within Lower Charlotte Harbor and Estero Bay as it existed in February, April and May of 2006. Seagrass data was photointerpreted from 2006 1:24,000 scale natural color aerial photography and classified using the SFWMD modified FLUCCS classification system. Features were stereoscopically interpreted from the aerotriangulated aerial photography and vector data was compiled using digital stereoplotters. Horizontal accuracy of meets NMAS for 1:12,000 scale maps. The minimum mapping unit for classification was 0.5 acres.

Purpose:

Creation of a 2006 seagrass map from 1:24,000 scale natural color aerial photography that is consistent with and aligned to the previous 1999, 2003 and 2004 seagrass maps. This data was produced for the SFWMD's "Estero Bay 2006 Seagrass Distribution from Boca Grande to Wiggins Pass project.

Time_Period_of_Content:

Time_Period_Information:

Multiple_Dates/Times:

Single_Date/Time:

Calendar_Date: 200602

Single_Date/Time:

Calendar_Date: 200604

Single_Date/Time:

Calendar_Date: 200605

Currentness_Reference: ground condition

Status:

Progress: Complete

Maintenance_and_Update_Frequency: As needed

Spatial_Domain:

Bounding_Coordinates:

West_Bounding_Coordinate: -82.383093

East_Bounding_Coordinate: -81.678584

North_Bounding_Coordinate: 26.791030

South_Bounding_Coordinate: 26.242983

Keywords:

Theme:

Theme_Keyword_Thesaurus: none

Theme_Keyword: seagrass

Theme_Keyword: sav

Theme_Keyword: benthic

Theme_Keyword: habitat

Theme_Keyword: submerged vegetation

Theme_Keyword: FLUCCS

Theme_Keyword: coastal

Theme_Keyword: map

Place:

Place_Keyword_Thesaurus: none

Place_Keyword: south florida

Place_Keyword: Estero Bay

Place_Keyword: Charlotte Harbor

Place_Keyword: southwest florida

Place_Keyword: San Carlos Bay

Place_Keyword: Caloosahatchee River

Access_Constraints: none

Use_Constraints:

The positional accuracy of this data meets USGS NMAS for 1:12000 scale maps. This data has a minimum classification accuracy of 90% for all categories. Mapping conventions applied to the delineation and classification of seagrass categories were: 1) Outer boundaries of beds are more important than internal structure (patchiness, shapes of sand patches within beds). 2) Outer boundaries of beds are more important than density categorization within beds. 3)Minimum Mapping Unit (MMU) is 0.5 acres. It is more important to include small isolated patches than similar sized patches that were a part of a large matrix. Care shold be taken in mapping small areas of seagrass when only a small amount of seagrass is present, e.g. around a spoil island.
a. When deciding whether an area with patches of seagrass was one polygon of patchy seagrass or individual seagrass polygons, apply guideline 3 with a MMU of 0.5 acres. Err on the side of lumping except in areas where small patches are the only seagrass present.
b. If an area has a few patches, all <0.25 acres, include the polygon of patchy seagrass if the total seagrass area is >0.5 acres. Err on the side of including these rather than excluding them.

Point_of_Contact:

Contact_Information:

Contact_Person_Primary:

Contact_Person: Keith Patterson

Contact_Organization: Avineon, Inc.

Contact_Position: Director- Photogrammetry, Mapping, & GIS

Contact_Address:

Address_Type: mailing and physical address

Address: 15500 Lightwave Drive

City: Clearwater

State_or_Province: FL

Postal_Code: 33760

Country: USA

Contact_Voice_Telephone: 727-539-1661

Contact_Facsimile_Telephone: 727-539-6954

Contact_Electronic_Mail_Address: kpatterson@avineon.com

Hours_of_Service: 8-5 Monday through Friday

Data_Set_Credit:

Acknowledgement of Avineon Inc. would be appreciated in products derived from this data.
SFWMD provided the data and metadata to FWRI. FWRI staff have altered the metadata to include processing done by FWRI, such as reprojection.

Native_Data_Set_Environment:

Microsoft Windows XP Version 5.1 (Build 2600) Service Pack 3; ESRI ArcCatalog 9.3.1.3000

Cross_Reference:

Citation_Information:

Publication_Date: Unknown

Publication_Time: Unknown

Title: Lower Charlotte Harbor Seagrass Mapping

Geospatial_Data_Presentation_Form: vector digital data

Cross_Reference:

Citation_Information:

Publication_Date: Unknown

Publication_Time: Unknown

Title: Estero Bay Seagrass Mapping

Geospatial_Data_Presentation_Form: vector digital data

Data_Quality_Information:

Attribute_Accuracy:

Logical_Consistency_Report:

Comparison of the completed seagrass coverage with other data of similar accuracy was performed. The 2006 Seagrass coverage was compared to the 2004 and 2003 Seagrass coverage so that the differences between the coverages could be analyzed. This was done during photointerpretation and quality assurance.
Polygon topology present. All polygons were tested for closure and no dangles, slivers, or pseudo nodes exist. Every polygon has a label, there are no multiple labels within polygons, there are no contiguous polygons.

Completeness_Report:

Minimum mapping unit for seagrass polygons is 0.5 acres. The study area boundaries for the project were defined by the SFWMD. Seagrass habitat features were captured and classified according to the rules, conventions, and descriptions in the Statement of Work and the Photointerpretation Key for the "Estero Bay 2006 Seagrass Distribution from Boca Grande to Wiggins Pass Pass" Seagrass Mapping project.

Positional_Accuracy:

Horizontal_Positional_Accuracy:

Horizontal_Positional_Accuracy_Report:

The positional accuracy of this data meets USGS NMAS for 1:12000 scale maps. Horizontal accuracy of the data corresponds to the positional accuracy of the aerotriangulated photography that was controlled by GPS survey control points. Digital linework was reviewed over the 2004 seagrass data and positional accuracy checked by navigating to features using coordinates selected from aerotriangulated photography for comparison to linework data collected representing those features.

Lineage:

Source_Information:

Source_Citation:

Citation_Information:

Originator: US Imaging

Publication_Date: Unknown

Title: 2006 Seagrass Aerial Photography

Source_Scale_Denominator: 24000

Type_of_Source_Media: aerial photography, stereo coverage

Source_Time_Period_of_Content:

Time_Period_Information:

Single_Date/Time:

Calendar_Date: unknown

Source_Currentness_Reference: ground condition

Source_Citation_Abbreviation: none

Source_Contribution: photographic signature for interpretation of seagrass data.

Process_Step:

Process_Description:

Photointerpretation Key
The current photointerpretation key is the same as used for the 2004, and 2003 seagrass mapping project. The key contains examples of all FLUCCS classification types delineated for the study and includes both textural descriptions of the classification types along with several aerial photo clips clearly delineated to show users the seagrass signatures on the photos.

Process_Date: 20030815

Process_Step:

Process_Description:

Photointerpretation
Photointerpretation for the project was accomplished on Avineon's Intergraph Image Station Stereo Display programs.
Seagrass covertype boundaries were photogrammetrically digitized using CadMap/dgn software running on Windows 2000 workstations. This software directly captures digital data into MicroStation NT (Bentley Microsystems, Inc.) for later importation to ARC/INFO.
Photointerpreters utilized previously collected field data and in-process collection of field data along with other available collateral data to assist in their interpretation. Throughout the photointerpretation process, positional accuracy of seagrass boundaries was maintained according to the photographic signatures apparent on the photography. The following coding and classification system was applied during photointerpretation:
CODE CLASS NAME 5400 Bays and Estuaries (Open Water) 5700 Marine (Gulf of Mexico) 6510 Tidal Flats 7100 Beaches (Other than swimming beaches) 9113 Seagrass - Patchy 9116 Seagrass - Continuous 9121 Attached Algae 0 Not Classified (land)
Classification Conventions
The following classification conventions were used in order to ensure consistency of delineation:
Bays and Estuaries are delineated using code of 5400. All permanently flooded, open water, non-vegetated areas within the study area to the brackish seaward limits.
Marine (Gulf of Mexico) are delineated using code of 5700. Includes only the marine open waters of the Gulf of Mexico. Marine (5700) was separated from Bays and Estuaries (5400) by dividing lines extending across the mouths of inlets that join the two classification types.
Tidal Flats areas are delineated using code of 6510. Tidal Flats are areas of sand or mud that are exposed at least once during the year or are capable of supporting seagrass populations for that segment of the water body (i.e. approximately six feet of depth).
Non-Swimming Beaches are delineated using code of 7100. Isolated strands of open (non-vegetated) sand, not typically accessible (on islands and fringes).
Continuous, dense seagrass beds are delineated using code of 9116. These areas exhibit a continuous and uniform signature. Small, (less than one-quarter acre) sandy bottom features may be interspersed within the bed, but these areas are not dominant. Areas that appear as continuous beds of seagrass communities, regardless of species composition, will be mapped.
Patchy seagrass beds are delineated using a code of 9113. This category appears as singular, isolated patches of seagrass or extensive areas of patch strands mixed with open bottom. Typically these areas appear as rounded clumps, or as elongated strands mixed with sand.
Attached Algae are delineated using code of 9121. Only pure stands of green algae, Caulerpa prolifera, are mapped. All polygons mapped as algae (9121) are field verified during the mapping process. When Caulerpa prolifera co-exists with seagrass beds, only the grass is mapped where beds of attached algae may be distinguishable from seagrass. Where feasible, they should be mapped and field verified if >10% cover.
While performing the photointerpretation for this project, the following guidelines were used: A. The outer boundaries of beds are more important than internal structure (patchiness, shapes of sand patches within) of beds. B. The outer boundaries of beds are more important than density categorization within beds. C. The minimum mapping unit is .5 acres. It is more important to include small isolated patches than similar sized patches that are part of a larger seagrass complex. Care is taken in mapping small areas of seagrass when only a small amount of seagrass is present, e.g., around a spoil island. Under this guideline, small isolated (i.e. Stand alone) patches of seagrass will be mapped wherever visible on the photography. Within patchy (9113) seagrass beds each .5 acre "patch" is not mapped individually because the entire bed is the mapped object.
Process Date: October 2006 - February 2007

Process_Date: 200702

Process_Step:

Process_Description:

Quality Assurance and Quality Control
Avineon has established, documented, implemented and maintains a quality management system and continually improves its effectiveness in accordance with the requirements of ISO 9001:2000, Quality Management System Requirements.
Avineon's Quality System encompasses customer order entry, design and development, purchasing and receipt of parts and materials, identification and traceability, stocking and issuance of parts and materials, test, inspection, storage, packaging, shipping, delivery and service. Avineon, Inc.'s Quality System meets or exceeds the requirements of ISO 9001:2000, Quality Management Systems - Requirements.
Our Quality System is designed to ensure products/materials provided by Avineon are subject to adequate control of quality to ensure customer satisfaction. This system is designed to prevent discrepancies from occurring and is enforced with positive corrective action when necessary.
Quality control reviews were ongoing throughout the project. The datasets were examined for adherence to mapping conventions, the PI Key, spatial and classification accuracy, and photointerpretation consistency. Below is a description of the quality control steps that were used for the 2006 Lower Charlotte Harbor and Estero Bay Seagrass Mapping Project.
Aerial Photography Quality Assurance Upon receipt of the 2006 aerial photography, Avineon inspected them for tonal balance and contrast, complete areal coverage, and defects prior to acceptance.
Control Point, Aerotriangulation and Positional Accuracy Avineon used previously collected surveyed ground control points from the 1999 seagrass mapping project and supplemented them with control points from USGS DOQ's. No analog, semi-analytical or high to low triangulation procedures were used. Residuals from the FAAT were continually checked and approved by a photogrammetrist prior to stereocompilation. Avineon used Intergraph's ISAT software for point mensuration. The software was run with blunder detection and self-calibration. The positional accuracy of the photointerpreted data was checked by comparing it with positions extracted from the USGS DOQs. The DOQs meet the same positional accuracy required for the project and represent an excellent source for comparison.
In-Process Photointerpretation Quality Assurance Avineon's Project Manager and the designated QA Photointerpreter systematically reviewed seagrass delineations and classifications interpreted from the aerial photographs. During quality control review using the Stereo display software, the QA Photointerpreter reviewed the seagrass delineations interpreted on the aerial photographs (these data existed as a .dgn file at this stage of production). The original photointerpreter completed the required revisions and resubmitted the data to the QA Photointerpreter. The work was checked again by the quality assurance photointerpreter prior to delivery as a draft product to the District. Logical Consistency Checks Comparison of the completed seagrass coverage with other data of similar accuracy was performed. The 2006Seagrass coverage was compared to the 1999, 2003 and 2004 Seagrass coverages so that the differences between the coverages could be analyzed. This was done during photointerpretation and quality assurance.
GIS Coverage Quality Control The quality of the ArcGIS digital data was monitored by a combination of manual and automated analyses. A set of automated quality control programs were used to check for errors, such as missing polygon label points, label points with no attributes, invalid attribute codes, missing attributes within the info tables, and two adjacent polygons with the same attributes.

Process_Date: 200612

Process_Step:

Process_Description:

Final Arc Info Coverage
At the conclusion of the photointerpretation task the Cadmap/dgn data file was translated to ARC/INFO. Once the data were exported to ARC/INFO, processes for building topology and validating the coverage were completed.
Unique identifiers (record numbers) for resulting polygons were assigned automatically by the system according to normal ARC/INFO conventions. Before generating label points for each polygon, the graphics were further validated to ensure that no dangling arcs escaped the polygon-building step. Dangling arcs were detected and corrected during an interactive ArcEdit session by technicians trained in vector polygon cleanup.
A 2006 ARC/INFO seagrass polygon coverage of the entire Lower Charlotte Harbor and Estero Bay Seagrass Project area was delivered on compact disk.

Process_Date: 200612

Process_Step:

Process_Description:

FWRI received the data set from SWFWMD. FWRI staff reprojected the data to Albers NAD83 and loaded to ArcSDE. FWRI staff added the field "DESCRIPT" to describe the seagrass code.

Process_Date: 20090601

Spatial_Data_Organization_Information:

Direct_Spatial_Reference_Method: Vector

Point_and_Vector_Object_Information:

Spatial_Reference_Information:

Horizontal_Coordinate_System_Definition:

Planar:

Planar_Coordinate_Information:

Planar_Coordinate_Encoding_Method: coordinate pair

Coordinate_Representation:

Abscissa_Resolution: 0.000179

Ordinate_Resolution: 0.000179

Planar_Distance_Units: meters

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_Definition:

Altitude_System_Definition:

Altitude_Resolution: 1.000000

Altitude_Encoding_Method:

Explicit elevation coordinate included with horizontal coordinates

Entity_and_Attribute_Information:

Detailed_Description:

Entity_Type:

Entity_Type_Label: FMRI.seagrass_esterobay_2006_poly

Entity_Type_Definition: Seagrass in Estero Bay and Lower Charlotte Harbor

Entity_Type_Definition_Source: Producer defined.

Attribute:

Attribute_Label: OBJECTID

Attribute_Definition: Internal feature number.

Attribute_Definition_Source: ESRI

Attribute_Domain_Values:

Unrepresentable_Domain:

Sequential unique whole numbers that are automatically generated.

Attribute:

Attribute_Label: Shape

Attribute_Definition: Feature geometry.

Attribute_Definition_Source: ESRI

Attribute_Domain_Values:

Unrepresentable_Domain: Coordinates defining the features.

Attribute:

Attribute_Label: SG06CODE

Attribute_Definition: FLUCCS Code

Attribute_Definition_Source: Florida Land Use Cover and Forms Calssification System

Attribute_Domain_Values:

Codeset_Domain:

Codeset_Name: Florida Land Use Cover and Forms Calssification System

Codeset_Source: Florida Department of Transportation

Attribute:

Attribute_Label: SG06DATE

Attribute_Definition: Coverage Date

Attribute:

Attribute_Label: DESCRIPT

Attribute_Definition: Text description of FLUCCS Code

Attribute_Definition_Source: Florida Land Use Cover and Forms Calssification System

Attribute_Domain_Values:

Unrepresentable_Domain: Text description

Attribute:

Attribute_Label: SHAPE.STArea()

Attribute:

Attribute_Label: SHAPE.STLength()

Overview_Description:

Entity_and_Attribute_Overview:

The FLUCCS uses numeric codes to represent the land use or land cover types within the classification system pertaining to wetlands, uplands, and anthropogenic features. The FLUCCS code is defined in the attribute field of the PAT.

Entity_and_Attribute_Detail_Citation:

User should refer to the Florida Department of Transportation FLUCCS and the SFWMD Photointerpretation Classification Key for full definition of the class codes and their application.

Distribution_Information:

Distributor:

Contact_Information:

Contact_Person_Primary:

Contact_Person: Beth Orlando

Contact_Organization: South Florida Water Management District

Contact_Address:

Address_Type: mailing and physical address

Address: 3301 Gun Club Rd

City: West Palm Beach

State_or_Province: FL

Postal_Code: 33406

Country: FL

Contact_Voice_Telephone: (561) 682-2891

Contact_Electronic_Mail_Address: tbarnes@sfwmd.gov

Resource_Description: Downloadable Data

Standard_Order_Process:

Digital_Form:

Digital_Transfer_Information:

Transfer_Size: 16.785

Metadata_Reference_Information:

Metadata_Date: 20100921

Metadata_Contact:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization: Avineon, Inc.

Contact_Person: Keith Patterson

Contact_Position: Director

Contact_Address:

Contact_Voice_Telephone: 727-539-1661

Contact_Facsimile_Telephone: 727-539-6954

Contact_Electronic_Mail_Address: kpatterson@avineon.com

Hours_of_Service: 8-5 Monday through Friday

Metadata_Standard_Name: FGDC Content Standards for Digital Geospatial Metadata

Metadata_Standard_Version: FGDC-STD-001-1998

Metadata_Time_Convention: local time