LAKE JESUP VEGETATION MAPPING: AN INTER-AGENCY ...
LAKE JESUP VEGETATION MAPPING: AN INTER-AGENCY COLLABORATION
Lakshmi Sankaran, GISP
Public Works Department, Seminole County
Presented at Esri SERUG, 2011
LAKE JESUP Area - 12 sq miles Shoreline - 53 miles Watershed - 136 sq miles Runoff – Creeks and Canals 7 Municipalities in Seminole County
Presented at Esri SERUG, 2011
SUBMERSED AND EMERSED VEGETATION MAPPING Lake Jesup Vegetation Survey July 16-19, 2007 Agencies: — Florida Department of Environmental Protection — Florida Fish and Wildlife Conservation Commission — Seminole County Water Quality — Seminole County Sherriff's Office — St Johns River Water Management District And — Seminole County Public Works GIS — Seminole County Environmental Services Providing — Boats — GPS Units — An ArcPad License — Biologists — GPS Operators — And a whole lot of learning and fun! Presented at Esri SERUG, 2011
SUBMERSED AND EMERSED VEGETATION MAPPING — — — —
Logistics/scheduling by our Lake Management Program Coordinator 5 Teams Agencies bring their boats, biologists County provides GPS units and Operators
Presented at Esri SERUG, 2011
SUBMERSED AND EMERSED VEGETATION MAPPING
Presented at Esri SERUG, 2011
SUBMERSED AND EMERSED VEGETATION MAPPING — Survey of Shoreline Vegetation — Survey of any Underwater Vegetation — Survey of Floating Vegetation
Questions: — Which Shoreline? — FEMA FIS Study 2005 shoreline — How far inwards into the shoreline? — Visible line from boat — What species of vegetation are expected to be found? — Species List provided — How many Transect Sections? — About 1000 ft apart
Presented at Esri SERUG, 2011
SUBMERSED AND EMERSED VEGETATION MAPPING Procedure for Shorelines — Shorelines sections assigned to a team — Sections divided into sub-sections with a pre-assigned ID no. to match Field Book ID. — GPS Operator navigates to start of section and calls out end of section. — GPS operator records only the dominant vegetation from a domain drop down against the shoreline section ID — Biologist records all other species by percentage of coverage of the shoreline section in Field Book.
Polylines Presented at Esri SERUG, 2011
SUBMERSED AND EMERSED VEGETATION MAPPING Procedure for Floating Vegetation — Empty polygon feature class — Create polygon in field by running the airboat around the edge — Assign ID — GPS operator records only the dominant vegetation from a domain drop down against the shoreline section ID — Biologist records all other species by percentage of coverage of the polygon in Field Book.
Polygons Presented at Esri SERUG, 2011
SUBMERSED AND EMERSED VEGETATION MAPPING Procedure for Transects — Boat follows transect line — Biologist drops rake — Drop a GPS point if underwater vegetation found — If polygon is identifiable under water, drop points around perimeter — Assign ID — GPS operator records only the dominant vegetation from a domain drop down against the shoreline section ID — Biologist records all other species in Field Book.
Presented at Esri SERUG, 2011
SUBMERSED AND EMERSED VEGETATION MAPPING
Presented at Esri SERUG, 2011
SUBMERSED AND EMERSED VEGETATION MAPPING — 90 species domain — Had to be re-typed into a table
Field Book
Presented at Esri SERUG, 2011
SUBMERSED AND EMERSED VEGETATION MAPPING What really happened — I had never used a GPS before — Had no ArcPad license — The PW GIS team had used data loggers of the antiquated kind — No team had an experienced GPS operator either — Transect boats needed waypoints to navigate transects via their Garmin — I don’t like the sun Solution — We managed 1 ArcPad license — SemCo Environmental Services provided 4 GPS units (one did not work at all) – they all had Arc Pad — Went through a crash course on GPS from Environmental Services — GPS Settings — ArcPad Projects — Data Dictionary — Uploads and merges Presented at Esri SERUG, 2011
SUBMERSED AND EMERSED VEGETATION MAPPING — Then we trained the GPS Operator team — Test Run on July 16 — GPS files were saved by date and team……
Presented at Esri SERUG, 2011
SUBMERSED AND EMERSED VEGETATION MAPPING The Results — All the field book data was entered into a table in the geodatabase
Presented at Esri SERUG, 2011
SUBMERSED AND EMERSED VEGETATION MAPPING Lake Jesup Vegetation Survey May 3-4, 2010 — Public Works Traffic Engineering has 2 GPS units — Environmental Services has upgraded their GPS units — We know what to expect
However — The shoreline no longer looks the same – water is higher — There has been a restoration project
Presented at Esri SERUG, 2011
The Aquatic Habitat Restoration and Enhancement Sub-section (AHRES) is part of the Florida Fish and Wildlife Conservation Commission. Mission is to manage and restore freshwater aquatic habitats to benefit fish and wildlife.
SUBMERSED AND EMERSED VEGETATION MAPPING Lake Jesup Vegetation Survey May 3-4, 2010 — Keep the same shoreline sections, transects — Map additional exposed shorelines with new ID
Presented at Esri SERUG, 2011
SUBMERSED AND EMERSED VEGETATION MAPPING Map Analysis for a biologist — Native vs Non-Native Species — A Native column was added to the Species list
Presented at Esri SERUG, 2011
SUBMERSED AND EMERSED VEGETATION MAPPING Map Analysis for a biologist — Restoration Area changes
A happy thing!
Presented at Esri SERUG, 2011
SUBMERSED AND EMERSED VEGETATION MAPPING Map Analysis for a biologist — Submersed Vegetation changes
A happy thing!
Presented at Esri SERUG, 2011
SUBMERSED AND EMERSED VEGETATION MAPPING Map Analysis for a biologist — Floating Vegetation changes
YEAR 2007 2010
FLOATING VEGETATION TOTAL NATIVE NON-NATIVE 33 25 8 91 91 0
Number of Polygons surveyed
Presented at Esri SERUG, 2011
SUBMERSED AND EMERSED VEGETATION MAPPING Map Analysis for a biologist — Floating Vegetation changes
Presented at Esri SERUG, 2011
SUBMERSED AND EMERSED VEGETATION MAPPING And in the end — The 2010 Survey was actually more difficult — Biologists noted species not in the GIS domain — The GPS Operators did not follow protocol especially along old shoreline sections and assigned their own IDs — Satellite reception was particularly spotty — Boat went faster than the GPS trace — There were a few re-runs — An airboat was not used to run the polygons – so the polygons were larger than the actual occurrence — There was actually additional work and QA/QC back at the office — It is difficult to record/represent via maps, ever changing nature at such a small scale — Survey of the SR 46 bridge area on 9/28/2010 — Try photo interpretation with ArcGIS 10 using field samples
Presented at Esri SERUG, 2011
Gloria Eby Senior Environmental Scientist Seminole County Water Quality Section Lake Management Program 407-665-2439 [email protected] Lakshmi Sankaran Sr GIS Analyst Seminole County Public Works 407-665-5721 [email protected]
Presented at Esri SERUG, 2011
Lakshmi Sankaran, GISP
Public Works Department, Seminole County
Presented at Esri SERUG, 2011
LAKE JESUP Area - 12 sq miles Shoreline - 53 miles Watershed - 136 sq miles Runoff – Creeks and Canals 7 Municipalities in Seminole County
Presented at Esri SERUG, 2011
SUBMERSED AND EMERSED VEGETATION MAPPING Lake Jesup Vegetation Survey July 16-19, 2007 Agencies: — Florida Department of Environmental Protection — Florida Fish and Wildlife Conservation Commission — Seminole County Water Quality — Seminole County Sherriff's Office — St Johns River Water Management District And — Seminole County Public Works GIS — Seminole County Environmental Services Providing — Boats — GPS Units — An ArcPad License — Biologists — GPS Operators — And a whole lot of learning and fun! Presented at Esri SERUG, 2011
SUBMERSED AND EMERSED VEGETATION MAPPING — — — —
Logistics/scheduling by our Lake Management Program Coordinator 5 Teams Agencies bring their boats, biologists County provides GPS units and Operators
Presented at Esri SERUG, 2011
SUBMERSED AND EMERSED VEGETATION MAPPING
Presented at Esri SERUG, 2011
SUBMERSED AND EMERSED VEGETATION MAPPING — Survey of Shoreline Vegetation — Survey of any Underwater Vegetation — Survey of Floating Vegetation
Questions: — Which Shoreline? — FEMA FIS Study 2005 shoreline — How far inwards into the shoreline? — Visible line from boat — What species of vegetation are expected to be found? — Species List provided — How many Transect Sections? — About 1000 ft apart
Presented at Esri SERUG, 2011
SUBMERSED AND EMERSED VEGETATION MAPPING Procedure for Shorelines — Shorelines sections assigned to a team — Sections divided into sub-sections with a pre-assigned ID no. to match Field Book ID. — GPS Operator navigates to start of section and calls out end of section. — GPS operator records only the dominant vegetation from a domain drop down against the shoreline section ID — Biologist records all other species by percentage of coverage of the shoreline section in Field Book.
Polylines Presented at Esri SERUG, 2011
SUBMERSED AND EMERSED VEGETATION MAPPING Procedure for Floating Vegetation — Empty polygon feature class — Create polygon in field by running the airboat around the edge — Assign ID — GPS operator records only the dominant vegetation from a domain drop down against the shoreline section ID — Biologist records all other species by percentage of coverage of the polygon in Field Book.
Polygons Presented at Esri SERUG, 2011
SUBMERSED AND EMERSED VEGETATION MAPPING Procedure for Transects — Boat follows transect line — Biologist drops rake — Drop a GPS point if underwater vegetation found — If polygon is identifiable under water, drop points around perimeter — Assign ID — GPS operator records only the dominant vegetation from a domain drop down against the shoreline section ID — Biologist records all other species in Field Book.
Presented at Esri SERUG, 2011
SUBMERSED AND EMERSED VEGETATION MAPPING
Presented at Esri SERUG, 2011
SUBMERSED AND EMERSED VEGETATION MAPPING — 90 species domain — Had to be re-typed into a table
Field Book
Presented at Esri SERUG, 2011
SUBMERSED AND EMERSED VEGETATION MAPPING What really happened — I had never used a GPS before — Had no ArcPad license — The PW GIS team had used data loggers of the antiquated kind — No team had an experienced GPS operator either — Transect boats needed waypoints to navigate transects via their Garmin — I don’t like the sun Solution — We managed 1 ArcPad license — SemCo Environmental Services provided 4 GPS units (one did not work at all) – they all had Arc Pad — Went through a crash course on GPS from Environmental Services — GPS Settings — ArcPad Projects — Data Dictionary — Uploads and merges Presented at Esri SERUG, 2011
SUBMERSED AND EMERSED VEGETATION MAPPING — Then we trained the GPS Operator team — Test Run on July 16 — GPS files were saved by date and team……
Presented at Esri SERUG, 2011
SUBMERSED AND EMERSED VEGETATION MAPPING The Results — All the field book data was entered into a table in the geodatabase
Presented at Esri SERUG, 2011
SUBMERSED AND EMERSED VEGETATION MAPPING Lake Jesup Vegetation Survey May 3-4, 2010 — Public Works Traffic Engineering has 2 GPS units — Environmental Services has upgraded their GPS units — We know what to expect
However — The shoreline no longer looks the same – water is higher — There has been a restoration project
Presented at Esri SERUG, 2011
The Aquatic Habitat Restoration and Enhancement Sub-section (AHRES) is part of the Florida Fish and Wildlife Conservation Commission. Mission is to manage and restore freshwater aquatic habitats to benefit fish and wildlife.
SUBMERSED AND EMERSED VEGETATION MAPPING Lake Jesup Vegetation Survey May 3-4, 2010 — Keep the same shoreline sections, transects — Map additional exposed shorelines with new ID
Presented at Esri SERUG, 2011
SUBMERSED AND EMERSED VEGETATION MAPPING Map Analysis for a biologist — Native vs Non-Native Species — A Native column was added to the Species list
Presented at Esri SERUG, 2011
SUBMERSED AND EMERSED VEGETATION MAPPING Map Analysis for a biologist — Restoration Area changes
A happy thing!
Presented at Esri SERUG, 2011
SUBMERSED AND EMERSED VEGETATION MAPPING Map Analysis for a biologist — Submersed Vegetation changes
A happy thing!
Presented at Esri SERUG, 2011
SUBMERSED AND EMERSED VEGETATION MAPPING Map Analysis for a biologist — Floating Vegetation changes
YEAR 2007 2010
FLOATING VEGETATION TOTAL NATIVE NON-NATIVE 33 25 8 91 91 0
Number of Polygons surveyed
Presented at Esri SERUG, 2011
SUBMERSED AND EMERSED VEGETATION MAPPING Map Analysis for a biologist — Floating Vegetation changes
Presented at Esri SERUG, 2011
SUBMERSED AND EMERSED VEGETATION MAPPING And in the end — The 2010 Survey was actually more difficult — Biologists noted species not in the GIS domain — The GPS Operators did not follow protocol especially along old shoreline sections and assigned their own IDs — Satellite reception was particularly spotty — Boat went faster than the GPS trace — There were a few re-runs — An airboat was not used to run the polygons – so the polygons were larger than the actual occurrence — There was actually additional work and QA/QC back at the office — It is difficult to record/represent via maps, ever changing nature at such a small scale — Survey of the SR 46 bridge area on 9/28/2010 — Try photo interpretation with ArcGIS 10 using field samples
Presented at Esri SERUG, 2011
Gloria Eby Senior Environmental Scientist Seminole County Water Quality Section Lake Management Program 407-665-2439 [email protected] Lakshmi Sankaran Sr GIS Analyst Seminole County Public Works 407-665-5721 [email protected]
Presented at Esri SERUG, 2011
