20231201
08241900
FALSE
20210802
06073800
20210802
06073800
NP_Bldg_Area
002
447818.149972
636327.629907
949616.690046
1111372.149999
1
Projected
GCS_North_American_1983_HARN
NAD_1983_HARN_StatePlane_Florida_West_FIPS_0902_Feet
<ProjectedCoordinateSystem xsi:type='typens:ProjectedCoordinateSystem' xmlns:xsi='http://www.w3.org/2001/XMLSchema-instance' xmlns:xs='http://www.w3.org/2001/XMLSchema' xmlns:typens='http://www.esri.com/schemas/ArcGIS/2.7.0'><WKT>PROJCS["NAD_1983_HARN_StatePlane_Florida_West_FIPS_0902_Feet",GEOGCS["GCS_North_American_1983_HARN",DATUM["D_North_American_1983_HARN",SPHEROID["GRS_1980",6378137.0,298.257222101]],PRIMEM["Greenwich",0.0],UNIT["Degree",0.0174532925199433]],PROJECTION["Transverse_Mercator"],PARAMETER["False_Easting",656166.6666666665],PARAMETER["False_Northing",0.0],PARAMETER["Central_Meridian",-82.0],PARAMETER["Scale_Factor",0.9999411764705882],PARAMETER["Latitude_Of_Origin",24.33333333333333],UNIT["Foot_US",0.3048006096012192],AUTHORITY["EPSG",2882]]</WKT><XOrigin>-17791300</XOrigin><YOrigin>-41645400</YOrigin><XYScale>3048.00609601219</XYScale><ZOrigin>0</ZOrigin><ZScale>1</ZScale><MOrigin>0</MOrigin><MScale>1</MScale><XYTolerance>0.00328083333333333</XYTolerance><ZTolerance>0.001</ZTolerance><MTolerance>0.001</MTolerance><HighPrecision>true</HighPrecision><WKID>2882</WKID><LatestWKID>2882</LatestWKID></ProjectedCoordinateSystem>
Linear Unit: Foot_US (0.304801)
1.0
INSPIRE
INSPIRE Metadata Directive
150000000
5000
ESRI ArcCatalog 9.3.1.1850
en
Depicts Sarasota County addressable building footprint polygons with elevation information extracted from stereo imagery that was collected using a Digital Mapping Camera (DMC) at an average elevation of 10,000 ft above mean sea level to produce 1 ft pixel resolution imagery. Imagery collected in December 2010 and January 2011. The dataset was then updated using imagery flown in December 2010 and January 2011 along with parcels that had new permits over the last year. During this update some buildings and outbuildings were found to have been added, removed or altered and the dataset reflects those changes.
Information portayed herin was collected to support the Sarasota County 911 Emergency Management System.
Photo Science
BLDG_AREA
BLDG_AREA
vector digital data
withheld
ground condition
20081208
20110930
As needed
-82.642075
-82.060898
27.391565
26.943868
447818.147675
636327.631876
949294.182817
1111516.755024
0.000000
193.718500
Buildings
Elevation
Sarasota
Sarasota County
Florida
File Geodatabase Feature Class
Evan Brown
Sarasota County GIS
mailing and physical address
1001 Sarasota Center Boulevard
Sarasota
FL
34238
USA
9418610529
9418610986
ebrown@scgov.net
Esri ArcGIS 12.7.0.26828
NP_Bldg_Area
-82.642073
-82.060898
27.391167
26.944755
1
0.000000
193.720000
-82.642075
-82.060898
27.391565
26.943868
1
002
002
002
Information portayed herin was collected to support the Sarasota County 911 Emergency Management System.
<DIV STYLE="text-align:Left;"><DIV><DIV><P><SPAN>Depicts Sarasota County addressable building footprint polygons with elevation information extracted from stereo imagery that was collected using a Digital Mapping Camera (DMC) at an average elevation of 10,000 ft above mean sea level to produce 1 ft pixel resolution imagery. Imagery collected in December 2008 and January 2009. The dataset was then updated using imagery flown in December 2009 and January 2010 along with parcels that had new permits over the last year. During this update some buildings were found to have been added, removed or altered and the dataset reflects those changes. The dataset was further updated using imagery flown in December 2010 and January 2011 adding all rooftops with no minimum mapping unit. RoofElevation values represent roof peak elevation in NAVD88. Dataset was updated in March 2014 using stereo DMC2 imagery flown at an average elevation of 17000 feet and utilizing the county parcel data to add an additional 6200 building footprints.</SPAN></P><P><SPAN /></P></DIV></DIV></DIV>
Photo Science 10033 MLK Street N. Suite 200 St. Petersburg, FL 33716 Phone: 727-576-9500 Fax: 727-576-9600 www.photoscience.com
en
FGDC Content Standards for Digital Geospatial Metadata
FGDC-STD-001-1998
local time
Dan Casey
Photo Science
10033 MLK St. N Suite 200
Safety Harbor
FL
33716
USA
7275769500
Project Manager
7275769600
dcasey@photoscience.com
20100920
ArcGIS Metadata
1.0
dataset
Downloadable Data
002
withheld
Local Area Network
File Geodatabase Feature Class
Enterprise Geodatabase Feature Class
Vector
Simple
FALSE
0
TRUE
FALSE
GCS_North_American_1983_HARN
NAD_1983_HARN_StatePlane_Florida_West_FIPS_0902_Feet
coordinate pair
survey feet
0.000328
0.000328
D_North_American_1983_HARN
Geodetic Reference System 80
6378137.000000
298.257222
Explicit elevation coordinate included with horizontal coordinates
0.000100
NAD_1983_HARN_StatePlane_Florida_West_FIPS_0902_Feet
EPSG
6.3(9.0.0)
0
NP_Bldg_Area
Feature Class
0
A polygon that represent an addressable building collected from stereo imagery at the lowest "drip line" where water falls off at the lowest level on a multi-tiered building following and at the same elevation around the entire building.
Photo Science
OBJECTID
OBJECTID
OID
4
10
0
Internal feature number.
ESRI
Sequential unique whole numbers that are automatically generated.
FacilityID
FacilityID
String
18
0
0
RoofElevation
RoofElevation
Double
8
38
8
BaseElevation
BaseElevation
Double
8
38
8
LastEditor
LastEditor
String
12
0
0
LastUpdate
LastUpdate
Date
8
0
0
Creator
Creator
String
12
0
0
CreateDate
CreateDate
Date
8
0
0
SHAPE
Shape
Geometry
8
0
0
Feature geometry.
ESRI
Coordinates defining the features.
Shape.STArea()
Shape.STArea()
Double
0
0
0
Shape.STLength()
Shape.STLength()
Double
0
0
0
20210802
827 frames collected along 23 flight lines running north/south were used to create stereomodels in Intergraph Soft Copy. Using the feature extraction module, all addressable buildings were photogrametrically delineated by drawing a polygon at the lowest "drip line" around the building. An elevation point was placed at the highest surface point of the building.
Intergraph Soft Copy
withheld
A visual QC to ensure all addressable buildings were collected was performed in stereo.
withheld
ESRI ArcGIS v. 10.0
The shapfiles exported from Win Atlas were translated to the file geodatabase format where the final attribute names were created and applied
A final visual QC was completed using the geodatabase with the county ortho photos as a back drop to verify all addressable buildings were collected.
ESRI ArcGIS v. 10.0
withheld
A final QC accuracy test of the extracted buildings was performed comparing the building elevation point to the LiDAR on a 1% subset of the buildings that were not obscurred. The results showed that most of the building points were within 1 foot of the LiDAR data with the exception of the points that fell in the sidelap of the imagery. The points that fell in the sidelap were generally off from the LiDAR data by 2 to 4 feet. This difference in the Z values in some of the sidelap areas is due to aerial triangulation not being performed on the source imagery. IMU data was used to generate the exterior orientation parameters used to set up the stereo models. Whereas the intent of this building dataset is to serve as a planning tool only and not intended to portray accurate Z values, the resultant dataset serves its purpose.
Microstation V8
withheld
Imagery
DMC imagery flown in December 2010 and January 2011 at an average flying height of 10,000 ft to produce a 1 ft pixel resolution image.
LiDAR
LiDAR flown using Leica ALS50 II in June through August 2007 at 1 foot accuracy.
All addressable buildings were collected within the county boundary using the following photogrametric collection guidelines: Buildings collected have a verifiable address in the counties 911 system Collect all homes, outbuildings, commercial and industrial buildings, mobile homes, stadiums, front offices for RV parks or other structures that receive mail. Do not collect sheds, outbuildings, single car detached garages, RV's or other structures that do not have a mailing address. The exception to this rule is to collect 2 car or larger detached garages at residential buildings.
When a building is obscured by trees, clouds or other buildings, the obscured portions of the building were delineated using best judgment to place the line in a logical position, i.e., cartographic license is used to make this extrapolation. An "obscured" attribute was placed on the polygon otherwise lit was left as <Null>.
2015-03-31T00:00:00