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10045900
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FGDC CSDGM Metadata
FALSE
Contour1ft_14950E743424N
1497415.500000
1497672.000000
746014.500000
746064.000000
1
002
Projected
GCS_North_American_1983
Linear Unit: Foot_US (0.304801)
NAD_1983_StatePlane_Tennessee_FIPS_4100_Feet
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20220707
09384700
20220707
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CONTOUR
Contour1ft_14950E743424N
Feature Class
11
OBJECTID
OBJECTID
OID
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Internal feature number.
Esri
Sequential unique whole numbers that are automatically generated.
Shape
Shape
Geometry
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0
0
Feature geometry.
Esri
Coordinates defining the features.
Id
Id
Integer
4
0
0
ELEVATION
ELEVATION
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0
0
Index10ft
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0
0
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0
0
Index50ft
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0
0
InLine_FID
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0
0
Shape_Length
Shape_Length
Double
8
0
0
Length of feature in internal units.
Esri
Positive real numbers that are automatically generated.
Karen Kwsanowski
GroundPoint Technologies LLC
Chief Technical Officer
315-459-1515
17 Highland Dr
Marcellus
NY
13108
US
20220707
ArcGIS Metadata
1.0
NA
999-999-9999
Not available
Not available
OK
99999
US
withheld
File Geodatabase Feature Class
Contour1ft_14950E743424N
2022-07-07
Karen Kwasnowski
document
Lidar Data Products for the Montgomery County, TN collection area including a 3ft Digital Elevation Model (DEM) and tiled 1ft Contours.
The lidar dataset was collected to be utilized for the creation of a digital elevation model and 1ft contours. Other uses expected.
Thom S. Salter
Pictometry International Corp.
Manager, Photogrammetric Production
585-486-0093
585-486-0098
100 Town Centre Drive, Suite A
Rochester
NY
14623
US
0900-1700
Tennessee
Geographic Names Index Service
LiDAR
EDI Thesaurus
LiDAR
Tennessee
See access and use constraints information.
Access to this data is constrained by the license agreements between Pictometry International and Montgomery County, TN
Access to this data is constrained by the license agreements between Pictometry International and Montgomery County, TN.
Version 6.2 (Build 9200) ; Esri ArcGIS 10.8.1.14362
Publication Date
2022-01-01
-112.125088
-111.678816
43.623514
43.78476
1
-87.600151
-87.599277
36.372324
36.372177
Access to this data is constrained by the license agreements between Pictometry International and Montgomery County, TN.
Visual checks were used to make sure all features and feature classes are complete. The following topology rules are run on the contour tiles: Must not overlap, Must not have dangles, Must not self intersect.
Visual checks were used to make sure all features and feature classes are complete. The following topology rules are run on the contour tiles: Must not overlap, Must not have dangles, Must not self intersect.
Visual checks were used to make sure all features and feature classes are complete.
DEM, and 1ft Contours: Breaklines for hydrographic features are digitized using the intensity values of the lidar data along with publicly available imagery from ESRI. The hydrographic features, include water bodies > 1 acre and wide rivers > 50ft wide. Elevation values from the lidar data are conflated to the “z-values” of the features using QCoherent’s LP360 software. Elevation values are conflated to the river centerline at 9ft intervals with a downstream constraint algorithm. The elevation values from the river centerlines are copied to the surrounding wideriver polygon verteces, which flattens the wide river from stream bank to stream bank. Elevation values for the water body polygons are added as an attribute to the feature class based on the minimum lidar elevation value along the shoreline of the water body. The Ground points (class 2) within a 3' buffer of waterbody and wideriver polygons are removed from the Ground surface model. The remaining lidar Ground points and breakline feature classes are used to create a DEM with 3ft cell resolution. The contours are created from the DEM. The contours are edited in the following manner: Lines shorter than 18ft (2 raster cells) are removed. The contour lines are smoothed using a PAEK algorithm with a 3m smoothing tolerance. Attributes are added for 10ft, 20ft, and 50ft Index contours. A hillshade is created of the DEM using default ESRI illumination parameters..
2022-07-07
dataset
EPSG
5.3(9.0.0)
11
Simple
FALSE
11
TRUE
FALSE