Quantum Spatial, Inc.
20190131
NAIP Index of source acquisition dates for Wisconsin
Version
Vector Digital Data
Lexington, KY
Quantum Spatial, Inc.
This data set contains polygons delineating the seamline boundaries of imagery acquired as part of the National Agriculture Imagery Program (NAIP), and used in the creation of DOQQs hosted in FSA image services. These seam polygons can be used as a tool in determining the image source and date of each portion of the imagery. The NAIP acquires 4-band digital ortho imagery from airborne and/or space based platforms during the agricultural growing seasons in the U.S. A primary goal of the NAIP program is to enable availability of ortho imagery within sixty days of acquisition. NAIP provides 60 centimeter ground sample distance ortho imagery rectified within +/- 4 meters to true ground at a 95% confidence level. The tiling format of NAIP imagery is based on a 3.75' x 3.75' quarter quadrangle with a 300 (plus or minus 30) pixel buffer on all four sides. The NAIP quarter quads are formatted to the UTM coordinate system using the North American Datum of 1983 (NAD83). The statewide seamline file, however, is in GCS NAD83 to support the image services.
This index aids USDA Agencies in identifying source acquisition date boundaries for the imagery provided through web services as they administer USDA programs for their customers.
20190118
ESRI shapefile creation date
Irregular
-92.9414363927
-86.7458755098
47.1292111193
42.4334513646
None
Farming
Digital
Mosaic
Ortho Imagery
United States Department of Agriculture (USDA)
Acquisition Date
None
USA
FSA
Field Service Center
Aerial Photography Field Office
APFO
USDA
United States Department of Agriculture (USDA)
Wisconsin
FIPS 55
WI
There are no limitations for access.
None. The USDA-FSA Aerial Photography Field Office asks to be credited in derived products.
Quantum Spatial, Inc.
Chase Thompson
mailing and physical
523 Wellington Way
Lexington
KY
40503
USA
859-277-8700
859-277-8901
cthompson@quantumspatial.com
Monday through Friday 8:00 AM to 5:00 PM (Eastern Time)
All data have been reviewed for correct application of attributes and are accurate to current conditions.
USDA-FSA Aerial Photography Field Office relies on the integrity of the original data collection which was performed by private contractors. Data integrity was validated by the responsible private contractor or sub-contractor. Polygon and chain-node topology present. There are no duplicate arcs and no dangling nodes. The data set contains polygons that do not overlap, except in the case of overlap between flying seasons, there are no polygons that are entered twice, and all areas are completely described. The area features are topologically structured with nodes at all intersections. The dataset is comprised of polygons delineating portions of each exposure used as source data for each part of the underlying imagery, with no gaps in coverage. Attribution includes acquisition dates and times.
To the best knowledge of the USDA-FSA Aerial Photography Field Office this digital data set is complete with no required elements left unrepresented according to contract specifications.
None
Quantum Spatial, Inc.
20190131
Index of source acquisition dates
Vector Digital Data
12000
External Media Types
20190118
Date when Vector Digital Data were prepared
NAIP
Collection date of source image data
The seamline polygon shapefile was created using OrthoVista and ArcGIS 10. The vector delineating the seamline areas was exported from OrthoPro in dgn format. The .dgn was imported into an ESRI file Geodatabase as a polygon feature class. A topology layer was created and validated to check for overlapping polygons, gaps between polygons, and dangling nodes. Dissolving into the largest neighbor polygon eliminated any polygons less than 40,470 square meters. The flight line footprint shapefiles were attributed with the required items and joined to the corresponding seamline polygons. Polygons covering the county area were selected and output to the final shapefile.
withheld
20190118
Monica Chism
Quantum Spatial, Inc.
mailing and physical
523 Wellington Way
Lexington
KY
40503
USA
859-277-8700
859-277-8901
Monday through Friday 8:00 AM to 5:00 PM (Eastern Time)
None
Vector
Simple
FALSE
0
TRUE
TRUE
WGS 1984
WGS 84
6378137.0
298.257224
dBase file (.dbf)
The dBASE file that stores the attribute information of features. When a shapefile is added as a theme to a view in GIS software, this file is displayed as a feature table.
ESRI OnLine Help
Feature Class
0
objectid
objectid
OID
4
10
0
Internal feature number.
Esri
Sequential unique whole numbers that are automatically generated.
date
date
Date
8
0
0
Shape
shape
Geometry
8
0
0
Feature geometry.
Esri
Coordinates defining the features.
st_area(shape)
st_area(shape)
Double
0
0
0
st_perimeter(shape)
st_perimeter(shape)
Double
0
0
0
Entity Name Type Length
---------------- -------- ------
OID ObjectID 4
Shape Polygon
ID String 6
IDATE Date 10
SDATE String 16
EDATE String 16
BCON String 3
CAM_TYPE String 20
CAM_MAN String 50
CAM_MOD String 25
HARD_FIRM String 50
SENSNUM String 50
AC_TYPE String 50
ACTAILNUM String 10
Shape_Area Double 19
RED_RNGE String 10
GREEN_RNGE String 10
BLUE_RNGE String 10
NIR_RNGE String 10
USDA-FSA Aerial Photography Field Office Contract Specifications
Supervisor Customer Services Section
USDA-FSA Aerial Photography Field Office
mailing and physical
2222 West 2300 South
Salt Lake City
UT
84119-2020
USA
801-844-2922
801-956-3653
apfo.sales@slc.usda.gov
In no event shall the creators, custodians, or distributors of this information be liable for any damages arising out of its use (or the inability to use it).
20190130
Quantum Spatial, Inc.
Jay Bowen
mailing and physical
523 Wellington Way
Lexington
KY
40503
USA
859-277-8700
859-277-8901
jbowen@quantumspatial.com
Monday through Friday 8:00 AM to 5:00 PM (Eastern Time)
FGDC Content Standards for Digital Geospatial Metadata
FGDC-STD-001-1998
None
Unclassified
None
Esri ArcGIS 13.2.2.49743
AQD_2018_WI_D
AQD_2018_WI_D
002
0.000
Projected
GCS_WGS_1984
Linear Unit: Meter (1.000000)
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WGS_1984_Web_Mercator_Auxiliary_Sphere
20240612
18355400
20240612
18355400
20190820
15434100
1.0
FALSE
Enterprise Geodatabase Feature Class
0.000
dataset
EPSG
6.18.3(9.3.1.2)
0
20240612