65818
2018 Texas NAIP 4-Band 8 Bit Imagery
Data Set
Published / External
49403
Imagery - partner (no harvest)
Project
Completed
2021-10-31
This data set contains imagery from the National Agriculture
Imagery Program (NAIP). The NAIP program is administered by
USDA FSA and has been established to support two main FSA
strategic goals centered on agricultural production.
These are, increase stewardship of America's natural resources
while enhancing the environment, and to ensure commodities
are procured and distributed effectively and efficiently to
increase food security. The NAIP program supports these goals by
acquiring and providing ortho imagery that has been collected
during the agricultural growing season in the U.S. The NAIP
ortho imagery is tailored to meet FSA requirements and is a
fundamental tool used to support FSA farm and conservation
programs. Ortho imagery provides an effective, intuitive
means of communication about farm program administration
between FSA and stakeholders.
New technology and innovation is identified by fostering and
maintaining a relationship with vendors and government
partners, and by keeping pace with the broader geospatial
community. As a result of these efforts the NAIP program
provides three main products: DOQQ tiles,
Compressed County Mosaics (CCM), and Seamline shape files
The Contract specifications for NAIP imagery have changed
over time reflecting agency requirements and improving
technologies. These changes include image resolution,
horizontal accuracy, coverage area, and number of bands.
In general, flying seasons are established by FSA and are
targeted for peak crop growing conditions. The NAIP
acquisition cycle is based on a minimum 3 year refresh of base
ortho imagery. The tiling format of the NAIP imagery is based
on a 3.75' x 3.75' quarter quadrangle with a 300 pixel buffer
on all four sides. NAIP quarter quads are formatted to the UTM
coordinate system using the North American Datum of 1983.
NAIP imagery may contain as much as 10% cloud cover per tile.
NAIP imagery is available for distribution within 60 days
of the end of a flying season and is intended to provide current
information of agricultural conditions in support of USDA farm
programs. For USDA Farm Service Agency, the 1 meter and 1/2 meter
GSD product provides an ortho image base for Common Land Unit
boundaries and other data sets. The 1 meter and 1/2 meter NAIP
imagery is generally acquired in projects covering full states in
cooperation with state government and other federal agencies that
use the imagery for a variety of purposes including land use
planning and natural resource assessment. The NAIP is also used
for disaster response. While suitable for a variety of uses,
prior to 2007 the 2 meter GSD NAIP imagery was primarily intended
to assess "crop condition and compliance" to USDA farm program
conditions. The 2 meter imagery was generally acquired only
for agricultural areas within state projects.
11965
Theme
ISO 19115 Topic Category
imageryBaseMapsEarthCover
Theme
Aerial Compliance
Theme
Compliance
Theme
Digital Ortho rectified Image
Theme
NAIP
Theme
Ortho Rectification
Theme
Quarter Quadrangle
Theme
farming
Temporal
2018
Spatial
Geographic Names Information System
TX
Spatial
Geographic Names Information System
Texas
Office for Coastal Management
Charleston
SC
Data Set
Irregular
Image (digital)
32-bit pixels, 4 band color(RGBIR) values 0 - 255
None
Users must assume responsibility to determine the appropriate use of these data. DATA SHOULD NOT BE USED FOR LEGALLY BINDING APPLICATIONS.
Data Steward
2021-10-31
Organization
NOAA Office for Coastal Management
NOAA/OCM
coastal.info@noaa.gov
2234 South Hobson Ave
Charleston
SC
29405-2413
(843) 740-1202
https://coast.noaa.gov
NOAA Office for Coastal Management Home Page
Online Resource
Distributor
2021-10-31
Organization
NOAA Office for Coastal Management
NOAA/OCM
coastal.info@noaa.gov
2234 South Hobson Ave
Charleston
SC
29405-2413
(843) 740-1202
https://coast.noaa.gov
NOAA Office for Coastal Management Home Page
Online Resource
Metadata Contact
2021-10-31
Organization
NOAA Office for Coastal Management
NOAA/OCM
coastal.info@noaa.gov
2234 South Hobson Ave
Charleston
SC
29405-2413
(843) 740-1202
https://coast.noaa.gov
NOAA Office for Coastal Management Home Page
Online Resource
Point of Contact
2021-10-31
Organization
NOAA Office for Coastal Management
NOAA/OCM
coastal.info@noaa.gov
2234 South Hobson Ave
Charleston
SC
29405-2413
(843) 740-1202
https://coast.noaa.gov
NOAA Office for Coastal Management Home Page
Online Resource
Ground Condition
-106.93527777778
-92.81305555556
34.28194444444
25.84777777778
Range
2018-05-30
2019-01-26
Yes
2
Point
No
Row
1
Column
1
Projected
EPSG:26914
NAD83 / UTM zone 14N
North American Datum 1983
GRS 1980
6378137
298.257222101
NAD83
UTM zone 14N
Transverse Mercator
Latitude of natural origin
0° 0' 0" N
Longitude of natural origin
99° 0' 0" W
Scale factor at natural origin
0.9996
False easting
500000
metre
False northing
0
metre
1
Easting
E
metre
east
2
Northing
N
metre
north
Projected
EPSG:26915
NAD83 / UTM zone 15N
North American Datum 1983
GRS 1980
6378137
298.257222101
NAD83
UTM zone 15N
Transverse Mercator
Latitude of natural origin
0° 0' 0" N
Longitude of natural origin
93° 0' 0" W
Scale factor at natural origin
0.9996
False easting
500000
metre
False northing
0
metre
1
Easting
E
metre
east
2
Northing
N
metre
north
Unclassified
There are no limitations for access.
None. The USDA-FSA Aerial Photography Field office
asks to be credited in derived products.
https://coast.noaa.gov/dataregistry/
Downloadable Data
Erdas Imagine (.img) and TIFF / BigTIFF / GeoTIFF (.tif)
IMG - ERDAS Imagine
https://coast.noaa.gov/dataviewer
Online Resource
https://coast.noaa.gov/dataviewer/#/imagery/search/where:ID=9362
Online Resource
https://coastalimagery.blob.core.windows.net/digitalcoast/TX_NAIP_2017_9362/index.html
Online Resource
2017-11-13
Converted from Content Standard for Digital Geospatial Metadata (version FGDC-STD-001-1998) using 'fgdc_to_inport_xml.pl' script. Contact Tyler Christensen (NOS) for details.
2018-07-22
Date that the source FGDC record was last modified.
None
NAIP horizontal accuracy specifications have evolved over
the life of the program. From 2003 to 2004 the
specifications were as follows: 1-meter GSD imagery was
to match within 3-meters, and 2-meter GSD to match within 10
meters of reference imagery. For 2005 the 1-meter GSD
specification was changed to 5 meters matching the reference
imagery. In 2006 a pilot project was performed using true
ground specifications rather than reference imagery. All
states used the same specifications as 2005 except Utah,
which required a match of +/- 6 meters to true ground.
In 2007 all specifications were the same as 2006 except
Arizona used true ground specifications and all other states
used reference imagery. In 2008 and subsequent years
no 2-meter GSD imagery was acquired and all specifications
were the same as 2007 except approximately half of the
states acquired used true ground specifications and the
other half used reference imagery. The 2008 states that
used absolute ground control where; Indiana, Minnesota,
New Hampshire, North Carolina, Texas, Vermont, and Virginia.
From 2009 to present all NAIP imagery acquisitions used
the +/- 6 meters to ground specification.
None
NAIP 3.75 minute tile file names are based
on the USGS quadrangle naming convention.
1
Digital imagery was collected at a nominal GSD of 40cm using 10 Cessna 441's, one Cessna 414, one
Reims F406, three Piper PA31's, one Piper PAY2 and one Swearingen Merlin-3 aircraft flying at an
average flight height of 8400m AGL for the SH120 acquisition and 4400m AGL for SH100 acquisition.
Aircraft flew with Leica Geosystem's ADS100/SH100 digital sensors with firmware 4.57 or
ADS100/SH120 digital sensors with firmware 4.57. Each sensor collected 12 image bands Red, Green,
Blue and Near-infrared at each of three look angles; Backward 19 degrees, Forward 26 degrees and
Nadir for the SH100. Backward 10 degrees, Forward 14 degrees, and Nadir for the SH120. The Nadir
Green band was collected in high resolution mode effectively doubling the resolution for that band. The
ADS100 spectral ranges are; Red 619-651nm, Green 525-585nm, Blue 435-495nm and Near-infrared at
808-882nm. The CCD arrays have a pixel size of 5.0 microns in a 20000x1 format at nadir; a 18000x1
format at the backward look angle and a 16000x1 format at the forward look angle. The CCD's have a
dynamic range of 72db and the A/D converters have a resolution of 14bits. The ADS is a push-broom
sensor the ground footprint of the imagery is approximately 8km wide at a nominal 40cm GSD by the
length flightline. The maximum flightline length is limited to approximately 175km. The factory
calibrations and IMU alignments for each sensor (Serial Numbers: 10510, 10511, 10512, 10514, 10519,
10552, 10522, 10527, 10528, 10530, 10531, 10534, 10537, 10540, 10554, 12529) were tested and
verified by in-situ test flights before the start of the project. The Leica MissionPro Flight Planning
Software is used to develop the flight acquisition plans. Flight acquisition sub blocks are designed first
to define the GNSS base station logistics, and to break the project up into manageable acquisition units.
The flight acquisition sub blocks are designed based on the specified acquisition season, native UTM
zone of the DOQQs, flight line length limitations (to ensure sufficient performance of the IMU solution)
as well as air traffic restrictions in the area. Once the sub blocks have been delineated they are brought
into MissionPro for flight line design. The design parameters used in MissionPro will be 30% lateral
overlap and 40cm resolution. The flight lines have been designed with a north/south orientation or
east/west where required for efficiency. The design takes into account the latitude of the state, which
affects line spacing due to convergence as well as the terrain.
2019-10-02T00:00:00
2
SRTM elevation data is used in the
MissionPro design to ensure the 50cm GSD is achieved over all types of terrain. The raw data was
downloaded from the sensors after each flight using Leica XPro software. The imagery was then
georeferenced using the 200Hz GPS/INS data creating an exterior orientation for each scan line
(x/y/z/o/p/k). Leica Xpro APM software was used to automatically generate tiepoint measurements
between the forward, nadir and backward look angles for each line and to tie all flight lines together.
The resulting point data and exterior orientation data were used to perform a full bundle adjustment
using ORIMA software. Blunders were removed, and additional tie points measured in weak areas to
ensure a robust solution. Once the point data was clean and point coverage was acceptable, photo
-identifiable GPS-surveyed ground control points were introduced into the block adjustment. The bundle
adjustment process produces revised exterior orientation data for the sensor with GPS/INS, datum, and
sensor calibration errors modeled and removed. Using the revised exterior orientation from the bundle
adjustment, orthorectified image strips were created with Xpro software and the June 2018 USGS 10m
NED DEM. The Xpro orthorectification software applies an atmospheric-BRDF radiometric correction to
the imagery. This correction compensates for atmospheric absorption, solar illumination angle and bi
-directional reflectance. The orthorectified strips were then overlaid with each other and the ground
control to check accuracy. Once the accuracy of the orthorectified image strips were validated the strips
were then imported into Inpho's OrthoVista 7.1.2 package which was used for the final radiometric
balance, mosaic, and DOQQ sheet creation.
2019-10-02T00:00:00
gov.noaa.nmfs.inport:65818
Erik Hund
2021-11-19T14:42:29
Kirk Waters
2024-01-11T12:42:48
2024-01-11
OCM Partners
OCMP
1002
Public
No
2021-11-19
1 Year
2022-11-19