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Summary
Item Identification
Keywords
Physical Location
Data Set Info
Support Roles
Extents
Spatial Info
Access Info
Distribution Info
Tech Environment
Data Quality
Lineage
Catalog Details

Summary

Short Citation
OCM Partners, 2024: 2021 Illinois NAIP 4-Band 8 Bit Imagery, https://www.fisheries.noaa.gov/inport/item/68085.
Full Citation Examples

Abstract

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.

Distribution Information

Access Constraints:

There are no limitations for access.

Use Constraints:

None. The USDA-FSA Aerial Photography Field office asks to be credited in derived products.

Controlled Theme Keywords

imageryBaseMapsEarthCover

Child Items

No Child Items for this record.

Contact Information

Point of Contact
NOAA Office for Coastal Management (NOAA/OCM)
coastal.info@noaa.gov
(843) 740-1202

Metadata Contact
NOAA Office for Coastal Management (NOAA/OCM)
coastal.info@noaa.gov
(843) 740-1202

Extents

Geographic Area 1

-91.54722222222° W, -87.40666666667° E, 42.72277777778° N, 36.8975° S

Time Frame 1
2021-10-15 - 2021-11-09

Item Identification

Title: 2021 Illinois NAIP 4-Band 8 Bit Imagery
Status: Completed
Publication Date: 2022-10-25
Abstract:

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.

Purpose:

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 60 centimeter GSD product provides an ortho image base for Common Land Unit boundaries and other data sets. The 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.

Supplemental Information:

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 were; Indiana, Minnesota, New Hampshire, North Carolina, Texas, Vermont, and Virginia. Beginning in 2009, all NAIP imagery acquisitions used the +/- 6 meters to ground and in 2016 the specification was changed to +/- 4 meters to true ground.

Keywords

Theme Keywords

Thesaurus Keyword
ISO 19115 Topic Category
imageryBaseMapsEarthCover
UNCONTROLLED
None Aerial Compliance
None Compliance
None Digital Ortho rectified Image
None farming
None NAIP
None Ortho Rectification
None Quarter Quadrangle

Temporal Keywords

Thesaurus Keyword
UNCONTROLLED
None 2021

Spatial Keywords

Thesaurus Keyword
UNCONTROLLED
Geographic Names Information System IL
Geographic Names Information System Illinois

Physical Location

Organization: Office for Coastal Management
City: Charleston
State/Province: SC

Data Set Information

Data Set Scope Code: Data Set
Maintenance Frequency: Irregular
Data Presentation Form: Image (digital)
Entity Attribute Overview:

32-bit pixels, 4 band color(RGBIR) values 0 - 255

Entity Attribute Detail Citation:

None

Distribution Liability:

Users must assume responsibility to determine the appropriate use of these data. DATA SHOULD NOT BE USED FOR LEGALLY BINDING APPLICATIONS.

Support Roles

Data Steward

CC ID: 1188038
Date Effective From: 2022-08-24
Date Effective To:
Contact (Organization): NOAA Office for Coastal Management (NOAA/OCM)
Address: 2234 South Hobson Ave
Charleston, SC 29405-2413
Email Address: coastal.info@noaa.gov
Phone: (843) 740-1202
URL: https://coast.noaa.gov

Distributor

CC ID: 1188040
Date Effective From: 2022-08-24
Date Effective To:
Contact (Organization): NOAA Office for Coastal Management (NOAA/OCM)
Address: 2234 South Hobson Ave
Charleston, SC 29405-2413
Email Address: coastal.info@noaa.gov
Phone: (843) 740-1202
URL: https://coast.noaa.gov

Metadata Contact

CC ID: 1188041
Date Effective From: 2022-08-24
Date Effective To:
Contact (Organization): NOAA Office for Coastal Management (NOAA/OCM)
Address: 2234 South Hobson Ave
Charleston, SC 29405-2413
Email Address: coastal.info@noaa.gov
Phone: (843) 740-1202
URL: https://coast.noaa.gov

Point of Contact

CC ID: 1188039
Date Effective From: 2022-08-24
Date Effective To:
Contact (Organization): NOAA Office for Coastal Management (NOAA/OCM)
Address: 2234 South Hobson Ave
Charleston, SC 29405-2413
Email Address: coastal.info@noaa.gov
Phone: (843) 740-1202
URL: https://coast.noaa.gov

Extents

Currentness Reference: Ground Condition

Extent Group 1

Extent Group 1 / Geographic Area 1

CC ID: 1188056
W° Bound: -91.54722222222
E° Bound: -87.40666666667
N° Bound: 42.72277777778
S° Bound: 36.8975

Extent Group 1 / Time Frame 1

CC ID: 1188055
Time Frame Type: Range
Start: 2021-10-15
End: 2021-11-09

Spatial Information

Spatial Representation

Representations Used

Grid: Yes

Grid Representation 1

CC ID: 1188047
Dimension Count: 2
Cell Geometry: Point
Transformation Parameters Available?: No

Axis Dimension 1

Dimension Type: Column
Size: 1

Axis Dimension 2

Dimension Type: Row
Size: 1

Access Information

Security Class: Unclassified
Data Access Policy:

Data is available for online custom download.

Data Access Constraints:

There are no limitations for access.

Data Use Constraints:

None. The USDA-FSA Aerial Photography Field office asks to be credited in derived products.

Distribution Information

Distribution 1

CC ID: 1188042
Start Date: 2022-08-24
End Date: Present
Download URL: https://coast.noaa.gov/dataviewer/#/imagery/search/where:ID=9599
Distributor: NOAA Office for Coastal Management (NOAA/OCM) (2022-08-24 - Present)

Distribution 2

CC ID: 1188043
Start Date: 2022-08-24
End Date: Present
Download URL: https://coastalimagery.blob.core.windows.net/digitalcoast/IL_NAIP_2021_9599/index.html
Distributor: NOAA Office for Coastal Management (NOAA/OCM) (2022-08-24 - Present)

Technical Environment

Description:

Unknown

Data Quality

Accuracy:

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 were; Indiana, Minnesota, New Hampshire, North Carolina, Texas, Vermont, and Virginia. Beginning in 2009, all NAIP imagery acquisitions used the +/- 6 meters to ground and in 2016 the specification was changed to +/- 4 meters to true ground.

Completeness Report:

None

Conceptual Consistency:

NAIP 3.75 minute tile file names are based

on the USGS quadrangle naming convention.

Lineage

Process Steps

Process Step 1

CC ID: 1188050
Description:

DOQQ Production Process Description;

USDA FSA APFO NAIP Program 2021;

The imagery was collected using the following digital sensors:

Leica ADS-100 (Serial Number 10530),

Leica ADS-100 (Serial Number 10510),

Leica ADS-100 (Serial Number 10515),

Leica ADS-100 (Serial Number 10522),

Leica ADS-100 (Serial Number 10537),

Leica ADS-100 (Serial Number 10519),

Leica ADS-100 (Serial Number 10552)

with Flight and Sensor Control Management

System (FCMS) firmware:

v4.57 and v4.6,

Cameras are calibrated radiometrically and geometrically

by the manufacturer and are all certified by the USGS.

Collection was performed using a combination of the

following twin-engine aircraft with turbines flying

at 27,100 ft above mean terrain.

Plane types:

C441, C414, Rockwell Turbo Commander

Tail numbers:

N441EH,

N414EH,

N440EH,

N441FS,

N2NQ,

N811HJ,N690LS,

With these flying heights, there is a 27% sidelap,

giving the collected data nominal ground sampling distance

of 0.60 meters.

Based-upon the CCD Array configuration present in

the ADS digital sensor, imagery for each flight

line is 20,000-pixels in width. Red, Green, Blue,

Near-Infrared and Panchromatic image bands were collected.

The ADS 100 has the following band specifications:

Red 619-651,

Green 525-585,

Blue 435-495,

Near Infrared 808-882,

all values are in nanometers.

Process Date/Time: 2022-02-01 00:00:00

Process Step 2

CC ID: 1188051
Description:

Flight planning was performed in Leica MissionPro over a

buffered boundary covering DOQQ extents provided by the USDA.

A 500m reduced resolution DEM file was used to determine

ground heights. A targeted flight altitude of approximately

27,000 feet above ground level for native 60cm image

acquisition with sidelap of 27% was used

for flight planning parameters. Five aircraft were utilized

for acquisition, the seamline

shapefile clarifies which aircraft were used for a given area.

All aircraft were equipped with Leica

ADS100 systems where utilized for data

capture. The Leica ADS100 pushbroom sensor

has been calibrated by the manufacturer as well as validated

against a local calibration range. The calibration includes

measuring the radiometric and geometric properties of the

camera. These data are used in the Post Processing Software

to eliminate the radiometric and geometric distortion.

All aerial imagery was collected with associated GPS/IMU

data. ADS collection requires high quality IMU data for

processing and was critical for early access hosting of digital

data to the web for USDA interim access and review.

After early access web delivery was complete, all

imagery was triangulated using Leica XPro in which

the airborne GPS data was constrained to expected limits.

To validate the accuracy of the block adjustment derived from

GPS/IMU, sensor parameters and conjugate point measurements,

photo identifiable ground control points were field surveyed within

each State. These points were surveyed using GPS techniques to

produce coordinates that are accurate to +/- 0.25 meters RMSE in XYZ.

The GPS surveying techniques utilized assured that the coordinates

are derived in the required project datum and relative to an approved

National Reference System. If the block does not fit the

control points within specifications the pass and tie

points were reviewed for blunders and weak areas. If,

after these corrections were made, the block still

does not fit the control well the GPS and IMU processing were

reviewed. Once the block has proper statistics and fits the

control to specifications, the final bundle adjustment was

made. As AT points are frequently on man-made and other

vertical features not included in the DEM, these ortho

points can only be used to indicate regions of error by the

clusters of points that predict excessive horizontal displacement.

Process Date/Time: 2022-02-01 00:00:00

Process Step 3

CC ID: 1188052
Description:

The final adjustments assure a high quality relative adjustment

and a high quality absolute adjustment limited to the

airborne GPS data accuracy. This process assures the final

absolute accuracy of all geopositioned imagery. Both

signalized and photo identified ground control were used to

QC and control the IMU/GPS based aerial triangulation bundle

block solution. Surdex Grouping Tool provides real-time updates

of the USDA APFO Image Metrics. The image technician adjusts

image correction parameters to bring the radiometric

characteristics of large groups of images within the Image

Metrics ranges. For each project area the highest resolution

DEM or LiDAR was obtained and utilized for rectification of captured

imagery.

A visual inspection of the final DEM using color cycled

classification by elevation and a shaded relief was performed

to check for gaps, corruption and gross errors.

The predicted horizontal error for each

point was added as an attribute in the SURDEX enterprise

database. An operator reviews ortho seams

in areas these predicted errors indicate horizontal error in

excess of the contract specifications. Any imagery errors

introduced by source DEM required patching from an alternate

perspective or strip of photography.

Processing hardware used included various brands of survey grade

GPS receivers, various brands and models of computers,

RAID6 storage, calibrated monitors, various brands of monitor

calibration colorimeters. Leica XPro was used for post

processing of ADS pushbroom data, triangulation and

orthorectification. SURDEX software was used to color correct

and remove bidirectional reflectance, vignetting and other

illumination trends. USDA APFO Image Metrics are measured and

images corrected to conform to the Image Metrics using

SURDEX software. GPS/IMU data was reduced to projected

coordinates in the appropriate UTM zone using

Inertial Explorer software from Novatel. Aerial Triangulation

and orthorectification was performed using Leica XPro. SURDEX

software was used to adjust for minor radiometric

variation between adjacent images. SURDEX software was used

to calculate the optimal seam path, check seam topology and

create master tiles. SURDEX ortho software generates

occlusion/smear polygons used during seam review

of steep terrain. SURDEX software was used to

visually inspect master tiles for seam and image defects.

SURDEX software was used to project and cut final DOQQ image

files from masters.

Process Date/Time: 2022-02-01 00:00:00

Process Step 4

CC ID: 1188053
Description:

SURDEX software was used to create CCM

metadata. Lizardtech GeoExpress version 10.0.1.5035 was used

to create the CCM image file. SURDEX software was

used to perform final formatting, QC and naming of the DOQQ.

USGS metadata parser software was used to validate the metadata.

Various versions of Microsoft Windows were used in all phases of

production. Grouping Tool was used again after DOQQ and CCM

production to provide a quality assurance check. Individual

DOQQ and CCM may not meet the USDA APFO Image Metrics ranges

due to land cover. The goal is to have the state as a

whole meet the Image Metrics. All products are reviewed

by independent personnel prior to delivery.

The delivery is checked for omissions, commissions,

naming, formatting, specification compliance and data integrity.

Process Date/Time: 2022-08-04 00:00:00

Catalog Details

Catalog Item ID: 68085
GUID: gov.noaa.nmfs.inport:68085
Metadata Record Created By: Erik Hund
Metadata Record Created: 2022-10-25 15:21+0000
Metadata Record Last Modified By: SysAdmin InPortAdmin
Metadata Record Last Modified: 2023-05-30 18:10+0000
Metadata Record Published: 2022-10-25
Owner Org: OCMP
Metadata Publication Status: Published Externally
Do Not Publish?: N
Metadata Last Review Date: 2022-10-25
Metadata Review Frequency: 1 Year
Metadata Next Review Date: 2023-10-25