Slide Menu
Search Help Show/Hide Menu
Short Citation:
OCM Partners, 2023: 2012 Coastal Virginia NAIP Digital Ortho Photo Imagery,

Item Identification

Title: 2012 Coastal Virginia NAIP Digital Ortho Photo Imagery
Short Name: 2012_virginia_naip
Status: Completed
Publication Date: 2012-10-29

This data set contains imagery from the National Agriculture

Imagery Program (NAIP). NAIP acquires digital ortho imagery

during the agricultural growing seasons in the continental U.S..

A primary goal of the NAIP program is to enable availability of

of ortho imagery within one year of acquisition. NAIP provides

four main products: 1 meter ground sample distance (GSD) ortho

imagery rectified to a horizontal accuracy of within +/- 5

meters of reference digital ortho quarter quads (DOQQ's) from

the National Digital Ortho Program (NDOP); 2 meter GSD

ortho imagery rectified to within +/- 10 meters of reference

DOQQs; 1 meter GSD ortho imagery rectified to within +/- 6

meters to true ground; and, 2 meter GSD ortho imagery rectified

to within +/- 10 meters to true ground. The tiling format of

NAIP imagery is based on a 3.75' x 3.75' quarter quadrangle

with a 300 meter buffer on all four sides. NAIP quarter quads

are formatted to the UTM coordinate system using NAD83. NAIP

imagery may contain as much as 10% cloud cover per tile.

Original contact information:

Contact Org: Aerial Photography Field Office (APFO)

Phone: 801-844-2922



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 GSD product

provides an ortho image base for Common Land Unit boundaries and

other data sets. The 1 meter NAIP imagery is generally acquired

in projects covering full states in cooperation with state

government and other federal agencies who use the imagery for a

variety of purposes including land use planning and natural

resource assessment. With an annual cycle, NAIP is also used

for disaster response often providing the most current pre-event

imagery. While suitable for a variety of uses the 2 meter

GSD NAIP imagery is primarily intended to assess crop condition

and compliance to USDA farm program conditions. The 2

meter imagery is generally acquired only for agricultural areas

within state projects.




Theme Keywords

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

Spatial Keywords

Thesaurus Keyword
Geographic Names Information System 3607501
Geographic Names Information System 51810
Geographic Names Information System NORTH VIRGINIA BEACH
Geographic Names Information System NORTH VIRGINIA BEACH, SW
Geographic Names Information System VA
Geographic Names Information System VA810
Geographic Names Information System Virginia Beach
Geographic Names Information System VIRGINIA BEACH CO VA FSA

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:


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: 665837
Date Effective From: 2012-10-29
Date Effective To:
Contact (Organization): NOAA Office for Coastal Management (NOAA/OCM)
Address: 2234 South Hobson Ave
Charleston, SC 29405-2413
Email Address:
Phone: (843) 740-1202


CC ID: 665839
Date Effective From: 2012-10-29
Date Effective To:
Contact (Organization): NOAA Office for Coastal Management (NOAA/OCM)
Address: 2234 South Hobson Ave
Charleston, SC 29405-2413
Email Address:
Phone: (843) 740-1202

Metadata Contact

CC ID: 665840
Date Effective From: 2012-10-29
Date Effective To:
Contact (Organization): NOAA Office for Coastal Management (NOAA/OCM)
Address: 2234 South Hobson Ave
Charleston, SC 29405-2413
Email Address:
Phone: (843) 740-1202

Point of Contact

CC ID: 665838
Date Effective From: 2012-10-29
Date Effective To:
Contact (Organization): NOAA Office for Coastal Management (NOAA/OCM)
Address: 2234 South Hobson Ave
Charleston, SC 29405-2413
Email Address:
Phone: (843) 740-1202


Currentness Reference: Ground Condition

Extent Group 1

Extent Group 1 / Geographic Area 1

CC ID: 665843
W° Bound: -78.971
E° Bound: -75.052
N° Bound: 39.372
S° Bound: 36.441

Extent Group 1 / Time Frame 1

CC ID: 665842
Time Frame Type: Discrete
Start: 2012-06-03

Spatial Information

Spatial Representation

Representations Used

Grid: Yes

Grid Representation 1

CC ID: 665829
Dimension Count: 2
Cell Geometry: Point
Transformation Parameters Available?: No

Axis Dimension 1

Dimension Type: Row
Size: 1

Axis Dimension 2

Dimension Type: Column
Size: 1

Access Information

Security Class: Unclassified
Data Access Constraints:

There are no limitations for access.

Data Use Constraints:

Imagery may be replaced to address defects found in a

small number of products through quality assurance

processes. Imagery containing defects that require

the acquisition of new imagery, such as excessive

cloud cover, specular reflectance, etc., will not be

replaced within a NAIP project year.

Distribution Information

Distribution 1

CC ID: 665844
Download URL:

Downloadable Data

File Type (Deprecated): Erdas Imagine (.img) and TIFF / BigTIFF / GeoTIFF (.tif)
Distribution Format: IMG - ERDAS Imagine

Distribution 2

CC ID: 739934
Download URL:
File Name: Customized Download

Create custom data files by choosing area, map projection, file format, etc.

Distribution 3

CC ID: 739935
Download URL:
File Name: Bulk Download

Simple download of data files.



CC ID: 739937
URL Type:
Online Resource

Activity Log

Activity Log 1

CC ID: 665862
Activity Date/Time: 2017-06-01

Date that the source FGDC record was last modified.

Activity Log 2

CC ID: 665861
Activity Date/Time: 2017-11-14

Converted from Content Standard for Digital Geospatial Metadata (version FGDC-STD-001-1998) using '' script. Contact Tyler Christensen (NOS) for details.

Activity Log 3

CC ID: 718058
Activity Date/Time: 2018-02-08

Partial upload of Positional Accuracy fields only.

Activity Log 4

CC ID: 739936
Activity Date/Time: 2018-03-13

Partial upload to move data access links to Distribution Info.

Technical Environment



Data Quality

Horizontal Positional Accuracy:

FSA Digital Orthophoto Specs.

Completeness Report:


Conceptual Consistency:

NAIP 3.75 minute tile file names are based

on the USGS quadrangle naming convention.




CC ID: 665826
Contact Name: USDA-FSA-APFO Aerial Photography Field Office
Publish Date: 2012-10-29
Extent Type: Discrete
Extent Start Date/Time: 2012-06-03
Source Contribution:

Digital Georectified Image. | Source Geospatial Form: remote-sensing image | Type of Source Media: UnKnown

Process Steps

Process Step 1

CC ID: 665827

Flight planning was performed in IGIPlan from IGI over a

buffered boundary covering DOQQ extents provided by the USDA.

A 500m reduced resolution NED DEM file was used to determine

ground heights. A targeted flight altitude of approximately

30,000 feet above ground level was used. A minimum forward

overlap of 60+ACU- and minimum side overlap of 30+ACU- were used.

No ground elevation in the project area resulted in source

pixel dimensions greater than 1.05m or less than 0.5m. Cessna

Conquest aircraft were used for acquisition. Multiple

Intergraph Digital Mapping Camera (DMC) systems where utilized

in the data capture. The DMC is a digital frame camera that

produces a central perspective image with a nominal

focal length of 120mm projecting an image on a virtual CCD

measuring 13,824 by 7,680 pixels. The pixels are 12um by 12um.

Images from four panchromatic cameras modules, each with a

120mm lens projecting an image on a 7,168 by 4,096 CCD,

are assembled to create the virtual frame. Images captured

simultaneously from four 3,072 by 2,048 pixel multispectral

(MS) cameras with 30mm lenses produce red, green, blue and

near infrared images. These MS images are matched to the Pan

virtual image using the Post Processing Software from

Intergraph. All DMC systems used for capture have been

calibrated by the manufacturer. The calibration includes

measuring the radiometric and geometric properties of each

camera. These data are used in the Post Processing Software

to eliminate the radiometric and geometric distortion. The raw

captured pixel resolution of the panchromatic virtual frame

ranges from 0.60m to 1.04m across the project area depending

on terrain height. Each pixel is assigned a 12 bit digital

number (DN) by the analog to digital conversion performed after

each exposure. Each pixel is resampled during

orthorectification to an output resolution of 1m at a bit depth

of 8 for each image band. Four bands of data were captured for

each image+ADs- Blue: 400-580 nm, Green: 500-650nm, Red: 590-675nm

and Near infrared: 675-850 nm. The final product may only

include the RGB data. All aerial imagery was collected with

associated GPS data. When possible most imagery will also

include IMU data collection. GPS/IMU data were captured with

either an Applanix POS 510 system or IGI AEROControl. The

GPS data was utilized to control the aerial triangulation

process. All imagery was processed through an aerial

triangulation in which the airborne GPS data was constrained to

expected limits. Analysis was performed to assure that all

image frames fit within a strip and between strips by

evaluating the image and airborne GPS residuals. 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.

For each project area the latest NED was downloaded from the

USGS National Map Seamless Server website in late Spring

2012. Thirty Meter NED was used in all cases, and preferred

over the available ten meter spacing to minimize image smearing

and distortions that are exacerbated by a finer, but not more

accurate DEM. A visual inspection of the NED using color cycled

classification by elevation and a shaded relief was performed

to check for gaps, corruption and gross errors. When available

the NED was compared to known higher quality elevation sources

to detect flaws. Between 20-60 construction points per frame

derived from conjugant image measurements performed during

aerial triangulation were projected to the NED. 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 spe

Process Date/Time: 2012-10-29 00:00:00

Catalog Details

Catalog Item ID: 49500
GUID: gov.noaa.nmfs.inport:49500
Metadata Record Created By: Anne Ball
Metadata Record Created: 2017-11-15 15:15+0000
Metadata Record Last Modified By: SysAdmin InPortAdmin
Metadata Record Last Modified: 2023-10-17 16:12+0000
Metadata Record Published: 2018-03-13
Owner Org: OCMP
Metadata Publication Status: Published Externally
Do Not Publish?: N
Metadata Last Review Date: 2018-03-13
Metadata Review Frequency: 1 Year
Metadata Next Review Date: 2019-03-13