NAIP_1M_CLR_2009

Metadata:

• Identification_Information
• Data_Quality_Information
• Spatial_Data_Organization_Information
• Spatial_Reference_Information
• Entity_and_Attribute_Information
• Distribution_Information
• Metadata_Reference_Information

Identification_Information:

Citation:

Citation_Information:

Originator:

VT Center for Geographic Information (modified version of imagery)

Publication_Date: 20090430

Publication_Time: unknown

Title: NAIP_1M_CLR_2009

Edition: 2009A

Geospatial_Data_Presentation_Form: raster digital data

Series_Information:

Series_Name: NAIP imagery (2009) - statewide

Issue_Identification: 2009A

Publication_Information:

Publication_Place: Waterbury VT 05676

Publisher: VT Center for Geographic Information

Other_Citation_Details: Tile Structure - QQUAD

Online_Linkage:

<http://www.vcgi.org/dataware/default.cfm?datasetname=NAIP_1M_CLR_2009>

Citation:

Citation_Information:

Originator: USDA-FSA-APFO Aerial Photography Field Office

Publication_Date: 20091127

Title: NAIP Digital Ortho Photo Image

Geospatial_Data_Presentation_Form: remote-sensing image

Publication_Information:

Publication_Place: Salt Lake City, Utah

Publisher: USDA-FSA-APFO Aerial Photography Field Office

Description:

Abstract:

The NAIP_1M_CLR_2009 dataset is a 1:40000 scale (1 meter) truecolor (3 band) NAIP imagery product acquired during the summer of 2009 (July-August). VCGI reprojected (VT State Plane Meters) and cropped (QQUAD) the original NAIP imagery to ensure compliance with VCGI Image Library standards.
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.

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 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.

Time_Period_of_Content:

Time_Period_Information:

Range_of_Dates/Times:

Beginning_Date: 200907

Ending_Date: 200908

Currentness_Reference: Ground Condition

Status:

Progress: Complete

Maintenance_and_Update_Frequency: Irregular

Spatial_Domain:

Bounding_Coordinates:

West_Bounding_Coordinate: -73.454162

East_Bounding_Coordinate: -71.465281

North_Bounding_Coordinate: 45.018361

South_Bounding_Coordinate: 42.722789

Keywords:

Theme:

Theme_Keyword_Thesaurus: ISO 19115 Topic Category

Theme_Keyword: imageryBaseMapsEarthCover

Theme:

Theme_Keyword_Thesaurus: None

Theme_Keyword: farming

Theme_Keyword: Digital Ortho rectified Image

Theme_Keyword: Ortho Rectification

Theme_Keyword: Quarter Quadrangle Centered

Theme_Keyword: NAIP

Theme_Keyword: Aerial Compliance

Theme_Keyword: Compliance

Place:

Place_Keyword_Thesaurus: Geographic Names Information System

Place_Keyword: VT

Access_Constraints:

VCGI and the State of VT make no representations of any kind, including but not limited to the warranties of merchantability or fitness for a particular use, nor are any such warranties to be implied with respect to the data.

Use_Constraints:

For all products, services, Internet Website, and data, excepting digital or hardcopy orthophotography collected through the VT Tax Department’s Mapping Program, the direct, non-value added, reproduction of State of Vermont or VCGI’s products, services, Website, or data with intent to sell is prohibited without the written consent of VCGI. For all digital or hardcopy orthophotography collected through the VT Tax Department’s Mapping Program, copying, reprinting, duplicating, selling or attempting to sell is prohibited. Vermont Statute 32 V.S.A. § 3409 permits a fine, not to exceed $1,000.00, for any person violating this prohibition.

Point_of_Contact:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization: VT Center for Geographic Information

Contact_Address:

Address_Type: Mailing and Physical Address

Address: 58 South Main Street, Suite 2

City: Waterbury

State_or_Province: VT

Postal_Code: 05676

Country: USA

Contact_Voice_Telephone: 802/882-3000

Contact_TDD/TTY_Telephone: None

Contact_Facsimile_Telephone: 802/882-3001

Contact_Electronic_Mail_Address: info@vcgi.org

Hours_of_Service: 9am - 5pm, M-F

Data_Set_Credit:

USDA-FSA-APFO Aerial Photography Field Office, VCGI, UVM Spatial Analysis Lab (SAL), and other contributors to the VT NAIP 2009 project.

Security_Information:

Security_Classification_System: N/A

Security_Classification: Unclassified

Security_Handling_Description: No Security Considerations

Native_Data_Set_Environment: Unknown

Data_Quality_Information:

Logical_Consistency_Report:

NAIP 3.75 minute tile file names are based on the USGS quadrangle naming convention.

Completeness_Report: None

Positional_Accuracy:

Horizontal_Positional_Accuracy:

Horizontal_Positional_Accuracy_Report: FSA Digital Orthophoto Specs.

Lineage:

Source_Information:

Source_Citation:

Citation_Information:

Originator: USDA-FSA-APFO Aerial Photography Field Office

Publication_Date: 20091127

Title: NAIP 2009 Vermont

Geospatial_Data_Presentation_Form: remote-sensing image

Type_of_Source_Media: UnKnown

Source_Time_Period_of_Content:

Time_Period_Information:

Single_Date/Time:

Calendar_Date: 20090815

Source_Currentness_Reference: Aerial Photography Date for aerial photo source.

Source_Citation_Abbreviation: Georectifed Image

Source_Contribution: Digital Georectifed Image.

Process_Step:

Process_Description:

Aerial photography was acquired using a frame based digital camera (UltraCamD (UCD), UltraCamX (UCX), or DMC), therefore no scanning conversion from film to digital was needed. Geometric and radiometric calibration for each one of the camera heads is determined in the manufacturing laboratory. This step is also known as geometric and radiometric calibration of a single camera head and done when the sensor is being manufactured. The 4 multispectral heads collect 4 separated bands: Red, Green, Blue and Near Infrared wavelength. Both the UltraCam and DMC sensors collect 12bit data. The UCD sensor CCD pixel size is 9 micron with a footprint of 7500 pixels in the long track, and 11500 pixels in the cross track. The UCX sensor CCD pixel size is 7.2 micron with a footprint of 9420 pixels in the long track, and 14430 pixels in the cross track. The DMC sensor CCD pixel size is 12 micron with a footprint of 7680 pixels in the long track, and 13824 pixels in the cross track. Twin Engine Navajo, Turbo Commander and Conquest aircrafts were used, flying at average flight height of 6,700 to 8,600 meters above ground, allowing image acquisition of 0.67 to 0.86 meters Ground Sample Distance. An INS - Inertial Navigation System, with AGPS (Airborne GPS) and IMU (Inertial Measurement Unit) was utilized for all aerial missions. The INS allows for accurate photo-center registration and image orientation. For inspection and verification of accuracy of the exterior orientation computed with the Inertial Navigation System, stereo compilation was performed for every flight mission and its result compared against higher accuracy source data. If a test of positional accuracy failed (> 5 meters) a full analytical triangulation is processed for that mission, assuring accurate horizontal positioning. USGS seamless NED data was used as a surface for ortho-rectification. Surdex used proprietary software to rectify the scanned images. Rectification was done using Lagrange resampling. Color balancing was then performed on each exposure. Surdex software tonally balanced each exposure to alleviate the effects of hotspots, side-to-side shading within an exposure, and tonal differences between flightlines due to dissimilar conditions at the time of capture. Each exposure was then balanced to predefined target values used throughout the project, creating a dataset consistent and uniform in radiometry. Seams between exposures were determined by Surdex software to use the best exposure based on proximity to nadir and ground angle to the camera. Delivery tiles were then extracted from Surdex seamless imagery database, named to meet the DOQQ and/or DOQ naming convention, and formatted as defined in the task order. Horizontal accuracy was once again tested for 6-meter absolute accuracy. If failed, then the entire flight mission would be revised, a new aerotriangulation performed and new set of doqqs produced. Quality control was performed on a sampling of each deliverable to ensure no artifacts or anomalies were present in the imagery.

Process_Date: 20091127

Process_Step:

Process_Description:

The GeoTIFFs were generated by reprojecting the original UTM files via ERDAS IMAGINE. The work was completed b Jarlath O'Neil-Dunne at the UVM Spatial Analysis Lab (SAL). The images were then cropped to the quarter quad "envelope" by VCGI to eliminate nodata areas.

Process_Date: 20100301

Process_Step:

Process_Description:

VCGI generated JPEG2000 compressed (20x) files from the reprojected GeoTIFFs.

Process_Date: 20100315

Process_Step:

Process_Description: VCGI posted data to VCGI Image Library for download.

Process_Date: 20100405

Cloud_Cover: 5%

Spatial_Data_Organization_Information:

Indirect_Spatial_Reference: Raster

Direct_Spatial_Reference_Method: Raster

Raster_Object_Information:

Raster_Object_Type: Pixel

Row_Count: 1

Column_Count: 1

Spatial_Reference_Information:

Horizontal_Coordinate_System_Definition:

Planar:

Grid_Coordinate_System:

Grid_Coordinate_System_Name: State Plane Coordinate System

State_Plane_Coordinate_System:

SPCS_Zone_Identifier: 4400

Transverse_Mercator:

Scale_Factor_at_Central_Meridian: 0.999964

Longitude_of_Central_Meridian: -72.500000

False_Easting: 500000.000000

False_Northing: 0.000000

Planar_Coordinate_Information:

Planar_Coordinate_Encoding_Method: coordinate pair

Coordinate_Representation:

Abscissa_Resolution: 0.001

Ordinate_Resolution: 0.001

Planar_Distance_Units: Meters

Geodetic_Model:

Horizontal_Datum_Name: North American Datum of 1983

Ellipsoid_Name: Geodetic Reference System 80

Semi-major_Axis: 6378137

Denominator_of_Flattening_Ratio: 1 / 298.25722210

Entity_and_Attribute_Information:

Overview_Description:

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

Entity_and_Attribute_Detail_Citation: None

Distribution_Information:

Distributor:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization: VT Center for Geographic Information

Contact_Address:

Address_Type: Mailing and Physical Address

Address: 58 South Main Street, Suite 2

City: Waterbury

State_or_Province: VT

Postal_Code: 05676

Country: USA

Contact_Voice_Telephone: 802/882-3000

Contact_TDD/TTY_Telephone: None

Contact_Facsimile_Telephone: 802/882-3001

Contact_Electronic_Mail_Address: info@vcgi.org

Hours_of_Service: 9am - 5pm, M-F

Resource_Description: NAIP_1M_CLR_2009

Distribution_Liability:

VCGI and the State of Vermont make no representations of any kind, including but not limited to the warranties of merchantability or fitness for a particular use, nor are any such warranties to be implied with respect to the data.

Standard_Order_Process:

Digital_Form:

Digital_Transfer_Information:

Format_Name: JPEG2000 and GeoTIFF

Format_Specification: JPEG2000 (20x compression) and GeoTIFF

Format_Information_Content: geospatial data

File_Decompression_Technique: Image viewer

Digital_Transfer_Option:

Online_Option:

Computer_Contact_Information:

Network_Address:

Network_Resource_Name:

<http://www.vcgi.org/dataware/default.cfm?datasetname=NAIP_1M_CLR_2009>

Access_Instructions:

Download compressed (JPEG2000) from web site. Uncompressed GeoTIFF available on offline media.

Offline_Option:

Offline_Media: USB flash drive

Offline_Option:

Offline_Media: USB drive

Fees:

No charge when downloading compressed (JPEG200) from the internet, and when no custom processing is required. Charge for offline media options (uncompressed GeoTIFF).

Ordering_Instructions:

Download from web site or mail-fax a copy of the VCGI 'Data Request Form' which is available from VCGIs web site <http://www.vcgi.org/dataware/order_forms>

Turnaround: About 5 days.

Custom_Order_Process:

Mail or Fax a copy of the VCGI 'Data Request Form' which is available from <http://www.vcgi.org/dataware/order_forms>

Technical_Prerequisites: ESRI Arc/Info, ArcView, or ArcExplorer software.

Available_Time_Period:

Time_Period_Information:

Single_Date/Time:

Calendar_Date: 20100405

Time_of_Day: Unknown

Metadata_Reference_Information:

Metadata_Date: 20100405

Metadata_Contact:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization: VT Center for Geographic Information

Contact_Person: GIS Database Administrator

Contact_Address:

Address_Type: Mailing and Physical Address

Address: 58 South Main Street, Suite 2

City: Waterbury

State_or_Province: VT

Postal_Code: 05676

Country: USA

Contact_Voice_Telephone: 802/882-3000

Contact_TDD/TTY_Telephone: None

Contact_Facsimile_Telephone: 802/882-3001

Metadata_Standard_Name: FGDC Content Standards for Digital Metadata

Metadata_Standard_Version: FGDC-STD-001-1998

Metadata_Time_Convention: Local time

Metadata_Access_Constraints: None

Metadata_Use_Constraints: None

Metadata_Security_Information:

Metadata_Security_Classification_System: N/A

Metadata_Security_Classification: Unclassified

Metadata_Security_Handling_Description: No security considerations