NAIP_1M_CLRIR_2014

Metadata also available as

Metadata:

Identification_Information:
Citation:
Citation_Information:
Originator: VT Center for Geographic Information
Publication_Date: 20150316
Publication_Time: unknown
Title: NAIP_1M_CLRIR_2014
Edition: 2014A
Geospatial_Data_Presentation_Form: raster digital data
Series_Information:
Series_Name: NAIP imagery (2014) - statewide
Issue_Identification: 2014A
Publication_Information:
Publication_Place: Waterbury VT 05676
Publisher: VT Center for Geographic Information
Other_Citation_Details: Tile Structure - QQUAD
Citation:
Citation_Information:
Originator: USDA-FSA-APFO Aerial Photography Field Office
Publication_Date: 20141114
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_CLRIR_2014 dataset is a (1 meter) truecolor and infrared (4 band) NAIP imagery product acquired during the summer of 2014 by the USDA-FSA-APFO NAIP program, then reprojected to VT State Plane Meters and cropped to the USGS quarter quad boundary by VCGI.
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 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.
Time_Period_of_Content:
Time_Period_Information:
Range_of_Dates/Times:
Beginning_Date: 20140710
Ending_Date: 20140909
Currentness_Reference: Ground Condition
Status:
Progress: Complete
Maintenance_and_Update_Frequency: Irregular
Spatial_Domain:
Bounding_Coordinates:
West_Bounding_Coordinate: -73.5
East_Bounding_Coordinate: -71.4375
North_Bounding_Coordinate: 45.0625
South_Bounding_Coordinate: 42.6875
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
Theme_Keyword: NAIP
Theme_Keyword: Aerial Compliance
Theme_Keyword: Compliance
Place:
Place_Keyword_Thesaurus: Geographic Names Information System
Place_Keyword: VT
Access_Constraints: There are no limitations for access.
Use_Constraints:
None. VCGI, State of VT, and the USDA-FSA-APFO Aerial Photography Field Office 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. The USDA-FSA Aerial Photography Field office asks to be credited in derived products.
Point_of_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: VT Center for Geographic Information
Contact_Address:
Address_Type: Mailing and Physical Address
Address: 1 National Life Dr, Dewey Building, 2nd Floor
City: Montpelier
State_or_Province: VT
Postal_Code: 05620-2001
Country: USA
Contact_Voice_Telephone: (802) 585-0820
Contact_TDD/TTY_Telephone: None
Contact_Facsimile_Telephone:
Contact_Electronic_Mail_Address: vcgi@vermont.gov
Hours_of_Service: 9am - 5pm, M-F
Data_Set_Credit: USDA-FSA Aerial Photography Field office, VCGI
Security_Information:
Security_Classification_System: N/A
Security_Classification: Unclassified
Security_Handling_Description: No Security Considerations
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:
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.
Lineage:
Source_Information:
Source_Citation:
Citation_Information:
Originator: USDA-FSA-APFO Aerial Photography Field Office
Publication_Date: 20141114
Title: NAIP 2014
Geospatial_Data_Presentation_Form: remote-sensing image
Type_of_Source_Media: UnKnown
Source_Time_Period_of_Content:
Time_Period_Information:
Range_of_Dates/Times:
Beginning_Date: 20140710
Ending_Date: 20140909
Source_Currentness_Reference: Aerial Photography Date for aerial photo source.
Source_Citation_Abbreviation: Georectifed Image
Source_Contribution: Digital Georectifed Image.
Process_Step:
Process_Description:
DOQQ Production Process Description
USDA FSA APFO NAIP Program 2014
State: Vermont


The imagery was collected using the following digital sensors:
Leica ADS80-SH81 (Serial Number 1318)
Leica ADS80-SH91 (Serial Number 1423)
with Flight and Sensor Control Management
System (FCMS) firmware 3.38.
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:
Pistons flying at 17,500 ft above mean terrain
(tail number: C402 N246MP) and
Turbines flying at 28,000 ft above mean terrain
(tail number: C441 N441CJ)
With these flying heights, there is a 23% sidelap,
giving the collected data nominal ground sampling distance
of 0.56 meters at 17,500 and 0.90 meters at 28,000.
Based-upon the CCD Array configuration present in
the ADS digital sensor, imagery for each flight
line is 12,000-pixels in width. Red, Green, Blue,
Near-Infrared and Panchromatic image bands were collected.


The ADS 80 has the following band specifications:
Pan 465-676
Red 604-664
Green 533-587
Blue 420-492
Near Infrared 833-920
all values are in nanometers


The ADS40 has the following band specifications:
Pan 465-680
Red 610-660
Green 535-585
Blue 430-490
Near Infrared 835-885
all values are in nanometers


Collected data was downloaded to portable hard drives and
shipped to the processing facility daily. Raw flight data
was extracted from external data drives using GPro software.
Airborne GPS / IMU data was post-processed using INYS,
PosPac and/or TerraPos software and reviewed to ensure
sufficient accuracy for project requirements.


Using Pictovera software, planar rectified images were
generated from the collected data for use in image quality
review. The planar rectified images were generated at five
meter resolution using a two standard deviation histogram
stretch. Factors considered during this review included but
were not limited to the presence of smoke and/or cloud
cover, contrails, light conditions, sun glint and any sensor
or hardware-related issues that potentially could result in
faulty data. When necessary, image strips identified as not
meeting image quality specifications were re-flown to obtain
suitable imagery.


Aero triangulation blocks were defined primarily by order of
acquisition and consisted of four to seventeen strips.
Image tie points providing the observations for the least
squares bundle adjustment were selected from the images
using an auto correlation algorithm. Photogrammetric control
points consisted of photo identifiable control points,
collected using GPS field survey techniques. The control
points were loaded in to a softcopy workstation and measured
in the acquired image strips. A least squares bundle
adjustment of image pass points, control points and the
ABGPS was performed to develop an aero triangulation
solution for each block using Pictovera software.


Upon final bundle adjustment, the triangulated strips were
ortho-rectified to the digital elevation model (DEM) The most
recent USGS 10 meter DEMs were used in the rectification
process.


Positional accuracy was reviewed in the rectified imagery by
visually verifying the horizontal positioning of the known
photo-identifiable survey locations using ArcGIS software.


The red, green, blue, and infrared bands were combined to
generate a final ortho-rectified image strip. The ADS sensor
collects twelve bit image data which requires radiometric
adjustment for output in standard eight bit image channels.
The ortho-rectified image strips were produced with the
full 12 bit data range, allowing radiometric adjustment
to 8 bit range to be performed on a strip by strip basis
during the final mosaicking steps.


The 12 bit data range was adjusted for display in standard
eight bit image channels by defining a piecewise histogram
stretch using OrthoVista Radiometrix software. A constant
stretch was defined for each image collection period, and
then strip by strip adjustments were made as needed to
account for changes in sun angle and azimuth during the
collection period. Strip adjustments were also made to
match the strips histograms as closely as possible to
APFO specified histogram metrics and color balance
requirements. Automated balancing algorithms were applied
to account for bi- directional reflectance as a final step
before the conversion to 8 bit data range. The imagery was
mosaicked using manual seam line generation in Intergraph
GeoMedia OrthoPro.
Process_Date: 20141114
Process_Step:
Process_Description:
GeoTIFFs were generated by reprojecting the original UTM files to VT State Plane Coordinate System (NAD83) using Global Mapper 14 and then cropping to the quarter quads to eliminate nodata areas.
Process_Date: 20150219
Process_Time: Unknown
Process_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: Steve Sharp
Contact_Organization: VCGI
Process_Step:
Process_Description:
VCGI generated JPEG2000 compressed files from the reprojected GeoTIFFs (using Global Mapper 14).
Process_Date: 20150219
Process_Time: Unknown
Process_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: Steve Sharp
Contact_Organization: VCGI
Process_Step:
Process_Description: VCGI posted data to VCGI Image Library for download.
Process_Date: 20150316
Process_Time: Unknown
Process_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: Ivan Brown
Contact_Organization: VCGI
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: 1 National Life Dr, Dewey Building, 2nd Floor
City: Montpelier
State_or_Province: VT
Postal_Code: 05620-2001
Country: USA
Contact_Voice_Telephone: (802) 585-0820
Contact_TDD/TTY_Telephone: None
Contact_Facsimile_Telephone:
Contact_Electronic_Mail_Address: vcgi@vermont.gov
Hours_of_Service: 9am - 5pm, M-F
Resource_Description: VIL_datasetname
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 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:
https://maps.vcgi.vermont.gov/gisdata/vcgi/imagery/NAIP/1M/CLRIR/2014/COMP/
Access_Instructions:
Download compressed (JPEG2000) from web site. Uncompressed GeoTIFF available on offline media.
Offline_Option:
Offline_Media: USB drive
Fees:
No charge when downloading from the internet, and when no custom processing is required.
Ordering_Instructions: Send an email describing data request to vcgi@vermont.gov
Turnaround: About 5 days.
Custom_Order_Process: Send an email describing data request to vcgi@vermont.gov
Technical_Prerequisites: GIS Software
Available_Time_Period:
Time_Period_Information:
Single_Date/Time:
Calendar_Date: 20150316
Time_of_Day: Unknown
Metadata_Reference_Information:
Metadata_Date: 20150316
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: 1 National Life Dr, Dewey Building, 2nd Floor
City: Montpelier
State_or_Province: VT
Postal_Code: 05620-2001
Country: USA
Contact_Voice_Telephone: (802) 585-0820
Contact_TDD/TTY_Telephone: None
Contact_Facsimile_Telephone:
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
Generated by mp version 2.9.22 on Thu Aug 25 20:52:21 2022