Orthorectified Photomosaic Metadata

Metadata also available as - [Questions & Answers] - [Text] - [Adobe Acrobat pdf file]

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: NatureServe

Publication_Date: 20071230

Title:

Saugus Ironworks National Historical Site Vegetation Mapping Project - True Color Orthorectified Image

Edition: 200504

Geospatial_Data_Presentation_Form: remote-sensing image

Online_Linkage: <http://biology.usgs.gov/npsveg/ftp/vegmapping/sair/sairortho.zip>

Description:

Abstract:

Orthorectified true color image of Saugus Ironworks National Historical Site. Sanborn Colorado L.L.C. of Colorado Springs, CO, flew the photography in April 2005. The scale of the photography is 1:5,000.

Purpose:

The image was adopted for use by Saugus Ironworks NHS as a GIS component and for digital mapping.

Language_of_Dataset: en

Time_Period_of_Content:

Time_Period_Information:

Single_Date/Time:

Calendar_Date: 200504

Currentness_Reference: ground condition

Status:

Progress: Complete

Maintenance_and_Update_Frequency: Unknown

Spatial_Domain:

Bounding_Coordinates:

West_Bounding_Coordinate: -71.051468

East_Bounding_Coordinate: -71.000245

North_Bounding_Coordinate: 42.476515

South_Bounding_Coordinate: 42.438585

Local_Bounding_Coordinates:

Left_Bounding_Coordinate: 331370.152088

Right_Bounding_Coordinate: 335486.152088

Top_Bounding_Coordinate: 4704626.109013

Bottom_Bounding_Coordinate: 4700510.109013

Description_of_Geographic_Extent:

Saugus Iron Works National Historic Site and environs (Saugus, MA 01906)

Keywords:

Theme:

Theme_Keyword_Thesaurus: none

Theme_Keyword: Orthorectified

Theme_Keyword: True Color

Theme_Keyword: mosaic

Theme_Keyword: aerial photo

Theme_Keyword: leaf-off

Place:

Place_Keyword_Thesaurus: none

Place_Keyword: Massachusetts

Place_Keyword: National Historical Site

Place_Keyword: National Park

Place_Keyword: Saugus Ironworks

Temporal:

Temporal_Keyword_Thesaurus: none

Temporal_Keyword: 200504

Temporal_Keyword: April

Temporal_Keyword: spring

Access_Constraints: none

Use_Constraints: none

Browse_Graphic:

Browse_Graphic_File_Name: <http://biology.usgs.gov/npsveg/sair/images/sairortho.pdf>

Browse_Graphic_File_Description: Orthophoto; low resolution for web browsing.

Browse_Graphic_File_Type: PDF

Point_of_Contact:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization: NatureServe

Contact_Person: Lesley Sneddon

Contact_Position: Senior Regional Ecologist

Contact_Address:

Address_Type: mailing and physical address

Address: 11 Avenue de Lafaytte 5th Floor

City: Boston

State_or_Province: MA

Postal_Code: 02111

Country: USA

Contact_Voice_Telephone: 617.542.1908 x 245

Contact_Electronic_Mail_Address: lesley_sneddon@natureserve.org

Hours_of_Service: 9-5

Data_Set_Credit: MASS GIS, Jon Hak

Native_Data_Set_Environment:

Microsoft Windows XP Version 5.1 (Build 2600) Service Pack 2; ESRI ArcCatalog 9.1.0.780

Native_Dataset_Format: Raster Dataset

Data_Quality_Information:

Logical_Consistency_Report: Raster Data

Completeness_Report: Saugus Ironworks NHS and surrounding area

Positional_Accuracy:

Horizontal_Positional_Accuracy:

Horizontal_Positional_Accuracy_Report:

Image horizontal accuracy is +/-3 meters at the 95% confidence level at the nominal scale of 1:5,000. The ground control used to support the mapping was collected by photographic identification of strategic points. The ground control coordinates were collected via GPS ground survey techniques. Aerial Triangulation was performed on softcopy workstations using Intergraph ISAT software for photo measurement and matching. The final bundle adjustment was performed using BINGO 5.2 software.MassGIS quality assurance included rigorous independent checks of the spatial accuracy using other datasets of significantly higher accuracy, and field work that included the capture of highly accurate GPS points that were compared to the same locations appearing on the deliverables. MassGIS also assessed the visual quality and appearance of the images.

Lineage:

Source_Information:

Source_Citation:

Citation_Information:

Originator: MASS GIS-<http://www.mass.gov/mgis/new-oq05delivery.htm>

Publication_Date: 20070223

Title: 2005 Ortho Imagery "Contrast Stretched" MrSID and JPEG 2000

Geospatial_Data_Presentation_Form: remote-sensing image

Source_Scale_Denominator: 5000

Type_of_Source_Media: true color aerial photos

Source_Time_Period_of_Content:

Time_Period_Information:

Single_Date/Time:

Calendar_Date: 200504

Source_Currentness_Reference: ground condition

Source_Citation_Abbreviation: photos

Source_Contribution: Aerial view of Saugus Ironworks NHS

Process_Step:

Process_Description:

Sanborn Colorado L.L.C. of Colorado Springs, CO, performed all work for this project. The source imagery was acquired with a Vexcel Ultracam digital camera at a flying height of 5,070 meters above mean terrain and an approximate pixel resolution of 45 cm. Forward overlap was approximately 60%, except 80% in areas with tall structures (downtown Boston, Worcester, and Springfield), in order to reduce building lean, with sidelap of 33%. The entire state was covered by about 5500 image frames, captured over seven days from April 9 through April 17, 2005.The ground control used to support the mapping was collected by photographic identification of strategic points. The ground control coordinates were collected via GPS ground survey techniques. Aerial Triangulation was performed on softcopy workstations using Intergraph ISAT software for photo measurement and matching. The final bundle adjustment was performed using BINGO 5.2 software A new digital elevation model was stereo compiled for the entire State from the newly acquired 2005 imagery. The DTM includes mass points, soft breaklines and hard breaklines. The images were ortho-rectified using METRO, Sanborn's proprietary software. Bridges were modeled in 3-D using standard photogrammetric stereo-compilation techniques on softcopy workstations. Sanborn's Metro process rectifies the bridges using the 3-Dimensional model using similar methodologies for correcting the positional accuracy of other ground features. The bridges were uniquely coded and later removed from the final deliverable DTM file.

Imagery ws georeferenced to Massachusetts State Plane Mainland (Lambert Conformal Conic Projection) NAD83 coordinate system, denominated in meters and ocnverted to NAD 83 UTM Zone 19 for the orthomosaic.

Color balancing was performed using METRO_NICE software. The resulting images were mosaicked into one seamless database of imagery and extracted to match the existing MassGIS Orthophoto Index Grid tile layout (each image tile covers 4,000 × 4,000 meters on the ground.). Images were quality-controlled by Sanborn using Adobe PhotoShop software. Final deliverables included 1/2-meter pixel resolution GeoTiff images with supplementary tfw files and metadata.

MassGIS quality assurance included rigorous independent checks of the spatial accuracy using other datasets of significantly higher accuracy, and field work that included the capture of highly accurate GPS points that were compared to the same locations appearing on the deliverables. MassGIS also assessed the visual quality and appearance of the images.

Process_Date: 200504

Process_Contact:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization: Office of Geographic and Environmental Information (MassGIS)

Contact_Address:

Address_Type: mailing and physical address

Address: 251 Causeway St., Suite 500

City: Boston, MA

State_or_Province: MA

Postal_Code: 02114

Contact_Voice_Telephone: (617) 626-1238

Spatial_Data_Organization_Information:

Direct_Spatial_Reference_Method: Raster

Raster_Object_Information:

Raster_Object_Type: Pixel

Row_Count: 8232

Column_Count: 8232

Vertical_Count: 1

Raster_Band_Count: 3

Bits_Per_Pixel: 8

Image_Colormap: FALSE

Compression_Type: Wavelet

Raster_Display_Type: pixel codes

Image_Format: MrSID

Raster_Origin: Upper Left

Pyramid_Layers: TRUE

Cell_Size_X_Direction: 0.500000

Cell_Size_Y_Direction: 0.500000

Spatial_Reference_Information:

Horizontal_Coordinate_System_Definition:

Planar:

Planar_Coordinate_Information:

Planar_Coordinate_Encoding_Method: row and column

Coordinate_Representation:

Abscissa_Resolution: 0.500000

Ordinate_Resolution: 0.500000

Planar_Distance_Units: meters

Grid_Coordinate_System:

Grid_Coordinate_System_Name: Universal Transverse Mercator

Universal_Transverse_Mercator:

UTM_Zone_Number: 19

Transverse_Mercator:

Scale_Factor_at_Central_Meridian: 0.999600

Longitude_of_Central_Meridian: -69.000000

Latitude_of_Projection_Origin: 0.000000

False_Easting: 500000.000000

False_Northing: 0.000000

Geodetic_Model:

Horizontal_Datum_Name: North American Datum of 1983

Ellipsoid_Name: Geodetic Reference System 80

Semi-major_Axis: 6378137.000000

Denominator_of_Flattening_Ratio: 298.257222

Coordinate_System_Name:

Geographic_Coordinate_System_Name: GCS_North_American_1983

Projected_Coordinate_System_Name: NAD_1983_UTM_Zone_19N

Entity_and_Attribute_Information:

Overview_Description:

Entity_and_Attribute_Overview:

Image type is 4-band (RGBN) natural color (Red, Green, Blue) and Near infrared in 8 bits (values ranging 0-255) per band format.

Entity_and_Attribute_Detail_Citation: none

Distribution_Information:

Distributor:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization: USGS/CSS/Core Science Analytics and Synthesis

Contact_Person: USGS-NPS Vegetation Mapping Program Coordinator

Contact_Address:

Address_Type: mailing and physical address

Address: Denver Federal Center, Building 810, Room 8000, MS 302

City: Denver

State_or_Province: Colorado

Postal_Code: 80225

Contact_Voice_Telephone: (303) 202-4220

Contact_Facsimile_Telephone: 303-202-4219

Contact_Electronic_Mail_Address: gs-b-npsveg@usgs.gov

Resource_Description:

Downloadable Data. Orthorectified 4 band true color image of Saugus Ironworks NHS. SAIR_TrueColor_Spring_2005.sid

Distribution_Liability:

The U.S. Geological Survey and the National Park Service shall not be held liable for improper or incorrect use of the data described and/or contained herein. These data and related graphics (if available) are not legal documents and are not intended to be used as such.

The information contained in these data is dynamic and may change over time. The data are not better than the original sources from which they were derived. It is the responsibility of the data user to use the data appropriately and consistent within the limitations of geospatial data in general and these data in particular. Any related graphics (if available) are intended to aid the data user in acquiring relevant data; it is not approriate to use the related graphics as data.

The U.S. Geological Survey and the National Park Service gives no warranty, expressed or implied, as to the accuracy, reliability, or completeness of these data. It is strongly recommended that these data are directly acquired from an U.S. Geological Survey and National Park Service servers and not indirectly through other sources which may have changed the data in some way. Although these data have been processed successfully on a computer system at the U.S. Geological Survey, no warranty expressed or implied is made regarding the utility of the data on another system or for general or scientific purposes, nor shall the act of distribution constitute any such warranty. This disclaimer applies both to individual use of the data and aggregate use with other data. It is also strongly recommended that careful attention be paid to the contents of the metadata file associated with these data. Mention of trade names or commercial products in this metadata report does not constitute endorsement or recommendation for use by the U. S. Department of the Interior, U. S. Geological Survey and National Park Service.

Standard_Order_Process:

Digital_Form:

Digital_Transfer_Information:

Format_Name: HTML

Digital_Transfer_Option:

Online_Option:

Computer_Contact_Information:

Network_Address:

Network_Resource_Name: <http://biology.usgs.gov/npsveg/sair/index.html>

Access_Instructions: Internet Access

Fees: None

Metadata_Reference_Information:

Metadata_Date: 20080207

Metadata_Review_Date: 20100615

Metadata_Contact:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization: USGS/CSS/Core Science Analytics and Synthesis

Contact_Person: USGS-NPS Vegetation Mapping Program Coordinator

Contact_Address:

Address_Type: mailing and physical address

Address: Denver Federal Center, Building 810, Room 8000, MS 302

City: Denver

State_or_Province: Colorado

Postal_Code: 80225

Contact_Voice_Telephone: (303) 202-4220

Contact_Facsimile_Telephone: 303-202-4219

Contact_Electronic_Mail_Address: gs-b-npsveg@usgs.gov

Metadata_Standard_Name:

FGDC Biological Data Profile of the Content Standard for Digital Geospatial Metadata

Metadata_Standard_Version: FGDC-STD-001.1-1999

Metadata_Extensions:

Online_Linkage:

<http://www.nbii.gov/portal/server.pt/community/fgdc_metadata/255>