Orthorectified Photomosaic FAQ Metadata
Frequently-anticipated questions:
- Title:
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Pipe Spring National Monument Vegetation Mapping Project - Color Imagery Orthophotos
- Abstract:
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This imagery was obtained from the Arizona State Land Department (www.land.state.az.us). The NCPN obtained both the uncompressed as well as compressed versions of the imagery. A index file was sent with the data, the following blurb is an excerpt from its' metadata file because if does indicate, remotely, the origins of the imagery data:
"This data set is an ESRI shapefile representing the index for the data set entitled "AZ 1-meter Digital Orthophotos" flown between June 2005 and March 2006 by the MDA Corporation on behalf of the USGS. Not all counties were flown - neither Cochise county and Maricopa county are part of this data set. This file, when used in conjunction with the images, allows the user to determine the photo date (thus ground date) of the particular area that is being viewed. The user is cautioned that some areas of the state were flown more than once and therefore, in some instances, the exact photo date is uncertain. A varying amount of overedge (between 50 and 330 meters) also exists between photos, thus dates along photos that share a common edge may also be uncertain. Also, while most of the orthophotos were created from a single source image for each DOQQ, some were produced from multiple images in order to minimize perspective related image smearing problems. For users needing to know the exact date of a particular orthophoto it is suggested that they contact the original source of the orthophotos."
- How should this data set be cited?
Unknown, Unknown, Color Imagery for Pipe Spring National Monument, Arizona (3611211NW.tif).
Online Links:
- What geographic area does the data set cover?
- West_Bounding_Coordinate: -112.755608
- East_Bounding_Coordinate: -112.682710
- North_Bounding_Coordinate: 36.878651
- South_Bounding_Coordinate: 36.808832
- Description_of_Geographic_Extent: Pipe Spring National Monument and environs
- What does it look like?
- Does the data set describe conditions during a particular time period?
- Calendar_Date: Unknown
- Currentness_Reference: Unknown
- What is the general form of this data set?
- Geospatial_Data_Presentation_Form: remote-sensing image
- How does the data set represent geographic features?
- How are geographic features stored in the data set?
This is a Raster data set.
It contains the following raster data types:
- Dimensions 7634 x 6365 x 1, type Pixel
- What coordinate system is used to represent geographic features?
- Grid_Coordinate_System_Name: Universal Transverse Mercator
- Universal_Transverse_Mercator:
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- UTM_Zone_Number: 12
- Transverse_Mercator:
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- Scale_Factor_at_Central_Meridian: 0.999600
- Longitude_of_Central_Meridian: -111.000000
- Latitude_of_Projection_Origin: 0.000000
- False_Easting: 500000.000000
- False_Northing: 0.000000
Planar coordinates are encoded using row and column
Abscissae (x-coordinates) are specified to the nearest 1.000000
Ordinates (y-coordinates) are specified to the nearest 1.000000
Planar coordinates are specified in meters
The horizontal datum used is North American Datum of 1983.
The ellipsoid used is Geodetic Reference System 80.
The semi-major axis of the ellipsoid used is 6378137.000000.
The flattening of the ellipsoid used is 1/298.257222.
- How does the data set describe geographic features?
- Entity_and_Attribute_Overview:
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24-bit pixels, 3 band color (RGB) represent brightness values 0 - 255
- Entity_and_Attribute_Detail_Citation: None
- Who are the originators of the data set? (may include formal authors, digital compilers, and editors)
- Who also contributed to the data set?
- To whom should users address questions about the data?
none
- From what previous works were the data drawn?
- How were the data generated, processed, and modified?
- What similar or related data should the user be aware of?
Are there legal restrictions on access or use of the data?
- Access_Constraints: none
- Use_Constraints: none
- Who distributes the data set? (Distributor 1 of 1)
USGS/CSS/Core Science Analytics and Synthesis
c/o USGS-NPS Vegetation Mapping Program Coordinator
Denver Federal Center, Building 810, Room 8000, MS 302
Denver, Colorado 80225
(303) 202-4220 (voice)
303-202-4219 (FAX)
gs-b-npsveg@usgs.gov
- What's the catalog number I need to order this data set?
Downloadable Data
- What legal disclaimers am I supposed to read?
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.
- How can I download or order the data?
- Availability in digital form:
- Cost to order the data: None
- Dates:
- Last modified: 19-Aug-2008
Last Reviewed: 04-Jun-2010
- Metadata author:
-
USGS/CSS/Core Science Analytics and Synthesis
c/o USGS-NPS Vegetation Mapping Program Coordinator
Denver Federal Center, Building 810, Room 8000, MS 302
Denver, Colorado 80225
(303) 202-4220 (voice)
303-202-4219 (FAX)
gs-b-npsveg@usgs.gov
- Metadata standard:
- FGDC Biological Data Profile of the Content Standard for Digital Geospatial Metadata (FGDC-STD-001.1-1999)
- Metadata extensions used:
-
Generated by mp version 2.9.12 on Fri Jun 04 14:36:24 2010
Return to USGS Vegetation Characterization Program at Pipe Spring National Monument
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U.S. Department of the Interior |
U.S. Geological Survey
