WEBMAP.LANDSAT_LZ77 (Landsat Orthoimagery Mosaic)

Metadata also available as

Metadata:

Identification_Information:
Citation:
Citation_Information:
Originator: U.S. Geological Survey
Publication_Date: 20040622
Title: WEBMAP.LANDSAT_LZ77 (Landsat Orthoimagery Mosaic)
Edition: 0.1
Geospatial_Data_Presentation_Form: remote-sensing image
Publication_Information:
Publication_Place: Sioux Falls, SD
Publisher: U.S. Geological Survey
Online_Linkage: <http://seamless.usgs.gov>
Description:
Abstract:
An orthoimage is remotely-sensed image data in which displacement of features in the image caused by terrain relief and sensor orientation have been mathematically removed. Orthoimagery combines the image characteristics of a photograph with the geometric qualities of a map. The Landsat Mosaic orthoimagery database contains Landsat Thematic Mapper imagery for the conterminous United States. The more than 700 Landsat scenes have been resampled to a 1-arc-second (approximately 30-meter) sample interval in a geographic coordinate system using the North American Horizontal Datum of 1983. Three bands have been selected from the eight spectral bands available for each frame. These are bands 4 (near-infrared), 3 (red), and 2 (green), typically displayed as red, green, and blue, respectively. The image is a full-resolution (spectral and spatial), 24-bit color-infrared composite that simulates color infrared film as a "false color composite".
Purpose:
These data have been created as a result of the need for having geospatial data immediately available and easily accessible in order to provide geographic reference for Federal, State, and local emergency responders, as well as for homeland security efforts. Orthoimages also serve a variety of purposes, from interim maps to field references for earth science investigations and analysis. The digital orthoimage is useful as a layer of a geographic information system. This data can be used to provide reference information for Web browsers and for map applications at a scale of 1:100,000 or smaller. Larger scale orthoimagery such as digital orthophoto quadrangles will be more accurate, but often at the expense of timely updates.
Supplemental_Information:
Information in quotation marks is taken directly from the original metadata.
PATHROW_ACQUISITIO
35381999-11-13T17:44:56Z
34381999-10-21T17:38:42Z
Time_Period_of_Content:
Time_Period_Information:
Range_of_Dates/Times:
Beginning_Date: 20000101
Ending_Date: 20011231
Currentness_Reference: ground condition
Status:
Progress: Complete
Maintenance_and_Update_Frequency: Irregular
Spatial_Domain:
Bounding_Coordinates:
West_Bounding_Coordinate:-109.3971686
East_Bounding_Coordinate:-109.01417333
North_Bounding_Coordinate:31.66875502
South_Bounding_Coordinate:31.33121249
Keywords:
Theme:
Theme_Keyword_Thesaurus: None
Theme_Keyword: digital spatial data
Theme_Keyword: U.S. Geological Survey
Theme_Keyword: USGS
Theme_Keyword: GIS
Theme_Keyword: Earth science
Theme_Keyword: imagery
Theme_Keyword: infrared wavelengths
Theme_Keyword: satellite
Theme_Keyword: radiance
Theme_Keyword: thematic mapper
Theme_Keyword: Landsat
Theme_Keyword: remote sensing
Theme_Keyword: infrared imagery
Theme_Keyword: emissivity
Theme:
Theme_Keyword_Thesaurus: ISO 19115 Category
Theme_Keyword: imageryBaseMapsEarthCover
Place:
Place_Keyword_Thesaurus:
U.S. Department of Commerce, 1995, Countries, dependencies, areas of special sovereignty, and their principal administrative divisions, Federal Information Processing Standard 10-4,): Washington, D.C., National Institute of Standards and Technology
Place_Keyword: United States
Place_Keyword: U.S.
Place_Keyword: US
Place:
Place_Keyword_Thesaurus:
U.S. Department of Commerce, 1987, Codes for the identification of the States, the District of Columbia and the outlying areas of the United States, and associated areas (Federal Information Processing Standard 5-2): Washington, D.C., National Institute of Standards and Technology
Place_Keyword: AL
Place_Keyword: AZ
Place_Keyword: AR
Place_Keyword: CA
Place_Keyword: CO
Place_Keyword: CT
Place_Keyword: DE
Place_Keyword: FL
Place_Keyword: GA
Place_Keyword: ID
Place_Keyword: IL
Place_Keyword: IN
Place_Keyword: IA
Place_Keyword: KS
Place_Keyword: KY
Place_Keyword: LA
Place_Keyword: ME
Place_Keyword: MD
Place_Keyword: MA
Place_Keyword: MI
Place_Keyword: MN
Place_Keyword: MS
Place_Keyword: MO
Place_Keyword: MT
Place_Keyword: NE
Place_Keyword: NV
Place_Keyword: NH
Place_Keyword: NJ
Place_Keyword: NM
Place_Keyword: NY
Place_Keyword: NC
Place_Keyword: ND
Place_Keyword: OH
Place_Keyword: OK
Place_Keyword: OR
Place_Keyword: PA
Place_Keyword: RI
Place_Keyword: SC
Place_Keyword: SD
Place_Keyword: TN
Place_Keyword: TX
Place_Keyword: UT
Place_Keyword: VT
Place_Keyword: VA
Place_Keyword: WA
Place_Keyword: WV
Place_Keyword: WI
Place_Keyword: WY
Access_Constraints: None
Use_Constraints:
None. Acknowledgment of the U.S. Geological Survey would be appreciated for products derived from these data.
Point_of_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: U.S. Geological Survey
Contact_Position: Customer Services Representative
Contact_Address:
Address_Type: mailing and physical address
Address: EROS Data Center
Address: 47914 252nd Street
City: Sioux Falls
State_or_Province: SD
Postal_Code: 57198-0001
Country: USA
Contact_Voice_Telephone: 605/594-6151
Contact_TDD/TTY_Telephone: 605/594-6933
Contact_Facsimile_Telephone: 605/594-6589
Contact_Electronic_Mail_Address: custserv@usgs.gov
Hours_of_Service: 0800 - 1600, CT, -6h GMT, M - F
Data_Set_Credit: U.S. Geological Survey
Security_Information:
Security_Classification_System: None
Security_Classification: Unclassified
Security_Handling_Description: N/A
Native_Data_Set_Environment:
Microsoft Windows 2000 Version 5.1 (Build 2600) Service Pack 1; ESRI ArcCatalog 8.3.0.800
Data_Quality_Information:
Attribute_Accuracy:
Attribute_Accuracy_Report:
The Enhanced Thematic Mapper Plus (ETM+) was designed to provide a geometric accuracy of at least 250 meters (1 sigma) in low-relief areas at sea level. Terrain Correction (Level 1T) includes radiometric, geometric, and precision correction, as well as the use of a digital elevation model (DEM) to correct parallax error due to local topographic relief.
Quantitative_Attribute_Accuracy_Assessment:
Attribute_Accuracy_Value: 0.5
Attribute_Accuracy_Explanation:
There are three on-board solar calibrators to provide an absolute accuracy of 5 percent.
Logical_Consistency_Report:
All seamlines and tile edges are visually inspected. This check ensures balanced radiometry, and no VOID areas or anomalies. The L7 Data Quality Team at EROS issues Calibration Parameter Files (CPFs) containing over 15,000 coefficients that describe the radiometric and geometric characteristics of Landsat 7 data.
Completeness_Report:
The database contains more than 700 Landsat scenes which have been resampled to a 1-arc-second (approximately 30-meter) sample interval in a geographic coordinate system using the North American Horizontal Datum of 1983. The number and timing of images added will vary with cloud cover, the need for more current data, and budget constraints.
Positional_Accuracy:
Horizontal_Positional_Accuracy:
Horizontal_Positional_Accuracy_Report:
The Landsat ETM+ sensor is a nadir-viewing, eight-band multispectral scanning radiometer that detects spectrally filtered radiation from several portions of the electromagnetic spectrum. The Landsat 7 Enhanced Thematic Mapper Plus (ETM+) sensor includes a 15-meter (m) panchromatic band (band 8), as well as improved resolution (60 m) for the thermal infrared band (band 6). All bands have two gain settings (high and low) for increased radiometric sensitivity and dynamic range, with band 6 acquired in both high and low gain for all scenes.
Quantitative_Horizontal_Positional_Accuracy_Assessment:
Horizontal_Positional_Accuracy_Value: 325
Horizontal_Positional_Accuracy_Explanation:
The horizontal distance between the perpendiculars through the LPS calculated "true" WRS Scene Center and the nominal (known) WRS scene center on the ground.
Lineage:
Source_Information:
Source_Citation:
Citation_Information:
Originator: Multi-Resolution Land Characteristics (MRLC) Project
Publication_Date: Unknown
Title: Landsat 7 ETM+
Geospatial_Data_Presentation_Form: remote-sensing image
Publication_Information:
Publication_Place: Sioux Falls, SD
Publisher: U.S. Geological Survey
Online_Linkage: <http://www.mrlc.gov>
Source_Scale_Denominator: 8
Type_of_Source_Media: digital tape media
Source_Time_Period_of_Content:
Time_Period_Information:
Range_of_Dates/Times:
Beginning_Date: 20000101
Ending_Date: 20011231
Source_Currentness_Reference: ground condition
Source_Citation_Abbreviation: ETM+
Source_Contribution:
The image files are in absolute radiance units scaled to 8 bits.
Process_Step:
Process_Description:
Three bands are selected from the 8 spectral bands that are provided for each path and row frame. These three bands provide a 24-bit color composite. As with other layers, pyramid layers are built that provide map services to be rendered at 2,4,8,16,32,64,128 and 256 arc-second resolution. A technique was developed to strip overlap and sidelap areas, and assign each pixel to a single path and row. The orthoimage layer is created to be consistent with the existing layers in the database, including the National Elevation Dataset (NED), NED shaded relief, the National Hydrography Dataset (NHD), the National Land Cover Dataset (NLCD), selected names from the Geographic Names Information System (GNIS), and state and county boundaries.
Process_Date: Unknown
Process_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: U.S. Geological Survey
Contact_Position: Customer Services Representative
Contact_Address:
Address_Type: mailing and physical address
Address: U.S. Geological Survey, EROS Data Center
Address: 47914 252nd St.
City: Sioux Falls
State_or_Province: SD
Postal_Code: 57198-0001
Country: USA
Contact_Voice_Telephone: +001 605-594-6151
Contact_Voice_Telephone: U.S. toll free: 1-888-ASK-USGS (275-8747)
Contact_TDD/TTY_Telephone: +001-605-594-6933
Contact_Facsimile_Telephone: +001 605-594-6589
Contact_Electronic_Mail_Address: custserv@usgs.gov
Spatial_Data_Organization_Information:
Direct_Spatial_Reference_Method: Raster
Raster_Object_Information:
Raster_Object_Type: Pixel
Row_Count: 96258
Column_Count: 223075
Vertical_Count: 1
Spatial_Reference_Information:
Horizontal_Coordinate_System_Definition:
Geographic:
Latitude_Resolution: 0.000001
Longitude_Resolution: 0.000001
Geographic_Coordinate_Units: Decimal degrees
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
Distribution_Information:
Distributor:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: U.S. Geological Survey
Contact_Position: Customer Services Representative
Contact_Address:
Address_Type: mailing and physical address
Address: EROS Data Center
Address: 47914 252nd Street
City: Sioux Falls
State_or_Province: SD
Postal_Code: 57198-0001
Country: USA
Contact_Voice_Telephone: 605/594-6151
Contact_TDD/TTY_Telephone: 605/594-6933
Contact_Facsimile_Telephone: 605/594-6589
Contact_Electronic_Mail_Address: custserv@usgs.gov
Hours_of_Service: 0800 - 1600, CT, -6h GMT, M - F
Contact_Instructions:
The USGS point of contact is for questions relating to the data display and download from this web site. Under current USGS policy, precision- and terrain-corrected Landsat 7 products can only be distributed to USGS researchers.
Resource_Description:
Downloadable Data. The "Transfer_Size" listed below is actually variable. The entire database contains 120 GB.
Distribution_Liability:
Although these data have been processed successfully on a computer system at the USGS, no warranty expressed or implied is made by the USGS regarding the use of the data on any other system, nor does the act of distribution constitute any such warranty. Data may have been compiled from various outside sources. Spatial information may not meet National Map Accuracy Standards. This information may be updated without notification. The USGS shall not be liable for any activity involving these data, installation, fitness of the data for a particular purpose, its use, or analyses results.
Standard_Order_Process:
Digital_Form:
Digital_Transfer_Information:
Format_Name: ARCG and/or GeoTIFF
Format_Version_Number: ArcGIS 8.2
Format_Specification: ASCII
Transfer_Size: 0.001
Digital_Transfer_Option:
Online_Option:
Computer_Contact_Information:
Network_Address:
Network_Resource_Name: <http://seamless.usgs.gov>
Access_Instructions:
The URL <http://seamless.usgs.gov> provides a map interface that allows for data downloads within a customer defined area of interest. Zoom tools are available that can be used to investigate areas of interest on the map interface. The download tool allows the customer to capture layers from the map, utilizing the Seamless Data Distribution System process for downloading. A request summary page is then generated with the download layers listed. By clicking the "download" button on the summary page, a zipped file will be generated that can be saved on the customer's computer. The file can then be unzipped and imported into various user software applications.
Online_Computer_and_Operating_System: Not available for dissemination
Fees: None
Turnaround: Variable
Custom_Order_Process: Contact Customer Services
Technical_Prerequisites:
ESRI ArcMap Suite and/or Arc/Info software, and supporting operating systems.
Available_Time_Period:
Time_Period_Information:
Range_of_Dates/Times:
Beginning_Date: 20000101
Ending_Date: 20011231
Metadata_Reference_Information:
Metadata_Date: 20040623
Metadata_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: U.S. Geological Survey
Contact_Person: REQUIRED: The person responsible for the metadata information.
Contact_Position: Customer Services Representative
Contact_Address:
Address_Type: mailing and physical address
Address: EROS Data Center
Address: 47914 252nd Street
City: Sioux Falls
State_or_Province: SD
Postal_Code: 57198-0001
Country: USA
Contact_Voice_Telephone: 605/594-6151
Contact_TDD/TTY_Telephone: 605/594-6933
Contact_Facsimile_Telephone: 605/594-6589
Contact_Electronic_Mail_Address: custserv@usgs.gov
Hours_of_Service: 0800 - 1600, CT, -6h GMT, M - F
Metadata_Standard_Name: FGDC Content Standards for Digital Geospatial 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: None
Metadata_Security_Classification: Unclassified
Metadata_Security_Handling_Description: N/A
Metadata_Extensions:
Online_Linkage: <http://www.esri.com/metadata/esriprof80.html>
Profile_Name: ESRI Metadata Profile
Generated by mp version 2.7.33 on Wed Jun 23 16:19:25 2004