1999 Photo Mosaic - High Water - Pool 8

Metadata:

Identification_Information:
Citation:
Citation_Information:
Originator: Upper Midwest Environmental Sciences Center
Originator: Long Term Resource Monitoring Program
Publication_Date: Unpublished Material
Title: 1999 Photo Mosaic - High Water - Pool 8
Online_Linkage:
ftp://ftp.umesc.usgs.gov/pub/gis_data/aerial_photo s/other_georef_photos/pool_8
Description:
Abstract:
The U.S. Geological Survey's Upper Midwest Environmental Sciences Center (UMESC) collects aerial photography of the Upper Mississippi River System (UMRS) floodplain on a regular basis. These data are used to support the Center's long-term goals of understanding the UMRS and developing useful products for the Long Term Resource Monitoring Program (LTRMP). During May 1999, 1:15,000-scale true color aerial photos were collected within Pool 8 during high water conditions for an LTRMP project. The photos were collected using a 60% stereo overlap between photos in the same flight line and a 30% overlap between flight lines. Approximately every other photo was scanned, georeferenced, and compiled into the mosaic. The mosaic was then compressed into a .sid image file so it would be easier to download. Note: While the photos have been georeferenced, they were not orthorectified.
Purpose:
The Upper Midwest Environmental Sciences Center administers the Long Term Resource Monitoring Program (LTRMP), authorized under the Water Resources Development Act of 1986 (Public Law 99-662). The mission of the LTRMP is to provide decision-makers with information to maintain the Upper Mississippi River System (UMRS) as a viable large river ecosystem given its multiple-use character. The long-term goals of the Program are to understand the system, determine resource trends and impacts, develop management alternatives, manage information, and develop useful products. The collection and distribution of high-resolution aerial photography aids the Center in meeting these goals.
Supplemental_Information:
To make the data easier to download, the photo mosaic has been compressed and is being served as a georeferenced MrSid image. A software program that contains MrSid image support or a MrSid image viewer is required to view these data. A free image viewer capable of subsetting, resampling, and exporting the compressed image to georeferenced TIFF image (a .tif image and a .tfw world file) is available at http://www.lizardtech.com/. The data are stored in a Universal Transverse Mercator (UTM) projection, zone 15. Two datum options are available, North American Datum 1927 (NAD27) and North American Datum 1983 (NAD83). NOTE: If you use the software program ArcView GIS version 3.x to view these data, you'll need to upgrade the program MrSid dynamic link library file (.dll) if you want access and use the NAD83 files. The MrSid .dll file distributed with the 3.x versions of the program does not read the image's world files (.sdw), causing the images to always be displayed in NAD27. New .dll files can be obtained at http://www.lizardtech.com/products/updates.html.
Time_Period_of_Content:
Time_Period_Information:
Single_Date/Time:
Calendar_Date: 19990626
Currentness_Reference: ground condition
Status:
Progress: Complete
Maintenance_and_Update_Frequency: As needed
Spatial_Domain:
Description_of_Geographic_Extent: Upper Mississippi River Lower Pool 7 and Pool 8.
Bounding_Coordinates:
West_Bounding_Coordinate: -91.3749
East_Bounding_Coordinate: -91.1773
North_Bounding_Coordinate: 43.9291
South_Bounding_Coordinate: 43.5578
Keywords:
Theme:
Theme_Keyword_Thesaurus: None
Theme_Keyword: Floodplain
Theme_Keyword: River
Theme_Keyword: Water
Place:
Place_Keyword_Thesaurus: None
Place_Keyword: Minnesota
Place_Keyword: Mississippi River
Place_Keyword: Pool 7
Place_Keyword: Pool 8
Place_Keyword: La Crosse, WI
Place_Keyword: La Crescent, MN
Place_Keyword: Wisconsin
Access_Constraints: None, except MrSID image support is required.
Use_Constraints: None
Point_of_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: Upper Midwest Environmental Sciences Center
Contact_Address:
Address_Type: mailing and physical address
Address: Upper Midwest Environmental Sciences Center
Address: Spatial Analysis & Computer Technology Branch
Address: 2630 Fanta Reed Road
City: La Crosse
State_or_Province: Wisconsin
Postal_Code: 54603-1223
Country: USA
Contact_Voice_Telephone: 608-783-6451
Contact_Voice_Telephone: 608-783-7550
Contact_Facsimile_Telephone: 608-783-8058
Hours_of_Service: 8:00 a.m. to 4:00 p.m. Monday Through Friday
Data_Quality_Information:
Positional_Accuracy:
Horizontal_Positional_Accuracy:
Horizontal_Positional_Accuracy_Report:
The horizontal positional accuracy is tested by visual comparison of the data on-screen with existing data sets that cover the same area. The basemaps used to register the photos were 1:12,000 digital orthophoto quadrangles (DOQQs).
Lineage:
Source_Information:
Source_Citation:
Citation_Information:
Originator: Upper Midwest Environmental Sciences Center
Originator: Long Term Resource Monitoring Program
Publication_Date: Unpublished Material
Title: 1999 Photos - High Water - Pool 8
Type_of_Source_Media: photographs
Source_Time_Period_of_Content:
Time_Period_Information:
Single_Date/Time:
Calendar_Date: 19990626
Source_Currentness_Reference: ground condition
Source_Citation_Abbreviation: 1999 High Water Photos
Source_Contribution: Provided the photographic images of the river.
Source_Information:
Source_Citation:
Citation_Information:
Originator: U.S. Geological Survey - National Mapping Division
Publication_Date: varies
Title: Digital Orthophoto Quadrangles
Other_Citation_Details:
A digital orthophoto is a digital image of an aerial photograph in which displacements caused by the camera and the terrain have been removed. It combines the image characteristics of a photograph with the geometric qualities of a map. The standard digital orhthophoto produced by the USGS is a black-and-white, or color infrared, 1-meter ground resolution quarter quadrangle image. The accuracy and quality of USGS digital orthophotos must meet National Map Accuracy Standards at 1:12,000 scale for 3.75-minute quadrangles and at 1:24,000-scale for 7.5-minute quadrangles.
Online_Linkage: http://nsdi.usgs.gov/products/doq.html
Type_of_Source_Media: digital database file
Source_Time_Period_of_Content:
Source_Currentness_Reference: ground condition
Source_Citation_Abbreviation: DOQ
Source_Contribution: Basemaps used to register the photographs.
Source_Information:
Source_Citation:
Citation_Information:
Originator: Upper Midwest Environmental Sciences Center
Publication_Date: 20001231
Title:
1989 LCU data for the Upper Mississippi River - version 1
Edition:
Geospatial_Data_Presentation_Form: database
Other_Citation_Details:
Available to download via. the UMESC Internet Web Site
Online_Linkage: http:www.umesc.usgs.gov
Type_of_Source_Media: digital database file
Source_Time_Period_of_Content:
Time_Period_Information:
Range_of_Dates/Times:
Beginning_Date: 19890715
Ending_Date: 19890915
Source_Currentness_Reference: ground condition
Source_Citation_Abbreviation: 1989 LCU
Source_Contribution:
Data set used to check the registration of the photo mosaics.
Process_Step:
Process_Description:
The step in creating photo mosaics is to select which photos will be scanned and georeferenced. To provide photo interpreters with stereo coverage, the photos were collected using a 60% overlap between photos within the same flight line and 30% overlap between adjacent flight lines. To reduce the number of photos that needed to be scanned, all photos were laid out geographically on a table so the photo overlaps could be reviewed. Approximately every other photo was pulled from the collection and set aside.
Process_Date: Unknown
Process_Step:
Process_Description:
GIS interns placed each photograph in a scanner with the photo's most northerly side directed upwards. The photos were scanned using a 200 dots per inch (dpi) image resolution, and the files were saved as TIFF images. The photo image was assigned a name that described the photo's (1) flight line, (2) photo number, (3) the year in which the photo was collected, and (4) a distinction between true color and color infrared.
Process_Date: Unknown
Process_Step:
Process_Description:
Each photo was georeferenced using Image Analyst 1.0 Extension for ArcView 3.2. The base imagery in all cases was either 1:12,000 DOQ images or 1:24,000 DRG data. Root mean square (RMS) errors under 7.0 were desired for all areas.
Process_Date: Unknown
Process_Step:
Process_Description:
Once the photos were referenced, a photo mosaic was created using MrSID Geospatial Encoder 1.4.
Process_Date: Unknown
Process_Step:
Process_Description:
A quality check was performed on the full pool mosaic. USGS DRGs, USGS DOQQs, UMESC 1989 LCU data, and other data sets for the area were used to accomplish this Quality Assurance/Quality Check (QA/QC).
Process_Date: Unknown
Process_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: Upper Midwest Environmental Sciences Center
Contact_Address:
Address_Type: mailing and physical address
Address: Upper Midwest Environmental Sciences Center
Address: Spatial Analysis & Computer Technology Branch
Address: 2630 Fanta Reed Road
City: La Crosse
State_or_Province: Wisconsin
Postal_Code: 54603-1223
Country: USA
Contact_Voice_Telephone: 608-783-6451
Contact_Voice_Telephone: 608-783-7550
Contact_Facsimile_Telephone: 608-783-8058
Hours_of_Service: 8:00 a.m. to 4:00 p.m. Monday Through Friday
Spatial_Data_Organization_Information:
Direct_Spatial_Reference_Method: Raster
Spatial_Reference_Information:
Horizontal_Coordinate_System_Definition:
Planar:
Grid_Coordinate_System:
Grid_Coordinate_System_Name:
Universal_Transverse_Mercator:
Universal_Transverse_Mercator:
UTM_Zone_Number: 15
Transverse_Mercator:
Longitude_of_Central_Meridian: -93
Latitude_of_Projection_Origin: 0
False_Easting: 500000
False_Northing: 0
Scale_Factor_at_Central_Meridian: .9996
Geodetic_Model:
Horizontal_Datum_Name: North American Datum of 1927
Ellipsoid_Name: Clarke 1866
Semi-major_Axis: 6378206.4
Denominator_of_Flattening_Ratio: 294.978698
Entity_and_Attribute_Information:
Distribution_Information:
Distributor:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: Upper Midwest Environmental Sciences Center
Contact_Address:
Address_Type: mailing and physical address
Address: Upper Midwest Environmental Sciences Center
Address: Spatial Analysis & Computer Technology Branch
Address: 2630 Fanta Reed Road
City: La Crosse
State_or_Province: Wisconsin
Postal_Code: 54603-1223
Country: USA
Contact_Voice_Telephone: 608-783-6451
Contact_Voice_Telephone: 608-783-7550
Contact_Facsimile_Telephone: 608-783-8058
Hours_of_Service: 8:00 a.m. to 4:00 p.m. Monday Through Friday
Distribution_Liability:
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 accuracy or utility of the data on any other 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 strongly recommended that these data are directly acquired from a U.S. Geological Survey server, and not indirectly through other sources which may have changed the data in some way. It is also strongly recommended that careful attention be paid to the contents of the metadata file associated with these data. The U.S. Geological Survey shall not be held liable for improper or incorrect use of the data described and/or contained herein.
Metadata_Reference_Information:
Metadata_Date: 20010829
Metadata_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: Upper Midwest Environmental Sciences Center
Contact_Address:
Address_Type: mailing and physical address
Address: Upper Midwest Environmental Sciences Center
Address: Spatial Analysis & Computer Technology Branch
Address: 2630 Fanta Reed Road
City: La Crosse
State_or_Province: Wisconsin
Postal_Code: 54603-1223
Country: USA
Contact_Voice_Telephone: 608-783-6451
Contact_Voice_Telephone: 608-783-7550
Contact_Facsimile_Telephone: 608-783-8058
Hours_of_Service: 8:00 a.m. to 4:00 p.m. Monday Through Friday
Metadata_Standard_Name:
NBII Content Standard for National Biological Information Infrastructure Metadata
Metadata_Standard_Version: December 1995
Generated by mp on Wed Aug 29 09:39:22 2001