radarsat2_sept_25_2010_water_v1

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: Dr. Jon Chipman

Publication_Date: September 29, 2010

Publication_Time: 5pm

Title: radarsat2_sept_25_2010_water_v1

Edition: 1

Geospatial_Data_Presentation_Form: vector digital data

Online_Linkage:

<ftp://ftp.ssec.wisc.edu/pub/wisconsinview/floods/2010_September/radarsat2_sept_25_2010_water.zip>

Description:

Abstract:

This shapefile represents processing output from one RADARSAT-2 image of Wisconsin during the September flooding event of 2010. Imagery date is September 25, 2010. ALL WATER DETECTED IS REPRESENTED.
This file has NOT been combined with any other source of water information.
This is a final product that includes known errors of commission (features identified as water that are not water -- usually smooth fields or hillside radar shadows) errors of omission (water not identified -- usually because of tree canopy or narrowness of feature). There are geometric errors too where the original satellite imagery did not align properly with accepted vector files. Efforts were made to correct this but it was not completely resolved.

Purpose:

This data is intended to help with recovery efforts of Wisconsin Emergency Management and other State, Federal, and County government entities. Because of its complexity it should be used with caution. It should be used to identify general areas of concern for further study or ground survey, not as a definitive result. As subsets of this product are compared with field studies and additional "ground truth" data (such as 2008 1-meter NAIP available from <http://www.wisconsinview.org>), higher quality products may result. Taken as, this is a "best guess" product and should be treated as such.

Supplemental_Information:

Image processing by Dr. Sam Batzli, Space Science & Engineering Center, University of Wisconsin-Madison, data acquisition made possible through activation of the International Charter (Call #331 and 333) by Wisconsin Emergency Management and the US Geological Survey. Source Imagery: RADARSAT-2 Data and Products © MacDONALD, DETTWILER AND ASSOCIATES LTD. (2010) - All Rights Reserved. RADARSAT is an official mark of the Canadian Space Agency/Agence spatiale canadienne.
Here are the general steps used:
Dr. Batzli used ERDAS IMAGINE 10.1 to process the imagery and produced a single shapefile showing all water detected. These are the steps he used:
(1) Adjusted coordinates to fit more closely with 1:24k maps (3rd polynomial solution with 67 tie points needed). (2) Reprojected from UTM zone 15 to WTM83-91 (Wisconsin State Standard). (3) Ran a "frost filter" to reduce impact of speckle noise. (4) Ran unsupervised classification with 10 categories 10 iterations to .99 convergence. (5) Imported .img file into ArcGIS 9.3.1. (6) Exported to shapefile. (7) Removed features calculated to be less than 3000 sq meters to reduce uniform errors of commission found along forested edges and hillsides.

Time_Period_of_Content:

Time_Period_Information:

Multiple_Dates/Times:

Single_Date/Time:

Calendar_Date: September 25, 2010

Time_of_Day: n/a

Currentness_Reference: ground condition

Status:

Progress: Complete

Maintenance_and_Update_Frequency: None planned

Spatial_Domain:

Bounding_Coordinates:

West_Bounding_Coordinate: -92.535862

East_Bounding_Coordinate: -90.935921

North_Bounding_Coordinate: 44.763886

South_Bounding_Coordinate: 43.686831

Keywords:

Theme:

Theme_Keyword_Thesaurus: none

Theme_Keyword: flood

Theme_Keyword: floods

Theme_Keyword: flooding

Theme_Keyword: Wisconsin Emergency Management

Theme_Keyword: WisconsinView

Theme_Keyword: RADARSAT-2

Place:

Place_Keyword_Thesaurus: none

Place_Keyword: Wisconsin

Temporal:

Temporal_Keyword_Thesaurus: none

Temporal_Keyword: 2010

Temporal_Keyword: September

Access_Constraints: This is public domain data.

Use_Constraints: None. See "abstract" and "purpose" for limits on accuracy

Point_of_Contact:

Contact_Information:

Contact_Person_Primary:

Contact_Person: Dr. Sam Batzli

Contact_Organization: WisconsinView, Space Science & Engineering Center, UW-Madison

Contact_Position: Assistant Scientist

Contact_Address:

Address_Type: mailing address

Address: 1225 W Dayton St

City: Madison

State_or_Province: WI

Postal_Code: 53706

Country: USA

Contact_Voice_Telephone: 608-263-3126

Contact_TDD/TTY_Telephone: none

Contact_Facsimile_Telephone: 608-262-5974

Contact_Electronic_Mail_Address: sabatzli@wisc.edu

Contact_Instructions: Try e-mail first.

Browse_Graphic:

Browse_Graphic_File_Name:

<ftp://ftp.ssec.wisc.edu/pub/wisconsinview/floods/2010_September/radarsat2_sept_25_2010_water_v1_browse.jpg>

Browse_Graphic_File_Description: Browse graphic from ArcCatalog screen-shot.

Browse_Graphic_File_Type: JPEG

Data_Set_Credit:

Image processing by Dr. Sam Batzli, Space Science & Engineering Center, University of Wisconsin-Madison, data acquisition made possible through activation of the International Charter (Call #331 and 333) by Wisconsin Emergency Management and the US Geological Survey.

Security_Information:

Security_Classification_System: none

Security_Classification: none

Security_Handling_Description: none

Native_Data_Set_Environment: Microsoft Windows 7 ; ESRI ArcCatalog 9.3.1.3500

Data_Quality_Information:

Lineage:

Process_Step:

Process_Description: Metadata imported.

Source_Used_Citation_Abbreviation:

D:\flooding\shapefiles\spot_landsat_merge2\spot_landsat_merge2.shp.xml

Process_Date: 20081028

Process_Time: 16384700

Process_Step:

Process_Description:

Metadata imported. Updated information collected for June 2008 RADARSAT-1 processing.

Source_Used_Citation_Abbreviation: D:\flooding\radarsat\radarmap_v3.shp.xml

Process_Date: 20100929

Process_Time: 17293800

Process_Step:

Process_Description: Dataset copied.

Source_Used_Citation_Abbreviation:

Process_Date: 20100930

Process_Time: 00020700

Spatial_Data_Organization_Information:

Direct_Spatial_Reference_Method: Vector

Point_and_Vector_Object_Information:

SDTS_Terms_Description:

SDTS_Point_and_Vector_Object_Type: G-polygon

Point_and_Vector_Object_Count: 5521

Spatial_Reference_Information:

Horizontal_Coordinate_System_Definition:

Planar:

Map_Projection:

Map_Projection_Name: Transverse Mercator

Transverse_Mercator:

Scale_Factor_at_Central_Meridian: 0.999600

Longitude_of_Central_Meridian: -90.000000

Latitude_of_Projection_Origin: 0.000000

False_Easting: 520000.000000

False_Northing: -4480000.000000

Planar_Coordinate_Information:

Planar_Coordinate_Encoding_Method: coordinate pair

Coordinate_Representation:

Abscissa_Resolution: 0.000000

Ordinate_Resolution: 0.000000

Planar_Distance_Units: meters

Geodetic_Model:

Horizontal_Datum_Name: D_North_American_1983_HARN

Ellipsoid_Name: Geodetic Reference System 80

Semi-major_Axis: 6378137.000000

Denominator_of_Flattening_Ratio: 298.257222

Entity_and_Attribute_Information:

Detailed_Description:

Entity_Type:

Entity_Type_Label: radarsat2_sept_25_2010_water_v1

Attribute:

Attribute_Label: FID

Attribute_Definition: Internal feature number.

Attribute_Definition_Source: ESRI

Attribute_Domain_Values:

Unrepresentable_Domain:

Sequential unique whole numbers that are automatically generated.

Attribute:

Attribute_Label: Shape

Attribute_Definition: Feature geometry.

Attribute_Definition_Source: ESRI

Attribute_Domain_Values:

Unrepresentable_Domain: Coordinates defining the features.

Attribute:

Attribute_Label: ID

Attribute_Definition: Polygon number from merge efforts.

Attribute_Definition_Source: Chipman

Attribute:

Attribute_Label: GRIDCODE

Attribute_Definition:

Used when raster converted to vector as a way to differentiate land from water. Only water is included in this shapefile. 1=Water 2=Flood Water

Attribute_Definition_Source: Chipman

Attribute:

Attribute_Label: Class_name

Attribute:

Attribute_Label: area

Distribution_Information:

Resource_Description:

Downloadable Data. Visit <http://www.wisconsinview.org> and <ftp://ftp.ssec.wisc.edu/pub/wisconsinview/floods/2010_September/>

Standard_Order_Process:

Digital_Form:

Digital_Transfer_Information:

Transfer_Size: 2.163

Digital_Transfer_Option:

Online_Option:

Computer_Contact_Information:

Network_Address:

Network_Resource_Name:

<ftp://ftp.ssec.wisc.edu/pub/wisconsinview/floods/2008_June/shapefiles/final/radarmap_v3.zip>

Metadata_Reference_Information:

Metadata_Date: 20100930

Metadata_Contact:

Contact_Information:

Contact_Person_Primary:

Contact_Person: Dr. Sam Batzli

Contact_Organization: WisconsinView, Space Science & Engineering Center, UW-Madison

Contact_Position: Assistant Scientist

Contact_Address:

Address_Type: mailing address

Address: 1225 W Dayton St

City: Madison

State_or_Province: WI

Postal_Code: 53706

Country: USA

Contact_Voice_Telephone: 608-263-3126

Contact_TDD/TTY_Telephone: none

Contact_Facsimile_Telephone: 608-262-5974

Contact_Electronic_Mail_Address: sabatzli@wisc.edu

Contact_Instructions: Try e-mail first.

Metadata_Standard_Name: FGDC Content Standards for Digital Geospatial Metadata

Metadata_Standard_Version: FGDC-STD-001-1998

Metadata_Time_Convention: local time

Metadata_Extensions:

Online_Linkage: <http://www.esri.com/metadata/esriprof80.html>

Profile_Name: ESRI Metadata Profile