Identification_Information: Citation: Citation_Information: Originator: Ferrigno, Jane G. Originator: Foley, Kevin M. Originator: Swithinbank, Charles Originator: Williams, Richard S., Jr. Originator: Dailide, Lina M. Publication_Date: 2005 Title: COASTAL CHANGE AND GLACIOLOGICAL MAP OF THE RONNE ICE SHELF AREA, ANTARCTICA: 1974-2002 Edition: first Geospatial_Data_Presentation_Form: map Series_Information: Series_Name: Geologic Investigations Map Issue_Identification: I-2600-D Publication_Information: Publication_Place: Reston, Virginia U.S.A. Publisher: U.S. Geological Survey Description: Abstract: Changes in the area and volume of the polar ice sheets are intricately linked to changes in global climate, and the resulting changes in sea level may severely impact the densely populated coastal regions on Earth. Loss of the West Antarctic part of the Antarctic ice sheet alone could cause a sea-level rise of approximately 6 m. The potential sea-level rise after melting of the entire Antarctic ice sheet is estimated to be 65 m to 73 m. In spite of its importance, the mass balance (the net volumetric gain or loss) of the Antarctic ice sheet is poorly known; it is not known whether the ice sheet is growing or shrinking. As a result, measurement of changes in the Antarctic ice sheet was given a very high priority in recommendations by the Polar Research Board of the National Research Council (1986), by the Scientific Committee on Antarctic Research (SCAR) (1989), and by the National Science Foundation's (1990) Division of Polar Programs. An archive of early 1970's Landsat 1, 2, and 3 Multispectral Scanner (MSS) images of Antarctica and the fact that the repeat coverage with satellite images provided an excellent means of documenting changes in the coastline of Antarctica provided the impetus for carrying out a comprehensive analysis of the glaciological features of the coastal regions and changes in ice fronts of Antarctica. The project was later modified to include Landsat 4 and 5 MSS and Thematic Mapper (TM) and RADARSAT images to compare changes over a 20- to 25- year time interval and to prepare a series of 24 1:1,000,000-scale and 1 1:5,000,000-scale U.S. Geological Survey Geologic Investigations Series Maps ("I-Maps") (Williams and others, 1995; Williams and Ferrigno, 1998; and Ferrigno and others, 2002) in both paper and digital format. Purpose: The Coastal-Change and Glaciological Mapping Project has five objectives, listed as follows: (1) to determine coastline changes that have occured during the past three decades; (2) to establish an accurate baseline series of 1:1,000,000-scale maps that define, from the analysis of Landsat and RADARSAT images, the glaciological characteristics of the coastline of Antarctica during the three time intervals (early 1970's, middle 1980's to early 1990's and 1997); (3) to determine velocities of outlet glaciers, ice streams and ice shelves, and the position of the grounding line from analysis of Landsat images and other sources of the same areas taken over time; (4) to compile a comprehensive inventory of named and unnamed outlet glaciers and ice streams in Antarctica that are mappable from Landsat images or from ancillary sources such as maps, gazeteers, digital databases, etc.; (5) to compile a 1:5,000,000-scale map of Antarctica derived from the 24 1:1,000,000-scale maps. Time_Period_of_Content: Time_Period_Information: Range_of_Dates/Times: Beginning_Date: 1974 Ending_Date: 2002 Currentness_Reference: ground condition Status: Progress: Complete Maintenance_and_Update_Frequency: None planned Spatial_Domain: Bounding_Coordinates: West_Bounding_Coordinate: -90.0 East_Bounding_Coordinate: -45.0 North_Bounding_Coordinate: -74.0 South_Bounding_Coordinate: -84.0 Keywords: Theme: Theme_Keyword_Thesaurus: None Theme_Keyword: coastal change Theme_Keyword: glaciology Theme_Keyword: ice velocity Place: Place_Keyword_Thesaurus: Alberts, F.G., ed., 1981, Geographic names of the Antarctic: Reston, VA, U.S. Board on Geographic Names, National Science Foundation Report No. NSF 81-5, 959 p. Place_Keyword: Bowie Crevasse Field Place_Keyword: Remington Glacier Place_Keyword: Hough Glacier Place_Keyword: Guerrero Glacier Place_Keyword: Zumberge Coast Place_Keyword: Kershaw Ice Rumples Place_Keyword: Henry Ice Rise Place_Keyword: Korff Ice rise Place_Keyword: Fowler Ice Rise Place_Keyword: Carlson Inlet Place_Keyword: Constellation Inlet Place_Keyword: Patriot Hills Place_Keyword: Dott Ice Rise Place_Keyword: Skytrain Ice Rise Place_Keyword: Hercules Inlet Place_Keyword: Plummer Glacier Place_Keyword: Seal Glacier Place_Keyword: Ahrngbrak Glacier Place_Keyword: Henderson Glacier Place_Keyword: Union Glacier Place_Keyword: Schanz Glacier Place_Keyword: Flanagan Glacier Place_Keyword: Schmidt Glacier Place_Keyword: Rennell Glacier Place_Keyword: Schneider Glacier Place_Keyword: Fendorf Glacier Place_Keyword: Dobbratz Glacier Place_Keyword: Splettstoesser Glacier Place_Keyword: Webster Glacier Place_Keyword: Gowang Glacier Place_Keyword: Minnesota Glacier Place_Keyword: Wessbecher Glacier Place_Keyword: Carey Glacier Place_Keyword: Hudman Glacier Place_Keyword: Thomas Glacier Place_Keyword: Nimitz Glacier Place_Keyword: Vinson Massif Place_Keyword: Branscomb Glacier Place_Keyword: Hansen Glacier Place_Keyword: Dater Glacier Place_Keyword: Grasswell Glacier Place_Keyword: Patton Glacier Place_Keyword: Ellen Glacier Place_Keyword: Young Glacier Place_Keyword: Embree Glacier Place_Keyword: Newcomer Glacier Place_Keyword: Evans Ice Stream Place_Keyword: Fletcher Ice Rise Place_Keyword: Rutford Ice Stream Place_Keyword: Ellsworth Mountains Place_Keyword: Sentinel Range Place_Keyword: Heritage Range Place_Keyword: Doake Ice Rumples Access_Constraints: None Use_Constraints: None Point_of_Contact: Contact_Information: Contact_Person_Primary: Contact_Person: Richard S. Williams Jr. Contact_Position: Project Chief, Coastal Change and Glaciological Maps of Antarctica Contact_Address: Address_Type: mailing and physical address Address: U.S. Geological Survey Woods Hole Field Center 384 Woods Hole Road City: Woods Hole State_or_Province: Massachusetts Postal_Code: 02543-1598 Country: USA Contact_Voice_Telephone: 508 457 2347 Contact_Electronic_Mail_Address: rswilliams@usgs.gov Data_Quality_Information: Attribute_Accuracy: Attribute_Accuracy_Report: The assignment of coastal features attributes is done qualitatively through examination of hardcopy Landsat imagery at the approximate scale of 1:500,000. The classification of a coastal feature is determined after examining between one and four Landsat images of the coastal feature. Date attributes are assigned to reflect the collection date of the image used to record a coastal feature. Logical_Consistency_Report: The COASTAL-CHANGE AND GLACIOLOGICAL MAP OF THE RONNE COAST AREA, ANTARCTICA is an assessment of change in coastal features examined in three periods of time, early 1970's; middle 1980's to early 1990's and 2002. Data are represented on the map grouped by symbol into these categories. The temporal frame of each period varies. The 1970's time frame is represented by data collected from Landsat 1 and 2 images acquired from December 4, 1972 to February 13, 1975, a period of a little over two years. The period from the middle 1980's through early 1990's is represented by Landsat 4 and 5 images acquired from December 10, 1984 through February 20, 1991,a period of over six years. A single image of the Pine Island Bay area dated November 12, 2001 from a NASA press release is included to show the 2001 Pine Island Glacier calving event The 1997 time frame is represented by data collected from the RADARSAT 125m Mosaic of Antarctic. The mosaic is comprised of images accquired in the course of a single mission dedicated to the production of the mosaic. The imagery was acquired from September 9, 1997 to October 20, 1997, a period of forty days. Completeness_Report: Data, in the form of remote-sensing imagery, was collected to study coastal features during three time periods, early 1970's; middle 1980's to early 1990's and 2002. Landsat 1 and 2 scenes selected for the early 1970's period provide complete coverage of the coastline of the study area. Landsat 4 and 5 images provide approximately 90% coverage of the coastline of the study area. Landsat images were selected to provide the highest cloud-free coverage possible but small localized areas of clouds do obscure some of the coastal coverage (less than 5%). The RADARSAT 125 meter resolution mosaic of Antarctica provides complete and cloud-free coverage for the 1997 time period. Positional_Accuracy: Horizontal_Positional_Accuracy: Horizontal_Positional_Accuracy_Report: The RADARSAT 125m Mosaic of Antarctica is used as horizontal control for purposes of this project. Producers of the mosaic claim a postional accuracy of 150m RMS in coastal areas where geodetic control points are abundant. Accuracy decreases towards the interior of the continent, reaching a high of 5 kilometers. An in-depth study of the accuracy of the mosaic by a Geodetic Engineer is included in the text of the report. Vertical_Positional_Accuracy: Vertical_Positional_Accuracy_Report: Elevation data for this project was excerpted from the Digital Elevation Model (DEM) produced by Byrd Polar Research Center in conjunction with the RADARSAT Mosaic of Antarctica. Vertical error of the DEM was assessed by comparison with six measured elevation transects. Three of the transects were done via GPS, one by radar echo sounding (RES) and two geodetic leveling. The range of vertical error is from 2 meters RMSE for a 129 kilometer GPS transect to 36 meters RMS for a 580 kilometer leveled transect. Construction and error analysis of this DEM is discussed at length in Liu, 1999. See report for full citation. 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Title: Landsat 5 Thematic Mapper Image 5207118008607010 Geospatial_Data_Presentation_Form: remote-sensing image Other_Citation_Details: Path 207 Row 118 Type_of_Source_Media: paper Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 19860311 Source_Currentness_Reference: ground condition Source_Citation_Abbreviation: Landsat Source_Contribution: coastal image Source_Information: Source_Citation: Citation_Information: Originator: USGS EROS Data Center Publication_Date: 19860311 Title: Landsat 5 Thematic Mapper Image 5207119008607010 Geospatial_Data_Presentation_Form: remote-sensing image Other_Citation_Details: Path 207 Row 119 Type_of_Source_Media: paper Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 19860311 Source_Currentness_Reference: ground condition Source_Citation_Abbreviation: Landsat Source_Contribution: coastal image Source_Information: Source_Citation: Citation_Information: Originator: USGS EROS Data Center Publication_Date: 19860228 Title: Landsat 5 Thematic Mapper Image 5210114008605910 Geospatial_Data_Presentation_Form: remote-sensing image Other_Citation_Details: Path 210 Row 114 Type_of_Source_Media: paper Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 19860228 Source_Currentness_Reference: ground condition Source_Citation_Abbreviation: Landsat Source_Contribution: coastal image Source_Information: Source_Citation: Citation_Information: Originator: USGS EROS Data Center Publication_Date: 19860228 Title: Landsat 5 Thematic Mapper Image 5210115008605910 Geospatial_Data_Presentation_Form: remote-sensing image Other_Citation_Details: Path 210 Row 115 Type_of_Source_Media: paper Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 19860228 Source_Currentness_Reference: ground condition Source_Citation_Abbreviation: Landsat Source_Contribution: coastal image Source_Information: Source_Citation: Citation_Information: Originator: USGS EROS Data Center Publication_Date: 19860308 Title: Landsat 4 Thematic Mapper Image 4207116008806810 Geospatial_Data_Presentation_Form: remote-sensing image Other_Citation_Details: Path 207 Row 116 Type_of_Source_Media: paper Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 19860308 Source_Currentness_Reference: ground condition Source_Citation_Abbreviation: Landsat Source_Contribution: coastal image Source_Information: Source_Citation: Citation_Information: Originator: USGS EROS Data Center Publication_Date: 19890127 Title: Landsat 4 Thematic Mapper Image 4210116008902710 Geospatial_Data_Presentation_Form: remote-sensing image Other_Citation_Details: Path 210 Row 116 Type_of_Source_Media: paper Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 19890127 Source_Currentness_Reference: ground condition Source_Citation_Abbreviation: Landsat Source_Contribution: coastal image Source_Information: Source_Citation: Citation_Information: Originator: USGS EROS Data Center Publication_Date: 19890111 Title: Landsat 4 Thematic Mapper Image 4210117008901110 Geospatial_Data_Presentation_Form: remote-sensing image Other_Citation_Details: Path 210 Row 117 Type_of_Source_Media: paper Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 19890111 Source_Currentness_Reference: ground condition Source_Citation_Abbreviation: Landsat Source_Contribution: coastal image Source_Information: Source_Citation: Citation_Information: Originator: USGS EROS Data Center Publication_Date: 19890130 Title: Landsat 4 Thematic Mapper Image 4215115008903010 Geospatial_Data_Presentation_Form: remote-sensing image Other_Citation_Details: Path 215 Row 115 Type_of_Source_Media: paper Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 19890130 Source_Currentness_Reference: ground condition Source_Citation_Abbreviation: Landsat Source_Contribution: coastal image Source_Information: Source_Citation: Citation_Information: Originator: USGS EROS Data Center Publication_Date: 19890130 Title: Landsat 4 Thematic Mapper Image 4215116008903010 Geospatial_Data_Presentation_Form: remote-sensing image Other_Citation_Details: Path 215 Row 216 Type_of_Source_Media: paper Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 19890130 Source_Currentness_Reference: ground condition Source_Citation_Abbreviation: Landsat Source_Contribution: coastal image Source_Information: Source_Citation: Citation_Information: Originator: USGS EROS Data Center Publication_Date: 20000113 Title: Landsat 7 Enhanced Thematic Mapper Plus Image 7215114000001350 Geospatial_Data_Presentation_Form: remote-sensing image Other_Citation_Details: Path 215 Row 214 Type_of_Source_Media: paper Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 20000113 Source_Currentness_Reference: ground condition Source_Citation_Abbreviation: Landsat Source_Contribution: coastal image Source_Information: Source_Citation: Citation_Information: Originator: Liu, H. Originator: Jezek, K. Originator: Li, B. Originator: Zhao, Z. Publication_Date: 2001 Title: Radarsat Antarctic Mapping Project Digital Elevation Model Version 2 Geospatial_Data_Presentation_Form: raster digital data Publication_Information: Publication_Place: Boulder, Colorado, USA Publisher: National Snow and Ice Data Center Online_Linkage: http://nsidc.org/data/nsidc-0082.html Type_of_Source_Media: online Source_Time_Period_of_Content: Time_Period_Information: Range_of_Dates/Times: Beginning_Date: 1940 Ending_Date: 1999 Source_Currentness_Reference: ground condition Source_Citation_Abbreviation: Radarsat DEM V2 Source_Contribution: elevation data Source_Information: Source_Citation: Citation_Information: Originator: Jezek, Kenneth C. Publication_Date: unknown Title: RADARSAT-1 SAR Mosaic of Antarctica - Med Res (125m pixel) Geospatial_Data_Presentation_Form: raster digital data Publication_Information: Publication_Place: Fairbanks, Alaska, USA Publisher: Alaska SAR Facility Geophysical Institute University of Alaska Fairbanks Online_Linkage: http://www.asf.alaska.edu/amm1/mosaic_med_res.html Type_of_Source_Media: online CD-ROM Source_Time_Period_of_Content: Time_Period_Information: Range_of_Dates/Times: Beginning_Date: 19970909 Ending_Date: 19971022 Source_Currentness_Reference: ground condition Source_Citation_Abbreviation: Radarsat 125m Mosaic Source_Contribution: digital mapping base position of dynamic coastal features in 1997 Process_Step: Process_Description: Hardcopy Landsat images are used where digital data are not available. Hardcopy is used in almost all cases. Hardcopy images are scanned to TIFF format digital files at a resolution of 400 dots per inch and a grayscale depth of 256 shades of gray. TIFF files are imported into commercial image-processing software for spatial correction. The images are corrected using a first-order polynomial adjustment based on tie-point correlation to the georeferenced RADARSAT mosaic. Standard procedure dictates that tie-points are best selected to form uniform distribution across the image to be corrected. The procedure for selecting tie-point deviated from standard procedure for two reasons: (1) Radar images such as the RADARSAT base suffer from "layover" or displacement of relief in the horizontal plane in the direction of the nadir line with respect to the sampling device. The degree of displacement is proportional to the magnitude of relief so tie-points are selected only in areas of low relief. (2) Coastal features are the primary interest of this study so tie-points are selected preferentially on or near coastal features in order to assure that corrections to the image are based preferentially on coastal feature data. Process_Date: 2001 Spatial_Data_Organization_Information: Direct_Spatial_Reference_Method: Vector Raster_Object_Information: Raster_Object_Type: Pixel Row_Count: 6971 Column_Count: 8387 Distribution_Information: Distributor: Contact_Information: Contact_Organization_Primary: Contact_Organization: U.S. Geological Survey, Earth Science Information Center Contact_Address: Address_Type: mailing address Address: Box 25286 Building 810 Denver Federal Center City: Denver State_or_Province: Colorado Postal_Code: 80225 Country: USA Contact_Voice_Telephone: (303) 202-4200 Contact_Facsimile_Telephone: (303) 202 4188 Contact_Electronic_Mail_Address: infoservices@usgs.gov Hours_of_Service: hours: 8:00 AM to 4:00 PM Monday through Friday (Mountain Time) Distribution_Liability: Although these data have been used by the U.S. Geological Survey, no warranty, expressed or implied is made by the USGS as to the accuracy of the data and related material nor shall the fact of distribution constitute any such warranty, and no responsibility is assumed by the USGS in connection therewith. Metadata_Reference_Information: Metadata_Date: 20030718 Metadata_Contact: Contact_Information: Contact_Person_Primary: Contact_Person: Kevin Foley Contact_Organization: U.S. Geological Survey, Geologic Division, Eastern Region, Earth Surface Processes Team Contact_Address: Address_Type: mailing and physical address Address: U.S. Geological Survey 12201 Sunrise Valley Drive Mail Stop 926A City: Reston State_or_Province: Virginia Postal_Code: 20192 Country: USA Contact_Voice_Telephone: (703) 648-5285 Contact_Facsimile_Telephone: (703) 648-6032 Metadata_Standard_Name: FGDC Content Standards for Digital Geospatial Metadata Metadata_Standard_Version: FGDC-STD-001-1998