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Structural data: brittle faults for the Ford Ranges, Marie Byrd Land, Antarctica Entry ID: Ford_Ranges |
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Summary
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Abstract:
The data set consists of a southern Africa subset of the 1km Global Tree Cover Data Set developed at the Laboratory for Global Remote Sensing Studies (LGRSS) at the University of Maryland. Data are available in both ASCII GRID and binary image files formats. Characterization of terrestrial vegetation from the Advanced Very High Resolution Radiometer (AVHRR) on the global to regional scale has traditionally been accomplished using classification schemes with discrete numbers of vegetation classes. Representation of vegetation into a limited number of homogeneous classes does not account for the variability within land cover, nor does the portrayal recognize transition zones between adjacent cover types. An alternative paradigm to describing land cover as discrete classes is to represent land cover as continuous fields of vegetation characteristics using a linear mixture model approach. This prototype data set, created by researchers at the Laboratory for Global Remote Sensing Studies (LGRSS) at the University of Maryland, contains 1-km cells estimating: 1) Percent tree cover; 2) Percentage cover for two layers representing leaf longevity (evergreen and deciduous); and 3) Percentage cover for two layers estimating leaf type (broadleaf and needleleaf). Data acquired in 1992-93 from NOAA's AVHRR at a 1-km spatial resolution and processed under the guidance of the International Geosphere Biosphere Programme (IGBP) were used to derive the tree cover, leaf type and leaf longevity maps. Each pixel in the layers has a value between 10 and 80 percent. These layers can be directly used as parameters in models or aggregated into more conventional land cover maps. For the latter, the product offers the flexibility to derive land cover maps based on user's requirements for a particular application. The product is intended for use in terrestrial carbon cycle models, in conjunction with other spatial data sets such as climate and soil type, to obtain more consistent and reliable estimates of carbon stocks. More information can be found at: ftp://daac.ornl.gov/data/safari2k/vegetation_wetlands/tree_cover-1km/comp/glcftree_readme.pdf.
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Related URL
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Link:
GET DATA
Description: Cosmogenic 10Be exposure ages of glacial erratics performed by John Stone, University of Washington Link: GET DATA Description: (Search string: SOAR1999WMB) Aerogeophysical data for 460x360 km2 area Link: VIEW PROJECT HOME PAGE |
Geographic Coverage
| N: -75.0 | S: -80.0 | E: -135.0 | W: -160.0 |
| Min Altitude: 300 M | Max Altitude: 1200 M |
Data Set Citation
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Dataset Originator/Creator:
Siddoway, Christine Smith
Dataset Title: Fault and fracture data Data Presentation Form: spreadsheet Online Resource: http://www.coloradocollege.edu/academics/dept/geology/ |
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Dataset Originator/Creator:
Siddoway, Christine Smith
Dataset Title: Geochronological data, 40Ar/39Ar Online Resource: http://www.coloradocollege.edu/academics/dept/geology/ |
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Dataset Originator/Creator:
Siddoway, Christine Smith
Dataset Title: Geological map compilation, Ford Ranges, Marie Byrd Land Online Resource: http://www.coloradocollege.edu/academics/dept/geology/ |
Temporal Coverage
| Start Date: 1998-11-01 |
| Stop Date: 2002-06-30 |
Paleo_Temporal_Coverage
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Paleo Start Date:
120 MA
Paleo Stop Date: 65 MA Chrono Unit: |
Location Keywords
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CONTINENT
> ANTARCTICA
> MARIE BYRD LAND > FORD RANGES
GEOGRAPHIC REGION > POLAR |
Data Resolution
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Latitude Resolution:
200 m
Longitude Resolution: 200 m Vertical Resolution: 20 m |
Science Keywords
| SOLID EARTH >TECTONICS >PLATE TECTONICS >FAULT MOVEMENT [Definition] |
| SOLID EARTH >TECTONICS >NEOTECTONICS [Definition] |
| SOLID EARTH >TECTONICS >PLATE TECTONICS >STRAIN [Definition] |
| SOLID EARTH >TECTONICS >PLATE TECTONICS [Definition] |
| SOLID EARTH >TECTONICS >PLATE TECTONICS >PLATE BOUNDARIES [Definition] |
ISO Topic Category
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GEOSCIENTIFIC INFORMATION
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Platform
| FIELD SURVEYS [Information] |
| GROUND-BASED OBSERVATIONS [Information] |
Instrument
| COMPASSES [Information] |
Project
| USAP >United States Antarctic Program [Information] |
| SOAR >Support Office for Aerogeophysical Research [Information] |
Quality
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Compass measurements are accurate within +/- 5? of bearing or inclination. Considerations are the strong variation in magnetic declination in proximity to the S magnetic pole and working conditions in the polar climate (element of human error due to high winds and cold temperatures/bulky clothing). |
Access Constraints
| Data set preparation and data release anticipated 1/1/2005 |
Keywords
| fault |
| brittle kinematic analysis |
| structure |
| tectonics |
| Brunton compasses |
Data Set Progress
| IN WORK |
Data Center
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Geology Department, Colorado College
[Information]
Data Center URL: http://www.coloradocollege.edu/academics/dept/geology/
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Personnel
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CHRISTINE
SMITH
SIDDOWAY Role: DIF AUTHOR Phone: 719-389-6717 Phone: 612-625-7332 Fax: 719-389-6910 Email: csiddoway at coloradocollege.edu Contact Address: Department of Geology Colorado College 14 E. Cache la Poudre City: Colorado Springs Province or State: CO Postal Code: 80903 Country: USA |
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ANNE
LEIGH
WHITEHEAD Role: INVESTIGATOR |
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LOUIS
SASS III Role: INVESTIGATOR |
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SETH
COWDERY Role: INVESTIGATOR |
Creation and Review Dates
DIF Creation Date:
2002-04-25
Last DIF Revision Date:
2012-03-13
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