Lidar Elevation Data in the McMurdo Dry Valleys and Ross Island

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Lidar Elevation Data in the McMurdo Dry Valleys
and Ross Island

• Cheryl Hallam

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Introduction

• Collaboration between USGS, NSF and NASA
• NASA link ICESat Calibration Validation
• Data Collected December 2001
• ATM2 on a Twin Otter
• Vertical accuracy 10-25 cm
• Point spacing 1-5 m

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Research Links

• Ohio State University Terry Wilson
• University of Washington B. Hallett
• Portland State Andrew Fountain
• LTER

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Index for DEMs
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Index map for lidar coverage
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Early Looks at the Data
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Aerial photographs - 1993
Shaded Relief from 1-meter LIDAR DEM
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Shaded Relief of the Base Camp area in Beacon
Valley from 1-meter DEM see Red dot at GPS
location of camp site
Digital Photograph taken at same time LIDAR was
collected see Scott tents at camp site
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Beacon Valley
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Lake Bonney and the end of Taylor Galcier
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The highest resolution data include the shaded
relief representations generated from the lidar
elevation data collected in Dec. 2001 This is a
portion of the Beacon Valley showing its
patterned ground.
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This view shows the terrain on the shore of Lake
Bonney in the McMurdo Dry Valleys. It also shows
some of the systematic errors left by the sensor.
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This high-resolution view shows a road between
McMurdo Station and Scott Base.
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Geologic features on Nussbaum Riegel can be seen
in this shaded relief of the area from the lidar
database.
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Beacon Valley Terrain
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Beacon contours (10m) generated from the lidar
data
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Lower end of Beacon Valley
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Labyrinth contours (10m)
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Labyrinth contours (10m) over shaded relief
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Taylor Valley (10m)
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Taylor Glacier (10m)
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Lake Bonney (10m)
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Taylor Valley (10m)
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Nussbaum Riegel (10m)
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Nussbaum Riegel Profiles
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Taylor Valley (10m) Lake Hoare and Canada
Glacier
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Taylor Valley (10m)Lake Fryxell
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Taylor Valley (10m) Commonwealth Glacier and
New Harbor
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Barwick Valley contours (10m)
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Barwick Valley contours (10m) over shaded relief
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Mount Erebus Crater shaded relief
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Mount Erebus Crater Profiles
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Mount Erebus contours (10m)
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Mount Erebus contours (2m)
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Mount Erebus contours (10m) over shaded relief
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McMurdo Station
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Mt. Discovery contours(20m)
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Mt. Discovery profile
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Mt. Morning contours(10m)
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Mt. Morning contours(10m)
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Mt. Morning contours(10m)
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Mt. Morning contours(10m) over shaded relief
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Index for DEMs
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• From this page http//usarc.usgs.gov/antarctic_atl
  as/ users can
• View the index map for the high-resolution DEMs
  from the lidar data

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• From this page http//usarc.usgs.gov/antarctic_atl
  as/ users can
• View the index map for the high-resolution DEMs
  from the lidar data
• Download low resolution shaded relief
  representations of the data

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• From this page http//usarc.usgs.gov/antarctic_atl
  as/ users can
• View the index map for the high-resolution DEMs
  from the lidar data
• Download low resolution shaded relief
  representations of the data
• Download the DEMs that cover their area of
  interest

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• From this page http//usarc.usgs.gov/antarctic_atl
  as/ users can
• View the index map for the high-resolution DEMs
  from the lidar data
• Download low resolution shaded relief
  representations of the data
• Download the DEMs that cover their area of
  interest
• View 10-meter de-classified satellite image data
  and its projection information

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• From this page http//usarc.usgs.gov/antarctic_atl
  as/ users can
• View the index map for the high-resolution DEMs
  from the lidar data
• Download low resolution shaded relief
  representations of the data
• Download the DEMs that cover their area of
  interest
• View 10-meter de-classified satellite image data
  and its projection information
• Download the satellite data and/or its DEM layer
  at 30m or 100m

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Key Addresses

• Atlas Version 2 and lidar/de-classified image
  data download page
• http//usarc.usgs.gov/antarctic_atlas/
• Atlas version 3
• http//rns2k0145.er.usgs.gov/antarctic_atlas/mapma
  ker.htm
• Map and Feature Services Summary document
• http//rns2k0145.er.usgs.gov/services-pub.htm
• Map Services Viewer
• http//rns2k0145.er.usgs.gov/viewer/Generic

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End