TemperateReefBase Geonetwork Catalogue
Satellite Glaciology - Satellite and remote sensing methods
Metadata record for data from ASAC Project 291
See the link below for public details on this project.
From the abstracts of the referenced papers:
Ground surveys of the ice sheet in Wilkes Land, Antarctica, have been made on oversnow traverses operating out of Casey. Data collected include surface elevation, accumulation rate, snow temperature, and physical surveys, the data are mostly restricted to line profiles. In some regions, aerial surveys of surface topology have been made over a grid network. Satellite imagery and remote sensing are two means of extrapolating the results from measurements along lines to an areal presentation. They are also the only source of data over large areas of the continent. Landsat images in the visible and near infra-red wavelengths clearly depict many of the large- and small-scale features of the surface. The intensity of the reflected radiation varies with the aspect and magnitude of the surface slope to reveal the surface topography. The multi-channel nature of the Landsat data are exploited to distinguish between different surface types through their different spectral signatures, e.g. bare ice, glaze, snow, etc. Additional information on surface type can be gained at a coarser scale from other satellite-borne sensors such as the ESMR, SMMR, etc. Textural enhancement of the Landsat images reveals the surface micro-relief. Features in the enhanced images are compared to ground-truth data from the traverse surveys to produce a classification of the surface types across the images and to determine the magnitude of the surface topography and micro-relief observed. The images can then be used to monitor changes over time.
Landsat imagery of the Antarctic ice sheet and glaciers exhibit features that move with the ice and others that are fixed in space. Two images covering the same area but acquired at different times are compared to obtain the displacement of features. Where the time lapse is large, the displacement of obvious features can be scaled from photographic prints. When the two images are co-registered finer features and displacements can be resolved to give greater detail.
Remote sensing techniques can be used to investigate the dynamics and surface characteristics of the Antarctic ice sheet and its outlet glaciers. This paper describes a methodology developed to map glacial movement velocities from LANDSAT MSS data, together with an assessment of the accuracy achieved. The velocities are derived by using digital image processing to register two temporally separated LANDSAT images of the Denman glacier and Shackleton Ice Shelf region. A derived image map is compared with existing maps of the region to substantiate the measured velocities. The velocity estimates from this study were found to correspond closely with ground-based measurements in the study area.
Simple
Identification info
- Alternate title
- Satellite Glaciology - Satellite and remote sensing methods
- Date (Publication)
- 2000-07-25
- Edition
- 1
Originator
Publisher
Principal investigator
Collaborator
- Name
- CAASM Metadata
- Status
- Completed
Custodian
- Topic category
-
- Climatology, meteorology, atmosphere
- Geoscientific information
- Inland waters
- Oceans
Extent
))
Extent
- Description
- Temporal Coverage
Temporal extent
- TimePeriod
- 1986-09-30 1995-03-31
- Title
- Comparison of surface characteristics of the Antarctic ice sheet with satellite observations (Abstract).
- Date (Publication)
- 1987
- Citation identifier
- 9
Author
- Name
- Annals of Glaciology
- Page
- 253
- Title
- Measurement of Antarctic glacier movements using Landsat images
- Date (Publication)
- 1987
Author
Publisher
- Name
- Proceedings of the 4th Australasian Remote Sensing Conference
- Page
- 842
- Title
- Benefits of a satellite receiving station in AAT to Australia's Antarctic glaciological research.
- Date (Publication)
- 1986
Author
- Name
- Reception of Remote Sensing Satellites in Australian Antarctic Territory - A Technical Feasibility Study
- Page
- 48-57
- Title
- Measurement of Antarctic glacier movement using Landsat MSS data.
- Date (Publication)
- 1988
- Citation identifier
- 2
Author
- Name
- Technical Papers of the Proceedings of 7th Australian Cartographic Conference
- Page
- 752-762
- Other citation details
- August 22-26 1988, Sydney, Australia
- NASA/GCMD Earth Science Keywords
-
- EARTH SCIENCE > ATMOSPHERE > PRECIPITATION > SOLID PRECIPITATION > SNOW
- EARTH SCIENCE > CRYOSPHERE > GLACIERS/ICE SHEETS > GLACIERS
- EARTH SCIENCE > CRYOSPHERE > GLACIERS/ICE SHEETS > ICE SHEETS
- EARTH SCIENCE > CRYOSPHERE > SNOW/ICE > SNOW/ICE TEMPERATURE
- EARTH SCIENCE > CRYOSPHERE > GLACIERS/ICE SHEETS
- EARTH SCIENCE > CRYOSPHERE > GLACIERS/ICE SHEETS > ABLATION ZONES/ACCUMULATION ZONES
- EARTH SCIENCE > CRYOSPHERE > GLACIERS/ICE SHEETS > GLACIER ELEVATION/ICE SHEET ELEVATION
- EARTH SCIENCE > CRYOSPHERE > GLACIERS/ICE SHEETS > GLACIER MOTION/ICE SHEET MOTION
- Keywords
-
- Digital image processing
- Displacement of features
- NASA/GCMD Earth Science Keywords
-
- LANDSAT
- SATELLITES
- NASA/GCMD Earth Science Keywords
-
- AMD/AU
- CEOS
- AMD
- ACE/CRC
- NASA/GCMD Earth Science Keywords
-
- CONTINENT > ANTARCTICA
- GEOGRAPHIC REGION > POLAR
Resource constraints
- Use limitation
- This metadata record is publicly available.
Resource constraints
- Access constraints
- licence
- Other constraints
- PDF copies of the referenced papers are available for download from the provided URL to AAD Staff Only.
Resource constraints
- File type
- Portable Network Graphic
- Title
- Attribution 4.0 International (CC BY 4.0)
- Website
-
https://creativecommons.org/licenses/by/4.0/legalcode
Legal code for Creative Commons by Attribution 4.0 International license
- Use constraints
- licence
- Other constraints
- This data set conforms to the CCBY Attribution License (http://creativecommons.org/licenses/by/4.0/). Please follow instructions listed in the citation reference provided at http://data.aad.gov.au/aadc/metadata/citation.cfm?entry_id=ASAC_291 when using these data.
- Language
- English
- Character encoding
- UTF8
Distribution Information
Distributor
Distributor
Distributor
- Fees
- free
- Units of distribution
- MB
- Transfer size
- 3.9
- Distribution format
-
- OnLine resource
-
PROJECT HOME PAGE
Public information for ASAC project 291
- OnLine resource
-
VIEW RELATED INFORMATION
Download Point for the data - pdf copies of some of the referenced papers - AAD Staff Only
- OnLine resource
-
VIEW RELATED INFORMATION
Citation reference for this metadata record and dataset
Resource lineage
- Statement
- Values provided in temporal and spatial coverage are approximate only. This record was created by staff at the Australian Antarctic Data Centre. Guarantees cannot be made for its quality or accuracy.
- Hierarchy level
- Dataset
- Maintenance and update frequency
- As needed
- Maintenance note
- This record was created by staff at the Australian Antarctic Data Centre. Guarantees cannot be made for its quality or accuracy. 2010-06-24 - record updated by Dave Connell to correct a broken URL. 2010-07-20 - record updated by Dave Connell to change URL Content Type. 2016-08-26 - record updated by Dave Connell - basic updates.
Metadata
- Metadata identifier
- string/ASAC_291
- Language
- English
- Character encoding
- UTF8
Author
Sponsor
Owner
Type of resource
- Resource scope
- Dataset
Alternative metadata reference
- Title
- gov.nasa.gsfc.gcmd
- Citation identifier
- 3a445e30-775b-49b6-b725-7b717abc93dc
Alternative metadata reference
- Title
- gov.nasa.gsfc.gcmd
- Date (Last Revision)
- 2015-11-29T18:40:53
Identifier
- Description
- metadata.extraction_date
Alternative metadata reference
- Title
- gov.nasa.gsfc.gcmd
- Citation identifier
- 8.6
- Metadata linkage
-
http://data.aad.gov.au/metadata/records/ASAC_291
Point of truth for the metadata record
- Date info (Creation)
- 2000-07-25T00:00:00
- Date info (Last Update)
- 2017-04-26
Metadata standard
- Title
- ISO 19115-3
- Edition
- 2014
- Other citation details
- Version 1
- Title
- DIF to ISO 19115-1 Profile
Overviews
Spatial extent
Provided by
