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El Permafrost en la Peninsula Antarctica

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Identification_Information:
Citation:
Citation_Information:
Originator: Strelin, Jorge Adrian
Publication_Date: Unknown
Title: El Permafrost en la Peninsula Antarctica
Edition:
Geospatial_Data_Presentation_Form:
Series_Information:
Series_Name:
Issue_Identification:
Publication_Information:
Publication_Place:
Publisher: IAA
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Description:
Abstract:
Since 1990, the joint Argentine (Instituto Antarctico Argentino, IAA), Japanese (Institute of Low Temperature Science, ILTS), and, recently, Italian (Third University of Rome) group "Criologia" has been concerned with research on cryological and geomorphological aspects in the northern Antarctic Peninsula area. Sorted nets, circles and stripes, stone pits, ice-wedge, seasonal frost crack polygons, gelifluction lobes, ice-cored rock glaciers, protalus lobes, protalus ramparts, and stone-banked terraces are some of the most conspicuous cryogenic and periglacial features studied by our research group. One topic of the research program focuses on determining the flow regime and mechanisms of different types of rock glaciers (and protalus lobes), including the "glacier-rock glacier system", called Lachman II on James Ross Island. A more precise characterization of these morphological systems results from the determination of surface flow patterns by tracking marked blocks, more accurately referred to as fixed stations, and from data of installed local thermo-registering stations that provide precise values of air mean annual temperature, ground mean annual temperature, and geothermal gradient. A main rock glacier and an older rock glacier are morpho-dynamically distinguished. Considering the geomorphology of the landscape related to these rock glaciers, they were formed after two recessive glacier advances, which occurred at 1300 to 1000 and 200 YBP, respectively. Protalus lobes develop without relation to glaciers at the foot of scree slopes and look to be ice-cemented. Protalus ramparts are mentioned for the first time in the Antarctic Peninsula area. Their genesis is related to protalus lobe formation. Another topic we studied was related to stone-banked terraces that develop in Rink Crags, James Ross Island. Stone-banked terraces occur on a gentle slope (approximately 5 degrees) at the top of these crags (approximately 450 m above sea level), and reach maximum lengths of about 60 m and widths of about 30 m. The fronts range in height from less than 0.6 m to as much as 3.5 m. Moving rate was measured to be less than 5 cm/y. Using the geo-electrical resistivity method, the permafrost thickness was established for marine terraces and other terranes with different degalaciation ages on Seymour and James Ross islands. These data, combined with 14C isotope dating, enabled determination of the permafrost development rates of 0.01 to 0.015 m/y for the marine terraces on Seymour Island and 0.0018 to 0.0016 m/y for the marine terraces on James Ross Island. Thermo-registration devices, with sensors installed at different depths, are continually monitoring the periglacial cryosphre, allowing for the determination of the mean annual temperature gradient and the daily temperature fluctuation (with data every 2 and 4 hours), for each level, including air temperature. Three registering stations are installed (with thermic sensors at specific ground levels) in a 10 m deep drill at the highest meseta of Seymour Island, in a 2 m deep drill at the coastal environment of James Ross Island, and, in the same island, at a 1.8 m drill on the top of Rink Crags. Thermal contraction parameters and heat flow are also established for different ground levels on both islands.
Purpose:
Not Available
Supplemental_Information:
Not Available
Status:
Progress: Complete
Maintenance_and_Update_Frequency: As needed
Spatial_Domain:
Description_of_Geographic_Extent:
Bounding_Coordinates:
West_Bounding_Coordinate: -75.0
East_Bounding_Coordinate: -50.0
North_Bounding_Coordinate: -60.0
South_Bounding_Coordinate: -75.0
Keywords:
Theme:
Theme_Keyword_Thesaurus: GCMD SCIENCE PARAMETERS
Theme_Keyword_Thesaurus: GCMD PLATFORM
Theme_Keyword_Thesaurus: GCMD INSTRUMENT
Theme_Keyword_Thesaurus: PROJECT
Theme_Keyword_Thesaurus: ANCILLARY KEYWORDS
Theme_Keyword_Thesaurus: ISO TOPIC CATEGORY
Theme_Keyword: EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC TEMPERATURE > SURFACE TEMPERATURE > AIR TEMPERATURE
Theme_Keyword: EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC TEMPERATURE > SURFACE TEMPERATURE
Theme_Keyword: EARTH SCIENCE > CRYOSPHERE > GLACIERS/ICE SHEETS > GLACIERS > ROCK GLACIER
Theme_Keyword: EARTH SCIENCE > CRYOSPHERE > SNOW/ICE > ICE EXTENT
Theme_Keyword: EARTH SCIENCE > CRYOSPHERE > SNOW/ICE > PERMAFROST
Theme_Keyword: EARTH SCIENCE > TERRESTRIAL HYDROSPHERE > SNOW/ICE > PERMAFROST
Theme_Keyword: EARTH SCIENCE > LAND SURFACE > SURFACE THERMAL PROPERTIES > LAND SURFACE TEMPERATURE
Theme_Keyword: EARTH SCIENCE > LAND SURFACE > SOILS > PERMAFROST
Theme_Keyword: EARTH SCIENCE > SOLID EARTH > GEOTHERMAL DYNAMICS > GEOTHERMAL TEMPERATURE
Theme_Keyword: EARTH SCIENCE > SOLID EARTH > ROCKS/MINERALS/CRYSTALS > BEDROCK LITHOLOGY
Theme_Keyword: EARTH SCIENCE > SOLID EARTH > ROCKS/MINERALS/CRYSTALS > SEDIMENTARY ROCKS
Theme_Keyword: EARTH SCIENCE > CRYOSPHERE > FROZEN GROUND > PERMAFROST
Theme_Keyword: EARTH SCIENCE > LAND SURFACE > FROZEN GROUND > PERMAFROST
Theme_Keyword: GROUND-BASED OBSERVATIONS
Theme_Keyword: ICE AUGERS
Theme_Keyword: ROCK CORERS
Theme_Keyword: SOIL SAMPLER
Theme_Keyword: TEMPERATURE PROBES
Theme_Keyword: THERMOMETERS
Theme_Keyword: RECURSOS MINERALES
Theme_Keyword: 14c Isotope Dating
Theme_Keyword: Antarctic Peninsula
Theme_Keyword: Bedrock
Theme_Keyword: Cadic
Theme_Keyword: Carbon-14 Dating
Theme_Keyword: Centro Austral De Investigaciones Cientificas
Theme_Keyword: Climate
Theme_Keyword: Cryology
Theme_Keyword: Flow
Theme_Keyword: Frost Crack Polygons
Theme_Keyword: Gelifluction Lobes
Theme_Keyword: Geo-electrical Resistivity
Theme_Keyword: Geomorphology
Theme_Keyword: Geothermal Gradient
Theme_Keyword: Ice-wedge
Theme_Keyword: Ilts
Theme_Keyword: Institute Of Low Temperature Science
Theme_Keyword: James Ross Island
Theme_Keyword: Pattern Ground
Theme_Keyword: Periglacial Environment
Theme_Keyword: Periglacier
Theme_Keyword: Permafrost
Theme_Keyword: Protalus Lobes
Theme_Keyword: Protalus Ramparts
Theme_Keyword: Quaternary
Theme_Keyword: Rink Crags
Theme_Keyword: Rock Glacier
Theme_Keyword: Scree Slopes
Theme_Keyword: Seymour Island
Theme_Keyword: Soil
Theme_Keyword: Sorted Nets
Theme_Keyword: Stone Pits
Theme_Keyword: Stone-banked Terraces
Theme_Keyword: Tecera Universidad De Roma
Theme_Keyword: Thermo-registration Devices
Theme_Keyword: Third University Of Rome
Theme_Keyword: CLIMATOLOGY/METEOROLOGY/ATMOSPHERE
Theme_Keyword: GEOSCIENTIFIC INFORMATION
Theme_Keyword: INLAND WATERS
Place:
Place_Keyword_Thesaurus: GCMD
Place_Keyword: CONTINENT > ANTARCTICA
Place_Keyword: GEOGRAPHIC REGION > POLAR
Access_Constraints: Not Available
Use_Constraints:
Not Available
Point_of_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: JORGE ADRIAN STRELIN
Contact_Position: INVESTIGATOR
Contact_Position: TECHNICAL CONTACT
Contact_Address:
Address_Type: Mailing and Physical Address
Address: Centro Austral de Investigaciones Cientificas (CADIC)
Address: Avda. Malvinas Argentinas s/n. - C.C.92
Address: (V9410BFD) Ushuaia
City: Ushuaia
State_or_Province: Tierra del Fuego
Country: Argentina
Contact_Voice_Telephone: 54-2901-422310/4-
Contact_Facsimile_Telephone: 54-2901-430644
Contact_Electronic_Mail_Address: jstrelin@yahoo.com.ar, jstrelin@satlink.com
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Data_Quality_Information:
Attribute_Accuracy:
Attribute_Accuracy_Report:
Not Available
Logical_Consistency_Report:
Not Available
Completeness_Report:
Not Available
Lineage:
Process_Step:
Process_Description:
Not Available
Process_Date: Unknown
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Spatial_Reference_Information:
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Distribution_Information:
Distributor:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: AR/CDA > Centro de Datos Antarticos, Argentina
Contact_Person: JORGE ADRIAN STRELIN
Contact_Position: DATA CENTER CONTACT
Contact_Address:
Address_Type: Mailing and Physical Address
Address: Centro Austral de Investigaciones Cientificas (CADIC)
Address: Avda. Malvinas Argentinas s/n. - C.C.92
Address: (V9410BFD) Ushuaia
City: Ushuaia
State_or_Province: Tierra del Fuego
Country: Argentina
Contact_Voice_Telephone: 54-2901-422310/4-
Contact_Facsimile_Telephone: 54-2901-430644
Contact_Electronic_Mail_Address: jstrelin@yahoo.com.ar, jstrelin@satlink.com
Resource_Description: IAA-PRE.DIF-001 > El Permafrost en la Peninsula Antarctica
Distribution_Liability:
Not Available
Standard_Order_Process:
Digital_Form:
Digital_Transfer_Information:
Digital_Transfer_Option:
Online_Option:
Computer_Contact_Information:
Network_Address:
Network_Resource_Name:
http://www.iaa.gov.ar/
Access_Instructions:
DATA CENTER URL
Digital_Transfer_Option:
Fees: Not Available
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Metadata_Reference_Information:
Metadata_Date: 19991216
Metadata_Review_Date: 20160202
Metadata_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: CELIA ELBA IZQUIERDO
Contact_Position: DIF AUTHOR
Contact_Address:
Address_Type: Mailing and Physical Address
Address: Centro de Datos Antarticos
Address: Direccion Nacional del Antartico
Address: Instituto Antartico Argentino
Address: Cerrito 1248
City: Capital Federal
Postal_Code: C1010AAZ
Country: ARGENTINA
Contact_Voice_Telephone: 54-11-4812-2086
Contact_Facsimile_Telephone: 54-11-4812-2086
Contact_Electronic_Mail_Address: celeiz_antar@hotmail.com
Contact_Electronic_Mail_Address: celeiz@dna.gov.ar
Contact_Electronic_Mail_Address: cda@dna.gov.ar
Metadata_Standard_Name: FGDC Content Standards for Digital Geospatial Metadata
Metadata_Standard_Version: FGDC-STD-001-1998
Metadata_Time_Convention: local time
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