CDA_AR-ANTARCTIC PERMAFROST AND CLIMATE CHANGUE-PICTO 36155-2005

Federal Geographic Data Committee (FGDC) Metadata:


Identification_Information:
Citation:
Citation_Information:
Originator: YRMOLIN, EUGENIO
Publication_Date: Unknown
Title: CDA_AR-ANTARCTIC PERMAFROST AND CLIMATE CHANGUE-PICTO 36155-2005
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Description:
Abstract:
ENGLISH The project is aimed at enhanced knowledge of the present morphology and structure of Antarctic permafrost and the interpretation of the permafrost evolution and the cryogenic processes and phenomena revealed in certain periglacial conditions in the Antarctic Peninsula under climate and glacial changes. These are some of the few sites in Antarctica where ice-free territory exists with the presence of frozen quaternary deposits on the permafrost continuous zone. Beginning with the early Holocene, the climatic conditions were favourable for the existence of permafrost, if the surface is not covered by glaciers. The development of the Antarctic permafrost on the ice-free areas, the dynamics of the geocryogenic processes and the ice ground formation are conditioned by climatic parameters and different ground types related with surface hydrographic systems and phreatic aquifer on the periglacial zone. According to conditions of Quaternary history permafrost is divided into two cryoformations: epigenetic and syngenetic. Each unit was characterized by different cryogenic processes, formation of ground ice in the permafrost and active layer, conditions of bedding and occurrence of buried constitutional ground ice types. The different climatic conditions determine the cryogenic asymmetry of the Antarctic Peninsula with respect to the continuous permafrost on the north-east side and the discontinuous permafrost on the west sector. At present all regions of Antarctic Peninsula has been subject to a significant atmospheric warming, with 2.5 °C on the eastern and northern parts and also 4 °C on the western part over the last 50 years. SPANISH Este proyecto se propone ampliar el conocimiento de la morfología en la estructura del permafrost en Antártica. Se busca realizar una interpretación posible de la evolución de los procesos criogénicos en áreas periglaciares bajo las nuevas circunstancias de cambio climático en la Península Antártica. Esta última constituye una de los pocos sitios del continente antártico con áreas libres de hielo y depósitos cuaternarios zonas de permafrost continuo. A partir del Holoceno inferior las condiciones climáticas fueron favorables para el desarrollo del permafrost en áreas donde la superficie no se encuentra cubierta de glaciares. El desarrollo del permafrost en Antártica sobre las zonas libres de hielo, la dinámica de los procesos geocriológicos y la formación de hielos enterrados esta condicionada por los parámetros climáticos y los diferentes tipos de sustrato en relación con los sistemas hidrológicos e hidrogeológicos en las zonas periglaciales. En función de las características de la evolución del permafrost en el cuartario puede dividirse en dos crioformaciones: epigenético y singenético. Cada unidad esta caracterizada por diferentes procesos criológicos relacionados con la formación de hielo en el permafrost, el desarrollo de la capa activa y/o las condiciones de ocurrencia de diferente tipo de hielo en el subsuelo. Las diferentes condiciones climáticas determinan la asimetría criogénica en la Península Antártica con respecto a las áreas de permafrost continuo en el norte y el este y discontinuo en el oeste. Hasta el presente y desde los últimos 50 años toda la región norte de la Península antártica ha estado sujeta a un calentamiento atmosférico significativo de 2,5°C en la región este y norte y mas de de 4°C en el oeste de la misma.
Purpose:
Not Available
Supplemental_Information:
Not Available
Status:
Progress: In Work
Maintenance_and_Update_Frequency: As needed
Spatial_Domain:
Description_of_Geographic_Extent:
Bounding_Coordinates:
West_Bounding_Coordinate: Not Available
East_Bounding_Coordinate: Not Available
North_Bounding_Coordinate: Not Available
South_Bounding_Coordinate: Not Available
Keywords:
Theme:
Theme_Keyword_Thesaurus: GCMD SCIENCE PARAMETERS
Theme_Keyword_Thesaurus: GCMD PLATFORM
Theme_Keyword_Thesaurus: GCMD INSTRUMENT
Theme_Keyword_Thesaurus: ANCILLARY KEYWORDS
Theme_Keyword_Thesaurus: ISO TOPIC CATEGORY
Theme_Keyword: EARTH SCIENCE > CRYOSPHERE > FROZEN GROUND > GROUND ICE
Theme_Keyword: EARTH SCIENCE > CRYOSPHERE > FROZEN GROUND > PERMAFROST
Theme_Keyword: EARTH SCIENCE > CRYOSPHERE > SNOW/ICE > PERMAFROST
Theme_Keyword: EARTH SCIENCE > LAND SURFACE > FROZEN GROUND > GROUND ICE
Theme_Keyword: EARTH SCIENCE > LAND SURFACE > FROZEN GROUND > PERMAFROST
Theme_Keyword: EARTH SCIENCE > LAND SURFACE > GEOMORPHIC LANDFORMS/PROCESSES > GLACIAL PROCESSES
Theme_Keyword: FIELD SURVEYS
Theme_Keyword: GROUND STATIONS
Theme_Keyword: LABORATORY
Theme_Keyword: FIELD INVESTIGATION
Theme_Keyword: GPS > GLOBAL POSITIONING SYSTEM
Theme_Keyword: Hydrogeology
Theme_Keyword: Climatic Change
Theme_Keyword: Geocriología
Theme_Keyword: Cambio Climático
Theme_Keyword: Hidrogeología
Theme_Keyword: BIOTA
Theme_Keyword: CLIMATOLOGY/METEOROLOGY/ATMOSPHERE
Place:
Place_Keyword_Thesaurus: GCMD
Place_Keyword: CONTINENT > ANTARCTICA > ANTARCTIC PENINSULA
Place_Keyword: GEOGRAPHIC REGION > POLAR
Access_Constraints: Not Available
Use_Constraints:
Not Available
Point_of_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: EUGENIO YERMOLIN
Contact_Position: INVESTIGATOR
Contact_Address:
Address_Type: Mailing and Physical Address
Address: Departamento Ciencias de la Tierra
Address: Division Glaciologia
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_Voice_Telephone: 54 11 4816 6821
Contact_Facsimile_Telephone: 54 11 4816 6821
Contact_Electronic_Mail_Address: glacio@dna.gov.ar
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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: CELIA DIEGO ELBA RAFAEL IZQUIERDO GOMEZ IZQUIERDO
Contact_Position: DATA CENTER CONTACT
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_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_Voice_Telephone: + 54 11 4815 4064
Contact_Facsimile_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
Contact_Electronic_Mail_Address: diegogi@dna.gov.ar
Resource_Description: CDA_AR-ANTARCTIC PERMAFROST AND CLIMATE CHANGUE-PICTO 36155-2005
Distribution_Liability:
Not Available
Standard_Order_Process:
Digital_Form:
Digital_Transfer_Information:
Format_Name: Not Available
Digital_Transfer_Option:
Online_Option:
Computer_Contact_Information:
Network_Address:
Network_Resource_Name:
http://www.dna.gov.ar/
Access_Instructions:
DATA CENTER URL
Digital_Transfer_Option:
Fees: Not Available
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Metadata_Reference_Information:
Metadata_Date: 20090726
Metadata_Review_Date: 20120710
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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