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ITALIAN ANTARCTIC NATIONAL RESEARCH PROGRAM P.N.R.A. PERMAFROST AND CLIMATE CHANGE IN ANTARCTICA P.I. Prof. Mauro Gugli PowerPoint Presentation
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ITALIAN ANTARCTIC NATIONAL RESEARCH PROGRAM P.N.R.A. PERMAFROST AND CLIMATE CHANGE IN ANTARCTICA P.I. Prof. Mauro Gugli - PowerPoint PPT Presentation


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ITALIAN ANTARCTIC NATIONAL RESEARCH PROGRAM P.N.R.A. PERMAFROST AND CLIMATE CHANGE IN ANTARCTICA P.I. Prof. Mauro Guglielmin Insubria University - Varese, Italy. Permafrost and active layer Monitoring

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slide1

ITALIAN ANTARCTIC NATIONAL RESEARCH PROGRAM

P.N.R.A.

PERMAFROST AND CLIMATE CHANGE IN ANTARCTICA

P.I. Prof. Mauro Guglielmin

Insubria University - Varese, Italy

slide2
Permafrost and active layer Monitoring
  • Research Team: P.I. Prof. Mauro Guglielmin, Fabio Bajo, (DBSF, Insubria University, Varese), Francesco Dramis (DSG, Roma3 University) Andrea Strini (DSG,Milan University).
  • Project, installation, maintainance, management of all the permafrost and active layer stations and of the Calm Grid. Data archive and elaboration.
  • International agreement with B.A.S. (Cynan Ellis Evans, Roger Worland), Landcare Research ltd and Waikato University (Aislabie J., Balks M.), DNA-CADIC (National Direct. of the Ant. and Arg. Ant. Inst.,Centro Austral Inv. Cient. , Strelin).

Signy Island

Permafrost station and Calm Grid

Oasi (Victoria Land)

new borehole (30.3 m)

slide3

1

2

The drilling facilities include two equipment for:

  • 1) deep borehole (up to 30 m)
  • 2) shallow borehole (up to 7-8 m).
slide4

Permafrost and active layer monitoring stations

Future IPY planned Permafrost and active layer monitoring stations

Signy

Jubany

Anchorage Island

Cape Ross

Cape King

In red the stations planned for the future. P.I. = 1 Guglielmin M.; 2 = Guglielmin M., Worland R (BAS); 3 = Guglielmin M., Balks M., Aislabie J. ; 4 = Guglielmin M., Strelin J. (DNA); 5 = Guglielmin M., Strelin J., Sone T. Mori J.; C: Continous monitoring; R: manual monitoring; * Calm Grid (100X100 m); ** Calm Grid (40x40m)

slide5

Permafrost study includes geophysical investigations (electrical surveys, ground probing radar) and coring of frozen sediments.

Laboratory activities: chemical, isotopical, cristallographical, batteriological analyses of soil and ground ice.

These tasks operating trough the cooperation also with other italian and foregneir researchers.

Sampling Frost blisters

Main goals of these activities are:

Characterization of ground ice in different geomorphological features (rock glacier, debris covered glacier)

Permafrost mapping

Study of permafrost hydrology (ice blisters; talik)

Analyses of permafrost ground ecosystem (yeasts, bacteria, fungi).

Detection of subsea permafrost

Tethys Bay (MZS): subsea permafrost found on the sea floor

Megan Balks shows the longest permafrost core collected at Bull Pass

slide6

ICE WEDGES ANALYSES

RESEARCH TEAM

P.I. Prof.RaffiRossana,Sega Simone

Department of Earth Science – “La Sapienza” University – Roma, Italy

Stenni Barbara, Flora Onelio, Genoni Laura

Department of Geological, Environmental and Marine Sciences - University of

Trieste, Italy

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MAIN RESEARCH GOALS

  • Definition:
  • of the ice-wedge thermal regime
  • of the processes occuring in the formation of
  • ice-wedges ice
slide8

INVESTIGATED AREA

From Cape HallettPeninsulatoRicker Hills

From Ross SeaCoasttoHelliwell Hills (Rennick Glacier)

slide9

EXCAVATED ICE-WEDGE POLYGON SITES

  • 45 IceWedges
  • 4 SandWedges
  • FIELD DATA COLLECTED
  • ActiveLayerDepth
  • Permafrost Table Depth
  • Ground Surface Temperature
  • Icewedge temperature profile
  • Air Temperature
  • Air Humidity
  • Incoming and reflectedsolarradiation
  • Soil color byMunsellSoil Color Chart
  • Icewedgestudyincludeslaboratoryactivities: cristallographical, isotopical, chemicalanalysesofice-wedgeice.
slide10

3 ICE-WEDGE THERMAL MONITORING STATIONS

  • Data loggers installed at three ice-wedge polygon sites along a longitudinal transect:
  • # 2 Testor 171-4 with 4 NTC (acc. +/- 0.2°C);
  • # 1 Campbell CR1000-XT with 4 PT100 (acc. +/- 0.1°C).
  • In each site the following temperatures are recorded in continuous since January 2004 :
  • - Air
  • Ground surface (-2 cm)
  • Ice-wedge top
  • Ice-wedge bottom

“Rossana”

Boomerang Glacier

74° 30’ 13’’ S

163° 50’ 10’’ E

874 m a. s. l.

“Eleonora”

Mount Jackman

72° 23’ 07’’ S

163° 10’ 49’’ E

1269 m a. s. l.

“Viki”

Baker Rocks

74° 12’ 27’’ S

164° 50’ 01’’ E

11 m a. s. l.

slide11

Terrestrial Ecology

  • Research Team: P.I. Nicoletta Cannone (Ferrara University),
  • Renato Gerdol (Ferrara University); Chiara Siffi (Ferrara University); Rosanna Piervittori (Turin University), Sergio Favero Longo (Turin University)
  • Main research goals:
  • - Selection of the most representative vegetation communities and sites to set up a network of permanent plots for the long term monitoring along two latitudinal transects at: 1) Victoria Land (Continental Antarctica) and 2) Tierra del Fuego-Antarctic Peninsula
  • Assessment of climate change impacts on terrestrial ecosystems through the monitoring of permanent plots and the detection of vegetation changes;
  • CO2 fluxes monitoring, soil changes within the monitoring network sites and plots
  • International Cooperations:
  • British Antarctic Survey;
  • Latitudinal Gradient Project;
  • SCAR- EBA (Evolution and Biodiversity in Antarctica)
slide12

Victoria Land Monitoring Network

  • - Survey of 26 study sites across 5 degrees of latitude (72°S – 77°S) along two main transects (1-coastal transect, 2-slope inland transect)
  • - Selection of 13 sites, installation and description of 19 permanent plots for the long term monitoring
  • Assessment of the influence of the latitudinal gradient on biodiversity patterns along the two transects;
  • Description of soil characteristics of the permanent plots
  • Monitoring of the ground surface temperature under different vegetation types

CH Cape Hallett, RR Redcastle Ridge, CC Crater Cirque, CK Cape King, AI Apostrophe Island, CP Cape Phillips, EP Edmonson Point, CW Cape Washington, GO Gondwana, MK Mount Keinath, BC Boulderclay, II Inexpressible Island, CS Cape Sastrugi, SC Simpson Crags, TF Tarn Flat, LI Lamplugh Island, PI Prior Island, SN Starr Nunatak, CR Cape Ross, GI Gregory Island, KP Kar Plateau, FP Finger Point, DI Dunlop Island, MP Marble Point, FL Fryxell Lake