The year 2009 has been important for Portuguese permafrost research and contributed to the consolidation of research, funding and critical mass. Activities focused on three main subjects: i) Antarctic permafrost and active layer dynamics, led by the Centre for Geographical Studies, University of Lisbon (CEG-UL); ii) Chemistry of Arctic permafrost by IPIMAR; iii) Earth-Mars analogues by CERENA - Instituto Superior Técnico, UTL. The CEG-UL is leading the FCT-funded project PERMANTAR in Livingston (LI) and Deception (DI) Islands (Antarctic Peninsula region), which also involves the Centre of Geophysics of the University of Lisbon and Centre of Geophysics of Évora. The project includes also the universities of Alcalá (Spain) and Buenos Aires (Argentina), and the Bulgarian Antarctic Institute. PERMANTAR collaborates closely with the Spanish project PERMAMODEL-IPY. Main activities focused in the the installation and upgrading of permafrost and periglacial processes monitoring sites: i) a new 8 m borehole in LI, ii) three new 4-5m boreholes (collaboration Russian Academy of Sciences) in DI, iii) new CALM-S sites in DI and LI, iv) a meteorological station in LI, v) solifluction, thermokarst and rockglaciers monitoring sites, vi) time-lapse cameras, vii) year-round monitoring with resistivimeter with datalogger in DI, viii) electrical resistivity tomography surveying in LI, and ix) n-factor monitoring sites in DI. Master theses on Antarctic permafrost have been presented by A. Trindade and R. Melo (http://www.antecc.org). Education and outreach activities have been organized, including talks in schools, public lectures and a permafrost film “Permafrost! Polar science at 62ºS” for classroom activities. It will be freely available in DVD to schools and open-access in the Internet. The CEG-UL team continued the scientific coordination of the grant program New Generation of Polar Scientists funded by Caixa Carbono Zero (CGD). This program involves full-time funding of two students on permafrost research in a total of six grants in polar science. IPIMAR's research on permafrost was conducted in Umuijaq, Northen Québec. The main objectives are studying carbon and contaminant chemistry in thermokarst lakes and their hydrological impact in rivers, sea and snow pack. Measurements of biogas fluxes and sampling of water, ice, snow and sediments for analysis were conducted. Umuijaq is an area of carbon-poor permafrost which contrasts with the results obtained in 2008 in a carbon-rich permafrost area. This study contributes to a better understanding of the impacts of permafrost thaw in the carbon and trace element contaminants cycles. CERENA continued researching automated mapping and characterization of polygonal networks on Mars. Research focused on the detailed analysis of the NASA Phoenix landing region (around 68º N), which are extensive plains largely occupied by small-scale polygonal terrains. These were difficult to perceive in previous imagery but are now unveiled by the HiRISE camera onboard Mars Reconnaissance Orbiter (30 cm/pixel). The huge number of small polygons (diameter around 4 m) demonstrates the necessity of using automated approaches allowing for a detailed mapping of these extensive networks. This will contribute to gather data to help probe into the most widely accepted genetical models, namely thermal contraction of permafrost. Gonçalo Vieira, João Canário and Pedro Pina Frozen Ground 2007 03/17/2008
 A revista Frozen Ground de 2007 com as actividades da International Permafrost Association encontra-se já disponível para download.   O GIPCA esteve envolvido na organização da Cerimónia de Abertura do Ano Polar Internacional 2007-08, evento que decorreu no Pavilhão do Conhecimento no dia 28 de Fevereiro de 2007. The research group on Antarctic permafrost at the Centre for Geographical Studies (CEG-University of Lisbon) continued in 2007 the activities in the South Shetlands (Antarctic Peninsula region) under the coordination of Gonçalo Vieira. The collaboration within the project PERMAMODEL with the University of Alcalá de Henares (Spain) included field work in Livingston and Deception islands with the maintenance and installation of CALM-S sites: Crater Lake in Deception Island; and Reina Sofia Hill and Ramos Col in Livingston Island. Studies on coastal rock platform erosion by brash have started in both islands, with the installation of a series of transverse micro-erosion meter monitoring sites by Mário Neves that participated in this campaign. Alexandre Trindade participated in the Bulgarian Antarctic Campaign in Livingston island and installed a CALM-S site in the vicinity of the Bulgarian station.  From 25 to 27 June the 1st Iberian Conference of the International Permafrost Association was organized by the CEG-UL in Guarda (Central Portugal). The meeting included oral presentations, a poster session and a field-trip to the Serra da Estrela. A workshop of the Iberian group of IPY project ANTPAS was organized, as well as a workshop of the Network of Meteorological Monitoring in the Iberian Mountains. There were 30 participants from Portugal, Spain and the USA. António Gomez Órtiz, Jerry Brown and Raquel Melo were invited for conferences in the opening session. Paper from the conference will be published in the Portuguese Geography journal Finisterra. The CEG-UL group has also been very active in the implementation of a national programme for polar research. A proposal has been submitted by the Portuguese IPY Committee to the Portuguese Science Foundation and is now under evaluation. In this proposal permafrost research plays a significant role and has been taken as a priority by the Committee. Portugal has been actively involved in the Permafrost Young Researchers Network with the participation of the national PYRN coordinator (Raquel Melo) in the Abisko meeting in February 2007. Alexandre Trindade is the national representative in the Association of Polar Early Career Scientists (APECS) and he has attended the Stockholm meeting in September 2007.  Permafrost research has been also a major focus on IPY Education and Outreach activities. The CEG-UL group is co-coordinating (with the Centre of Marine Sciences - University of the Algarve and Association of Geography Teachers) the national IPY E&O project LATITUDE60! that links scientists to society during the IPY. The project is funded by the national agency Ciência Viva and has been enthusiastically received by the public and more than 100 schools and 400 teachers have joined the project. The project is cross-cutting several disciplines and includes students from kinder garden to high school and university level. Several activities with a relationship to permafrost have been going on: 1) an exhibition that has been in 5 major shopping centers in central and northern Portugal; 2) educational DVD on permafrost research to be distributed freely to schools; 3) permafrost scientists go to schools for talks; 4) IPY launch event with a focus on permafrost; 5) daily blogs by permafrost scientists; 6) ask a scientist with the participation of permafrost scientists answering from the Antarctic; 7) videoconference event from the Antarctic with permafrost scientists. One of the main activities that occurred was the national contest “Discover the Polar Regions” that had more than 8,000 students involved. 5 high school students have been selected from the contest and offered trips to the Antarctic within the international expedition Students-on-ice. The blog of the project LATITUDE60! Can be visited at http://latitude60.blogspot.com. IPA Portugal – Report 2006 |  Apoios | Support        Temas dos Posts
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