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Publications and Presentations

 

Refereed Publications:

Non-Refereed Publications:

Posters and Presentations:

Web Sites:

Refereed Publications:

2007   

  • Oberbauer, Steven F., Craig E. Tweedie, Jeff M. Welker, Jace T. Fahnestock, Greg H.R. Henry, Patrick J. Webber, Robert D. Hollister, Marilyn D. Walker, Andrea Kuchy, and Gregory Starr. Carbon dioxide exchange responses of arctic tundra ecosystems to experimental warming along moisture and latitudinal gradients. Ecological Monographs.
  • Aguirre, A, J. Brown, A. Gaylord and C. E. Tweedie. (Submitted). Erosion of the Barrow Environmental Observatory Coastline 2003-2007, Northern Alaska. Proceedings of the ninth international conference on permafrost.
  • Hollister R.H, P.J. Webber, F.E. Nelson, R.T. Slider and C.E. Tweedie. (in press). Soil Temperature and Thaw Response to Air Warming Varies with Changing Vegetation. Proceedings of the ninth international conference on permafrost.

                                                                       

2006                                 

  • Walker, M., H. Wahren, L. Alquist, J. Alatolo, S. Bret-Harte, M. Calef, T. Callaghan, A. Carrol, C. Copass, H. Epstein, G. Henry, R.D. Hollister, I.S. Jonsdottir, J. Klein, B. Magnusson, U. Molau, S. Oberbauer, S. Rewa, C. Robinson, G. Shaver, K. Suding, A. Tolvanen, O. Totland, P.L. Turner, C.E. Tweedie, P.J. Webber, P. Wookey. Tundra plant community response to experimental warming: sensitivity in a rapidly changing environment. Proceedings of the National Academies of Science 103(5):1342-1346.
  • Hollister, R.D., P.J. Webber, F. Nelson, C.E. Tweedie. Microenvironments of four experimentally warmed arctic tundra communities. Arctic, Antarctic and Alpine Research, 38(2): 206-215.
  • NRC. Toward an Integrated Arctic Observing Network. The National Academy Press, Washington D.C. Pp115. [Member of an 18-author blue ribbon panel].

 

2005                                                                                                                                       

  • Hollister, R.D., P.J. Webber, C.E. Tweedie. 2005. Vegetation change in northern Alaska following experimental warming: Separation of initial and secondary responses. Global Change Biology, 11(4):525-536.
  • Hinzman, R.D., N. Bettez, F.S. Chapin, M. Dyurgerov, C. Fastie, B. Griffith, R.D. Hollister, A. Hope, H. Huntington, A. Jensen, D. Kane, A. Lynch, A. Lloyd, A.D. McGuire, F. Nelson, W.C. Oechel, T. Osterkamp, C. Racine, V. Romanovsky, D. Stow, M. Sturm, C.E. Tweedie, G. Vourlitis, M. Walker, P.J. Walker, J. Welker, K. Winkler, K. Yoshikawa (2005). Evidence and implications of recent climatic change in terrestrial regions of the Arctic. Climatic Change 72(3): 1-48.

 

2004   

  • Graves, A., C.E. Tweedie, D. Zaks, S. Serbin, W. Manley, J. Brown, R. Bulger. 2004. Spatial data infrastructure supports long term measurements to detect arctic change. Arctic Coastal Dynamics – Report of the 4th International Workshop. Ber. Polarforsch. Meeresforsch, 482(2004): 29-30.
  • Serbin, S., A. Graves, D. Zaks, J. Brown, C.E. Tweedie. 2004. The utility of survey grade differential global positioning system (DGPS) technology for monitoring coastal erosion. Arctic Coastal Dynamics – Report of the 4th International Workshop. Ber. Polarforsch. Meeresforsch, 482(2004): 29-30.
  • Stow, D., A. Hope, D. McGuire, D. Verbyla, J. Gamon, K. Huemmrich, S. Houston, C. Racine, C. M. Sturm, K. Tape, L. Hinzman, K. Yoshikawa C.E. Tweedie, B. Noyle, Silapaswan, D. D. Douglas, B. Griffith, G, Jia, H. Epstein, D.A. Walker, S. Daeschner, A. Petersen, L. Zhou, and R. Myneni. 2004. Remote sensing of vegetation and land cover changes in arctic tundra ecosystems. Remote Sensing of Environment, 89: 281-308.

 

2003   

  • Tweedie, C.E., R.D. Hollister, P.J. Webber. (2003). Decadal changes in permafrost, land form and land cover near Barrow, Alaska. In: 8th International Conference on Permafrost, Zurich, Switzerland. 20-25 July, 2003.

 

2000   

  • Tweedie, C.E. (2000). Climate change and the autecology of six plant species along an altitudinal gradient on subantarctic Macquarie Island. Bulletin of the Ecological Society of Australia, 31 (4): 27-28.
  • Tweedie, C. E & Bergstrom, D. M. (2000). A climate change scenario for surface air temperature at subantarctic Macquarie Island. In: Davison, W (ed). Proceedings of the VII SCAR international biology symposium, Christchurch, New Zealand, 31st August – 4th September. (Invited Chapter).

 

1998   

  • Erskine, P.D., D. M. Bergstrom, S. Schmidt, G.R. Stewart, C.E. Tweedie, and J.D. Shaw (1998) Subantarctic Macquarie Island – a model ecosystem for studying animal derived nitrogen sources using 15δN natural abundance. Oecologia, 17(1-2): 187-193.
  • Bergstrom, D. M. & C.E. Tweedie (1998) A conceptual model for integrative studies of epiphytes: nitrogen utilization a case study. Australian Journal of Botany, 46:270-280.

Non-Refereed Publications Sine 2005:

2006   

  • Callaghan, T.V., B. Rudels, C.E. Tweedie. Report to the Danish Environmental Protection Agency: International review of the Zackenberg Research Station. Report delivered under contract to the Danish Environmental Protection Agency October 29th, 2006. 32pp.
  • Zhang, W., E. Sarukhanian, C.E. Tweedie, J. Bottenheim, A. Snorrason, T. Vlasova, D. Williams, P. Dexter, K. Jezek, M. Majodina. Final report from the International Polar Year Sub Committee on Observations to the International Joint Committee for the International Polar Year. Submitted May 2006.
  • Zhang, W., E. Sarukhanian, C.E. Tweedie, M. Parsons, T. DeBruin. Final report from the Joint meeting of the International Polar Year Sub Committees on Observations and Data Management to the International Joint Committee for the International Polar Year. Submitted December 2006.
  • Tweedie, C.E., D. Lin, T.R. Christensen, Y.A. Teh, R. Rhew, P.J. Webber. Recent changes in land cover and carbon balance in Beringia. Yearbook 2005. Swedish Polar Research Secretariat. Pp105-107.

 

2005   

  • Shaver, G., T.C. Callaghan, C.E. Tweedie and Patrick J. Webber. 2005. Flagship observatories in arctic research: Their design and role in ecosystem research and the need for networking. Report from a workshop held at the Ecosystems Center, Woods Hole, Massachusetts. November 18-20, 2004. 21pp.
  • Callaghan, T.V. (Chair), T. R. Christensen (Co-chair) , A. Arneth, M. Forchhammer, G. Henry, J. Hobbie, R. A. Ims, D. McGuire, W. Oechel, C. Prentice, G. Shaver, S. Sitch, F. Wrona, S. Zimov, P. Wookey, P. Kuhry, E. Pfeiffer, A. Hofgaard, J. Kimball, C.E. Tweedie, M. Johansson. 2005. Report from Working Group 8: Terrestrial and Freshwater Biosphere and Biodiversity. Second International Conference on Arctic Research Planning. Copenhagen, Denmark 10-12 November 205. 18pp.

 

Posters and Presentations:

2007

  • 30th January. Guest lecture in the MECH4466 senior mechanical engineering design class: Novel challenges for mechanical engineers in arctic terrestrial ecosystem research. Lecturer – Malcolm Cook
  • Falls Creek, Australia. 2-7 February. Meeting: International Tundra Experiment annual meeting. Oral Presentation: Impact of land cover change on the carbon balance of Beringia: initial findings following the Swedish 2005 Beringia Expedition.
  • Falls Creek, Australia. 2-7 February. Meeting: International Tundra Experiment annual meeting. Oral Presentation: Update from the Circumarctic Environmental Observatories Network.
  • Falls Creek, Australia. 2-7 February. Meeting: International Tundra Experiment annual meeting. Oral Presentation: Overview and recent findings from the Barrow Biocomplexity Experiment.
  • Falls Creek, Australia. 2-7 February. Meeting: International Tundra Experiment annual meeting. Oral Presentation: Internet Map Servers as a tool for managing information and data.
  • Paris, France. 19-20 February. Meeting: data management issues (“cyber-research-infrastructures”) in Humanities and Social Science-based research, sponsored by the European Science Foundation and UNICEF. Invited talk: Internet Map Servers as a tool for managing information and data – Case study with the Arctic Research Mapping Application.
  • Hanover New Hampshire. 13-20 March. Arctic Science Summit Week, meeting of the Forum of Arctic Research Operators. Oral Presentation: Update from the Circumarctic Environmental Observatories Network.
  • Hanover New Hampshire. 13-20 March. Arctic Science Summit Week. Oral Presentation: Update on young people’s perspectives on the International Conference on Arctic Research Planning II process.
  • Fairbanks, Alaska. 19-23 March. Meeting: 41st Annual Alaska Surveying and Mapping Conference (ASMC). Oral Presentation: The Arctic Research and Mapping Application (ARMAP).
  • Fairbanks, Alaska. 19-23 March. Meeting: 41st Annual Alaska Surveying and Mapping Conference (ASMC). Oral Presentation: The Arctic Spatial Data Infrastructure (ASDI).
  • Boulder Colorado. 28-30 March. Meeting: First Meeting of the NSF-funded Arctic Observing Network (AON). Invited Presentation: Overview of the Circumarctic Environmental Observatories Network.
  • Roskilde, Denmark. 28-29 March. Zackenberg Basic Strategy workshop. Invited Talk: Report from the Zackenberg 10-year review committee. 
  • Roskilde, Denmark. 28-29 March. Zackenberg Basic Strategy workshop. Invited Talk: Internet Map Servers as a tool for managing arctic research and monitoring information and data. 
  • Seattle, Washington. 2-4 April. Meeting: Arctic System Synthesis Workshop: New Perspectives through Data Discovery and Modeling. Poster Presentation: The Arctic Research and Mapping Application (ARMAP).
  • Seattle, Washington. 2-4 April. Meeting: Arctic System Synthesis Workshop: New Perspectives through Data Discovery and Modeling. Poster Presentation: The Barrow Area Information Database and Internet Map Server (BAID-IMS).
  • Seattle, Washington. 2-4 April. Meeting: Arctic System Synthesis Workshop: New Perspectives through Data Discovery and Modeling. Poster Presentation: The Arctic Spatial Data Infrastructure (ASDI).
  • 3rd May. Guest lecture in the BIOL4395 and BIOL5327 classes: Climate change. Lecturer – Vanessa Lougheed
  • El Paso, Texas. 4th May. Meeting: Sigma Xi annual luncheon. Invited presentation: Multidisciplinary approaches for understanding climate change impacts.
  • Washington DC. 23-34 May. 19th Arctic Forum. Poster Presentation: The Arctic Spatial Data Infrastructure (ASDI).
  • Washington DC. 23-34 May. 19th Arctic Forum. Poster Presentation: The Arctic Research and Mapping Application (ARMAP).
  • Washington DC. 23-34 May. 19th Arctic Forum. Poster Presentation: The Barrow Area Information Database and Internet Map Server (BAID-IMS).
  • Washington DC. 23-34 May. 19th Arctic Forum. The Barrow Environmental Observatory.
  • 20th June. Guest lecture in the BIOL5301 class: Climate change. Lecturer – Kristin Gosselink.
  • San Diego, California. 18-22 June. Meeting: 2007 ESRI International User Conference. Poster Presentation: The Arctic Research and Mapping Application (ARMAP).
  • San Diego, California. 18-22 June. Meeting: 2007 ESRI International User Conference. Poster Presentation: The Arctic Spatial Data Infrastructure (ASDI).
  • San Diego, California. 18-22 June. Meeting: 2007 ESRI International User Conference. Poster Presentation: The Barrow Area Information Database and Internet Map Server (BAID-IMS).
  • San Diego, California. 18-22 June. Meeting: 2007 ESRI International User Conference. Poster Presentation: The Circumarctic Environmental Observatories Network Internet Map Server (CEON-IMS)
  • Yellowknife, Canada. 20-24 August. Meeting: IPY GeoNorth 2007, the First International Circumpolar Conference on Geospatial Sciences and Applications. Oral Presentation: The Arctic Research and Mapping Application (ARMAP).
  • Yellowknife, Canada. 20-24 August. Meeting: IPY GeoNorth 2007, the First International Circumpolar Conference on Geospatial Sciences and Applications. Oral Presentation: The Arctic Spatial Data Infrastructure (ASDI).
  • 4th September. Guest lecture in the MECH4466 senior mechanical engineering design class: Novel challenges for mechanical engineers in arctic terrestrial ecosystem research. Lecturer – Malcolm Cook
  • Edmonton, Canada. 10-14 September. Meeting: SpecNet North 2007. Oral Presentation: Impact of land cover change on the carbon balance of Beringia: initial findings following the Swedish 2005 Beringia Expedition.
  • Edmonton, Canada. 10-14 September. Meeting: SpecNet North 2007. Oral Presentation: Spectral Measurements from the Barrow Biocomplexity Experiment.
  • Edmonton, Canada. 10-14 September. Meeting: SpecNet North 2007. Oral Presentation: Update from the Circumarctic Environmental Observatories Network (CEON).
  • Edmonton, Canada. 10-14 September. Meeting: SpecNet North 2007. Oral Presentation: Internet Map Servers as a tool for managing arctic research and monitoring information and data.
  • 16th October. Presentation of the CyberShaRE Center to officials at UTEP. Oral Presentation: Overview of the Environmental Science sub project.
  • Juarez, Mexico. 17 October. Invited lecture to a Graduate level environmental science seminar class: Multidisciplinary approaches for understanding climate change impacts.
  • College Station, Texas. 25 October. Invited lecture to a undergraduate and graduate level special topics class focused on the International Polar Year: Multidisciplinary approaches for understanding climate change impacts in arctic terrestrial ecosystems.
  • Stockholm, Sweden. 12-14 November. Meeting: First meeting for the Sustained Arctic Observing Network. Poster Presentation: SpecNet North.
  • Stockholm, Sweden. 15-16 November. Meeting:  The Scandinavian and North European Network of terrestrial field stations. Oral Presentation: Update from the Circumarctic Environmental Observatories Network.
  • Stockholm, Sweden. 15-16 November. Meeting:  The Scandinavian and North European Network of terrestrial field stations. Oral Presentation: The new international IPY project ‘Back to the Future’ ~ Revisiting and resampling old research sites to understand trends of long term change in arctic terrestrial ecosystems.
  • Birmingham, Alabama. 10 December. National Science Teachers Association. Invited seminar speaker (session: “Arctic and Antarctic living systems”): Climate change impacts on polar terrestrial ecosystems: their importance to the future state of the Earth System.
  • Birmingham, Alabama. 10 December. National Science Teachers Association. Invited Keynote presentation: The International Polar Year: our opportunity to advance our understanding of terrestrial ecosystems in the Polar Regions.
  • San Francisco, California. 10-14 December. Meeting: Annual American Geophysical Union meeting. Poster Presentation: Hyperspectral Studies of Arctic Tundra Ecosystems Using an Automated Robotic Cart System.
  • San Francisco, California. 10-14 December. Meeting: Annual American Geophysical Union meeting. Poster Presentation: Community Needs Assessment and Portal Prototype Development for an Arctic Spatial Data Infrastructure (ASDI).
  • San Francisco, California. 10-14 December. Meeting: Annual American Geophysical Union meeting. Poster Presentation: 3D Globe Support for Arctic Science through the Arctic Research Mapping Application (ARMAP3D).
  • San Francisco, California. 10-14 December. Meeting: Annual American Geophysical Union meeting. Poster Presentation: The Relationship of Carbon Dioxide Flux, Methane Flux, Hyperspectral Reflectance Properties, Leaf Area Index (LAI), and Albedo Over Multiple Land Cover Types in Beringia.
  • San Francisco, California. 10-14 December. Meeting: Annual American Geophysical Union meeting. Poster Presentation: Erosion of the Barrow Environmental Observatory Coastline 2003-2008, Northern Alaska.
  • San Francisco, California. 10-14 December. Meeting: Annual American Geophysical Union meeting. Poster Presentation: Arctic Research Mapping Application (ARMAP): 2D Maps and 3D Globes Support Arctic Science.

 

2006

  • Miami, Florida. 13-16 January. Meeting: 13th International Tundra Experiment Workshop. Title: Impact of land cover change on the carbon balance of Beringia: initial findings following the Swedish 2005 Beringia Expedition.
  • 25 January. GRAD6000/6100/6300 (Issues in Higher Education): My career journey. Invited Lecture to Gloria Villaverde’s class.
  • Menstrup Kro, Denmark. 3-4 February. Meeting: 10-Year Review of the Zackenberg Research Station, Northeast Greenland. Title: Overview of the Barrow Area Information Database and Internet Map Server and the Circumarctic Environmental Observatories Network Internet Map Server.
  • Potsdam, Germany. 22-29th April. Meeting: Arctic Science Summit Week. Title: Young people’s perspective on the International Conference on Arctic Research Planning II process.
  • Potsdam, Germany. 22-29th April. Meeting: Arctic Science Summit Week. Title: Update from the Circumarctic Environmental Observatories Network.
  • Potsdam, Germany. 28th April. Meeting: First meeting of the International Polar Year Sub Committee on Observations. Title: Terrestrial observations needed in the arctic and Antarctic to meet the goals of International Polar Year research.
  • Seward, Alaska. 15-19 May. Meeting: 9th Bi-annual circumpolar remote sensing symposium. Title: The Barrow Area Information Database and Internet Map Server.
  • Seward, Alaska. 15-19 May. Meeting: 9th Bi-annual circumpolar remote sensing symposium. Title: The Circumarctic Environmental Observatories Network Internet Map Server.
  • Washington D.C. 25-26 May. Meeting: The Arctic Forum 2006. Title: Opening comments and the charge to this meeting.
  • Washington D.C. 25-26 May. Meeting: The Arctic Forum 2006. Title: The proposed arctic spatial data infrastructure project.
  • Washington D.C. 25-26 May. Meeting: The Arctic Forum 2006. Title: Closing comments and the next steps….
  • Cairns, Australia. 9-14 July. Meeting: Society of wetlands scientists 27th annual meeting. Title: changes in plant community structure and soil salinity patterns in a mitigation wetland of the US desert southwest.
  • 9 September. CS4310 (Software Engineering I): The challenge of measuring environmental variability and stochasticity. Invited Lecture to Ann Gates’ class.
  • 11 September. SCI1100 (Science Seminar): Overview of global change and its impact in the Arctic. Invited Lecture to Malcolm Cook’s class.
  • Groningen, Holland. 22-26 October. Meeting: Annual meeting of the Arctic coastal Dynamics working group. Title: High-Resolution Rectified Aerial Photography for Collaborative Research of Environmental Change at Barrow, Alaska.
  • Tampa, Florida. 26-29 October. Meetings: SACNAS national conference. Title: Land cover change at Indio Mountains Research Station, west Texas.
  • New York. 16-17 November, Meeting: Discovery Access and Delivery of Data for IPY (DADDI). Title: The utility of Internet Map Server technologies in arctic science.
  • Potsdam, Germany. 19-21 November. Meeting: International conference on arctic research planning II implementation workshop. Title: Overview from working group 8: Terrestrial and freshwater biosphere and biodiversity.
  • Web conference. 20 November. Meeting: Coordinating International Polar Year education activities in the US. Title: Overview of the NSF-funded International Polar Year Research and education Opportunities in Antarctica for Minorities (IPY-ROAM).
  • San Francisco, California. 10-15 December. Meeting: American Geophysical Union meeting. Title: Overview of the NSF-funded International Polar Year Research and education Opportunities in Antarctica for Minorities (IPY-ROAM).
  • San Francisco, California. 10-15 December. Meeting: American Geophysical Union meeting. Title: The Arctic Research Mapping Application (ARMAP).
  • San Francisco, California. 10-15 December. Meeting: American Geophysical Union meeting. Title: Continuous Monitoring of Coastal Erosion in The Inupiat Eskimo Village of Barrow Alaska Using High Precision Differential Global Positioning System (DGPS).

 

2005

  • Fairbanks, Alaska. 28 February. The first High Latitude Ecological Observatory (HLEO), a regional component to the developing National Ecological Observatories Network (NEON).Linkages to other networking efforts.
  • Copenhagen, Denmark. 10-12 May Arctic Observing Network (AON) Meeting 3. US National Academy of Sciences. ~ Chaired session at meeting.
  • Abisko, Sweden. 19-20May,. Co-ordination of Observation and Monitoring of the Arctic for Assessment and Research. ~ Chaired 4 working group breakout sessions.
  • Abisko, Sweden. 19-20 May. Co-ordination of Observation and Monitoring of the Arctic for Assessment and Research (COMAAR). Overview, background and future of the Circumarctic Environmental Observatories Network (CEON).
  • Cambridge, United Kingdom. 9-10 June. Arctic portal workshop of the Arctic Council. The information portal of the Circumarctic Environmental Observatories Network (CEON).
  • Washington DC. 7-8 July. Arctic Observing Network (AON) Meeting 4. US National Academy of Sciences. Lead workshop breakout session.
  • Washington DC. 7-9 September. Arctic Observing Network (AON) Meeting 5. US National Academy of Sciences. Lead workshop breakout session.
  • Denver Colorado, 29 – 2 October. Poster presentation. Society for Advancement of Chicanos and Native Americans in Science (SACNAS) Conference. High precision monitoring of coastal erosion near the Inupiat Eskimo village of Barrow, Alaska.
  • Denver Colorado, 29 – 2 October. Poster presentation. Society for Advancement of Chicanos and Native Americans in Science (SACNAS) Conference. Spatial and temporal fluctuations in water levels of tundra ponds: baseline studies associated with a large-scale flooding and draining experiment in northern Alaska.
  • Denver Colorado, 29 – 2 October. Poster presentation. Society for Advancement of Chicanos and Native Americans in Science (SACNAS) Conference. Distribution of the graminoid Arctogrostis fulva in relation to water depth in Arctic ponds near Barrow, Alaska.
  • Denver Colorado, 29 – 2 October. Poster presentation. Society for Advancement of Chicanos and Native Americans in Science (SACNAS) Conference. Assessment of Land Use and Land Cover Change at Indio Mountains Research Station.
  • Denver Colorado, 29 – 2 October. Poster presentation. Society for Advancement of Chicanos and Native Americans in Science (SACNAS) Conference. Relationship between invasive salt cedar (Tamarix ramosissima), hydrology and soil salinity at Rio Bosque Wetland, El Paso, TX.
  • Copenhagen, Denmark. 10-12 November. Second International Conference on Arctic Research Planning (ICARP2). Invited Presentation: A Young persons’ perspective on the future of arctic terrestrial and freshwater biosphere and biodiversity research.
  • Copenhagen, Denmark. 10-12 November 2005. Second International Conference on Arctic Research Planning (ICARP2). Spatial and temporal fluctuations in water levels of tundra ponds: baseline studies associated with a large-scale flooding and draining experiment in northern Alaska. Poster presentation.
  • Copenhagen, Denmark. 10-12 November. Second International Conference on Arctic Research Planning. ~ Participated in discussion panel and addressed questions from meeting participants.
  • San Francisco, California. 5-9 December, American Geophysical Union (AGU) Fall meeting. Spatial and temporal fluctuations in water levels of tundra ponds: baseline studies associated with a large-scale flooding and draining experiment in northern Alaska. Poster presentation.
  • San Francisco, California. 5-9 December, American Geophysical Union (AGU) Fall meeting. The relationship between land cover, CO2 flux, CH4 flux, Hyperspectral Reflectance and plant biomass in Arctic Tundra: initial findings from the Swedish Beringia 2005 expedition. Poster presentation.

 

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