Antarctic climate cooling and terrestrial ecosystem response

  title={Antarctic climate cooling and terrestrial ecosystem response},
  author={Peter T. Doran and John C. Priscu and W. Berry Lyons and John E. Walsh and Andrew G. Fountain and Diane M. McKnight and Daryl L. Moorhead and Ross A. Virginia and Diana H. Wall and Gary D. Clow and Christian H. Fritsen and Christopher P. McKay and Andrew N. Parsons},
The average air temperature at the Earth's surface has increased by 0.06 °C per decade during the 20th century, and by 0.19 °C per decade from 1979 to 1998. Climate models generally predict amplified warming in polar regions, as observed in Antarctica's peninsula region over the second half of the 20th century. Although previous reports suggest slight recent continental warming, our spatial analysis of Antarctic meteorological data demonstrates a net cooling on the Antarctic continent between… 
Warming of the Antarctic ice-sheet surface since the 1957 International Geophysical Year
It is shown that significant warming extends well beyond the Antarctic Peninsula to cover most of West Antarctica, an area of warming much larger than previously reported and suggested that neither can be attributed directly to increases in the strength of the westerlies.
Antarctic Climate Change and its Influences on Terrestrial Ecosystems
Most global circulation models (GCMs) predict enhanced rates of climate change, particularly temperature increase, at higher latitudes. In the Antarctic terrestrial environment, the severe stresses
Rapid change in East Antarctic terrestrial vegetation in response to regional drying
East Antarctica has shown little evidence of warming to date1–3 with no coherent picture of how climate change is affecting vegetation4–6. In stark contrast, the Antarctic Peninsula experienced some
Response of Wintertime Antarctic Temperatures to the Antarctic Oscillation: Results of a Regional Climate Model
Temperature trends in Antarctica have not been uniform in the last decades. A strong warming in the Antarctic Peninsula (2.5°C in the last 45 years) [King and Harangozo, 1998] has led to the rapid
A permafrost warming in a cooling Antarctica?
The magnitude and even direction of recent Antarctic climate change is still debated because the paucity of long and complete instrumental data records. While along Antarctic Peninsula a strong
Antarctic Climate and Soils
Climate change is having a significant impact on the ecosystems of Antarctica and has been the focus of scientific research in the past few decades. Our understanding of how large-scale weather
Climate projections over the Antarctic Peninsula region to the end of the 21st century. Part II: wet/dry indices
Abstract. Objective of the study is an assessment of possible climate change in the region of the Antarctic Peninsula from 1986 until the end of the 21st century projected by the RCMs’ ensemble.
Recent Rapid Regional Climate Warming on the Antarctic Peninsula
The Intergovernmental Panel on Climate Change (IPCC) confirmed that mean global warming was 0.6 ± 0.2 °C during the 20th century and cited anthropogenic increases in greenhouse gases as the likely


Physical Controls on the Taylor Valley Ecosystem, Antarctica
Most of Antarctica is covered by ice that may exceed 3000 m in depth, but some areas of the continent are ice free. The McMurdo Dry Valleys, at 76030'-78030' S, 160-1640 E, form the largest
Valley floor climate observations from the McMurdo dry valleys, Antarctica, 1986–2000
[1] Climate observations from the McMurdo dry valleys, East Antarctica are presented from a network of seven valley floor automatic meteorological stations during the period 1986 to 2000. Mean annual
Recent atmospheric warming and retreat of ice shelves on the Antarctic Peninsula
IN 1978 Mercer1 discussed the probable effects of climate warming on the Antarctic Ice Sheet, predicting that one sign of a warming trend in this region would be the retreat of ice shelves on the
Surface air temperature and its changes over the past 150 years
We review the surface air temperature record of the past 150 years, considering the homogeneity of the basic data and the standard errors of estimation of the average hemispheric and global
Regional impacts of climate change in the Arctic and Antarctic
  • G. Weller
  • Environmental Science
    Annals of Glaciology
  • 1998
Regional assessments of impacts due to global climate change are a high priority in the international programs on global-change research. in the polar regions, climate models indicate an
Marine Ecosystem Sensitivity to Climate Change
393 M ounting evidence suggests that the earth is experiencing a period of rapid climate change. Never before has it been so important to understand how environmental change influences the earth’s
Climatological observations and predicted sublimation rates at Lake Hoare, Antarctica.
The first year-round observations available for any site in Taylor Valley are reported on and a model incorporating nonsteady molecular diffusion into Kolmogorov-scale eddies in the interfacial layer and similarity-theory flux-profiles in the surface sublayer, is used to determine the rate of ice sublimation from the acquired meteorological data.
Variability and Trends in Antarctic Surface Temperatures from In Situ and Satellite Infrared Measurements
Abstract The surface air temperatures observed from stations in Antarctica have been shown to have predominantly positive trends that are as high as 0.5°C decade−1 along the Antarctic Peninsula. To
Changes in ice cover thickness and lake level of Lake Hoare, Antarctica: implications for local climatic change.
It is suggested that the term most likely responsible for the change in the ice cover thickness at Lake Hoare is the extent of summer melting, consistent with the rising lake levels, as well as possible explanations for the thinning of the lake ice.
Carbon Transformations in a Perennially Ice-Covered Antarctic Lake
adjacent to McMurdo Sound (76.5-78.50 S, 160-164.50 E), form the largest ice-free region (approximately 4500 km2) on the Antarctic continent (Fountain et al. 1999). The McMurdo Dry Valley landscape