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Main Culprit of Deadly Russian Heat Wave? Natural Variability

By Guest PostMarch 10, 2011Environmentatmospheric blocking pattern, atmospheric carbon dioxide, atmospheric models, boulder, climate change, climate surprise, computer climate models, concentration, crop failures, daily average temperatures, early summer of 2010, earth system research laboratory, esrl, greenhouse gas concentrations, heat wave, judith perlwitz, martin hoerling, mio matsueda, moscow, munich reinsurance, natural atmospheric phenomenon, randall dole, russia, russian heat wave, signal of a warming climate, summer storms, temperatures, warming hole, weather extremes

WASHINGTON — The deadly Russian heat wave of 2010 was due to a natural atmospheric phenomenon often associated with weather extremes, according to a new study. And while the scientists could not attribute the intensity of this particular heat wave to climate change, they found that extreme heat waves are likely to become increasingly frequent in the region in coming decades.

The research team drew from scientific observations and computer climate models to evaluate the possible roles of natural and human-caused climate influences on the severity of the heat wave. The study has been accepted for publication in Geophysical Research Letters, a journal of the American Geophysical Union. (more…)

Greenland’s Glaciers Double in Speed

By Guest PostFebruary 22, 2011Environmentairborne radar systems, antarctic ice sheet, Arctic, basins and mountains, Cambridge University, glacier, glaciologist, global climate system, global ocean, global sea level change, greenland, greenland ice sheet, humankind, icebergs, icy world, julian dowdeswell, polar regions, radar systems, sea level, seas, sub glacial mountains, temperatures

The contribution of Greenland to global sea level change and the mapping of previously unknown basins and mountains beneath the Antarctic Ice Sheet are highlighted in a new film released by Cambridge University this morning.

The work of glaciologist Professor Julian Dowdeswell, Director of Cambridge University’s Scott Polar Research Institute, is the focus of This Icy World, the latest film in the University’s Cambridge Ideas series. (more…)

High-Tech Software and Unmanned Planes Allow Scientists to Keep Tabs on Arctic Seals

By Guest PostDecember 15, 2010Environment, Natureaerial photos, aircraft, Arctic, arctic ringed seal, atmosphere, bearded, bering sea, cameras, climate scientists, earth, elizabeth weatherhead, four species of arctic seals, greenhouse gases, ice floes, marine, noaa, novel project, peter boveng, polar ecosystems, ribbon seals, ringed, scan eagle, sea ice, seal populations, seals, spotted, temperatures, terrestrial mammals

A novel project using cameras mounted on unmanned aircraft flying over the Arctic is serving double duty by assessing the characteristics of declining sea ice and using the same aerial photos to pinpoint seals that have hauled up on ice floes.

The project is the first to use aircraft to monitor ice and seals in remote areas without putting pilots and observers at risk, said Elizabeth Weatherhead of the University of Colorado at Boulder, who is leading the study team. Weatherhead is a senior scientist at the Cooperative Institute for Research in Environmental Sciences, a joint venture of CU-Boulder and the National Oceanic and Atmospheric Administration. (more…)

Tag Archives: temperatures

Main Culprit of Deadly Russian Heat Wave? Natural Variability

Greenland’s Glaciers Double in Speed

High-Tech Software and Unmanned Planes Allow Scientists to Keep Tabs on Arctic Seals