Sentences with phrase «atmospheric processes during»

Storms also a question mark The attribution studies also looked into storms and rainfall extremes, but the complexity of atmospheric processes during such events made it difficult for scientists to decipher the role of climate change.

Not exact matches

The workshop, building on the knowledge and practical skills acquired during the school, aims to bring together expertise on large - scale atmospheric and oceanic dynamics, small scale cloud and precipitation processes, hierarchical climate modeling and observation.

Her photograms are a direct record of atmospheric conditions during the process of their production: light, humidity, and the outside temperature, among other factors, determine the surface of the final works.

Note that the atmospheric signal is smoothed during the pore close - off process, so that sharp fluctuations occurring at sub centennial timescales can not be resolved in Antarctic ice cores.

For example, atmospheric carbon dioxide grew by approximately 30 % during the transition from the most recent cold glacial period, about 20,000 years ago, to the current warm interglacial period; the corresponding rate of decrease in surface ocean pH, driven by geological processes, was approximately 50 times slower than the current rate driven largely by fossil fuel burning.

It has been postulated that teleconnections, oceanic and atmospheric processes, on different timescales, connect both hemispheres during abrupt climate change.

Currently, the role of CH4 oxidation (a microbial process that consumes methane) in mediating atmospheric CH4 fluxes during lake turnover events is also not well understood.

A more definitive reconciliation of modeled and observed temperature changes awaits the extension and improvement of the observations and the algorithms used in processing them, better specification of the natural and human - induced climate forcings during this period, and improvement of the models used to simulate the atmospheric response to these forcings.break

The USGCRP was established during a period of significant relevant development in Earth system science, and was designed and led from the beginning to support work in atmospheric science, oceanography, biogeochemistry — observing systems, modeling, process studies.

Based on the understanding of both the physical processes that control key climate feedbacks (see Section 8.6.3), and also the origin of inter-model differences in the simulation of feedbacks (see Section 8.6.2), the following climate characteristics appear to be particularly important: (i) for the water vapour and lapse rate feedbacks, the response of upper - tropospheric RH and lapse rate to interannual or decadal changes in climate; (ii) for cloud feedbacks, the response of boundary - layer clouds and anvil clouds to a change in surface or atmospheric conditions and the change in cloud radiative properties associated with a change in extratropical synoptic weather systems; (iii) for snow albedo feedbacks, the relationship between surface air temperature and snow melt over northern land areas during spring and (iv) for sea ice feedbacks, the simulation of sea ice thickness.

Specifically, during the period 60 My BP (60 million years before present) to 50 My BP India was plowing north rapidly (20 cm per year) through the Tethys Ocean and in the process subducting carbonate - rich ocean crust, causing atmospheric CO2 to increase.

However, such processes are unlikely during winter and occur during a limited period of the year (typically from late spring to early fall, 21), and we argue that their past evolution will have a negligible impact on the deep firn atmospheric record.

A key example of this balancing process concerns the best value of what is known as the climate sensitivity, that is the increase in global average temperature associated with a doubling of atmospheric carbon dioxide that, unless severe mitigating action is taken, is likely to occur during the second half of the 21st century.

The discovery in ice core records that atmospheric concentrations of two potent greenhouse gases, carbon dioxide and methane, have decreased during past glacial periods and peaked during interglacials indicates important feedback processes in the Earth system.