Sentences with phrase «observed seasonal cycle»

However, in Brient Alb seasonal variations — as used in Zhai — were considered to produce a less satisfactory constraint than deseasonalized variations, since models are relatively poor at reproducing the observed seasonal cycle.

Our own model would say between 2040 and 2060, and it is fair to say that our view is that the earlier dates - in other words, the more pessimistic outlook for the Arctic - are associated with models that we believe are more credible, in terms of their capability to reproduce the observed seasonal cycle in sea ice extent, and also the variations in sea ice from year to year.

Hall and Qu (2006) show that biases of a number of MMD models in reproducing the observed seasonal cycle of land snow cover (especially the spring melt) are tightly related to the large variations in snow albedo feedback strength simulated by the same models in climate change scenarios.

A least - squares fit regression line for the simulations (solid line) and the observed seasonal cycle Δαs / ΔTs value based on ISCCP and ERA40 reanalysis (dashed vertical line) are also shown.

Model performance in reproducing the observed seasonal cycle of land snow cover may provide an indirect evaluation of the simulated snow - albedo feedback under climate change.

Not exact matches

This time frame allowed us to observe over almost a full seasonal cycle: we watched Saturn's and Titan's southern hemispheres go from summer to winter and their northern hemispheres go from winter to summer.

mixed layer is oceanographically absurd is that all sorts of well - observed facets of the ocean go haywire if you assume a mixed layer to that depth — seasonal cycle, C14, CFC's, and for that matter the rate of removal of CO2 from the atmosphere.

Comparison with observed estimates of the seasonal cycle suggested that most models in the MMD underestimate the strength of this feedback.

The list of solar bodies this claim is made for includes: - pluto: pluto is in its late summer season (it has an almost 300 year seasonal cycle) so the observed warming is by no means anomalous - mars: mars has only had warming observed in one area of the southern hemisphere.

The decadal LOD variations (e.g., approx. 4 ms around 1900; Hide et al. 2000) are too large in amplitude to be explained by the atmosphere; the largest atmospheric contributions observed are from the seasonal cycle and El Niño events (approx. 1 ms in amplitude).

CAS = Commission for Atmospheric Sciences CMDP = Climate Metrics and Diagnostic Panel CMIP = Coupled Model Intercomparison Project DAOS = Working Group on Data Assimilation and Observing Systems GASS = Global Atmospheric System Studies panel GEWEX = Global Energy and Water Cycle Experiment GLASS = Global Land - Atmosphere System Studies panel GOV = Global Ocean Data Assimilation Experiment (GODAE) Ocean View JWGFVR = Joint Working Group on Forecast Verification Research MJO - TF = Madden - Julian Oscillation Task Force PDEF = Working Group on Predictability, Dynamics and Ensemble Forecasting PPP = Polar Prediction Project QPF = Quantitative precipitation forecast S2S = Subseasonal to Seasonal Prediction Project SPARC = Stratospheric Processes and their Role in Climate TC = Tropical cyclone WCRP = World Climate Research Programme WCRP Grand Science Challenges • Climate Extremes • Clouds, Circulation and Climate Sensitivity • Melting Ice and Global Consequences • Regional Sea - Ice Change and Coastal Impacts • Water Availability WCRP JSC = Joint Scientific Committee WGCM = Working Group on Coupled Modelling WGSIP = Working Group on Subseasonal to Interdecadal Prediction WWRP = World Weather Research Programme YOPP = Year of Polar Prediction

Although the time resolution of old air locked in ice cores is not enough to preserve seasonal cycles, there is no doubt that the seasonal cycle, which is mostly caused by photosynthesis and respiration of ecosystems on land, was similar to what we observe today.

A number of techniques have been employed to sub-set or recalibrate these projections based on different aspects of the observed ice cover, including the mean and / or seasonal cycle of ice extent (e.g., Stroeve et al., 2007, 2012a; Wang and Overland, 2009, 2012), historical ice cover trends (Boe et al., 2009), and ice volume and thin ice area (Massonnet et al., 2012).

Subtracting the observed bunches from a sliding decadal gaussian climatology emphasizes the seasonal structure of solar cycle modulation of equator - pole gradients.