Not exact matches
They used two different climate
models, each with a different
sensitivity to carbon dioxide, to
project California's future under two scenarios: an optimistic one, in which we only double the level of carbon dioxide in the atmosphere — since the 19th century we've already increased it by about a third — and a pessimistic scenario, in which we more than triple CO2.
In
project on BRAF - mutant melanoma and EGFR - mutant non-small cell lung cancer, we conceived a novel drug
sensitivity metric, the DIP rate, that makes it possible to incorporate drug - induced proliferation rates in predictive
models of response.
To address this, we present a framework for assessing three dimensions of climate change vulnerability, namely
sensitivity, exposure and adaptive capacity; this draws on species» biological traits and their
modeled exposure to
projected climatic changes.
So, the key thing in evaluating climate
sensitivity is to use the LGM as a test of how well the
models are doing clouds, using the LGM, and then see what happens in the same
model when you
project to the future.
In a
Project Zero classroom, teachers are also learners who
model intellectual curiosity and rigor, interdisciplinary and collaborative inquiry, and
sensitivity to the ethical and aesthetic dimensions of learning.
However, your fault is that you have an audacity to
project conclusions from primitive and deficient
models (and frequently just from handwaiving about «tipping points» and «
sensitivity») to practical life.
The coupled climate carbon cycle intercomparison
project (C4MIP) will permit the assessment of
model sensitivity of the carbon cycle to global temperature change.
Using the business - as - usual scenario for GHG radiative forcing (RCP8.5) and their novel estimate of Earth's warm - phase climate
sensitivity the authors find that the resulting warming during the 21st century overlaps with the upper range of the Coupled
Model Intercomparison
Project Phase 5 (CMIP5) climate simulations.
Natural variability is now widely accepted as making a significant contribution and our argument for a lowered climate
sensitivity — which would indicate that existing climate
models are not reliable tools for
projecting future climate trends — is buoyed by accumulating evidence and is gaining support in the broader climate research community.
The whole point of this exercise is attribute virtually ALL of the late 20th c. rise to CO2 fit a high climate
sensitivity model to it and
project / extrapolate the defective
model out to 2100.
Contribution from working group I to the fifth assessment report by IPCC TS.5.4.1
Projected Near - term Changes in Climate Projections of near - term climate show small
sensitivity to Green House Gas scenarios compared to
model spread, but substantial
sensitivity to uncertainties in aerosol emissions, especially on regional scales and for hydrological cycle variables.
In this report, we
project future mass balance changes using regional mass balance
sensitivities which take account of regional and seasonal climatic information, instead of using the heuristic
model of Wigley and Raper (1995) employed by Warrick et al. (1996).
«The Coupled
Model Intercomparison Project Phase 5 (CMIP5) model spread in equilibrium climate sensitivity ranges from 2.1 °C to 4.7 °C and is very similar to the assessment in the
Model Intercomparison
Project Phase 5 (CMIP5)
model spread in equilibrium climate sensitivity ranges from 2.1 °C to 4.7 °C and is very similar to the assessment in the
model spread in equilibrium climate
sensitivity ranges from 2.1 °C to 4.7 °C and is very similar to the assessment in the AR4.
The
project operated for slightly more than two years in a polite atmosphere, consisting of six dialogues on Arctic sea ice, trend significance, the «hot spot», regional climate
modelling, climate
sensitivity, and the sun.
Just try and explain the nuances of actual vs
projected emissions, scenarios boundaries, climate
sensitivity uncertainties, and the 26 year old state of climate
modeling vs what they know now.
Had Hansen used a climate
model with a climate
sensitivity of approximately 3.4 °C for 2xCO2 (at least in the short - term, it's likely larger in the long - term due to slow - acting feedbacks), he would have
projected the ensuing rate of global surface temperature change accurately.
Some people, mostly non-experts I think who are misusing the concepts, may use
sensitivity to
project temperature in that way; but in the literature I think the major use of equilibrium
sensitivity is as a diagnostic for comparing or characterizing
models.
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
In simulations of the warmer climate reached after quadrupling carbon dioxide concentrations, higher -
sensitivity (HS)
models project a reduction of TLC reflection, whereas lower -
sensitivity (LS)
models project less change or even an increase.
''... had the IPCC FAR correctly
projected the changes in atmospheric GHG from 1990 to 2011, their «best estimate»
model with a 2.5 °C equilibrium climate
sensitivity would have
projected the ensuing global warming very accurately»
To better inform the planning, management and research priorities of Aquapod operations in Northwest Mexico, this
project couples marine spatial planning with bio-economic
modeling and
sensitivity analyses to identify suitable sites for Aquapod implementation and evaluate the economic viability of Aquapod operations.
Incorporating new findings on the radiative forcing of black carbon (BC) aerosols, the magnitude of the climate
sensitivity, and the strength of the climate / carbon cycle feedbacks into a simple upwelling diffusion / energy balance
model similar to the one that was used in the TAR, we find that the range of
projected warming for the 1990 - 2100 period is reduced to 1.1 - 2.8 °C.
I think thy have «exaggerated» the 2xCO2 climate
sensitivity (see posts to Jeff Glassman), as well as the assumed future CO2 levels in most of the
model - based «scenarios and storylines», and thus have greatly exaggerated the
projected future warming from increased CO2.
Loehle estimated the equilibrium climate
sensitivity from his transient calculation based on the average transient: equilibrium ratio
projected by the collection of climate
models used in the IPCC's most recent Assessment Report.
The Postdoc will be responsible for preparing long - term lidar and radar measurements for use with a newly developed ground - based lidar - radar simulator for ModelE3, running ModelE3 baseline and
sensitivity test simulations, preparing comparisons of aerosol and meteorological conditions with existing reanalysis and satellite data sets, and contributing to
model improvement efforts that will be guided by
project results.
If this simplistic interpretation is correct, does this mean (by extrapolation) that he
model - based climate
sensitivity estimates used by IPCC to
project future temperature trends are essentially meaningless?
For most of the public, it is «climate
models» that are used to
project global warming into the future, or to estimate the planet's
sensitivity to CO2.
Using the
Model E forcings through 2000 and
projecting them through 2100 based on the IPCC atmospheric CO2 concentration estimates for these two scenarios gave the following empirical climate
sensitivities for GISS OA:
Project STEEP (Steps Toward Effective Enjoyable Parenting) is a comprehensive program designed to change inner working
models and enhance maternal
sensitivity.29 The approach involved home visits and group sessions beginning prenatally and continuing for two years (the original program was designed for one year).