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RISSimulating Springtime Temperature Patterns in the Community Atmosphere Model Coupled to the Community Land Model Using Prognostic Leaf Area
Publisher: American Meteorological Society
Abstract: Observations show that emergence of foliage in springtime slows surface air temperature warming as a result of greater transpiration. Model simulations with the Community Atmosphere Model coupled to the Community Land Model ...
Evaluating Aspects of the Community Land and Atmosphere Models (CLM3 and CAM3) Using a Dynamic Global Vegetation Model
Publisher: American Meteorological Society
Abstract: The Community Land Model version 3 (CLM3) Dynamic Global Vegetation Model (CLM?DGVM) is used diagnostically to identify land and atmospheric model biases that lead to biases in the simulated vegetation. The CLM?DGVM driven ...
Large-Scale Vegetation Feedbacks on a Doubled CO2 Climate
Publisher: American Meteorological Society
Abstract: Changes in vegetation cover are known to influence the climate system by modifying the radiative, momentum, and hydrologic balance of the land surface. To explore the interactions between terrestrial vegetation and the ...
Evaluation of the New CNDV Option of the Community Land Model: Effects of Dynamic Vegetation and Interactive Nitrogen on CLM4 Means and Variability
Publisher: American Meteorological Society
Abstract: he Community Land Model, version 4 (CLM4) includes the option to run the prognostic carbon?nitrogen (CN) model with dynamic vegetation (CNDV). CNDV, which simulates unmanaged vegetation, modifies the CN framework to implement ...
Soil Moisture Feedbacks to Precipitation in Southern Africa
Publisher: American Meteorological Society
Abstract: The effects of increased soil moisture on wet season (October?March) precipitation in southern Africa are investigated using the Community Climate System Model version 3 (CCSM3). In the CTRL case, soil moisture is allowed ...
Last Glacial Maximum and Holocene Climate in CCSM3
Publisher: American Meteorological Society
Abstract: The climate sensitivity of the Community Climate System Model version 3 (CCSM3) is studied for two past climate forcings, the Last Glacial Maximum (LGM) and the mid-Holocene. The LGM, approximately 21 000 yr ago, is a ...
The Influence of Chronic Ozone Exposure on Global Carbon and Water Cycles
Publisher: American Meteorological Society
Abstract: zone (O3) is a phytotoxic greenhouse gas that has increased more than threefold at Earth?s surface from preindustrial values. In addition to directly increasing radiative forcing as a greenhouse gas, O3 indirectly impacts ...
The Low-Resolution CCSM4
Publisher: American Meteorological Society
Abstract: he low-resolution version of the Community Climate System Model, version 4 (CCSM4) is a computationally efficient alternative to the intermediate and standard resolution versions of this fully coupled climate system model. ...
True to Milankovitch: Glacial Inception in the New Community Climate System Model
Publisher: American Meteorological Society
Abstract: he equilibrium solution of a fully coupled general circulation model with present-day orbital forcing is compared to the solution of the same model with the orbital forcing from 115 000 years ago. The difference in snow ...
Interactive Crop Management in the Community Earth System Model (CESM1): Seasonal Influences on Land–Atmosphere Fluxes
Publisher: American Meteorological Society
Abstract: he Community Earth System Model, version 1 (CESM1) is evaluated with two coupled atmosphere?land simulations. The CTRL (control) simulation represents crops as unmanaged grasses, while CROP represents a crop managed ...