A Comparison of NARCM Simulations with Observations from the 1993 NARE Intensive
Abstract
The Northern Aerosol Regional Climate Model (NARCM) is the result of the coupling of the Canadian Aerosol Module (CAM) with the Canadian Regional Climate Model. CAM represents the emissions and processes affecting sea salt, sulphate, black carbon and primary organic carbon using 12 size bins. Nucleation, coagulation, condensation and in-cloud oxidation of sulfur dioxide, among many other processes, are explicitly represented in the model. Oxidant concentrations are taken off-line from the MOZART model. NARCM was used to simulate the September 4-7 period of the 1993 summer intensive measurement campaign of the North Atlantic Regional Experiment (NARE). The measurements for this case were conducted over the Bay of Fundy and Gulf of Maine within a 100 km radius of Yarmouth, Nova Scotia, Canada. Low stratus developed during the afternoon of September 5 and by late in the day covered the sampling area. The stratus formed below 800 m as a result of the cooling of warmer and moister air from the south as it was advected over the cooler waters in the Bay of Fundy and Gulf of Maine. These conditions persisted until September 7. Comparison of the NARCM simulations are made to the observations of state parameters, sulfur dioxide, sulfate, cloud liquid water content, and aerosol size distribution.
- Publication:
-
AGU Spring Meeting Abstracts
- Pub Date:
- May 2001
- Bibcode:
- 2001AGUSM...A61A06I
- Keywords:
-
- 0305 Aerosols and particles (0345;
- 4801);
- 0320 Cloud physics and chemistry