We present the initial results of nesting a 5km HOPS Primitive Equation (PE) simulation for the Gulf of Maine in a course resolution Global Circulation Model (GCM) to provide high-resolution forecasts of mesoscale features in the Gulf of Maine. The resulting mesoscale fields are available for other studies (e.g. cod and lobster temperature dependent behavior change, including recruitment).

For this demonstration of concept, we combine the (1°) climate predictions from the Parallel CLimate Model (PCM) with a Gulf of Maine Feature Model. There are three main steps:

1. Creating a synoptic scale initialization for current conditions.
2. Adjusting the current initialization for forecast climate changes.
3. Dynamically adjusting the initialization fields with the HOPS PE model.

The adjusted model fields are available, in netCDF format, below. Also included is a quick reference to the important variables in the files.

• hops2000sep.nc September 2000 fields.
• hops2085sep.nc September 2085 fields.
• descriptor.txt Description of contents of above files.

September 2000	September 2085