1. OPeNDAP/DODS Data URL: http://nomads.ncdc.noaa.gov:80/dods/NCEP_NARR_DAILY/201008/20100801/narr- a_221_20100801_0000_000 Description: Select North American Regional Reanalysis - 3hr time steps Longitude: -220.0°E to -0.4375°E (1172 points, avg. res. 0.188°) Latitude: 0.0°N to 89.8125°N (480 points, avg. res. 0.188°)

2. MAB shelf circulation Models and data describing mean, seasonal and higher frequency variability on the inner shelf relevant to Chesapeake Bay/shelf exchange circulation Preparing for synchronous downscaling of basin/regional “IOOS-class” models to coastal domains J. Wilkin, J. Levin, J. Zavala-Garay, N. Fleming and E. Hunter at Rutgers

3. Modeling or analysis systemTime period available Global NCOM with NCODAArchive at NGI from Jun 2008 Global HyCOM with NCODA MVOI assimilationSince Nov 2003 at hycom.org RTOFSSince June 2006 Mercator / MyOcean (EU)Since 2003 wit changing resolution NOAA ETSURGE – high frequency water levelsSince Jun 2007 Rutgers ROMS-ESP RE SSO with 4DVAR all MARCOOS obs (CODAR, altim, SST, in situ T/S) Real-time since Nov 2009; discontinuous reanalysis from 2006 UMassD-HOPS MARCOOS Gulf Stream feature model OI assimilation Since Mar 2009 USGS ROMS COAWST – ocean/waves/atmosphere (no assimilation) Since Aug 2009 NCSU ROMS MABGOM2003-2006 Climatology HydroBase – optimal interpolationMonthly temp, salt Climatology MOCHA – weighted least squaresMonthly temp, salt Climatology ROMS/MOCHA 4DVAR – dynamically constrained Monthly temp, salt, u, v, ssh