Coastal Altimetry Ted Strub Corinne James, Martin Saraceno, Remko Scharoo and many colleagues
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Coastal Altimetry Ted Strub Corinne James, Martin Saraceno, Remko Scharoo and many colleagues
description
Coastal Altimetry Ted Strub Corinne James, Martin Saraceno, Remko Scharoo and many colleagues. Issues for Coastal Oceangraphy and Inland Hydrology. Data sets to be used – here we use the US west coast. Time and space scales to be resolved. Use of tide gauges. - PowerPoint PPT Presentation
Transcript of Coastal Altimetry Ted Strub Corinne James, Martin Saraceno, Remko Scharoo and many colleagues
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Coastal Altimetry
Ted StrubCorinne James, Martin Saraceno, Remko Scharooand many colleagues
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Issues for Coastal Oceangraphy and Inland Hydrology Data sets to be used here we use the US west coast. Time and space scales to be resolved. Use of tide gauges. Use of alternate corrections (we tropo). Help from numerical models of coastal circulation.
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Altimeter Issues For Coastal Oceanography Time and space scales to be resolved. ~ 3-5 days; 10 km offshore; 300 km alongshore Use of tide gauges can help. Use of alternate corrections (we tropo, etc.) are needed. Need some in water current measurements. Help is needed from numerical models of coastal circulation.
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Jason-1 (blue) and T/P-2 (red)TTTTTTTSan Diego TNeah Bay TNorth SpitT
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~ June 18~ June 28~ July 8Extending the Altimeter Alongtrack SSH to the Coast2005Signal of 20-30 cm when then altimeter crosses the upwelling jet and dense upwelled water. Within 20-50 km of the coast.
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~ June 18~ June 28~ July 8Extending the Altimeter Alongtrack SSH to the Coast2005Signal of 20-30 cm when then altimeter crosses the upwelling jet and dense upwelled water. Within 20-50 km of the coast.
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Day 269, 2001, track 206Day 271, 2001, track 247TopexModel(courtesy S. Springer, OSU)ROMS Model: SSH variability is associated w/ coastal currents and eddies Model variability is comparable to alongtrack Topex altimetryMap satellite SSH in coastal ocean: via variational data assimilation
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Alongshore depth-ave currents at mid-shelf mooring locations along Oregon coast (summer 2002): model (Koch, Erofeeva, Choi) obs (Kosro, Hickey, Ramp)Off NewportOff Coos BayOff Rogue R.2-3 day variability in currents associated with wind stress variability: challenge for analysis of satellite altimetry (insufficient temporal resolution)
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Altimeter Issues For Coastal Oceanography Time and space scales to be resolved. ~ 3-5 days; 10 km offshore; 300 km alongshore Use of tide gauges can help. Use of alternate corrections (we tropo, etc.) are needed. Need some in water current measurements. Help is needed from numerical models of coastal circulation.
