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Heat storage in the oceanic upper mixed layer inferred from landsat data
Science (New York, N.Y.)
|February 16, 1979
Summary
Scientists can estimate oceanic heat storage using satellite imagery by analyzing internal wave patterns. This method, based on tidal flow over topography, offers a promising approach for oceanographic research and monitoring.
Area of Science:
- Oceanography
- Remote Sensing
- Fluid Dynamics
Background:
- Internal wave packets are generated by tidal flow over undersea topography.
- The spacing of these wave packets relates to their propagation speed.
- Propagation speed is influenced by upper ocean density anomalies and mixed layer depth.
Purpose of the Study:
- To determine oceanic heat storage using satellite-derived data.
- To compare satellite-based heat storage calculations with in situ observations.
Main Methods:
- Analyzing the spacing of internal wave packets from satellite images (Landsat) to determine propagation speed.
- Calculating density anomaly and upper mixed layer depth.
- Attributing density anomaly to temperature to estimate heat storage.
- Comparing satellite-derived heat storage with in situ measurements.
Main Results:
- A method was developed to calculate oceanic heat storage from satellite imagery of internal wave packets.
- Comparison with in situ data suggests the method has potential merit.
- The relationship between wave packet spacing, propagation speed, and heat storage was explored.
Conclusions:
- Satellite remote sensing of internal wave patterns offers a viable method for estimating oceanic heat storage.
- The findings support further refinement of this technique for oceanographic applications.
- This approach could enhance our understanding of upper ocean thermal properties.
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