1 / 7

Rain Rates Measured Acoustically Using Passive Aquatic Listener

This presentation discusses the innovative use of passive acoustic monitoring to measure rainfall rates and wind speeds in oceanic environments. Collaborating with experts from the University of Washington's Applied Physics Laboratory, the research utilizing Argo floats and passive aquatic listeners demonstrates significant findings from the SPURS region in the Equatorial Pacific. Initial comparisons to central mooring and satellite data show promising correlations in climatology, reinforcing the viability of this technology for long-term ocean monitoring.

beau-cherry
Télécharger la présentation

Rain Rates Measured Acoustically Using Passive Aquatic Listener

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Rain Rates Measured Acoustically Using Passive Aquatic Listener Jie Yang, William E. Asher, Jeffrey A. Nystuen, and Andrew T. Jessup Applied Physics Laboratory, University of Washington Acoustics Department talk, April 7, 2014

  2. Argo floats (collaboration with Steve Riser) PAL for moorings • Adaptive underwater recorder • Very low power consumption • High bandwidth (1-40 kHz) • Park depth – 2000 m Park depth – 1000 m Profile duration – several days Expected lifetime – several years Iridium communication – 2-way

  3. TropicalPacificFloat #69174/2011 – 3/2012

  4. 200 km 220 km Float trajectories during SPURS (Thanks to Jessica Anderson for the figure) Float 7587

  5. Comparison of wind speed between PAL and central mooring Float 7587

  6. Comparison of accumulated rain amount Float 6923 Float 7681 Float 7587

  7. Summary • Passive acoustic monitoring of the ocean can provide measurements of wind speed and rainfall rate • Passive acoustic monitoring technology has been deployed on STS/PAL floats • Initial results from five STS/PAL floats (SPURS region, Equatorial Pacific, and Bay of Bengal) show wind speed and rainfall climatology • Acoustically derived wind speed compares very well with central mooring MET data • Comparison between acoustically derived rainfall accumulation using the twelve SPURS STS/PAL floats with satellite data is very encouraging

More Related