Remote sensing for the identification of coastal plumes: case studies of Delaware Bay
Abstract:Two Delaware coastal plume events are studied using various remote sensing data. Satellite images obtained from the Advanced Very High Resolution Radiometer (AVHRR), the Moderate Resolution Imaging Spectroradiometer (MODIS) and the Sea-viewing Wide Field-of-view Sensor (SeaWiFS) are processed and enhanced to identify coastal plumes from Delaware Bay. Both visible band and infrared sensors give similar results in terms of the plume boundary. The gradient images of both types of sensors show the twin-front structure near Cape Henlopen, which is also captured in a Synthetic Aperture Radar (SAR) image. Six consecutive SST images are used to track plume variability due to tidal forcing and the features of the plume front are found to be different between ebb and flood tides. Five consecutive SST images taken during a pronounced upwelling-favourable wind event show the plume widened and separated offshore, while cooler water upwelled onshore of the separated plume.
Document Type: Research Article
Affiliations: 1: Center for Remote Sensing, College of Marine and Earth Studies, University of Delaware, Newark, DE 19716, USA 2: Center for Remote Sensing, College of Marine and Earth Studies, University of Delaware, Newark, DE 19716, USA,State Key Laboratory of Marine Environmental Science, Xiamen University, Xiamen, China
Publication date: April 1, 2009