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Abstract

THE PAPER OUTLINES THE VARIOUS PROBLEMS ENCOUNTERED IN THE USE OF THE THEMATIC MAPPER (TM) FOR MONITORING WATER QUALITY, WITH RESPECT TO PHYTOPLANKTON AND SUSPENDED SEDIMENT CONCENTRATIONS IN COASTAL WATERS. THE PERFORMANCE OF THE TM WAS COMPARED WITH THAT OF THE COASTAL ZONE COLOUR SCANNER; IT APPEARS TO YIELD INFORMATION OF ACCEPTABLE STANDARD. THE TM IMAGE DE-STRIPING PROCEDURE IS BASED ON ANALYSIS OF SCANNER OBSCURATION TIME. THE RESULTS OF SEVERAL ATMOSPHERIC CORRECTION SCHEMES ARE COMPARED. RETRIEVAL ALGORITHMS ARE DETERMINED THROUGH IN-SITU MEASUREMENTS OF SPECTRAL IRRADIANCE AS WELL AS CHLOROPHYLL AND SUSPENDED SEDIMENT CONCENTRATIONS. TM SCHEMES FOR THE OUTLET OF THE RIVER PO AND FOR THE GULF OF NAPLES ARE DESCRIBED. SUN-GLITTER IS THE GREATEST SOURCE OF ERROR, ESPECIALLY IN MID-SUMMER. THE LOW REPETITION RATE (ONE PASS EVERY 16 DAYS) AND MODEST SWATH (188 LCM) PREVENT THE USE OF TM FOR EVENTS OF SHORT TIME DURATION OR OF LARGE SCALE.

Additional information

Authors: TASSAN S JRC-ISPRA, JRC-ISPRA
Bibliographic Reference: PAPER PRESENTED: 16TH CONGRESS OF THE INTERNATIONAL SOCIETY FOR PHOTOGRAMMETRY AND REMOTE SENSING, KYOTO/JAPAN, JULY 1-10, 1988
Availability: Can be ordered online
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